Migrate to protorpc (#598)

* refactor: migrate from grpc to protorpc

* fix

* fix

* fix

* cleanup

* Update mainwindow_grpc.cpp

* Update RPC.cpp

* fix

---------

Co-authored-by: parhelia512 <0011d3@gmail.com>

.github/workflows/build.yml

@@ -72,7 +72,7 @@ jobs:
         if: matrix.cross_os != 'public_res'
         run: |
           go install github.com/golang/protobuf/protoc-gen-go@latest
-          go install google.golang.org/grpc/cmd/protoc-gen-go-grpc@latest
+          go install github.com/chai2010/protorpc/protoc-gen-protorpc@latest
       - name: Build golang parts
         if: steps.cache-common.outputs.cache-hit != 'true'
         shell: bash

3rdparty/protorpc/rpc_client.cc

@@ -0,0 +1,97 @@
+// Copyright 2013 <chaishushan{AT}gmail.com>. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+#include "3rdparty/protorpc/rpc_client.h"
+#include "3rdparty/protorpc/rpc_wire.h"
+
+namespace protorpc {
+
+Client::Client(const char* host, int port):
+	conn_(0), host_(host), port_(port), seq_(0) {
+	//
+}
+Client::~Client() {
+	Close();
+}
+
+const ::protorpc::Error Client::CallMethod(
+	const std::string& method,
+	const ::std::string* request,
+	::std::string* response
+) {
+	if(!checkMothdValid(method, request, response)) {
+		return ::protorpc::Error::New(
+			std::string("protorpc.Client.CallMethod: Invalid method, method: ") + method
+		);
+	}
+	return callMethod(method, request, response);
+}
+
+// Close the connection
+void Client::Close() {
+	conn_.Close();
+}
+
+// --------------------------------------------------------
+
+const ::protorpc::Error Client::callMethod(
+	const std::string& method,
+	const ::std::string* request,
+	::std::string* response
+) {
+	if(!conn_.IsValid()) {
+		if(!conn_.DialTCP(host_.c_str(), port_)) {
+			return ::protorpc::Error::New(
+				std::string("protorpc.Client.callMethod: DialTCP fail, ") +
+				std::string("host: ") + host_ + std::string(":") + std::to_string(static_cast<long long>(port_))
+			);
+		}
+	}
+
+	Error err;
+
+	uint64_t id = seq_++;
+	wire::ResponseHeader respHeader;
+
+	// send request
+	err = wire::SendRequest(&conn_, id, method, request);
+	if(!err.IsNil()) {
+		return err;
+	}
+
+	// recv response hdr
+	err = wire::RecvResponseHeader(&conn_, &respHeader);
+	if(!err.IsNil()) {
+		return err;
+	}
+	// recv response body
+	err = wire::RecvResponseBody(&conn_, &respHeader, response);
+	if(!err.IsNil()) {
+		return err;
+	}
+	if(respHeader.id != id) {
+		return Error::New("protorpc.Client.callMethod: unexpected call id.");
+	}
+	if(!respHeader.error.empty()) {
+		return Error::New(respHeader.error);
+	}
+
+	return Error::Nil();
+}
+
+// --------------------------------------------------------
+
+bool Client::checkMothdValid(
+	const std::string& method,
+	const ::std::string* request,
+	::std::string* response
+) const {
+	if(method.empty()) return false;
+	if(!request) return false;
+	if(!response) return false;
+	return true;
+}
+
+} // namespace protorpc
+

3rdparty/protorpc/rpc_client.h

@@ -0,0 +1,53 @@
+// Copyright 2013 <chaishushan{AT}gmail.com>. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+#pragma once
+
+#ifndef PROTORPC_CLIENT_H__
+#define PROTORPC_CLIENT_H__
+
+#include "3rdparty/protorpc/rpc_conn.h"
+#include "3rdparty/protorpc/rpc_error.h"
+
+#include <stdint.h>
+#include <string>
+
+namespace protorpc {
+
+class Client {
+public:
+	Client(const char* host, int port);
+	~Client();
+
+	const ::protorpc::Error CallMethod(
+		const std::string& method,
+		const ::std::string* request,
+		::std::string* response
+	);
+
+	// Close the connection
+	void Close();
+
+private:
+	const ::protorpc::Error callMethod(
+		const std::string& method,
+		const ::std::string* request,
+		::std::string* response
+	);
+
+	bool checkMothdValid(
+		const std::string& method,
+		const ::std::string* request,
+		::std::string* response
+	) const;
+
+	std::string host_;
+	int port_;
+	Conn conn_;
+	uint64_t seq_;
+};
+
+} // namespace protorpc
+
+#endif // PROTORPC_CLIENT_H__

3rdparty/protorpc/rpc_conn.cc

@@ -0,0 +1,98 @@
+// Copyright 2013 <chaishushan{AT}gmail.com>. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+#include "3rdparty/protorpc/rpc_conn.h"
+
+#if (defined(_WIN32) || defined(_WIN64))
+#	include "./rpc_conn_windows.cc"
+#else
+#	include "./rpc_conn_posix.cc"
+#endif
+
+namespace protorpc {
+
+// MaxVarintLenN is the maximum length of a varint-encoded N-bit integer.
+static const int maxVarintLen16 = 3;
+static const int maxVarintLen32 = 5;
+static const int maxVarintLen64 = 10;
+
+// PutUvarint encodes a uint64 into buf and returns the number of bytes written.
+// If the buffer is too small, PutUvarint will panic.
+static int putUvarint(uint8_t buf[], uint64_t x) {
+	auto i = 0;
+	while(x >= 0x80) {
+		buf[i] = uint8_t(x) | 0x80;
+		x >>= 7;
+		i++;
+	}
+	buf[i] = uint8_t(x);
+	return i + 1;
+}
+
+// ReadUvarint reads an encoded unsigned integer from r and returns it as a uint64.
+bool Conn::ReadUvarint(uint64_t* rx) {
+	uint64_t x;
+	uint8_t s, b;
+
+	*rx = 0;
+	x = 0;
+	s = 0;
+
+	for(int i = 0; ; i++) {
+		if(!Read(&b, 1)) {
+			return false;
+		}
+		if(b < 0x80) {
+			if(i > 9 || i == 9 && b > 1){
+				printf("protorpc.Conn.ReadUvarint: varint overflows a 64-bit integer\n");
+				return false;
+			}
+			*rx = (x | uint64_t(b)<<s);
+			return true;
+		}
+		x |= (uint64_t(b&0x7f) << s);
+		s += 7;
+	}
+	printf("not reachable!\n");
+	return false;
+}
+
+// PutUvarint encodes a uint64 into buf and returns the number of bytes written.
+// If the buffer is too small, PutUvarint will panic.
+bool Conn::WriteUvarint(uint64_t x) {
+	uint8_t buf[maxVarintLen64];
+	int n = putUvarint(buf, x);
+	return Write(buf, n);
+}
+
+bool Conn::RecvFrame(::std::string* data) {
+	uint64_t size;
+	if(!ReadUvarint(&size)) {
+		return false;
+	}
+	if(size != 0) {
+		data->resize(size_t(size));
+		if(!Read((void*)data->data(), int(size))) {
+			data->clear();
+			return false;
+		}
+	}
+	return true;
+}
+
+bool Conn::SendFrame(const ::std::string* data) {
+	if(data == NULL) {
+		return WriteUvarint(uint64_t(0));
+	}
+
+	if(!WriteUvarint(uint64_t(data->size()))) {
+		return false;
+	}
+	if(!Write((void*)data->data(), data->size())) {
+		return false;
+	}
+	return true;
+}
+
+} // namespace protorpc

3rdparty/protorpc/rpc_conn.h

@@ -0,0 +1,49 @@
+// Copyright 2013 <chaishushan{AT}gmail.com>. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+#pragma once
+
+#ifndef PROTORPC_CONN_H__
+#define PROTORPC_CONN_H__
+
+#include <stdarg.h>
+#include <stdint.h>
+#include <string>
+
+namespace protorpc {
+
+// Initialize socket services
+bool InitSocket();
+
+// Stream-oriented network connection.
+class Conn {
+public:
+	Conn(int fd=0): sock_(fd) { InitSocket(); }
+	~Conn() {}
+
+	bool IsValid() const;
+	bool DialTCP(const char* host, int port);
+	bool ListenTCP(int port, int backlog=5);
+	void Close();
+
+	Conn* Accept();
+
+	bool Read(void* buf, int len);
+	bool Write(void* buf, int len);
+
+	bool ReadUvarint(uint64_t* x);
+	bool WriteUvarint(uint64_t x);
+
+	bool RecvFrame(::std::string* data);
+	bool SendFrame(const ::std::string* data);
+
+private:
+
+	int sock_;
+};
+
+}  // namespace protorpc
+
+#endif // PROTORPC_CONN_H__
+

3rdparty/protorpc/rpc_conn_posix.cc

@@ -0,0 +1,145 @@
+// Copyright 2013 <chaishushan{AT}gmail.com>. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+#include "3rdparty/protorpc/rpc_conn.h"
+
+#include <string.h>
+#include <errno.h>
+#include <sys/time.h>
+#include <arpa/inet.h>
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <sys/un.h>
+#include <netdb.h>
+#include <netinet/in.h>
+#include <netinet/tcp.h>
+#include <fcntl.h>
+#include <unistd.h>
+
+#if defined(__APPLE__) && !defined(MSG_NOSIGNAL)
+#	define MSG_NOSIGNAL 0x4000
+#endif
+
+#ifndef NI_MAXSERV
+# define NI_MAXSERV 32
+#endif
+
+namespace protorpc {
+
+// [static]
+// Initialize socket services
+bool InitSocket() {
+	return true;
+}
+
+bool Conn::IsValid() const {
+	return sock_ != 0;
+}
+
+bool Conn::DialTCP(const char* host, int port) {
+	struct sockaddr_in sa;
+	int status, len;
+
+	if(IsValid()) Close();
+	if((sock_ = socket(AF_INET, SOCK_STREAM, 0)) < 0) {
+		printf("protorpc.Conn.DialTCP: socket failed.\n");
+		sock_ = 0;
+		return false;
+	}
+
+	memset(sa.sin_zero, 0 , sizeof(sa.sin_zero));
+	sa.sin_family = AF_INET;
+	sa.sin_port = htons(port);
+	sa.sin_addr.s_addr = inet_addr(host);
+	size_t addressSize = sizeof(sa);
+
+	if(connect(sock_, (struct sockaddr*)&sa, addressSize) == -1) {
+		printf("protorpc.Conn.DialTCP: connect failed.\n");
+		Close();
+		return false;
+	}
+
+	int flag = 1;
+	setsockopt(sock_, IPPROTO_TCP, TCP_NODELAY, (char*)&flag, sizeof(flag));
+	return true;
+}
+
+bool Conn::ListenTCP(int port, int backlog) {
+	if(IsValid()) Close();
+	if((sock_ = socket(AF_INET, SOCK_STREAM, 0)) < 0) {
+		printf("protorpc.Conn.ListenTCP: socket failed.\n");
+		sock_ = 0;
+		return false;
+	}
+
+	struct sockaddr_in saddr;
+	memset(&saddr, 0, sizeof(saddr));
+	saddr.sin_family = AF_INET;
+	saddr.sin_addr.s_addr = htonl(INADDR_ANY);
+	saddr.sin_port = htons((u_short) port);
+
+	if(bind(sock_, (struct sockaddr*)&saddr, sizeof(saddr)) == -1) {
+		printf("protorpc.Conn.ListenTCP: bind failed.\n");
+		Close();
+		return false;
+	}
+	if(::listen(sock_, backlog) != 0) {
+		printf("protorpc.Conn.ListenTCP: listen failed.\n");
+		Close();
+		return false;
+	}
+
+	int flag = 1;
+	setsockopt(sock_, IPPROTO_TCP, TCP_NODELAY, (char*)&flag, sizeof(flag));
+	return true;
+}
+
+void Conn::Close() {
+	if(IsValid()) {
+		::close(sock_);
+		sock_ = 0;
+	}
+}
+
+Conn* Conn::Accept() {
+	struct sockaddr_in addr;
+	socklen_t addrlen = sizeof(addr);
+	int sock = ::accept(sock_, (struct sockaddr*)&addr, &addrlen);
+	if(sock == 0) {
+		printf("protorpc.Conn.Accept: failed.\n");
+		return NULL;
+	}
+	return new Conn(sock);
+}
+
+bool Conn::Read (void* buf, int len) {
+	char *cbuf = (char*)buf;
+	while(len > 0) {
+		int sent = recv(sock_, cbuf, len, 0);
+		if(sent == 0 || sent == -1) {
+			printf("protorpc.Conn.Read: IO error, err = %d.\n", errno);
+			return false;
+		}
+		cbuf += sent;
+		len -= sent;
+	}
+	return true;
+}
+bool Conn::Write(void* buf, int len) {
+	const char *cbuf = (char*)buf;
+	int flags = MSG_NOSIGNAL;
+
+	while(len > 0) {
+	int sent = send(sock_, cbuf, len, flags);
+		if(sent == -1) {
+			printf("protorpc.Conn.Write: IO error, err = %d.\n", errno);
+			return false;
+		}
+		cbuf += sent;
+		len -= sent;
+	}
+	return true;
+}
+
+} // namespace protorpc

3rdparty/protorpc/rpc_conn_windows.cc

@@ -0,0 +1,150 @@
+// Copyright 2013 <chaishushan{AT}gmail.com>. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+#include "3rdparty/protorpc/rpc_conn.h"
+
+#include <string.h>
+
+#ifdef _MSC_VER
+#	include <ws2tcpip.h> /* send,recv,socklen_t etc */
+#	include <wspiapi.h>  /* addrinfo */
+#	pragma comment(lib, "ws2_32.lib")
+#else
+#	include <ws2tcpip.h> /* send,recv,socklen_t etc */
+#	include <winsock2.h>
+typedef int socklen_t;
+#endif
+
+#ifndef NI_MAXSERV
+# define NI_MAXSERV 32
+#endif
+
+namespace protorpc {
+
+// [static]
+// Initialize socket services
+bool InitSocket() {
+	WSADATA wsaData;
+	WORD wVers;
+	static bool called_once = false;
+	static bool retval = false;
+
+	if(called_once) return retval;
+
+	called_once = true;
+	wVers = MAKEWORD(1, 1);
+	retval = (WSAStartup(wVers, &wsaData) == 0);
+
+	return retval;
+}
+
+bool Conn::IsValid() const {
+	return sock_ != 0;
+}
+
+bool Conn::DialTCP(const char* host, int port) {
+	if(IsValid()) Close();
+	if((sock_ = socket(AF_INET, SOCK_STREAM, 0)) < 0) {
+		printf("protorpc.Conn.DialTCP: socket failed.\n");
+		sock_ = 0;
+		return false;
+	}
+
+	struct sockaddr_in sa;
+	socklen_t addressSize;
+	memset(sa.sin_zero, 0 , sizeof(sa.sin_zero));
+	sa.sin_family = AF_INET;
+	sa.sin_port = htons(port);
+	sa.sin_addr.s_addr = inet_addr(host);
+	addressSize = sizeof(sa);
+
+	if(connect(sock_, ( struct sockaddr*)&sa, addressSize) == -1 ) {
+		printf("protorpc.Conn.DialTCP: connect failed.\n");
+		Close();
+		return false;
+	}
+
+	int flag = 1;
+	setsockopt(sock_, IPPROTO_TCP, TCP_NODELAY, (char*)&flag, sizeof(flag));
+	return true;
+}
+
+bool Conn::ListenTCP(int port, int backlog) {
+	if(IsValid()) Close();
+	if((sock_ = socket(AF_INET, SOCK_STREAM, 0)) < 0) {
+		printf("protorpc.Conn.ListenTCP: socket failed.\n");
+		sock_ = 0;
+		return false;
+	}
+
+	struct sockaddr_in saddr;
+	memset(&saddr, 0, sizeof(saddr));
+	saddr.sin_family = AF_INET;
+	saddr.sin_addr.s_addr = htonl(INADDR_ANY);
+	saddr.sin_port = htons((u_short) port);
+
+	if(bind(sock_, (struct sockaddr*)&saddr, sizeof(saddr)) == -1) {
+		printf("protorpc.Conn.ListenTCP: bind failed.\n");
+		Close();
+		return false;
+	}
+	if(::listen(sock_, backlog) != 0) {
+		printf("protorpc.Conn.ListenTCP: listen failed.\n");
+		Close();
+		return false;
+	}
+
+	int flag = 1;
+	setsockopt(sock_, IPPROTO_TCP, TCP_NODELAY, (char*)&flag, sizeof(flag));
+	return true;
+}
+
+void Conn::Close() {
+	if(IsValid()) {
+		::closesocket(sock_);
+		sock_ = 0;
+	}
+}
+
+Conn* Conn::Accept() {
+	struct sockaddr_in addr;
+	int addrlen = sizeof(addr);
+	int sock = ::accept(sock_, (struct sockaddr*)&addr, &addrlen);
+	if(sock == 0) {
+		printf("protorpc.Conn.Accept: failed.\n");
+		return NULL;
+	}
+	return new Conn(sock);
+}
+
+bool Conn::Read (void* buf, int len) {
+	char *cbuf = (char*)buf;
+	while(len > 0) {
+		int sent = recv(sock_, cbuf, len, 0);
+		if(sent == 0 || sent == -1) {
+			printf("protorpc.Conn.Read: IO error, err = %d.\n", WSAGetLastError());
+			return false;
+		}
+		cbuf += sent;
+		len -= sent;
+	}
+	return true;
+}
+bool Conn::Write(void* buf, int len) {
+	const char *cbuf = (char*)buf;
+	int flags = 0;
+
+	while(len > 0) {
+		int sent = send(sock_, cbuf, len, flags );
+		if(sent == -1) {
+			printf("protorpc.Conn.Write: IO error, err = %d.\n", WSAGetLastError());
+			return false;
+		}
+		cbuf += sent;
+		len -= sent;
+	}
+	return true;
+}
+
+} // namespace protorpc

3rdparty/protorpc/rpc_error.h

@@ -0,0 +1,32 @@
+// Copyright 2013 <chaishushan{AT}gmail.com>. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+#pragma once
+
+#ifndef PROTORPC_ERROR_H__
+#define PROTORPC_ERROR_H__
+
+namespace protorpc {
+
+// Error
+class Error {
+public:
+	Error(){}
+	Error(const std::string& err): err_text_(err) {}
+	Error(const Error& err): err_text_(err.err_text_) {}
+	~Error(){}
+
+	static Error Nil() { return Error(); }
+	static Error New(const std::string& err) { return Error(err); }
+
+	bool IsNil()const { return err_text_.empty(); }
+	const std::string& String()const { return err_text_; }
+
+private:
+	std::string err_text_;
+};
+
+} // namespace protorpc
+
+#endif // PROTORPC_ERROR_H__

3rdparty/protorpc/rpc_wire.cc

@@ -0,0 +1,158 @@
+// Copyright 2013 <chaishushan{AT}gmail.com>. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+#include "3rdparty/protorpc/rpc_wire.h"
+
+namespace protorpc {
+namespace wire {
+
+Error SendRequest(Conn* conn,
+	uint64_t id, const std::string& serviceMethod,
+	const ::std::string* request
+) {
+	// marshal request
+	std::string pbRequest;
+	if(request != NULL) {
+		pbRequest = *request;
+	}
+
+	// generate header
+	RequestHeader header;
+
+	header.id = id;
+	header.method = serviceMethod;
+
+	header.raw_request_len = pbRequest.size();
+
+	// check header size
+	std::string pbHeader = spb::pb::serialize<std::string>(header);
+	if(pbHeader.size() > (unsigned int)protorpc::wire::Const::MAX_REQUEST_HEADER_LEN) {
+		return Error::New("protorpc.SendRequest: header larger than max_header_len.");
+	}
+
+	// send header
+	if(!conn->SendFrame(&pbHeader)) {
+		return Error::New("protorpc.SendRequest: SendFrame header failed.");
+	}
+
+	// send body
+	if(!conn->SendFrame(&pbRequest)) {
+		return Error::New("protorpc.SendRequest: SendFrame body failed.");
+	}
+
+	return Error::Nil();
+}
+
+Error RecvRequestHeader(Conn* conn,
+	RequestHeader* header
+) {
+	// recv header
+	std::string pbHeader;
+	if(!conn->RecvFrame(&pbHeader)) {
+		return Error::New("protorpc.RecvRequestHeader: RecvFrame failed.");
+	}
+	if(pbHeader.size() > (unsigned int)protorpc::wire::Const::MAX_REQUEST_HEADER_LEN) {
+		return Error::New("protorpc.RecvRequestHeader: RecvFrame larger than max_header_len.");
+	}
+
+	// Marshal Header
+	*header = spb::pb::deserialize<RequestHeader>(pbHeader);
+
+	return Error::Nil();
+}
+
+Error RecvRequestBody(Conn* conn,
+	const RequestHeader* header,
+	::std::string* request
+) {
+	// recv body
+	std::string pbRequest;
+	if(!conn->RecvFrame(&pbRequest)) {
+		return Error::New("protorpc.RecvRequestBody: RecvFrame failed.");
+	}
+
+	// check wire header: rawMsgLen
+	if(pbRequest.size() != header->raw_request_len) {
+		return Error::New("protorpc.RecvRequestBody: Unexcpeted raw msg len.");
+	}
+
+	// marshal request
+	*request = pbRequest;
+
+	return Error::Nil();
+}
+
+Error SendResponse(Conn* conn,
+	uint64_t id, const std::string& error,
+	const ::std::string* response
+) {
+	// marshal response
+	std::string pbResponse;
+	if(response != NULL) {
+		pbResponse = *response;
+	}
+
+	// generate header
+	ResponseHeader header;
+
+	header.id = id;
+	header.error = error;
+
+	header.raw_response_len = pbResponse.size();
+
+	// check header size
+	std::string pbHeader = spb::pb::serialize<std::string>(header);
+
+
+	// send header
+	if(!conn->SendFrame(&pbHeader)) {
+		return Error::New("protorpc.SendResponse: SendFrame header failed.");
+	}
+
+	// send body
+	if(!conn->SendFrame(&pbResponse)) {
+		return Error::New("protorpc.SendResponse: SendFrame body failed.");
+	}
+
+	return Error::Nil();
+}
+
+Error RecvResponseHeader(Conn* conn,
+	ResponseHeader* header
+) {
+	// recv header
+	std::string pbHeader;
+	if(!conn->RecvFrame(&pbHeader)) {
+		return Error::New("protorpc.RecvResponseHeader: RecvFrame failed.");
+	}
+
+	// Marshal Header
+	*header = spb::pb::deserialize<ResponseHeader>(pbHeader);
+
+	return Error::Nil();
+}
+
+Error RecvResponseBody(Conn* conn,
+	const ResponseHeader* header,
+	::std::string* response
+) {
+	// recv body
+	std::string pbResponse;
+	if(!conn->RecvFrame(&pbResponse)) {
+		return Error::New("protorpc.RecvResponseBody: RecvFrame failed.");
+	}
+
+	// check wire header: rawMsgLen
+	if(pbResponse.size() != header->raw_response_len) {
+		return Error::New("protorpc.RecvResponseBody: Unexcpeted raw msg len.");
+	}
+
+	// marshal response
+	*response = pbResponse;
+
+	return Error::Nil();
+}
+
+} // namespace wire
+} // namespace protorpc

3rdparty/protorpc/rpc_wire.h

@@ -0,0 +1,48 @@
+// Copyright 2013 <chaishushan{AT}gmail.com>. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+#pragma once
+
+#ifndef PROTORPC_WIRE_H__
+#define PROTORPC_WIRE_H__
+
+#include <stddef.h>
+#include <stdint.h>
+
+#include "3rdparty/protorpc/wire.pb/wire.pb.h"
+#include "3rdparty/protorpc/rpc_error.h"
+#include "3rdparty/protorpc/rpc_conn.h"
+
+namespace protorpc {
+namespace wire {
+
+Error SendRequest(Conn* conn,
+	uint64_t id, const std::string& serviceMethod,
+	const ::std::string* request
+);
+Error RecvRequestHeader(Conn* conn,
+	RequestHeader* header
+);
+Error RecvRequestBody(Conn* conn,
+	const RequestHeader* header,
+	::std::string* request
+);
+
+Error SendResponse(Conn* conn,
+	uint64_t id, const std::string& error,
+	const ::std::string* response
+);
+Error RecvResponseHeader(Conn* conn,
+	ResponseHeader* header
+);
+Error RecvResponseBody(Conn* conn,
+	const ResponseHeader* header,
+	::std::string* request
+);
+
+} // namespace wire
+} // namespace protorpc
+
+#endif // PROTORPC_WIRE_H__
+

3rdparty/protorpc/wire.pb/wire.pb.cc

@@ -0,0 +1,197 @@
+#include "wire.pb.h"
+#include <spb/json.hpp>
+#include <system_error>
+#include <type_traits>
+
+namespace spb::json
+{
+namespace detail
+{
+void serialize_value( detail::ostream & stream, const ::protorpc::wire::Const & value )
+{
+	switch( value )
+	{
+	case ::protorpc::wire::Const::ZERO:
+		return stream.serialize( "ZERO"sv);
+	case ::protorpc::wire::Const::MAX_REQUEST_HEADER_LEN:
+		return stream.serialize( "MAX_REQUEST_HEADER_LEN"sv);
+	default:
+		throw std::system_error( std::make_error_code( std::errc::invalid_argument ) );
+	}
+}
+
+void deserialize_value( detail::istream & stream, ::protorpc::wire::Const & value )
+{
+	auto enum_value = stream.deserialize_string_or_int( 4, 22 );
+	std::visit( detail::overloaded{
+		[&]( std::string_view enum_str )
+		{
+			const auto enum_hash = djb2_hash( enum_str );
+			switch( enum_hash )
+			{
+			case detail::djb2_hash( "ZERO"sv ):
+				if( enum_str == "ZERO"sv ){
+					value = ::protorpc::wire::Const::ZERO;
+					return ;				}
+				break ;
+			case detail::djb2_hash( "MAX_REQUEST_HEADER_LEN"sv ):
+				if( enum_str == "MAX_REQUEST_HEADER_LEN"sv ){
+					value = ::protorpc::wire::Const::MAX_REQUEST_HEADER_LEN;
+					return ;				}
+				break ;
+			}
+			throw std::system_error( std::make_error_code( std::errc::invalid_argument ) );
+		},
+		[&]( int32_t enum_int )
+		{
+			switch( ::protorpc::wire::Const( enum_int ) )
+			{
+			case ::protorpc::wire::Const::ZERO:
+			case ::protorpc::wire::Const::MAX_REQUEST_HEADER_LEN:
+				value = ::protorpc::wire::Const( enum_int );
+				return ;
+			}
+			throw std::system_error( std::make_error_code( std::errc::invalid_argument ) );
+		}
+	}, enum_value );
+}
+
+} // namespace detail
+namespace detail
+{
+void serialize_value( detail::ostream & stream, const ::protorpc::wire::RequestHeader & value )
+{
+	stream.serialize( "id"sv, value.id );
+	stream.serialize( "method"sv, value.method );
+	stream.serialize( "raw_request_len"sv, value.raw_request_len );
+}
+void deserialize_value( detail::istream & stream, ::protorpc::wire::RequestHeader & value )
+{
+	auto key = stream.deserialize_key( 2, 15 );
+	switch( djb2_hash( key ) )
+	{
+		case detail::djb2_hash( "id"sv ):
+			if( key == "id"sv )
+			{
+				return stream.deserialize( value.id );
+			}
+				break;
+		case detail::djb2_hash( "method"sv ):
+			if( key == "method"sv )
+			{
+				return stream.deserialize( value.method );
+			}
+				break;
+		case detail::djb2_hash( "raw_request_len"sv ):
+			if( key == "raw_request_len"sv )
+			{
+				return stream.deserialize( value.raw_request_len );
+			}
+				break;
+		case detail::djb2_hash( "rawRequestLen"sv ):
+			if( key == "rawRequestLen"sv )
+			{
+				return stream.deserialize( value.raw_request_len );
+			}
+			break;
+	}
+	return stream.skip_value( );
+}
+} // namespace detail
+namespace detail
+{
+void serialize_value( detail::ostream & stream, const ::protorpc::wire::ResponseHeader & value )
+{
+	stream.serialize( "id"sv, value.id );
+	stream.serialize( "error"sv, value.error );
+	stream.serialize( "raw_response_len"sv, value.raw_response_len );
+}
+void deserialize_value( detail::istream & stream, ::protorpc::wire::ResponseHeader & value )
+{
+	auto key = stream.deserialize_key( 2, 16 );
+	switch( djb2_hash( key ) )
+	{
+		case detail::djb2_hash( "id"sv ):
+			if( key == "id"sv )
+			{
+				return stream.deserialize( value.id );
+			}
+				break;
+		case detail::djb2_hash( "error"sv ):
+			if( key == "error"sv )
+			{
+				return stream.deserialize( value.error );
+			}
+				break;
+		case detail::djb2_hash( "rawResponseLen"sv ):
+			if( key == "rawResponseLen"sv )
+			{
+				return stream.deserialize( value.raw_response_len );
+			}
+				break;
+		case detail::djb2_hash( "raw_response_len"sv ):
+			if( key == "raw_response_len"sv )
+			{
+				return stream.deserialize( value.raw_response_len );
+			}
+			break;
+	}
+	return stream.skip_value( );
+}
+} // namespace detail
+} // namespace spb::json
+#include "wire.pb.h"
+#include <spb/pb.hpp>
+#include <type_traits>
+
+namespace spb::pb
+{
+namespace detail
+{
+void serialize( detail::ostream & stream, const ::protorpc::wire::RequestHeader & value )
+{
+	stream.serialize_as<scalar_encoder::varint>( 1, value.id );
+	stream.serialize( 2, value.method );
+	stream.serialize_as<scalar_encoder::varint>( 3, value.raw_request_len );
+}
+void deserialize_value( detail::istream & stream, ::protorpc::wire::RequestHeader & value, uint32_t tag )
+{
+	switch( field_from_tag( tag ) )
+	{
+		case 1:
+			return stream.deserialize_as<scalar_encoder::varint>( value.id, tag );
+		case 2:
+			return stream.deserialize( value.method, tag );
+		case 3:
+			return stream.deserialize_as<scalar_encoder::varint>( value.raw_request_len, tag );
+		default:
+			return stream.skip( tag );	
+}
+}
+
+} // namespace detail
+namespace detail
+{
+void serialize( detail::ostream & stream, const ::protorpc::wire::ResponseHeader & value )
+{
+	stream.serialize_as<scalar_encoder::varint>( 1, value.id );
+	stream.serialize( 2, value.error );
+	stream.serialize_as<scalar_encoder::varint>( 3, value.raw_response_len );
+}
+void deserialize_value( detail::istream & stream, ::protorpc::wire::ResponseHeader & value, uint32_t tag )
+{
+	switch( field_from_tag( tag ) )
+	{
+		case 1:
+			return stream.deserialize_as<scalar_encoder::varint>( value.id, tag );
+		case 2:
+			return stream.deserialize( value.error, tag );
+		case 3:
+			return stream.deserialize_as<scalar_encoder::varint>( value.raw_response_len, tag );
+		default:
+			return stream.skip( tag );	
+}
+}
+
+} // namespace detail
+} // namespace spb::pb

3rdparty/protorpc/wire.pb/wire.pb.h

@@ -0,0 +1,85 @@
+#pragma once
+
+#include <cstddef>
+#include <cstdint>
+#include <spb/json.hpp>
+#include <spb/pb.hpp>
+#include <string>
+
+// Copyright 2013 <chaishushan{AT}gmail.com>. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+//
+//	protorpc wire format wrapper
+//
+//	0. Frame Format
+//	len : uvarint64
+//	data: byte[len]
+//
+//	1. Client Send Request
+//	Send RequestHeader: sendFrame(zsock, hdr, len(hdr))
+//	Send Request: sendFrame(zsock, body, hdr.snappy_compressed_request_len)
+//
+//	2. Server Recv Request
+//	Recv RequestHeader: recvFrame(zsock, hdr, max_hdr_len, 0)
+//	Recv Request: recvFrame(zsock, body, hdr.snappy_compressed_request_len, 0)
+//
+//	3. Server Send Response
+//	Send ResponseHeader: sendFrame(zsock, hdr, len(hdr))
+//	Send Response: sendFrame(zsock, body, hdr.snappy_compressed_response_len)
+//
+//	4. Client Recv Response
+//	Recv ResponseHeader: recvFrame(zsock, hdr, max_hdr_len, 0)
+//	Recv Response: recvFrame(zsock, body, hdr.snappy_compressed_response_len, 0)
+//
+namespace protorpc::wire
+{
+enum class Const : int32_t
+{
+ZERO = 0,
+MAX_REQUEST_HEADER_LEN = 1024,
+};
+struct RequestHeader
+{
+uint64_t id;
+std::string method;
+uint32_t raw_request_len;
+};
+struct ResponseHeader
+{
+uint64_t id;
+std::string error;
+uint32_t raw_response_len;
+};
+}// namespace protorpc::wire
+
+namespace spb::json::detail
+{
+struct ostream;
+struct istream;
+
+void serialize_value( ostream & stream, const protorpc::wire::RequestHeader & value );
+void deserialize_value( istream & stream, protorpc::wire::RequestHeader & value );
+
+
+void serialize_value( ostream & stream, const protorpc::wire::ResponseHeader & value );
+void deserialize_value( istream & stream, protorpc::wire::ResponseHeader & value );
+
+
+void serialize_value( ostream & stream, const protorpc::wire::Const & value );
+void deserialize_value( istream & stream, protorpc::wire::Const & value );
+
+} // namespace spb::json::detail
+namespace spb::pb::detail
+{
+struct ostream;
+struct istream;
+
+void serialize( ostream & stream, const protorpc::wire::RequestHeader & value );
+void deserialize_value( istream & stream, protorpc::wire::RequestHeader & value, uint32_t tag );
+
+
+void serialize( ostream & stream, const protorpc::wire::ResponseHeader & value );
+void deserialize_value( istream & stream, protorpc::wire::ResponseHeader & value, uint32_t tag );
+
+} // namespace spb::pb::detail

3rdparty/protorpc/wire.pb/wire.proto

@@ -0,0 +1,50 @@
+// Copyright 2013 <chaishushan{AT}gmail.com>. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+syntax = "proto2";
+
+//
+//	protorpc wire format wrapper
+//
+//	0. Frame Format
+//	len : uvarint64
+//	data: byte[len]
+//
+//	1. Client Send Request
+//	Send RequestHeader: sendFrame(zsock, hdr, len(hdr))
+//	Send Request: sendFrame(zsock, body, hdr.snappy_compressed_request_len)
+//
+//	2. Server Recv Request
+//	Recv RequestHeader: recvFrame(zsock, hdr, max_hdr_len, 0)
+//	Recv Request: recvFrame(zsock, body, hdr.snappy_compressed_request_len, 0)
+//
+//	3. Server Send Response
+//	Send ResponseHeader: sendFrame(zsock, hdr, len(hdr))
+//	Send Response: sendFrame(zsock, body, hdr.snappy_compressed_response_len)
+//
+//	4. Client Recv Response
+//	Recv ResponseHeader: recvFrame(zsock, hdr, max_hdr_len, 0)
+//	Recv Response: recvFrame(zsock, body, hdr.snappy_compressed_response_len, 0)
+//
+package protorpc.wire;
+option go_package = "protorpc.wire";
+
+enum Const {
+	ZERO = 0;
+	MAX_REQUEST_HEADER_LEN = 1024;
+}
+
+message RequestHeader {
+	required uint64 id = 1;
+	required string method = 2;
+
+	required uint32 raw_request_len = 3;
+}
+
+message ResponseHeader {
+	required uint64 id = 1;
+	required string error = 2;
+
+	required uint32 raw_response_len = 3;
+}

CMakeLists.txt

@@ -85,7 +85,12 @@ set(PROJECT_SOURCES
         3rdparty/quirc/quirc.c
         3rdparty/quirc/version_db.c
 
-        src/api/gRPC.cpp
+        3rdparty/protorpc/rpc_client.cc
+        3rdparty/protorpc/rpc_conn.cc
+        3rdparty/protorpc/rpc_wire.cc
+        3rdparty/protorpc/wire.pb/wire.pb.cc
+
+        src/api/RPC.cpp
 
         src/dataStore/Database.cpp
         src/stats/traffic/TrafficLooper.cpp

core/protorpc/.editorconfig

@@ -0,0 +1,29 @@
+# Copyright 2018 <chaishushan{AT}gmail.com>. All rights reserved.
+# Use of this source code is governed by a BSD-style
+# license that can be found in the LICENSE file.
+
+# http://editorconfig.org/
+
+root = true
+
+# Unix-style newlines with a newline ending every file
+[*]
+charset = utf-8
+end_of_line = lf
+trim_trailing_whitespace = true
+insert_final_newline = true
+
+[*]
+indent_style = tab
+indent_size = 4
+tab_width = 4
+
+[*.{go,proto}]
+charset = utf-8
+indent_style = tab
+tab_width = 4
+
+# Matches the exact files either package.json or .travis.yml
+[{package.json,.travis.yml}]
+indent_style = space
+indent_size = 2

core/protorpc/.travis.yml

@@ -0,0 +1,12 @@
+language: go
+
+go:
+  - 1.13
+  - 1.14
+  - 1.15
+  - 1.16
+  - tip
+
+before_script:
+  - go get github.com/golang/snappy
+  - go get github.com/golang/protobuf/proto

core/protorpc/Dockerfile

@@ -0,0 +1,24 @@
+# Copyright 2018 <chaishushan{AT}gmail.com>. All rights reserved.
+# Use of this source code is governed by a BSD-style
+# license that can be found in the LICENSE file.
+
+FROM golang:1.9.2-alpine3.6 as builder
+
+RUN apk add --no-cache git curl openssl
+
+RUN go get github.com/golang/protobuf/protoc-gen-go
+RUN go get github.com/chai2010/protorpc/protoc-gen-protorpc
+RUN go get github.com/chai2010/protorpc/protoc-gen-stdrpc
+
+# the protoc can't run on alpine,
+# we only need the protobuf's stdarnd library in the `/protoc/include`.
+RUN mkdir -p /protoc && cd /protoc \
+	&& wget https://github.com/google/protobuf/releases/download/v3.5.0/protoc-3.5.0-linux-x86_64.zip \
+	&& unzip protoc-3.5.0-linux-x86_64.zip
+
+FROM golang:1.9.2-alpine3.6
+
+RUN apk add --no-cache git protobuf make curl openssl
+
+COPY --from=builder /protoc/include /usr/local/include
+COPY --from=builder /go/bin /go/bin

core/protorpc/LICENSE

@@ -0,0 +1,27 @@
+Copyright (c) 2014, chai2010
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+
+* Redistributions of source code must retain the above copyright notice, this
+  list of conditions and the following disclaimer.
+
+* Redistributions in binary form must reproduce the above copyright notice,
+  this list of conditions and the following disclaimer in the documentation
+  and/or other materials provided with the distribution.
+
+* Neither the name of the {organization} nor the names of its
+  contributors may be used to endorse or promote products derived from
+  this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

core/protorpc/README.md

@@ -0,0 +1,173 @@
+- *Go语言QQ群: 102319854, 1055927514*
+- *凹语言(凹读音“Wa”)(The Wa Programming Language): https://github.com/wa-lang/wa*
+
+----
+
+# protorpc
+
+```
+██████╗ ██████╗  ██████╗ ████████╗ ██████╗       ██████╗ ██████╗  ██████╗
+██╔══██╗██╔══██╗██╔═══██╗╚══██╔══╝██╔═══██╗      ██╔══██╗██╔══██╗██╔════╝
+██████╔╝██████╔╝██║   ██║   ██║   ██║   ██║█████╗██████╔╝██████╔╝██║
+██╔═══╝ ██╔══██╗██║   ██║   ██║   ██║   ██║╚════╝██╔══██╗██╔═══╝ ██║
+██║     ██║  ██║╚██████╔╝   ██║   ╚██████╔╝      ██║  ██║██║     ╚██████╗
+╚═╝     ╚═╝  ╚═╝ ╚═════╝    ╚═╝    ╚═════╝       ╚═╝  ╚═╝╚═╝      ╚═════╝
+```
+
+[![Build Status](https://travis-ci.org/chai2010/protorpc.svg)](https://travis-ci.org/chai2010/protorpc)
+[![GoDoc](https://godoc.org/github.com/chai2010/protorpc?status.svg)](https://godoc.org/github.com/chai2010/protorpc)
+
+- C++ Version(Proto2): [https://github.com/chai2010/protorpc.cxx](https://github.com/chai2010/protorpc.cxx)
+- C++ Version(Proto3): [https://github.com/chai2010/protorpc3-cxx](https://github.com/chai2010/protorpc3-cxx)
+- Talks: [Go/C++语言Protobuf-RPC简介](http://go-talks.appspot.com/github.com/chai2010/talks/chai2010-protorpc-intro.slide)
+
+# Install
+
+Install `protorpc` package:
+
+1. `go install github.com/golang/protobuf/protoc-gen-go`
+1. `go get github.com/chai2010/protorpc`
+1. `go run hello.go`
+
+Install `protoc-gen-go` plugin:
+
+1. install `protoc` at first: http://github.com/google/protobuf/releases
+1. `go get github.com/golang/protobuf/protoc-gen-go`
+1. `go get github.com/chai2010/protorpc/protoc-gen-protorpc`
+1. `go generate github.com/chai2010/protorpc/examples/service.pb`
+1. `go test github.com/chai2010/protorpc/examples/service.pb`
+
+
+# Examples
+
+First, create [echo.proto](examples/service.pb/echo.proto):
+
+```Proto
+syntax = "proto3";
+
+package service;
+
+message EchoRequest {
+	string msg = 1;
+}
+
+message EchoResponse {
+	string msg = 1;
+}
+
+service EchoService {
+	rpc Echo (EchoRequest) returns (EchoResponse);
+	rpc EchoTwice (EchoRequest) returns (EchoResponse);
+}
+```
+
+Second, generate [echo.pb.go](examples/service.pb/echo.pb.go) and [echo.pb.protorpc.go](examples/service.pb/echo.pb.protorpc.go)
+from [echo.proto](examples/service.pb/echo.proto) (we can use `go generate` to invoke this command, see [proto.go](examples/service.pb/proto.go)).
+
+	protoc --go_out=. echo.proto
+	protoc --protorpc_out=. echo.proto
+
+
+Now, we can use the stub code like this:
+
+```Go
+package main
+
+import (
+	"fmt"
+	"log"
+
+	"github.com/chai2010/protorpc"
+	service "github.com/chai2010/protorpc/examples/service.pb"
+)
+
+type Echo int
+
+func (t *Echo) Echo(args *service.EchoRequest, reply *service.EchoResponse) error {
+	reply.Msg = args.Msg
+	return nil
+}
+
+func (t *Echo) EchoTwice(args *service.EchoRequest, reply *service.EchoResponse) error {
+	reply.Msg = args.Msg + args.Msg
+	return nil
+}
+
+func init() {
+	go service.ListenAndServeEchoService("tcp", `127.0.0.1:9527`, new(Echo))
+}
+
+func main() {
+	echoClient, err := service.DialEchoService("tcp", `127.0.0.1:9527`)
+	if err != nil {
+		log.Fatalf("service.DialEchoService: %v", err)
+	}
+	defer echoClient.Close()
+
+	args := &service.EchoRequest{Msg: "你好, 世界!"}
+	reply, err := echoClient.EchoTwice(args)
+	if err != nil {
+		log.Fatalf("echoClient.EchoTwice: %v", err)
+	}
+	fmt.Println(reply.Msg)
+
+	// or use normal client
+	client, err := protorpc.Dial("tcp", `127.0.0.1:9527`)
+	if err != nil {
+		log.Fatalf("protorpc.Dial: %v", err)
+	}
+	defer client.Close()
+
+	echoClient1 := &service.EchoServiceClient{client}
+	echoClient2 := &service.EchoServiceClient{client}
+	reply, err = echoClient1.EchoTwice(args)
+	reply, err = echoClient2.EchoTwice(args)
+	_, _ = reply, err
+
+	// Output:
+	// 你好, 世界!你好, 世界!
+}
+```
+
+[More examples](examples).
+
+# standard net/rpc
+
+First, create [echo.proto](examples/stdrpc.pb/echo.proto):
+
+```Proto
+syntax = "proto3";
+
+package service;
+
+message EchoRequest {
+	string msg = 1;
+}
+
+message EchoResponse {
+	string msg = 1;
+}
+
+service EchoService {
+	rpc Echo (EchoRequest) returns (EchoResponse);
+	rpc EchoTwice (EchoRequest) returns (EchoResponse);
+}
+```
+
+Second, generate [echo.pb.go](examples/stdrpc.pb/echo.pb.go) from [echo.proto](examples/stdrpc.pb/echo.proto) with `protoc-gen-stdrpc` plugin.
+
+	protoc --stdrpc_out=. echo.proto
+
+The stdrpc plugin generated code do not depends **protorpc** package, it use gob as the default rpc encoding.
+
+# Add prefix
+
+```
+$ ENV_PROTOC_GEN_PROTORPC_FLAG_PREFIX=abc protoc --protorpc_out=. x.proto
+```
+
+# BUGS
+
+Report bugs to <chaishushan@gmail.com>.
+
+Thanks!

core/protorpc/changelog.md

@@ -0,0 +1,23 @@
+# Changelogs
+
+## 1.1.3 - 2021.7.12
+
+- fix `readRequestHeader` maxSize, response error maybe very long
+
+## 1.1.2 - 2021.7.6
+
+- fix `UseSnappy` typo
+
+## 1.1.1 - 2021.7.4
+
+- protoc-gen-plugin: ignore format error
+
+## 1.1.0 - 2021.7.4
+
+- add `UseSappy` and `UseCrc32ChecksumIEEE`
+- add `ENV_PROTOC_GEN_PROTORPC_FLAG_PREFIX` env flag
+- fix frame size overflow panic (issue12)
+
+## 1.0.0 - go mod version (2018)
+
+- init version

core/protorpc/client.go

@@ -0,0 +1,135 @@
+// Copyright 2013 <chaishushan{AT}gmail.com>. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package protorpc
+
+import (
+	"fmt"
+	"io"
+	"net"
+	"net/rpc"
+	"sync"
+	"time"
+
+	wire "github.com/chai2010/protorpc/wire.pb"
+	"github.com/golang/protobuf/proto"
+)
+
+type clientCodec struct {
+	r io.Reader
+	w io.Writer
+	c io.Closer
+
+	// temporary work space
+	respHeader wire.ResponseHeader
+
+	// Protobuf-RPC responses include the request id but not the request method.
+	// Package rpc expects both.
+	// We save the request method in pending when sending a request
+	// and then look it up by request ID when filling out the rpc Response.
+	mutex   sync.Mutex        // protects pending
+	pending map[uint64]string // map request id to method name
+}
+
+// NewClientCodec returns a new rpc.ClientCodec using Protobuf-RPC on conn.
+func NewClientCodec(conn io.ReadWriteCloser) rpc.ClientCodec {
+	return &clientCodec{
+		r:       conn,
+		w:       conn,
+		c:       conn,
+		pending: make(map[uint64]string),
+	}
+}
+
+func (c *clientCodec) WriteRequest(r *rpc.Request, param interface{}) error {
+	c.mutex.Lock()
+	c.pending[r.Seq] = r.ServiceMethod
+	c.mutex.Unlock()
+
+	var request proto.Message
+	if param != nil {
+		var ok bool
+		if request, ok = param.(proto.Message); !ok {
+			return fmt.Errorf(
+				"protorpc.ClientCodec.WriteRequest: %T does not implement proto.Message",
+				param,
+			)
+		}
+	}
+	err := writeRequest(c.w, r.Seq, r.ServiceMethod, request)
+	if err != nil {
+		return err
+	}
+
+	return nil
+}
+
+func (c *clientCodec) ReadResponseHeader(r *rpc.Response) error {
+	header := wire.ResponseHeader{}
+	err := readResponseHeader(c.r, &header)
+	if err != nil {
+		return err
+	}
+
+	c.mutex.Lock()
+	r.Seq = *header.Id
+	r.Error = *header.Error
+	r.ServiceMethod = c.pending[r.Seq]
+	delete(c.pending, r.Seq)
+	c.mutex.Unlock()
+
+	c.respHeader = header
+	return nil
+}
+
+func (c *clientCodec) ReadResponseBody(x interface{}) error {
+	var response proto.Message
+	if x != nil {
+		var ok bool
+		response, ok = x.(proto.Message)
+		if !ok {
+			return fmt.Errorf(
+				"protorpc.ClientCodec.ReadResponseBody: %T does not implement proto.Message",
+				x,
+			)
+		}
+	}
+
+	err := readResponseBody(c.r, &c.respHeader, response)
+	if err != nil {
+		return nil
+	}
+
+	c.respHeader = wire.ResponseHeader{}
+	return nil
+}
+
+// Close closes the underlying connection.
+func (c *clientCodec) Close() error {
+	return c.c.Close()
+}
+
+// NewClient returns a new rpc.Client to handle requests to the
+// set of services at the other end of the connection.
+func NewClient(conn io.ReadWriteCloser) *rpc.Client {
+	return rpc.NewClientWithCodec(NewClientCodec(conn))
+}
+
+// Dial connects to a Protobuf-RPC server at the specified network address.
+func Dial(network, address string) (*rpc.Client, error) {
+	conn, err := net.Dial(network, address)
+	if err != nil {
+		return nil, err
+	}
+	return NewClient(conn), err
+}
+
+// DialTimeout connects to a Protobuf-RPC server at the specified network address.
+func DialTimeout(network, address string, timeout time.Duration) (*rpc.Client, error) {
+	conn, err := net.DialTimeout(network, address, timeout)
+	if err != nil {
+		return nil, err
+	}
+	return NewClient(conn), err
+}

core/protorpc/conn.go

@@ -0,0 +1,117 @@
+// Copyright 2013 <chaishushan{AT}gmail.com>. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package protorpc
+
+import (
+	"encoding/binary"
+	"errors"
+	"fmt"
+	"io"
+	"net"
+)
+
+func sendFrame(w io.Writer, data []byte) (err error) {
+	// Allocate enough space for the biggest uvarint
+	var size [binary.MaxVarintLen64]byte
+
+	if data == nil || len(data) == 0 {
+		n := binary.PutUvarint(size[:], uint64(0))
+		if err = write(w, size[:n], false); err != nil {
+			return
+		}
+		return
+	}
+
+	// Write the size and data
+	n := binary.PutUvarint(size[:], uint64(len(data)))
+	if err = write(w, size[:n], false); err != nil {
+		return
+	}
+	if err = write(w, data, false); err != nil {
+		return
+	}
+	return
+}
+
+func recvFrame(r io.Reader, maxSize int) (data []byte, err error) {
+	size, err := readUvarint(r)
+	if err != nil {
+		return nil, err
+	}
+	if maxSize > 0 {
+		if int(size) > maxSize {
+			return nil, fmt.Errorf("protorpc: varint overflows maxSize(%d)", maxSize)
+		}
+	}
+	if size != 0 {
+		data = make([]byte, size)
+		if err = read(r, data); err != nil {
+			return nil, err
+		}
+	}
+	return data, nil
+}
+
+// ReadUvarint reads an encoded unsigned integer from r and returns it as a uint64.
+func readUvarint(r io.Reader) (uint64, error) {
+	var x uint64
+	var s uint
+	for i := 0; ; i++ {
+		var b byte
+		b, err := readByte(r)
+		if err != nil {
+			return 0, err
+		}
+		if b < 0x80 {
+			if i > 9 || i == 9 && b > 1 {
+				return x, errors.New("protorpc: varint overflows a 64-bit integer")
+			}
+			return x | uint64(b)<<s, nil
+		}
+		x |= uint64(b&0x7f) << s
+		s += 7
+	}
+}
+
+func write(w io.Writer, data []byte, onePacket bool) error {
+	if onePacket {
+		if _, err := w.Write(data); err != nil {
+			return err
+		}
+		return nil
+	}
+	for index := 0; index < len(data); {
+		n, err := w.Write(data[index:])
+		if err != nil {
+			if nerr, ok := err.(net.Error); !ok || !nerr.Temporary() {
+				return err
+			}
+		}
+		index += n
+	}
+	return nil
+}
+
+func read(r io.Reader, data []byte) error {
+	for index := 0; index < len(data); {
+		n, err := r.Read(data[index:])
+		if err != nil {
+			if nerr, ok := err.(net.Error); !ok || !nerr.Temporary() {
+				return err
+			}
+		}
+		index += n
+	}
+	return nil
+}
+
+func readByte(r io.Reader) (c byte, err error) {
+	data := make([]byte, 1)
+	if err = read(r, data); err != nil {
+		return 0, err
+	}
+	c = data[0]
+	return
+}

core/protorpc/doc.go

@@ -0,0 +1,111 @@
+// Copyright 2013 <chaishushan{AT}gmail.com>. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+/*
+Package protorpc implements a Protobuf-RPC ClientCodec and ServerCodec
+for the rpc package.
+
+To install it, you must first have Go (version 1) installed
+(see http://golang.org/doc/install). Next, install the standard
+protocol buffer implementation from http://github.com/google/protobuf/;
+you must be running version 2.3 or higher.
+
+Finally run
+
+	go get github.com/chai2010/protorpc
+	go get github.com/chai2010/protorpc/protoc-gen-protorpc
+
+to install the support library and protocol compiler.
+
+Here is a simple proto file("arith.pb/arith.proto"):
+
+	package arith;
+
+	message ArithRequest {
+		optional int32 a = 1;
+		optional int32 b = 2;
+	}
+
+	message ArithResponse {
+		optional int32 val = 1;
+		optional int32 quo = 2;
+		optional int32 rem = 3;
+	}
+
+	service ArithService {
+		rpc multiply (ArithRequest) returns (ArithResponse);
+		rpc divide (ArithRequest) returns (ArithResponse);
+	}
+
+Then use "protoc-gen-go" to generate "arith.pb.go" file:
+
+	cd arith.pb && protoc --go_out=. arith.proto
+
+
+Use "protoc-gen-protorpc" to generate "arith.pb.protorpc.go" file (include stub code):
+
+	cd arith.pb && protoc --protorpc_out=. arith.proto
+
+The server calls (for TCP service):
+
+	package server
+
+	import (
+		"errors"
+
+		"github.com/golang/protobuf/proto"
+
+		"./arith.pb"
+	)
+
+	type Arith int
+
+	func (t *Arith) Multiply(args *arith.ArithRequest, reply *arith.ArithResponse) error {
+		reply.Val = proto.Int32(args.GetA() * args.GetB())
+		return nil
+	}
+
+	func (t *Arith) Divide(args *arith.ArithRequest, reply *arith.ArithResponse) error {
+		if args.GetB() == 0 {
+			return errors.New("divide by zero")
+		}
+		reply.Quo = proto.Int32(args.GetA() / args.GetB())
+		reply.Rem = proto.Int32(args.GetA() % args.GetB())
+		return nil
+	}
+
+	func main() {
+		arith.ListenAndServeArithService("tcp", ":1984", new(Arith))
+	}
+
+At this point, clients can see a service "Arith" with methods "ArithService.Multiply" and
+"ArithService.Divide". To invoke one, a client first dials the server:
+
+	stub, err := arith.DialArithService("tcp", "127.0.0.1:1984")
+	if err != nil {
+		log.Fatal(`arith.DialArithService("tcp", "127.0.0.1:1984"):`, err)
+	}
+	defer stub.Close()
+
+Then it can make a remote call with stub:
+
+	var args ArithRequest
+
+	args.A = proto.Int32(7)
+	args.B = proto.Int32(8)
+	reply, err := stub.Multiply(&args, &reply)
+	if err != nil {
+		log.Fatal("arith error:", err)
+	}
+	fmt.Printf("Arith: %d*%d=%d", args.GetA(), args.GetB(), reply.GetVal())
+
+More example:
+
+	go test github.com/chai2010/protorpc/internal/service.pb
+
+Report bugs to <chaishushan@gmail.com>.
+
+Thanks!
+*/
+package protorpc // import "github.com/chai2010/protorpc"

core/protorpc/examples/message.pb/arith.pb.go

@@ -0,0 +1,90 @@
+// Code generated by protoc-gen-go. DO NOT EDIT.
+// source: arith.proto
+
+/*
+Package message is a generated protocol buffer package.
+
+It is generated from these files:
+	arith.proto
+	echo.proto
+
+It has these top-level messages:
+	ArithRequest
+	ArithResponse
+	EchoRequest
+	EchoResponse
+*/
+package message
+
+import proto "github.com/golang/protobuf/proto"
+import fmt "fmt"
+import math "math"
+
+// Reference imports to suppress errors if they are not otherwise used.
+var _ = proto.Marshal
+var _ = fmt.Errorf
+var _ = math.Inf
+
+// This is a compile-time assertion to ensure that this generated file
+// is compatible with the proto package it is being compiled against.
+// A compilation error at this line likely means your copy of the
+// proto package needs to be updated.
+const _ = proto.ProtoPackageIsVersion2 // please upgrade the proto package
+
+type ArithRequest struct {
+	A int32 `protobuf:"varint,1,opt,name=a" json:"a,omitempty"`
+	B int32 `protobuf:"varint,2,opt,name=b" json:"b,omitempty"`
+}
+
+func (m *ArithRequest) Reset()                    { *m = ArithRequest{} }
+func (m *ArithRequest) String() string            { return proto.CompactTextString(m) }
+func (*ArithRequest) ProtoMessage()               {}
+func (*ArithRequest) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{0} }
+
+func (m *ArithRequest) GetA() int32 {
+	if m != nil {
+		return m.A
+	}
+	return 0
+}
+
+func (m *ArithRequest) GetB() int32 {
+	if m != nil {
+		return m.B
+	}
+	return 0
+}
+
+type ArithResponse struct {
+	C int32 `protobuf:"varint,1,opt,name=c" json:"c,omitempty"`
+}
+
+func (m *ArithResponse) Reset()                    { *m = ArithResponse{} }
+func (m *ArithResponse) String() string            { return proto.CompactTextString(m) }
+func (*ArithResponse) ProtoMessage()               {}
+func (*ArithResponse) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{1} }
+
+func (m *ArithResponse) GetC() int32 {
+	if m != nil {
+		return m.C
+	}
+	return 0
+}
+
+func init() {
+	proto.RegisterType((*ArithRequest)(nil), "message.ArithRequest")
+	proto.RegisterType((*ArithResponse)(nil), "message.ArithResponse")
+}
+
+func init() { proto.RegisterFile("arith.proto", fileDescriptor0) }
+
+var fileDescriptor0 = []byte{
+	// 104 bytes of a gzipped FileDescriptorProto
+	0x1f, 0x8b, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0xff, 0xe2, 0xe2, 0x4e, 0x2c, 0xca, 0x2c,
+	0xc9, 0xd0, 0x2b, 0x28, 0xca, 0x2f, 0xc9, 0x17, 0x62, 0xcf, 0x4d, 0x2d, 0x2e, 0x4e, 0x4c, 0x4f,
+	0x55, 0xd2, 0xe2, 0xe2, 0x71, 0x04, 0x89, 0x07, 0xa5, 0x16, 0x96, 0xa6, 0x16, 0x97, 0x08, 0xf1,
+	0x70, 0x31, 0x26, 0x4a, 0x30, 0x2a, 0x30, 0x6a, 0xb0, 0x06, 0x31, 0x26, 0x82, 0x78, 0x49, 0x12,
+	0x4c, 0x10, 0x5e, 0x92, 0x92, 0x2c, 0x17, 0x2f, 0x54, 0x6d, 0x71, 0x41, 0x7e, 0x5e, 0x71, 0x2a,
+	0x48, 0x3a, 0x19, 0xa6, 0x38, 0x39, 0x89, 0x0d, 0x6c, 0xb4, 0x31, 0x20, 0x00, 0x00, 0xff, 0xff,
+	0x61, 0x27, 0x57, 0x32, 0x69, 0x00, 0x00, 0x00,
+}

core/protorpc/examples/message.pb/arith.proto

@@ -0,0 +1,16 @@
+// Copyright 2013 <chaishushan{AT}gmail.com>. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+syntax = "proto3";
+
+package message;
+
+message ArithRequest {
+	int32 a = 1;
+	int32 b = 2;
+}
+
+message ArithResponse {
+	int32 c = 1;
+}

core/protorpc/examples/message.pb/echo.pb.go

@@ -0,0 +1,62 @@
+// Code generated by protoc-gen-go. DO NOT EDIT.
+// source: echo.proto
+
+package message
+
+import proto "github.com/golang/protobuf/proto"
+import fmt "fmt"
+import math "math"
+
+// Reference imports to suppress errors if they are not otherwise used.
+var _ = proto.Marshal
+var _ = fmt.Errorf
+var _ = math.Inf
+
+type EchoRequest struct {
+	Msg string `protobuf:"bytes,1,opt,name=msg" json:"msg,omitempty"`
+}
+
+func (m *EchoRequest) Reset()                    { *m = EchoRequest{} }
+func (m *EchoRequest) String() string            { return proto.CompactTextString(m) }
+func (*EchoRequest) ProtoMessage()               {}
+func (*EchoRequest) Descriptor() ([]byte, []int) { return fileDescriptor1, []int{0} }
+
+func (m *EchoRequest) GetMsg() string {
+	if m != nil {
+		return m.Msg
+	}
+	return ""
+}
+
+type EchoResponse struct {
+	Msg string `protobuf:"bytes,1,opt,name=msg" json:"msg,omitempty"`
+}
+
+func (m *EchoResponse) Reset()                    { *m = EchoResponse{} }
+func (m *EchoResponse) String() string            { return proto.CompactTextString(m) }
+func (*EchoResponse) ProtoMessage()               {}
+func (*EchoResponse) Descriptor() ([]byte, []int) { return fileDescriptor1, []int{1} }
+
+func (m *EchoResponse) GetMsg() string {
+	if m != nil {
+		return m.Msg
+	}
+	return ""
+}
+
+func init() {
+	proto.RegisterType((*EchoRequest)(nil), "message.EchoRequest")
+	proto.RegisterType((*EchoResponse)(nil), "message.EchoResponse")
+}
+
+func init() { proto.RegisterFile("echo.proto", fileDescriptor1) }
+
+var fileDescriptor1 = []byte{
+	// 95 bytes of a gzipped FileDescriptorProto
+	0x1f, 0x8b, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0xff, 0xe2, 0xe2, 0x4a, 0x4d, 0xce, 0xc8,
+	0xd7, 0x2b, 0x28, 0xca, 0x2f, 0xc9, 0x17, 0x62, 0xcf, 0x4d, 0x2d, 0x2e, 0x4e, 0x4c, 0x4f, 0x55,
+	0x92, 0xe7, 0xe2, 0x76, 0x4d, 0xce, 0xc8, 0x0f, 0x4a, 0x2d, 0x2c, 0x4d, 0x2d, 0x2e, 0x11, 0x12,
+	0xe0, 0x62, 0xce, 0x2d, 0x4e, 0x97, 0x60, 0x54, 0x60, 0xd4, 0xe0, 0x0c, 0x02, 0x31, 0x95, 0x14,
+	0xb8, 0x78, 0x20, 0x0a, 0x8a, 0x0b, 0xf2, 0xf3, 0x8a, 0x53, 0x31, 0x55, 0x24, 0xb1, 0x81, 0x8d,
+	0x34, 0x06, 0x04, 0x00, 0x00, 0xff, 0xff, 0xcb, 0xea, 0xe4, 0xa6, 0x60, 0x00, 0x00, 0x00,
+}

core/protorpc/examples/message.pb/echo.proto

@@ -0,0 +1,15 @@
+// Copyright 2013 <chaishushan{AT}gmail.com>. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+syntax = "proto3";
+
+package message;
+
+message EchoRequest {
+	string msg = 1;
+}
+
+message EchoResponse {
+	string msg = 1;
+}

core/protorpc/examples/message.pb/proto.go

@@ -0,0 +1,7 @@
+// Copyright 2014 <chaishushan{AT}gmail.com>. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+//go:generate protoc --go_out=. arith.proto echo.proto
+
+package message

core/protorpc/examples/proto3.pb/Makefile

@@ -0,0 +1,14 @@
+# Copyright 2013 <chaishushan{AT}gmail.com>. All rights reserved.
+# Use of this source code is governed by a BSD-style
+# license that can be found in the LICENSE file.
+
+PROTO_FILES=$(sort $(wildcard ./*.proto))
+
+default: $(PROTO_FILES) Makefile
+	go install github.com/golang/protobuf/protoc-gen-go
+	go install github.com/chai2010/protorpc/protoc-gen-protorpc
+	protoc --go_out=. ${PROTO_FILES}
+	protoc --protorpc_out=. ${PROTO_FILES}
+	go test
+
+clean:

core/protorpc/examples/proto3.pb/proto.go

@@ -0,0 +1,8 @@
+// Copyright 2014 <chaishushan{AT}gmail.com>. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+//go:generate protoc --go_out=. proto3.proto
+//go:generate protoc --protorpc_out=. proto3.proto
+
+package proto3_proto

core/protorpc/examples/proto3.pb/proto3.pb.go

@@ -0,0 +1,220 @@
+// Code generated by protoc-gen-go. DO NOT EDIT.
+// source: proto3.proto
+
+/*
+Package proto3_proto is a generated protocol buffer package.
+
+It is generated from these files:
+	proto3.proto
+
+It has these top-level messages:
+	Message
+	Nested
+	MessageWithMap
+*/
+package proto3_proto
+
+import proto "github.com/golang/protobuf/proto"
+import fmt "fmt"
+import math "math"
+
+// Reference imports to suppress errors if they are not otherwise used.
+var _ = proto.Marshal
+var _ = fmt.Errorf
+var _ = math.Inf
+
+// This is a compile-time assertion to ensure that this generated file
+// is compatible with the proto package it is being compiled against.
+// A compilation error at this line likely means your copy of the
+// proto package needs to be updated.
+const _ = proto.ProtoPackageIsVersion2 // please upgrade the proto package
+
+type Message_Humour int32
+
+const (
+	Message_UNKNOWN     Message_Humour = 0
+	Message_PUNS        Message_Humour = 1
+	Message_SLAPSTICK   Message_Humour = 2
+	Message_BILL_BAILEY Message_Humour = 3
+)
+
+var Message_Humour_name = map[int32]string{
+	0: "UNKNOWN",
+	1: "PUNS",
+	2: "SLAPSTICK",
+	3: "BILL_BAILEY",
+}
+var Message_Humour_value = map[string]int32{
+	"UNKNOWN":     0,
+	"PUNS":        1,
+	"SLAPSTICK":   2,
+	"BILL_BAILEY": 3,
+}
+
+func (x Message_Humour) String() string {
+	return proto.EnumName(Message_Humour_name, int32(x))
+}
+func (Message_Humour) EnumDescriptor() ([]byte, []int) { return fileDescriptor0, []int{0, 0} }
+
+type Message struct {
+	Name         string             `protobuf:"bytes,1,opt,name=name" json:"name,omitempty"`
+	Hilarity     Message_Humour     `protobuf:"varint,2,opt,name=hilarity,enum=proto3_proto.Message_Humour" json:"hilarity,omitempty"`
+	HeightInCm   uint32             `protobuf:"varint,3,opt,name=height_in_cm,json=heightInCm" json:"height_in_cm,omitempty"`
+	Data         []byte             `protobuf:"bytes,4,opt,name=data,proto3" json:"data,omitempty"`
+	ResultCount  int64              `protobuf:"varint,7,opt,name=result_count,json=resultCount" json:"result_count,omitempty"`
+	TrueScotsman bool               `protobuf:"varint,8,opt,name=true_scotsman,json=trueScotsman" json:"true_scotsman,omitempty"`
+	Score        float32            `protobuf:"fixed32,9,opt,name=score" json:"score,omitempty"`
+	Key          []uint64           `protobuf:"varint,5,rep,packed,name=key" json:"key,omitempty"`
+	Nested       *Nested            `protobuf:"bytes,6,opt,name=nested" json:"nested,omitempty"`
+	Terrain      map[string]*Nested `protobuf:"bytes,10,rep,name=terrain" json:"terrain,omitempty" protobuf_key:"bytes,1,opt,name=key" protobuf_val:"bytes,2,opt,name=value"`
+}
+
+func (m *Message) Reset()                    { *m = Message{} }
+func (m *Message) String() string            { return proto.CompactTextString(m) }
+func (*Message) ProtoMessage()               {}
+func (*Message) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{0} }
+
+func (m *Message) GetName() string {
+	if m != nil {
+		return m.Name
+	}
+	return ""
+}
+
+func (m *Message) GetHilarity() Message_Humour {
+	if m != nil {
+		return m.Hilarity
+	}
+	return Message_UNKNOWN
+}
+
+func (m *Message) GetHeightInCm() uint32 {
+	if m != nil {
+		return m.HeightInCm
+	}
+	return 0
+}
+
+func (m *Message) GetData() []byte {
+	if m != nil {
+		return m.Data
+	}
+	return nil
+}
+
+func (m *Message) GetResultCount() int64 {
+	if m != nil {
+		return m.ResultCount
+	}
+	return 0
+}
+
+func (m *Message) GetTrueScotsman() bool {
+	if m != nil {
+		return m.TrueScotsman
+	}
+	return false
+}
+
+func (m *Message) GetScore() float32 {
+	if m != nil {
+		return m.Score
+	}
+	return 0
+}
+
+func (m *Message) GetKey() []uint64 {
+	if m != nil {
+		return m.Key
+	}
+	return nil
+}
+
+func (m *Message) GetNested() *Nested {
+	if m != nil {
+		return m.Nested
+	}
+	return nil
+}
+
+func (m *Message) GetTerrain() map[string]*Nested {
+	if m != nil {
+		return m.Terrain
+	}
+	return nil
+}
+
+type Nested struct {
+	Bunny string `protobuf:"bytes,1,opt,name=bunny" json:"bunny,omitempty"`
+}
+
+func (m *Nested) Reset()                    { *m = Nested{} }
+func (m *Nested) String() string            { return proto.CompactTextString(m) }
+func (*Nested) ProtoMessage()               {}
+func (*Nested) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{1} }
+
+func (m *Nested) GetBunny() string {
+	if m != nil {
+		return m.Bunny
+	}
+	return ""
+}
+
+type MessageWithMap struct {
+	ByteMapping map[bool][]byte `protobuf:"bytes,1,rep,name=byte_mapping,json=byteMapping" json:"byte_mapping,omitempty" protobuf_key:"varint,1,opt,name=key" protobuf_val:"bytes,2,opt,name=value,proto3"`
+}
+
+func (m *MessageWithMap) Reset()                    { *m = MessageWithMap{} }
+func (m *MessageWithMap) String() string            { return proto.CompactTextString(m) }
+func (*MessageWithMap) ProtoMessage()               {}
+func (*MessageWithMap) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{2} }
+
+func (m *MessageWithMap) GetByteMapping() map[bool][]byte {
+	if m != nil {
+		return m.ByteMapping
+	}
+	return nil
+}
+
+func init() {
+	proto.RegisterType((*Message)(nil), "proto3_proto.Message")
+	proto.RegisterType((*Nested)(nil), "proto3_proto.Nested")
+	proto.RegisterType((*MessageWithMap)(nil), "proto3_proto.MessageWithMap")
+	proto.RegisterEnum("proto3_proto.Message_Humour", Message_Humour_name, Message_Humour_value)
+}
+
+func init() { proto.RegisterFile("proto3.proto", fileDescriptor0) }
+
+var fileDescriptor0 = []byte{
+	// 473 bytes of a gzipped FileDescriptorProto
+	0x1f, 0x8b, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0xff, 0x74, 0x90, 0x5f, 0x8b, 0xd3, 0x40,
+	0x14, 0xc5, 0x9d, 0xa6, 0xdb, 0x3f, 0x37, 0xe9, 0x1a, 0x86, 0x0a, 0x43, 0x11, 0x19, 0xeb, 0xcb,
+	0x20, 0xda, 0x87, 0xea, 0xc3, 0x22, 0xa2, 0x6c, 0x4b, 0xc1, 0xb2, 0x6d, 0x2d, 0xd3, 0x5d, 0x16,
+	0x9f, 0xc2, 0x34, 0x3b, 0xb4, 0xc1, 0x66, 0x52, 0x26, 0x93, 0x85, 0x7c, 0x1d, 0x3f, 0xa7, 0x0f,
+	0x92, 0x4c, 0xaa, 0x51, 0xea, 0xd3, 0xdc, 0x7b, 0xe6, 0xdc, 0x99, 0x73, 0x7f, 0xe0, 0x1d, 0x75,
+	0x62, 0x92, 0x77, 0xa3, 0xf2, 0xc0, 0x55, 0x17, 0x94, 0xc7, 0xf0, 0xa7, 0x03, 0xed, 0xa5, 0x4c,
+	0x53, 0xb1, 0x93, 0x18, 0x43, 0x53, 0x89, 0x58, 0x12, 0x44, 0x11, 0xeb, 0xf2, 0xb2, 0xc6, 0x57,
+	0xd0, 0xd9, 0x47, 0x07, 0xa1, 0x23, 0x93, 0x93, 0x06, 0x45, 0xec, 0x72, 0xfc, 0x7c, 0x54, 0x7f,
+	0x60, 0x54, 0x0d, 0x8f, 0xbe, 0x64, 0x71, 0x92, 0x69, 0xfe, 0xdb, 0x8d, 0x29, 0x78, 0x7b, 0x19,
+	0xed, 0xf6, 0x26, 0x88, 0x54, 0x10, 0xc6, 0xc4, 0xa1, 0x88, 0xf5, 0x38, 0x58, 0x6d, 0xae, 0xa6,
+	0x71, 0xf1, 0xdf, 0x83, 0x30, 0x82, 0x34, 0x29, 0x62, 0x1e, 0x2f, 0x6b, 0xfc, 0x12, 0x3c, 0x2d,
+	0xd3, 0xec, 0x60, 0x82, 0x30, 0xc9, 0x94, 0x21, 0x6d, 0x8a, 0x98, 0xc3, 0x5d, 0xab, 0x4d, 0x0b,
+	0x09, 0xbf, 0x82, 0x9e, 0xd1, 0x99, 0x0c, 0xd2, 0x30, 0x31, 0x69, 0x2c, 0x14, 0xe9, 0x50, 0xc4,
+	0x3a, 0xdc, 0x2b, 0xc4, 0x4d, 0xa5, 0xe1, 0x3e, 0x5c, 0xa4, 0x61, 0xa2, 0x25, 0xe9, 0x52, 0xc4,
+	0x1a, 0xdc, 0x36, 0xd8, 0x07, 0xe7, 0xbb, 0xcc, 0xc9, 0x05, 0x75, 0x58, 0x93, 0x17, 0x25, 0x7e,
+	0x03, 0x2d, 0x25, 0x53, 0x23, 0x1f, 0x48, 0x8b, 0x22, 0xe6, 0x8e, 0xfb, 0x7f, 0x6f, 0xb7, 0x2a,
+	0xef, 0x78, 0xe5, 0xc1, 0x1f, 0xa1, 0x6d, 0xa4, 0xd6, 0x22, 0x52, 0x04, 0xa8, 0xc3, 0xdc, 0xf1,
+	0xf0, 0x3c, 0x8c, 0x5b, 0x6b, 0x9a, 0x29, 0xa3, 0x73, 0x7e, 0x1a, 0x19, 0xac, 0xc1, 0xab, 0x5f,
+	0x9c, 0xd2, 0x58, 0xdc, 0x65, 0x9a, 0xd7, 0x70, 0xf1, 0x28, 0x0e, 0x99, 0x2c, 0x51, 0xff, 0x2f,
+	0x8c, 0xb5, 0x7c, 0x68, 0x5c, 0xa1, 0xe1, 0x67, 0x68, 0x59, 0xee, 0xd8, 0x85, 0xf6, 0xdd, 0xea,
+	0x66, 0xf5, 0xf5, 0x7e, 0xe5, 0x3f, 0xc1, 0x1d, 0x68, 0xae, 0xef, 0x56, 0x1b, 0x1f, 0xe1, 0x1e,
+	0x74, 0x37, 0x8b, 0xeb, 0xf5, 0xe6, 0x76, 0x3e, 0xbd, 0xf1, 0x1b, 0xf8, 0x29, 0xb8, 0x93, 0xf9,
+	0x62, 0x11, 0x4c, 0xae, 0xe7, 0x8b, 0xd9, 0x37, 0xdf, 0x19, 0xbe, 0x80, 0x96, 0x7d, 0xb5, 0x00,
+	0xb6, 0xcd, 0x94, 0x3a, 0xc5, 0xb1, 0xcd, 0xf0, 0x07, 0x82, 0xcb, 0x6a, 0xa9, 0xfb, 0xc8, 0xec,
+	0x97, 0xe2, 0x88, 0xd7, 0xe0, 0x6d, 0x73, 0x23, 0x83, 0x58, 0x1c, 0x8f, 0x91, 0xda, 0x11, 0x54,
+	0x82, 0x78, 0x7b, 0x16, 0x44, 0x35, 0x33, 0x9a, 0xe4, 0x46, 0x2e, 0xad, 0xdf, 0x32, 0x71, 0xb7,
+	0x7f, 0x94, 0xc1, 0x27, 0xf0, 0xff, 0x35, 0xd4, 0xd9, 0x74, 0x2c, 0x9b, 0x7e, 0x9d, 0x8d, 0x57,
+	0xa3, 0x30, 0x9e, 0x82, 0x3b, 0x0b, 0xf7, 0xc9, 0x46, 0xea, 0xc7, 0x28, 0x94, 0xf8, 0x3d, 0x34,
+	0x8b, 0x16, 0x3f, 0x3b, 0x1b, 0x69, 0x70, 0x5e, 0xde, 0xb6, 0xac, 0xfa, 0x2b, 0x00, 0x00, 0xff,
+	0xff, 0xff, 0xc1, 0x87, 0xd6, 0x2d, 0x03, 0x00, 0x00,
+}

core/protorpc/examples/proto3.pb/proto3.pb.protorpc.go

@@ -0,0 +1,171 @@
+// Code generated by protoc-gen-protorpc. DO NOT EDIT.
+//
+// plugin: https://github.com/chai2010/protorpc/tree/master/protoc-gen-protorpc
+// plugin: https://github.com/chai2010/protorpc/tree/master/protoc-plugin-common
+//
+// source: proto3.proto
+
+package proto3_proto
+
+import (
+	"fmt"
+	"io"
+	"log"
+	"net"
+	"net/rpc"
+	"time"
+
+	"github.com/chai2010/protorpc"
+	"github.com/golang/protobuf/proto"
+)
+
+var (
+	_ = fmt.Sprint
+	_ = io.Reader(nil)
+	_ = log.Print
+	_ = net.Addr(nil)
+	_ = rpc.Call{}
+	_ = time.Second
+
+	_ = proto.String
+	_ = protorpc.Dial
+)
+
+type EchoService interface {
+	Echo(in *Message, out *Message) error
+}
+
+// AcceptEchoServiceClient accepts connections on the listener and serves requests
+// for each incoming connection.  Accept blocks; the caller typically
+// invokes it in a go statement.
+func AcceptEchoServiceClient(lis net.Listener, x EchoService) {
+	srv := rpc.NewServer()
+	if err := srv.RegisterName("EchoService", x); err != nil {
+		log.Fatal(err)
+	}
+
+	for {
+		conn, err := lis.Accept()
+		if err != nil {
+			log.Fatalf("lis.Accept(): %v\n", err)
+		}
+		go srv.ServeCodec(protorpc.NewServerCodec(conn))
+	}
+}
+
+// RegisterEchoService publish the given EchoService implementation on the server.
+func RegisterEchoService(srv *rpc.Server, x EchoService) error {
+	if err := srv.RegisterName("EchoService", x); err != nil {
+		return err
+	}
+	return nil
+}
+
+// NewEchoServiceServer returns a new EchoService Server.
+func NewEchoServiceServer(x EchoService) *rpc.Server {
+	srv := rpc.NewServer()
+	if err := srv.RegisterName("EchoService", x); err != nil {
+		log.Fatal(err)
+	}
+	return srv
+}
+
+// ListenAndServeEchoService listen announces on the local network address laddr
+// and serves the given EchoService implementation.
+func ListenAndServeEchoService(network, addr string, x EchoService) error {
+	lis, err := net.Listen(network, addr)
+	if err != nil {
+		return err
+	}
+	defer lis.Close()
+
+	srv := rpc.NewServer()
+	if err := srv.RegisterName("EchoService", x); err != nil {
+		return err
+	}
+
+	for {
+		conn, err := lis.Accept()
+		if err != nil {
+			log.Fatalf("lis.Accept(): %v\n", err)
+		}
+		go srv.ServeCodec(protorpc.NewServerCodec(conn))
+	}
+}
+
+// ServeEchoService serves the given EchoService implementation.
+func ServeEchoService(conn io.ReadWriteCloser, x EchoService) {
+	srv := rpc.NewServer()
+	if err := srv.RegisterName("EchoService", x); err != nil {
+		log.Fatal(err)
+	}
+	srv.ServeCodec(protorpc.NewServerCodec(conn))
+}
+
+type EchoServiceClient struct {
+	*rpc.Client
+}
+
+// NewEchoServiceClient returns a EchoService stub to handle
+// requests to the set of EchoService at the other end of the connection.
+func NewEchoServiceClient(conn io.ReadWriteCloser) *EchoServiceClient {
+	c := rpc.NewClientWithCodec(protorpc.NewClientCodec(conn))
+	return &EchoServiceClient{c}
+}
+
+func (c *EchoServiceClient) Echo(in *Message) (out *Message, err error) {
+	if in == nil {
+		in = new(Message)
+	}
+
+	type Validator interface {
+		Validate() error
+	}
+	if x, ok := proto.Message(in).(Validator); ok {
+		if err := x.Validate(); err != nil {
+			return nil, err
+		}
+	}
+
+	out = new(Message)
+	if err = c.Call("EchoService.Echo", in, out); err != nil {
+		return nil, err
+	}
+
+	if x, ok := proto.Message(out).(Validator); ok {
+		if err := x.Validate(); err != nil {
+			return out, err
+		}
+	}
+
+	return out, nil
+}
+
+func (c *EchoServiceClient) AsyncEcho(in *Message, out *Message, done chan *rpc.Call) *rpc.Call {
+	if in == nil {
+		in = new(Message)
+	}
+	return c.Go(
+		"EchoService.Echo",
+		in, out,
+		done,
+	)
+}
+
+// DialEchoService connects to an EchoService at the specified network address.
+func DialEchoService(network, addr string) (*EchoServiceClient, error) {
+	c, err := protorpc.Dial(network, addr)
+	if err != nil {
+		return nil, err
+	}
+	return &EchoServiceClient{c}, nil
+}
+
+// DialEchoServiceTimeout connects to an EchoService at the specified network address.
+func DialEchoServiceTimeout(network, addr string, timeout time.Duration) (*EchoServiceClient, error) {
+	c, err := protorpc.DialTimeout(network, addr, timeout)
+	if err != nil {
+		return nil, err
+	}
+	return &EchoServiceClient{c}, nil
+}

core/protorpc/examples/proto3.pb/proto3.proto

@@ -0,0 +1,41 @@
+// Copyright 2015 <chaishushan{AT}gmail.com>. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+syntax = "proto3";
+
+package proto3_proto;
+
+message Message {
+	enum Humour {
+		UNKNOWN = 0;
+		PUNS = 1;
+		SLAPSTICK = 2;
+		BILL_BAILEY = 3;
+	}
+
+	string name = 1;
+	Humour hilarity = 2;
+	uint32 height_in_cm = 3;
+	bytes data = 4;
+	int64 result_count = 7;
+	bool true_scotsman = 8;
+	float score = 9;
+
+	repeated uint64 key = 5;
+	Nested nested = 6;
+
+	map<string, Nested> terrain = 10;
+}
+
+message Nested {
+	string bunny = 1;
+}
+
+message MessageWithMap {
+	map<bool, bytes> byte_mapping = 1;
+}
+
+service EchoService {
+	rpc Echo(Message) returns (Message);
+}

core/protorpc/examples/proto3.pb/proto3_proto_test.go

@@ -0,0 +1,72 @@
+// Copyright 2015 <chaishushan{AT}gmail.com>. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package proto3_proto
+
+import (
+	"bytes"
+	"encoding/gob"
+	"log"
+	"os"
+	"reflect"
+	"testing"
+	"time"
+)
+
+type tEchoService struct {
+	private int
+}
+
+func (p *tEchoService) Echo(in *Message, out *Message) error {
+	var buf bytes.Buffer
+	if err := gob.NewEncoder(&buf).Encode(in); err != nil {
+		return err
+	}
+	if err := gob.NewDecoder(bytes.NewBuffer(buf.Bytes())).Decode(out); err != nil {
+		return err
+	}
+	return nil
+}
+
+func TestMain(m *testing.M) {
+	go func() {
+		if err := ListenAndServeEchoService("tcp", "127.0.0.1:3000", new(tEchoService)); err != nil {
+			log.Fatal(err)
+		}
+	}()
+	time.Sleep(time.Second * 3) // wait for start the server
+	os.Exit(m.Run())
+}
+
+func TestEchoService(t *testing.T) {
+	c, err := DialEchoService("tcp", "127.0.0.1:3000")
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer c.Close()
+
+	in := Message{
+		Name:         "github.com/chai2010/protorpc",
+		Hilarity:     Message_PUNS,
+		HeightInCm:   13,
+		Data:         []byte("bin data"),
+		ResultCount:  2<<35 + 1,
+		TrueScotsman: true,
+		Score:        3.14,
+		Key:          []uint64{1, 1001},
+		Nested:       &Nested{Bunny: "{{Bunny}}"},
+		Terrain: map[string]*Nested{
+			"A": &Nested{Bunny: "{{A}}"},
+			"B": &Nested{Bunny: "{{B}}"},
+		},
+	}
+
+	out, err := c.Echo(&in)
+	if err != nil {
+		t.Fatal(err)
+	}
+	if !reflect.DeepEqual(&in, out) {
+		t.Fatalf("not euqal, got = %v\n", &out)
+	}
+}

core/protorpc/examples/service.pb/Makefile

@@ -0,0 +1,14 @@
+# Copyright 2013 <chaishushan{AT}gmail.com>. All rights reserved.
+# Use of this source code is governed by a BSD-style
+# license that can be found in the LICENSE file.
+
+PROTO_FILES=$(sort $(wildcard ./*.proto))
+
+default: $(PROTO_FILES) Makefile
+	go install github.com/golang/protobuf/protoc-gen-go
+	go install github.com/chai2010/protorpc/protoc-gen-protorpc
+	protoc --go_out=. ${PROTO_FILES}
+	ENV_PROTOC_GEN_PROTORPC_FLAG_PREFIX= protoc --protorpc_out=. ${PROTO_FILES}
+	go test
+
+clean:

core/protorpc/examples/service.pb/all_test.go

@@ -0,0 +1,193 @@
+// Copyright 2013 <chaishushan{AT}gmail.com>. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package service
+
+import (
+	"log"
+	"net"
+	"net/rpc"
+	"testing"
+
+	"github.com/chai2010/protorpc"
+)
+
+func init() {
+	err := listenAndServeArithAndEchoService("tcp", "127.0.0.1:1984")
+	if err != nil {
+		log.Fatalf("listenAndServeArithAndEchoService: %v", err)
+	}
+}
+
+func TestAll(t *testing.T) {
+	conn, err := net.Dial("tcp", "127.0.0.1:1984")
+	if err != nil {
+		t.Fatalf(`net.Dial("tcp", "127.0.0.1:1984"): %v`, err)
+	}
+	client := rpc.NewClientWithCodec(protorpc.NewClientCodec(conn))
+	defer client.Close()
+
+	testArithClient(t, client)
+	testEchoClient(t, client)
+
+	arithStub := &ArithServiceClient{client}
+	echoStub := &EchoServiceClient{client}
+
+	testArithStub(t, arithStub)
+	testEchoStub(t, echoStub)
+}
+
+func listenAndServeArithAndEchoService(network, addr string) error {
+	clients, err := net.Listen(network, addr)
+	if err != nil {
+		return err
+	}
+	srv := rpc.NewServer()
+	if err := RegisterArithService(srv, new(Arith)); err != nil {
+		return err
+	}
+	if err := RegisterEchoService(srv, new(Echo)); err != nil {
+		return err
+	}
+	go func() {
+		for {
+			conn, err := clients.Accept()
+			if err != nil {
+				log.Printf("clients.Accept(): %v\n", err)
+				continue
+			}
+			go srv.ServeCodec(protorpc.NewServerCodec(conn))
+		}
+	}()
+	return nil
+}
+
+func testArithClient(t *testing.T, client *rpc.Client) {
+	var args ArithRequest
+	var reply ArithResponse
+	var err error
+
+	// Add
+	args.A = 1
+	args.B = 2
+	if err = client.Call("ArithService.Add", &args, &reply); err != nil {
+		t.Fatalf(`arith.Add: %v`, err)
+	}
+	if reply.C != 3 {
+		t.Fatalf(`arith.Add: expected = %d, got = %d`, 3, reply.C)
+	}
+
+	// Mul
+	args.A = 2
+	args.B = 3
+	if err = client.Call("ArithService.Mul", &args, &reply); err != nil {
+		t.Fatalf(`arith.Mul: %v`, err)
+	}
+	if reply.C != 6 {
+		t.Fatalf(`arith.Mul: expected = %d, got = %d`, 6, reply.C)
+	}
+
+	// Div
+	args.A = 13
+	args.B = 5
+	if err = client.Call("ArithService.Div", &args, &reply); err != nil {
+		t.Fatalf(`arith.Div: %v`, err)
+	}
+	if reply.C != 2 {
+		t.Fatalf(`arith.Div: expected = %d, got = %d`, 2, reply.C)
+	}
+
+	// Div zero
+	args.A = 1
+	args.B = 0
+	if err = client.Call("ArithService.Div", &args, &reply); err.Error() != "divide by zero" {
+		t.Fatalf(`arith.Div: expected = "%s", got = "%s"`, "divide by zero", err.Error())
+	}
+
+	// Error
+	args.A = 1
+	args.B = 2
+	if err = client.Call("ArithService.Error", &args, &reply); err.Error() != "ArithError" {
+		t.Fatalf(`arith.Error: expected = "%s", got = "%s"`, "ArithError", err.Error())
+	}
+}
+
+func testEchoClient(t *testing.T, client *rpc.Client) {
+	var args EchoRequest
+	var reply EchoResponse
+	var err error
+
+	// EchoService.Echo
+	args.Msg = "Hello, Protobuf-RPC"
+	if err = client.Call("EchoService.Echo", &args, &reply); err != nil {
+		t.Fatalf(`echo.Echo: %v`, err)
+	}
+	if reply.Msg != args.Msg {
+		t.Fatalf(`echo.Echo: expected = "%s", got = "%s"`, args.Msg, reply.Msg)
+	}
+}
+
+func testArithStub(t *testing.T, stub *ArithServiceClient) {
+	var args ArithRequest
+	var reply *ArithResponse
+	var err error
+
+	// Add
+	args.A = 1
+	args.B = 2
+	if reply, err = stub.Add(&args); err != nil {
+		t.Fatalf(`stub.Add: %v`, err)
+	}
+	if reply.C != 3 {
+		t.Fatalf(`stub.Add: expected = %d, got = %d`, 3, reply.C)
+	}
+
+	// Mul
+	args.A = 2
+	args.B = 3
+	if reply, err = stub.Mul(&args); err != nil {
+		t.Fatalf(`stub.Mul: %v`, err)
+	}
+	if reply.C != 6 {
+		t.Fatalf(`stub.Mul: expected = %d, got = %d`, 6, reply.C)
+	}
+
+	// Div
+	args.A = 13
+	args.B = 5
+	if reply, err = stub.Div(&args); err != nil {
+		t.Fatalf(`stub.Div: %v`, err)
+	}
+	if reply.C != 2 {
+		t.Fatalf(`stub.Div: expected = %d, got = %d`, 2, reply.C)
+	}
+
+	// Div zero
+	args.A = 1
+	args.B = 0
+	if reply, err = stub.Div(&args); err.Error() != "divide by zero" {
+		t.Fatalf(`stub.Div: expected = "%s", got = "%s"`, "divide by zero", err.Error())
+	}
+
+	// Error
+	args.A = 1
+	args.B = 2
+	if reply, err = stub.Error(&args); err.Error() != "ArithError" {
+		t.Fatalf(`stub.Error: expected = "%s", got = "%s"`, "ArithError", err.Error())
+	}
+}
+func testEchoStub(t *testing.T, stub *EchoServiceClient) {
+	var args EchoRequest
+	var reply *EchoResponse
+	var err error
+
+	// EchoService.Echo
+	args.Msg = "Hello, Protobuf-RPC"
+	if reply, err = stub.Echo(&args); err != nil {
+		t.Fatalf(`stub.Echo: %v`, err)
+	}
+	if reply.Msg != args.Msg {
+		t.Fatalf(`stub.Echo: expected = "%s", got = "%s"`, args.Msg, reply.Msg)
+	}
+}

core/protorpc/examples/service.pb/arith.go

@@ -0,0 +1,33 @@
+// Copyright 2013 <chaishushan{AT}gmail.com>. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package service
+
+import (
+	"errors"
+)
+
+type Arith int
+
+func (t *Arith) Add(args *ArithRequest, reply *ArithResponse) error {
+	reply.C = args.A + args.B
+	return nil
+}
+
+func (t *Arith) Mul(args *ArithRequest, reply *ArithResponse) error {
+	reply.C = args.A * args.B
+	return nil
+}
+
+func (t *Arith) Div(args *ArithRequest, reply *ArithResponse) error {
+	if args.B == 0 {
+		return errors.New("divide by zero")
+	}
+	reply.C = args.A / args.B
+	return nil
+}
+
+func (t *Arith) Error(args *ArithRequest, reply *ArithResponse) error {
+	return errors.New("ArithError")
+}

core/protorpc/examples/service.pb/arith.pb.go

@@ -0,0 +1,93 @@
+// Code generated by protoc-gen-go. DO NOT EDIT.
+// source: arith.proto
+
+/*
+Package service is a generated protocol buffer package.
+
+It is generated from these files:
+	arith.proto
+	echo.proto
+
+It has these top-level messages:
+	ArithRequest
+	ArithResponse
+	EchoRequest
+	EchoResponse
+*/
+package service
+
+import proto "github.com/golang/protobuf/proto"
+import fmt "fmt"
+import math "math"
+
+// Reference imports to suppress errors if they are not otherwise used.
+var _ = proto.Marshal
+var _ = fmt.Errorf
+var _ = math.Inf
+
+// This is a compile-time assertion to ensure that this generated file
+// is compatible with the proto package it is being compiled against.
+// A compilation error at this line likely means your copy of the
+// proto package needs to be updated.
+const _ = proto.ProtoPackageIsVersion2 // please upgrade the proto package
+
+type ArithRequest struct {
+	A int32 `protobuf:"varint,1,opt,name=a" json:"a,omitempty"`
+	B int32 `protobuf:"varint,2,opt,name=b" json:"b,omitempty"`
+}
+
+func (m *ArithRequest) Reset()                    { *m = ArithRequest{} }
+func (m *ArithRequest) String() string            { return proto.CompactTextString(m) }
+func (*ArithRequest) ProtoMessage()               {}
+func (*ArithRequest) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{0} }
+
+func (m *ArithRequest) GetA() int32 {
+	if m != nil {
+		return m.A
+	}
+	return 0
+}
+
+func (m *ArithRequest) GetB() int32 {
+	if m != nil {
+		return m.B
+	}
+	return 0
+}
+
+type ArithResponse struct {
+	C int32 `protobuf:"varint,1,opt,name=c" json:"c,omitempty"`
+}
+
+func (m *ArithResponse) Reset()                    { *m = ArithResponse{} }
+func (m *ArithResponse) String() string            { return proto.CompactTextString(m) }
+func (*ArithResponse) ProtoMessage()               {}
+func (*ArithResponse) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{1} }
+
+func (m *ArithResponse) GetC() int32 {
+	if m != nil {
+		return m.C
+	}
+	return 0
+}
+
+func init() {
+	proto.RegisterType((*ArithRequest)(nil), "service.ArithRequest")
+	proto.RegisterType((*ArithResponse)(nil), "service.ArithResponse")
+}
+
+func init() { proto.RegisterFile("arith.proto", fileDescriptor0) }
+
+var fileDescriptor0 = []byte{
+	// 159 bytes of a gzipped FileDescriptorProto
+	0x1f, 0x8b, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0xff, 0xe2, 0xe2, 0x4e, 0x2c, 0xca, 0x2c,
+	0xc9, 0xd0, 0x2b, 0x28, 0xca, 0x2f, 0xc9, 0x17, 0x62, 0x2f, 0x4e, 0x2d, 0x2a, 0xcb, 0x4c, 0x4e,
+	0x55, 0xd2, 0xe2, 0xe2, 0x71, 0x04, 0x89, 0x07, 0xa5, 0x16, 0x96, 0xa6, 0x16, 0x97, 0x08, 0xf1,
+	0x70, 0x31, 0x26, 0x4a, 0x30, 0x2a, 0x30, 0x6a, 0xb0, 0x06, 0x31, 0x26, 0x82, 0x78, 0x49, 0x12,
+	0x4c, 0x10, 0x5e, 0x92, 0x92, 0x2c, 0x17, 0x2f, 0x54, 0x6d, 0x71, 0x41, 0x7e, 0x5e, 0x71, 0x2a,
+	0x48, 0x3a, 0x19, 0xa6, 0x38, 0xd9, 0xe8, 0x05, 0x23, 0xd4, 0xac, 0x60, 0x88, 0xd9, 0x42, 0x26,
+	0x5c, 0xcc, 0x89, 0x29, 0x29, 0x42, 0xa2, 0x7a, 0x50, 0xcb, 0xf4, 0x90, 0x6d, 0x92, 0x12, 0x43,
+	0x17, 0x86, 0x1a, 0x6a, 0xc2, 0xc5, 0x9c, 0x5b, 0x9a, 0x43, 0x86, 0xae, 0x94, 0xcc, 0x32, 0x52,
+	0x75, 0x99, 0x71, 0xb1, 0xa6, 0x16, 0x15, 0xe5, 0x17, 0x91, 0xa8, 0x2f, 0x89, 0x0d, 0x1c, 0x8a,
+	0xc6, 0x80, 0x00, 0x00, 0x00, 0xff, 0xff, 0xa2, 0x62, 0xfd, 0xbd, 0x54, 0x01, 0x00, 0x00,
+}

core/protorpc/examples/service.pb/arith.pb.protorpc.go

@@ -0,0 +1,291 @@
+// Code generated by protoc-gen-protorpc. DO NOT EDIT.
+//
+// plugin: https://github.com/chai2010/protorpc/tree/master/protoc-gen-plugin
+// plugin: https://github.com/chai2010/protorpc/tree/master/protoc-gen-protorpc
+//
+// source: arith.proto
+
+package service
+
+import (
+	"fmt"
+	"io"
+	"log"
+	"net"
+	"net/rpc"
+	"time"
+
+	"github.com/chai2010/protorpc"
+	"github.com/golang/protobuf/proto"
+)
+
+var (
+	_ = fmt.Sprint
+	_ = io.Reader(nil)
+	_ = log.Print
+	_ = net.Addr(nil)
+	_ = rpc.Call{}
+	_ = time.Second
+
+	_ = proto.String
+	_ = protorpc.Dial
+)
+
+type ArithService interface {
+	Add(in *ArithRequest, out *ArithResponse) error
+	Mul(in *ArithRequest, out *ArithResponse) error
+	Div(in *ArithRequest, out *ArithResponse) error
+	Error(in *ArithRequest, out *ArithResponse) error
+}
+
+// AcceptArithServiceClient accepts connections on the listener and serves requests
+// for each incoming connection.  Accept blocks; the caller typically
+// invokes it in a go statement.
+func AcceptArithServiceClient(lis net.Listener, x ArithService) {
+	srv := rpc.NewServer()
+	if err := srv.RegisterName("ArithService", x); err != nil {
+		log.Fatal(err)
+	}
+
+	for {
+		conn, err := lis.Accept()
+		if err != nil {
+			log.Fatalf("lis.Accept(): %v\n", err)
+		}
+		go srv.ServeCodec(protorpc.NewServerCodec(conn))
+	}
+}
+
+// RegisterArithService publish the given ArithService implementation on the server.
+func RegisterArithService(srv *rpc.Server, x ArithService) error {
+	if err := srv.RegisterName("ArithService", x); err != nil {
+		return err
+	}
+	return nil
+}
+
+// NewArithServiceServer returns a new ArithService Server.
+func NewArithServiceServer(x ArithService) *rpc.Server {
+	srv := rpc.NewServer()
+	if err := srv.RegisterName("ArithService", x); err != nil {
+		log.Fatal(err)
+	}
+	return srv
+}
+
+// ListenAndServeArithService listen announces on the local network address laddr
+// and serves the given ArithService implementation.
+func ListenAndServeArithService(network, addr string, x ArithService) error {
+	lis, err := net.Listen(network, addr)
+	if err != nil {
+		return err
+	}
+	defer lis.Close()
+
+	srv := rpc.NewServer()
+	if err := srv.RegisterName("ArithService", x); err != nil {
+		return err
+	}
+
+	for {
+		conn, err := lis.Accept()
+		if err != nil {
+			log.Fatalf("lis.Accept(): %v\n", err)
+		}
+		go srv.ServeCodec(protorpc.NewServerCodec(conn))
+	}
+}
+
+// ServeArithService serves the given ArithService implementation.
+func ServeArithService(conn io.ReadWriteCloser, x ArithService) {
+	srv := rpc.NewServer()
+	if err := srv.RegisterName("ArithService", x); err != nil {
+		log.Fatal(err)
+	}
+	srv.ServeCodec(protorpc.NewServerCodec(conn))
+}
+
+type ArithServiceClient struct {
+	*rpc.Client
+}
+
+// NewArithServiceClient returns a ArithService stub to handle
+// requests to the set of ArithService at the other end of the connection.
+func NewArithServiceClient(conn io.ReadWriteCloser) *ArithServiceClient {
+	c := rpc.NewClientWithCodec(protorpc.NewClientCodec(conn))
+	return &ArithServiceClient{c}
+}
+
+func (c *ArithServiceClient) Add(in *ArithRequest) (out *ArithResponse, err error) {
+	if in == nil {
+		in = new(ArithRequest)
+	}
+
+	type Validator interface {
+		Validate() error
+	}
+	if x, ok := proto.Message(in).(Validator); ok {
+		if err := x.Validate(); err != nil {
+			return nil, err
+		}
+	}
+
+	out = new(ArithResponse)
+	if err = c.Call("ArithService.Add", in, out); err != nil {
+		return nil, err
+	}
+
+	if x, ok := proto.Message(out).(Validator); ok {
+		if err := x.Validate(); err != nil {
+			return out, err
+		}
+	}
+
+	return out, nil
+}
+
+func (c *ArithServiceClient) AsyncAdd(in *ArithRequest, out *ArithResponse, done chan *rpc.Call) *rpc.Call {
+	if in == nil {
+		in = new(ArithRequest)
+	}
+	return c.Go(
+		"ArithService.Add",
+		in, out,
+		done,
+	)
+}
+
+func (c *ArithServiceClient) Mul(in *ArithRequest) (out *ArithResponse, err error) {
+	if in == nil {
+		in = new(ArithRequest)
+	}
+
+	type Validator interface {
+		Validate() error
+	}
+	if x, ok := proto.Message(in).(Validator); ok {
+		if err := x.Validate(); err != nil {
+			return nil, err
+		}
+	}
+
+	out = new(ArithResponse)
+	if err = c.Call("ArithService.Mul", in, out); err != nil {
+		return nil, err
+	}
+
+	if x, ok := proto.Message(out).(Validator); ok {
+		if err := x.Validate(); err != nil {
+			return out, err
+		}
+	}
+
+	return out, nil
+}
+
+func (c *ArithServiceClient) AsyncMul(in *ArithRequest, out *ArithResponse, done chan *rpc.Call) *rpc.Call {
+	if in == nil {
+		in = new(ArithRequest)
+	}
+	return c.Go(
+		"ArithService.Mul",
+		in, out,
+		done,
+	)
+}
+
+func (c *ArithServiceClient) Div(in *ArithRequest) (out *ArithResponse, err error) {
+	if in == nil {
+		in = new(ArithRequest)
+	}
+
+	type Validator interface {
+		Validate() error
+	}
+	if x, ok := proto.Message(in).(Validator); ok {
+		if err := x.Validate(); err != nil {
+			return nil, err
+		}
+	}
+
+	out = new(ArithResponse)
+	if err = c.Call("ArithService.Div", in, out); err != nil {
+		return nil, err
+	}
+
+	if x, ok := proto.Message(out).(Validator); ok {
+		if err := x.Validate(); err != nil {
+			return out, err
+		}
+	}
+
+	return out, nil
+}
+
+func (c *ArithServiceClient) AsyncDiv(in *ArithRequest, out *ArithResponse, done chan *rpc.Call) *rpc.Call {
+	if in == nil {
+		in = new(ArithRequest)
+	}
+	return c.Go(
+		"ArithService.Div",
+		in, out,
+		done,
+	)
+}
+
+func (c *ArithServiceClient) Error(in *ArithRequest) (out *ArithResponse, err error) {
+	if in == nil {
+		in = new(ArithRequest)
+	}
+
+	type Validator interface {
+		Validate() error
+	}
+	if x, ok := proto.Message(in).(Validator); ok {
+		if err := x.Validate(); err != nil {
+			return nil, err
+		}
+	}
+
+	out = new(ArithResponse)
+	if err = c.Call("ArithService.Error", in, out); err != nil {
+		return nil, err
+	}
+
+	if x, ok := proto.Message(out).(Validator); ok {
+		if err := x.Validate(); err != nil {
+			return out, err
+		}
+	}
+
+	return out, nil
+}
+
+func (c *ArithServiceClient) AsyncError(in *ArithRequest, out *ArithResponse, done chan *rpc.Call) *rpc.Call {
+	if in == nil {
+		in = new(ArithRequest)
+	}
+	return c.Go(
+		"ArithService.Error",
+		in, out,
+		done,
+	)
+}
+
+// DialArithService connects to an ArithService at the specified network address.
+func DialArithService(network, addr string) (*ArithServiceClient, error) {
+	c, err := protorpc.Dial(network, addr)
+	if err != nil {
+		return nil, err
+	}
+	return &ArithServiceClient{c}, nil
+}
+
+// DialArithServiceTimeout connects to an ArithService at the specified network address.
+func DialArithServiceTimeout(network, addr string, timeout time.Duration) (*ArithServiceClient, error) {
+	c, err := protorpc.DialTimeout(network, addr, timeout)
+	if err != nil {
+		return nil, err
+	}
+	return &ArithServiceClient{c}, nil
+}

core/protorpc/examples/service.pb/arith.proto

@@ -0,0 +1,23 @@
+// Copyright 2013 <chaishushan{AT}gmail.com>. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+syntax = "proto3";
+
+package service;
+
+message ArithRequest {
+	int32 a = 1;
+	int32 b = 2;
+}
+
+message ArithResponse {
+	int32 c = 1;
+}
+
+service ArithService {
+	rpc add (ArithRequest) returns (ArithResponse);
+	rpc mul (ArithRequest) returns (ArithResponse);
+	rpc div (ArithRequest) returns (ArithResponse);
+	rpc error (ArithRequest) returns (ArithResponse);
+}

core/protorpc/examples/service.pb/arith_test.go

@@ -0,0 +1,34 @@
+// Copyright 2013 <chaishushan{AT}gmail.com>. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package service
+
+import (
+	"fmt"
+	"log"
+	"sync"
+)
+
+var (
+	arithHost = "127.0.0.1"
+	arithPort = 2010
+
+	onceArith sync.Once
+)
+
+func setupArithServer() {
+	var wg sync.WaitGroup
+	wg.Add(1)
+	defer wg.Wait()
+
+	go func() {
+		wg.Done()
+
+		addr := fmt.Sprintf("127.0.0.1:%d", arithPort)
+		err := ListenAndServeArithService("tcp", addr, new(Arith))
+		if err != nil {
+			log.Fatalf("ListenAndServeArithService: %v", err)
+		}
+	}()
+}

core/protorpc/examples/service.pb/echo.go

@@ -0,0 +1,17 @@
+// Copyright 2013 <chaishushan{AT}gmail.com>. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package service
+
+type Echo int
+
+func (t *Echo) Echo(args *EchoRequest, reply *EchoResponse) error {
+	reply.Msg = args.Msg
+	return nil
+}
+
+func (t *Echo) EchoTwice(args *EchoRequest, reply *EchoResponse) error {
+	reply.Msg = args.Msg + args.Msg
+	return nil
+}

core/protorpc/examples/service.pb/echo.pb.go

@@ -0,0 +1,65 @@
+// Code generated by protoc-gen-go. DO NOT EDIT.
+// source: echo.proto
+
+package service
+
+import proto "github.com/golang/protobuf/proto"
+import fmt "fmt"
+import math "math"
+
+// Reference imports to suppress errors if they are not otherwise used.
+var _ = proto.Marshal
+var _ = fmt.Errorf
+var _ = math.Inf
+
+type EchoRequest struct {
+	Msg string `protobuf:"bytes,1,opt,name=msg" json:"msg,omitempty"`
+}
+
+func (m *EchoRequest) Reset()                    { *m = EchoRequest{} }
+func (m *EchoRequest) String() string            { return proto.CompactTextString(m) }
+func (*EchoRequest) ProtoMessage()               {}
+func (*EchoRequest) Descriptor() ([]byte, []int) { return fileDescriptor1, []int{0} }
+
+func (m *EchoRequest) GetMsg() string {
+	if m != nil {
+		return m.Msg
+	}
+	return ""
+}
+
+type EchoResponse struct {
+	Msg string `protobuf:"bytes,1,opt,name=msg" json:"msg,omitempty"`
+}
+
+func (m *EchoResponse) Reset()                    { *m = EchoResponse{} }
+func (m *EchoResponse) String() string            { return proto.CompactTextString(m) }
+func (*EchoResponse) ProtoMessage()               {}
+func (*EchoResponse) Descriptor() ([]byte, []int) { return fileDescriptor1, []int{1} }
+
+func (m *EchoResponse) GetMsg() string {
+	if m != nil {
+		return m.Msg
+	}
+	return ""
+}
+
+func init() {
+	proto.RegisterType((*EchoRequest)(nil), "service.EchoRequest")
+	proto.RegisterType((*EchoResponse)(nil), "service.EchoResponse")
+}
+
+func init() { proto.RegisterFile("echo.proto", fileDescriptor1) }
+
+var fileDescriptor1 = []byte{
+	// 134 bytes of a gzipped FileDescriptorProto
+	0x1f, 0x8b, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0xff, 0xe2, 0xe2, 0x4a, 0x4d, 0xce, 0xc8,
+	0xd7, 0x2b, 0x28, 0xca, 0x2f, 0xc9, 0x17, 0x62, 0x2f, 0x4e, 0x2d, 0x2a, 0xcb, 0x4c, 0x4e, 0x55,
+	0x92, 0xe7, 0xe2, 0x76, 0x4d, 0xce, 0xc8, 0x0f, 0x4a, 0x2d, 0x2c, 0x4d, 0x2d, 0x2e, 0x11, 0x12,
+	0xe0, 0x62, 0xce, 0x2d, 0x4e, 0x97, 0x60, 0x54, 0x60, 0xd4, 0xe0, 0x0c, 0x02, 0x31, 0x95, 0x14,
+	0xb8, 0x78, 0x20, 0x0a, 0x8a, 0x0b, 0xf2, 0xf3, 0x8a, 0x53, 0x31, 0x55, 0x18, 0xd5, 0x40, 0x8c,
+	0x08, 0x86, 0x98, 0x28, 0x64, 0xcc, 0xc5, 0x02, 0xe2, 0x0a, 0x89, 0xe8, 0x41, 0xed, 0xd0, 0x43,
+	0xb2, 0x40, 0x4a, 0x14, 0x4d, 0x14, 0x6a, 0xaa, 0x05, 0x17, 0x27, 0x88, 0x1f, 0x52, 0x0e, 0x32,
+	0x81, 0x14, 0x9d, 0x49, 0x6c, 0x60, 0x0f, 0x19, 0x03, 0x02, 0x00, 0x00, 0xff, 0xff, 0x00, 0xc1,
+	0xd4, 0xbd, 0xde, 0x00, 0x00, 0x00,
+}

core/protorpc/examples/service.pb/echo.pb.protorpc.go

@@ -0,0 +1,211 @@
+// Code generated by protoc-gen-protorpc. DO NOT EDIT.
+//
+// plugin: https://github.com/chai2010/protorpc/tree/master/protoc-gen-plugin
+// plugin: https://github.com/chai2010/protorpc/tree/master/protoc-gen-protorpc
+//
+// source: echo.proto
+
+package service
+
+import (
+	"fmt"
+	"io"
+	"log"
+	"net"
+	"net/rpc"
+	"time"
+
+	"github.com/chai2010/protorpc"
+	"github.com/golang/protobuf/proto"
+)
+
+var (
+	_ = fmt.Sprint
+	_ = io.Reader(nil)
+	_ = log.Print
+	_ = net.Addr(nil)
+	_ = rpc.Call{}
+	_ = time.Second
+
+	_ = proto.String
+	_ = protorpc.Dial
+)
+
+type EchoService interface {
+	Echo(in *EchoRequest, out *EchoResponse) error
+	EchoTwice(in *EchoRequest, out *EchoResponse) error
+}
+
+// AcceptEchoServiceClient accepts connections on the listener and serves requests
+// for each incoming connection.  Accept blocks; the caller typically
+// invokes it in a go statement.
+func AcceptEchoServiceClient(lis net.Listener, x EchoService) {
+	srv := rpc.NewServer()
+	if err := srv.RegisterName("EchoService", x); err != nil {
+		log.Fatal(err)
+	}
+
+	for {
+		conn, err := lis.Accept()
+		if err != nil {
+			log.Fatalf("lis.Accept(): %v\n", err)
+		}
+		go srv.ServeCodec(protorpc.NewServerCodec(conn))
+	}
+}
+
+// RegisterEchoService publish the given EchoService implementation on the server.
+func RegisterEchoService(srv *rpc.Server, x EchoService) error {
+	if err := srv.RegisterName("EchoService", x); err != nil {
+		return err
+	}
+	return nil
+}
+
+// NewEchoServiceServer returns a new EchoService Server.
+func NewEchoServiceServer(x EchoService) *rpc.Server {
+	srv := rpc.NewServer()
+	if err := srv.RegisterName("EchoService", x); err != nil {
+		log.Fatal(err)
+	}
+	return srv
+}
+
+// ListenAndServeEchoService listen announces on the local network address laddr
+// and serves the given EchoService implementation.
+func ListenAndServeEchoService(network, addr string, x EchoService) error {
+	lis, err := net.Listen(network, addr)
+	if err != nil {
+		return err
+	}
+	defer lis.Close()
+
+	srv := rpc.NewServer()
+	if err := srv.RegisterName("EchoService", x); err != nil {
+		return err
+	}
+
+	for {
+		conn, err := lis.Accept()
+		if err != nil {
+			log.Fatalf("lis.Accept(): %v\n", err)
+		}
+		go srv.ServeCodec(protorpc.NewServerCodec(conn))
+	}
+}
+
+// ServeEchoService serves the given EchoService implementation.
+func ServeEchoService(conn io.ReadWriteCloser, x EchoService) {
+	srv := rpc.NewServer()
+	if err := srv.RegisterName("EchoService", x); err != nil {
+		log.Fatal(err)
+	}
+	srv.ServeCodec(protorpc.NewServerCodec(conn))
+}
+
+type EchoServiceClient struct {
+	*rpc.Client
+}
+
+// NewEchoServiceClient returns a EchoService stub to handle
+// requests to the set of EchoService at the other end of the connection.
+func NewEchoServiceClient(conn io.ReadWriteCloser) *EchoServiceClient {
+	c := rpc.NewClientWithCodec(protorpc.NewClientCodec(conn))
+	return &EchoServiceClient{c}
+}
+
+func (c *EchoServiceClient) Echo(in *EchoRequest) (out *EchoResponse, err error) {
+	if in == nil {
+		in = new(EchoRequest)
+	}
+
+	type Validator interface {
+		Validate() error
+	}
+	if x, ok := proto.Message(in).(Validator); ok {
+		if err := x.Validate(); err != nil {
+			return nil, err
+		}
+	}
+
+	out = new(EchoResponse)
+	if err = c.Call("EchoService.Echo", in, out); err != nil {
+		return nil, err
+	}
+
+	if x, ok := proto.Message(out).(Validator); ok {
+		if err := x.Validate(); err != nil {
+			return out, err
+		}
+	}
+
+	return out, nil
+}
+
+func (c *EchoServiceClient) AsyncEcho(in *EchoRequest, out *EchoResponse, done chan *rpc.Call) *rpc.Call {
+	if in == nil {
+		in = new(EchoRequest)
+	}
+	return c.Go(
+		"EchoService.Echo",
+		in, out,
+		done,
+	)
+}
+
+func (c *EchoServiceClient) EchoTwice(in *EchoRequest) (out *EchoResponse, err error) {
+	if in == nil {
+		in = new(EchoRequest)
+	}
+
+	type Validator interface {
+		Validate() error
+	}
+	if x, ok := proto.Message(in).(Validator); ok {
+		if err := x.Validate(); err != nil {
+			return nil, err
+		}
+	}
+
+	out = new(EchoResponse)
+	if err = c.Call("EchoService.EchoTwice", in, out); err != nil {
+		return nil, err
+	}
+
+	if x, ok := proto.Message(out).(Validator); ok {
+		if err := x.Validate(); err != nil {
+			return out, err
+		}
+	}
+
+	return out, nil
+}
+
+func (c *EchoServiceClient) AsyncEchoTwice(in *EchoRequest, out *EchoResponse, done chan *rpc.Call) *rpc.Call {
+	if in == nil {
+		in = new(EchoRequest)
+	}
+	return c.Go(
+		"EchoService.EchoTwice",
+		in, out,
+		done,
+	)
+}
+
+// DialEchoService connects to an EchoService at the specified network address.
+func DialEchoService(network, addr string) (*EchoServiceClient, error) {
+	c, err := protorpc.Dial(network, addr)
+	if err != nil {
+		return nil, err
+	}
+	return &EchoServiceClient{c}, nil
+}
+
+// DialEchoServiceTimeout connects to an EchoService at the specified network address.
+func DialEchoServiceTimeout(network, addr string, timeout time.Duration) (*EchoServiceClient, error) {
+	c, err := protorpc.DialTimeout(network, addr, timeout)
+	if err != nil {
+		return nil, err
+	}
+	return &EchoServiceClient{c}, nil
+}

core/protorpc/examples/service.pb/echo.proto

@@ -0,0 +1,20 @@
+// Copyright 2013 <chaishushan{AT}gmail.com>. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+syntax = "proto3";
+
+package service;
+
+message EchoRequest {
+	string msg = 1;
+}
+
+message EchoResponse {
+	string msg = 1;
+}
+
+service EchoService {
+	rpc Echo (EchoRequest) returns (EchoResponse);
+	rpc EchoTwice (EchoRequest) returns (EchoResponse);
+}

core/protorpc/examples/service.pb/echo_test.go

@@ -0,0 +1,698 @@
+// Copyright 2013 <chaishushan{AT}gmail.com>. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package service
+
+import (
+	"fmt"
+	"log"
+	"net/rpc"
+	"sync"
+	"testing"
+	"unicode/utf8"
+)
+
+var (
+	echoHost = "127.0.0.1"
+	echoPort = 2015
+
+	echoRequest         = "Hello, new gopher!"
+	echoResponse        = echoRequest + echoRequest
+	echoMassiveRequest  = makeMassive("Hello, 世界.")
+	echoMassiveResponse = echoMassiveRequest + echoMassiveRequest
+
+	onceEcho sync.Once
+)
+
+func makeMassive(args string) string {
+	runeLen := utf8.RuneCountInString(args)
+	runeBuf := make([]rune, runeLen*1024*100)
+	for i := 0; i < 1024*100; i++ {
+		offset := i * runeLen
+		j := 0
+		for _, r := range args {
+			runeBuf[offset+j] = r
+			j++
+		}
+	}
+	return string(runeBuf)
+}
+
+func setupEchoServer() {
+	var wg sync.WaitGroup
+	wg.Add(1)
+	defer wg.Wait()
+
+	go func() {
+		wg.Done()
+
+		addr := fmt.Sprintf("127.0.0.1:%d", echoPort)
+		err := ListenAndServeEchoService("tcp", addr, new(Echo))
+		if err != nil {
+			log.Fatalf("ListenAndServeEchoService: %v", err)
+		}
+	}()
+}
+
+func TestEchoService(t *testing.T) {
+	onceEcho.Do(setupEchoServer)
+
+	addr := fmt.Sprintf("%s:%d", echoHost, echoPort)
+	c, err := DialEchoService("tcp", addr)
+	if err != nil {
+		t.Fatalf(
+			`net.Dial("tcp", "%s:%d"): %v`,
+			echoHost, echoPort,
+			err,
+		)
+	}
+	defer c.Close()
+
+	testEchoService(t, c.Client)
+}
+
+func testEchoService(t *testing.T, client *rpc.Client) {
+	var args EchoRequest
+	var reply EchoResponse
+	var err error
+
+	// EchoService.EchoTwice
+	args.Msg = echoRequest
+	err = client.Call("EchoService.EchoTwice", &args, &reply)
+	if err != nil {
+		t.Fatalf(`EchoService.EchoTwice: %v`, err)
+	}
+	if reply.Msg != echoResponse {
+		t.Fatalf(
+			`EchoService.EchoTwice: expected = "%s", got = "%s"`,
+			echoResponse, reply.Msg,
+		)
+	}
+
+	// EchoService.EchoTwice (Massive)
+	args.Msg = echoMassiveRequest
+	err = client.Call("EchoService.EchoTwice", &args, &reply)
+	if err != nil {
+		t.Fatalf(`EchoService.EchoTwice: %v`, err)
+	}
+	if reply.Msg != echoMassiveResponse {
+		got := reply.Msg
+		if len(got) > 8 {
+			got = got[:8] + "..."
+		}
+		t.Fatalf(`EchoService.EchoTwice: len = %d, got = %v`,
+			len(reply.Msg), got,
+		)
+	}
+}
+
+func TestClientSyncEcho(t *testing.T) {
+	onceEcho.Do(setupEchoServer)
+
+	addr := fmt.Sprintf("%s:%d", echoHost, echoPort)
+	echoClient, err := DialEchoService("tcp", addr)
+	if err != nil {
+		t.Fatalf(
+			`net.Dial("tcp", "%s:%d"): %v`,
+			echoHost, echoPort,
+			err,
+		)
+	}
+	defer echoClient.Close()
+
+	var args EchoRequest
+	var reply *EchoResponse
+
+	// EchoService.EchoTwice
+	args.Msg = "abc"
+	reply, err = echoClient.EchoTwice(&args)
+	if err != nil {
+		t.Fatalf(`EchoService.EchoTwice: %v`, err)
+	}
+	if reply.Msg != args.Msg+args.Msg {
+		t.Fatalf(
+			`EchoService.EchoTwice: expected = "%s", got = "%s"`,
+			args.Msg+args.Msg, reply.Msg,
+		)
+	}
+
+	// EchoService.EchoTwice
+	args.Msg = "你好, 世界"
+	reply, err = echoClient.EchoTwice(&args)
+	if err != nil {
+		t.Fatalf(`EchoService.EchoTwice: %v`, err)
+	}
+	if reply.Msg != args.Msg+args.Msg {
+		t.Fatalf(
+			`EchoService.EchoTwice: expected = "%s", got = "%s"`,
+			args.Msg+args.Msg, reply.Msg,
+		)
+	}
+}
+
+func TestClientSyncMassive(t *testing.T) {
+	onceEcho.Do(setupEchoServer)
+
+	addr := fmt.Sprintf("%s:%d", echoHost, echoPort)
+	echoClient, err := DialEchoService("tcp", addr)
+	if err != nil {
+		t.Fatalf(
+			`net.Dial("tcp", "%s:%d"): %v`,
+			echoHost, echoPort,
+			err,
+		)
+	}
+	defer echoClient.Close()
+
+	var args EchoRequest
+	var reply *EchoResponse
+
+	// EchoService.EchoTwice
+	args.Msg = echoMassiveRequest + "abc"
+	reply, err = echoClient.EchoTwice(&args)
+	if err != nil {
+		t.Fatalf(`EchoService.EchoTwice: %v`, err)
+	}
+	if reply.Msg != args.Msg+args.Msg {
+		got := reply.Msg
+		if len(got) > 8 {
+			got = got[:8] + "..."
+		}
+		t.Fatalf(`EchoService.EchoTwice: len = %d, got = %v`,
+			len(reply.Msg), got,
+		)
+	}
+
+	// EchoService.EchoTwice
+	args.Msg = echoMassiveRequest + "你好, 世界"
+	reply, err = echoClient.EchoTwice(&args)
+	if err != nil {
+		t.Fatalf(`EchoService.EchoTwice: %v`, err)
+	}
+	if reply.Msg != args.Msg+args.Msg {
+		got := reply.Msg
+		if len(got) > 8 {
+			got = got[:8] + "..."
+		}
+		t.Fatalf(`EchoService.EchoTwice: len = %d, got = %v`,
+			len(reply.Msg), got,
+		)
+	}
+}
+
+func TestClientAsyncEcho(t *testing.T) {
+	onceEcho.Do(setupEchoServer)
+
+	addr := fmt.Sprintf("%s:%d", echoHost, echoPort)
+	client, err := DialEchoService("tcp", addr)
+	if err != nil {
+		t.Fatalf(
+			`net.Dial("tcp", "%s:%d"): %v`,
+			echoHost, echoPort,
+			err,
+		)
+	}
+	defer client.Close()
+
+	var args EchoRequest
+	var reply EchoResponse
+
+	// EchoService.EchoTwice
+	args.Msg = echoRequest
+	call := client.Go("EchoService.EchoTwice", &args, &reply, nil)
+
+	call = <-call.Done
+	if call.Error != nil {
+		t.Fatalf(`EchoService.EchoTwice: %v`, call.Error)
+	}
+	if call.Reply.(*EchoResponse).Msg != echoResponse {
+		t.Fatalf(
+			`EchoService.EchoTwice: expected = "%s", got = "%s"`,
+			echoResponse, call.Reply.(*EchoResponse).Msg,
+		)
+	}
+}
+
+func TestClientAsyncEchoBatches(t *testing.T) {
+	onceEcho.Do(setupEchoServer)
+
+	addr := fmt.Sprintf("%s:%d", echoHost, echoPort)
+	client, err := DialEchoService("tcp", addr)
+	if err != nil {
+		t.Fatalf(
+			`net.Dial("tcp", "%s:%d"): %v`,
+			echoHost, echoPort,
+			err,
+		)
+	}
+	defer client.Close()
+
+	var args1 EchoRequest
+	var reply1 EchoResponse
+	var args2 EchoRequest
+	var reply2 EchoResponse
+	var args3 EchoRequest
+	var reply3 EchoResponse
+
+	// EchoService.EchoTwice
+	args1.Msg = "abc"
+	call1 := client.Go("EchoService.EchoTwice", &args1, &reply1, nil)
+	args2.Msg = "你好, 世界"
+	call2 := client.Go("EchoService.EchoTwice", &args2, &reply2, nil)
+	args3.Msg = "Hello, 世界"
+	call3 := client.Go("EchoService.EchoTwice", &args3, &reply3, nil)
+
+	call1 = <-call1.Done
+	call2 = <-call2.Done
+	call3 = <-call3.Done
+
+	// call1
+	if call1.Error != nil {
+		t.Fatalf(`EchoService.EchoTwice: %v`, call1.Error)
+	}
+	if call1.Reply.(*EchoResponse).Msg != args1.Msg+args1.Msg {
+		t.Fatalf(
+			`EchoService.EchoTwice: expected = "%s", got = "%s"`,
+			args1.Msg+args1.Msg,
+			call1.Reply.(*EchoResponse).Msg,
+		)
+	}
+
+	// call2
+	if call2.Error != nil {
+		t.Fatalf(`EchoService.EchoTwice: %v`, call2.Error)
+	}
+	if call2.Reply.(*EchoResponse).Msg != args2.Msg+args2.Msg {
+		t.Fatalf(
+			`EchoService.EchoTwice: expected = "%s", got = "%s"`,
+			args2.Msg+args2.Msg,
+			call2.Reply.(*EchoResponse).Msg,
+		)
+	}
+
+	// call3
+	if call3.Error != nil {
+		t.Fatalf(`EchoService.EchoTwice: %v`, call3.Error)
+	}
+	if call3.Reply.(*EchoResponse).Msg != args3.Msg+args3.Msg {
+		t.Fatalf(
+			`EchoService.EchoTwice: expected = "%s", got = "%s"`,
+			args3.Msg+args3.Msg,
+			call3.Reply.(*EchoResponse).Msg,
+		)
+	}
+}
+
+func TestClientAsyncMassive(t *testing.T) {
+	onceEcho.Do(setupEchoServer)
+
+	addr := fmt.Sprintf("%s:%d", echoHost, echoPort)
+	client, err := DialEchoService("tcp", addr)
+	if err != nil {
+		t.Fatalf(
+			`net.Dial("tcp", "%s:%d"): %v`,
+			echoHost, echoPort,
+			err,
+		)
+	}
+	defer client.Close()
+
+	var args EchoRequest
+	var reply EchoResponse
+
+	// EchoService.EchoTwice
+	args.Msg = echoMassiveRequest
+	call := client.Go("EchoService.EchoTwice", &args, &reply, nil)
+
+	call = <-call.Done
+	if call.Error != nil {
+		t.Fatalf(`EchoService.EchoTwice: %v`, call.Error)
+	}
+	if call.Reply.(*EchoResponse).Msg != echoMassiveResponse {
+		got := call.Reply.(*EchoResponse).Msg
+		if len(got) > 8 {
+			got = got[:8] + "..."
+		}
+		t.Fatalf(`EchoService.EchoTwice: len = %d, got = %v`,
+			len(call.Reply.(*EchoResponse).Msg), got,
+		)
+	}
+}
+
+func TestClientAsyncMassiveBatches(t *testing.T) {
+	onceEcho.Do(setupEchoServer)
+
+	addr := fmt.Sprintf("%s:%d", echoHost, echoPort)
+	client, err := DialEchoService("tcp", addr)
+	if err != nil {
+		t.Fatalf(
+			`net.Dial("tcp", "%s:%d"): %v`,
+			echoHost, echoPort,
+			err,
+		)
+	}
+	defer client.Close()
+
+	var args1 EchoRequest
+	var reply1 EchoResponse
+	var args2 EchoRequest
+	var reply2 EchoResponse
+	var args3 EchoRequest
+	var reply3 EchoResponse
+
+	// EchoService.EchoTwice
+	args1.Msg = echoMassiveRequest + "abc"
+	call1 := client.Go("EchoService.EchoTwice", &args1, &reply1, nil)
+	args2.Msg = echoMassiveRequest + "你好, 世界"
+	call2 := client.Go("EchoService.EchoTwice", &args2, &reply2, nil)
+	args3.Msg = echoMassiveRequest + "Hello, 世界"
+	call3 := client.Go("EchoService.EchoTwice", &args3, &reply3, nil)
+
+	call1 = <-call1.Done
+	call2 = <-call2.Done
+	call3 = <-call3.Done
+
+	// call1
+	if call1.Error != nil {
+		t.Fatalf(`EchoService.EchoTwice: %v`, call1.Error)
+	}
+	if call1.Reply.(*EchoResponse).Msg != args1.Msg+args1.Msg {
+		got := call1.Reply.(*EchoResponse).Msg
+		if len(got) > 8 {
+			got = got[:8] + "..."
+		}
+		t.Fatalf(`EchoService.EchoTwice: len = %d, got = %v`,
+			len(call1.Reply.(*EchoResponse).Msg), got,
+		)
+	}
+
+	// call2
+	if call2.Error != nil {
+		t.Fatalf(`EchoService.EchoTwice: %v`, call2.Error)
+	}
+	if call2.Reply.(*EchoResponse).Msg != args2.Msg+args2.Msg {
+		got := call2.Reply.(*EchoResponse).Msg
+		if len(got) > 8 {
+			got = got[:8] + "..."
+		}
+		t.Fatalf(`EchoService.EchoTwice: len = %d, got = %v`,
+			len(call2.Reply.(*EchoResponse).Msg), got,
+		)
+	}
+
+	// call3
+	if call3.Error != nil {
+		t.Fatalf(`EchoService.EchoTwice: %v`, call3.Error)
+	}
+	if call3.Reply.(*EchoResponse).Msg != args3.Msg+args3.Msg {
+		got := call3.Reply.(*EchoResponse).Msg
+		if len(got) > 8 {
+			got = got[:8] + "..."
+		}
+		t.Fatalf(`EchoService.EchoTwice: len = %d, got = %v`,
+			len(call3.Reply.(*EchoResponse).Msg), got,
+		)
+	}
+}
+
+func BenchmarkSyncEcho(b *testing.B) {
+	onceEcho.Do(setupEchoServer)
+
+	addr := fmt.Sprintf("%s:%d", echoHost, echoPort)
+	echoClient, err := DialEchoService("tcp", addr)
+	if err != nil {
+		b.Fatalf(
+			`net.Dial("tcp", "%s:%d"): %v`,
+			echoHost, echoPort,
+			err,
+		)
+	}
+	defer echoClient.Close()
+
+	b.ResetTimer()
+	for i := 0; i < b.N; i++ {
+		var args EchoRequest
+		var reply *EchoResponse
+
+		// EchoService.EchoTwice
+		args.Msg = "abc"
+		reply, err = echoClient.EchoTwice(&args)
+		if err != nil {
+			b.Fatalf(`EchoService.EchoTwice: %v`, err)
+		}
+		if reply.Msg != args.Msg+args.Msg {
+			b.Fatalf(
+				`EchoService.EchoTwice: expected = "%s", got = "%s"`,
+				args.Msg+args.Msg, reply.Msg,
+			)
+		}
+
+		// EchoService.EchoTwice
+		args.Msg = "你好, 世界"
+		reply, err = echoClient.EchoTwice(&args)
+		if err != nil {
+			b.Fatalf(`EchoService.EchoTwice: %v`, err)
+		}
+		if reply.Msg != args.Msg+args.Msg {
+			b.Fatalf(
+				`EchoService.EchoTwice: expected = "%s", got = "%s"`,
+				args.Msg+args.Msg, reply.Msg,
+			)
+		}
+
+		// EchoService.EchoTwice
+		args.Msg = "Hello, 世界"
+		reply, err = echoClient.EchoTwice(&args)
+		if err != nil {
+			b.Fatalf(`EchoService.EchoTwice: %v`, err)
+		}
+		if reply.Msg != args.Msg+args.Msg {
+			b.Fatalf(
+				`EchoService.EchoTwice: expected = "%s", got = "%s"`,
+				args.Msg+args.Msg, reply.Msg,
+			)
+		}
+	}
+}
+
+func BenchmarkSyncMassive(b *testing.B) {
+	onceEcho.Do(setupEchoServer)
+
+	addr := fmt.Sprintf("%s:%d", echoHost, echoPort)
+	echoClient, err := DialEchoService("tcp", addr)
+	if err != nil {
+		b.Fatalf(
+			`net.Dial("tcp", "%s:%d"): %v`,
+			echoHost, echoPort,
+			err,
+		)
+	}
+	defer echoClient.Close()
+
+	b.ResetTimer()
+	for i := 0; i < b.N; i++ {
+		var args EchoRequest
+		var reply *EchoResponse
+
+		// EchoService.EchoTwice
+		args.Msg = echoMassiveRequest + "abc"
+		reply, err = echoClient.EchoTwice(&args)
+		if err != nil {
+			b.Fatalf(`EchoService.EchoTwice: %v`, err)
+		}
+		if reply.Msg != args.Msg+args.Msg {
+			got := reply.Msg
+			if len(got) > 8 {
+				got = got[:8] + "..."
+			}
+			b.Fatalf(`EchoService.EchoTwice: len = %d, got = %v`,
+				len(reply.Msg), got,
+			)
+		}
+
+		// EchoService.EchoTwice
+		args.Msg = echoMassiveRequest + "你好, 世界"
+		reply, err = echoClient.EchoTwice(&args)
+		if err != nil {
+			b.Fatalf(`EchoService.EchoTwice: %v`, err)
+		}
+		if reply.Msg != args.Msg+args.Msg {
+			got := reply.Msg
+			if len(got) > 8 {
+				got = got[:8] + "..."
+			}
+			b.Fatalf(`EchoService.EchoTwice: len = %d, got = %v`,
+				len(reply.Msg), got,
+			)
+		}
+
+		// EchoService.EchoTwice
+		args.Msg = echoMassiveRequest + "Hello, 世界"
+		reply, err = echoClient.EchoTwice(&args)
+		if err != nil {
+			b.Fatalf(`EchoService.EchoTwice: %v`, err)
+		}
+		if reply.Msg != args.Msg+args.Msg {
+			got := reply.Msg
+			if len(got) > 8 {
+				got = got[:8] + "..."
+			}
+			b.Fatalf(`EchoService.EchoTwice: len = %d, got = %v`,
+				len(reply.Msg), got,
+			)
+		}
+	}
+}
+
+func BenchmarkAsyncEcho(b *testing.B) {
+	onceEcho.Do(setupEchoServer)
+
+	addr := fmt.Sprintf("%s:%d", echoHost, echoPort)
+	client, err := DialEchoService("tcp", addr)
+	if err != nil {
+		b.Fatalf(
+			`net.Dial("tcp", "%s:%d"): %v`,
+			echoHost, echoPort,
+			err,
+		)
+	}
+	defer client.Close()
+
+	b.ResetTimer()
+	for i := 0; i < b.N; i++ {
+		var args1 EchoRequest
+		var reply1 EchoResponse
+		var args2 EchoRequest
+		var reply2 EchoResponse
+		var args3 EchoRequest
+		var reply3 EchoResponse
+
+		// EchoService.EchoTwice
+		args1.Msg = "abc"
+		call1 := client.Go("EchoService.EchoTwice", &args1, &reply1, nil)
+		args2.Msg = "你好, 世界"
+		call2 := client.Go("EchoService.EchoTwice", &args2, &reply2, nil)
+		args3.Msg = "Hello, 世界"
+		call3 := client.Go("EchoService.EchoTwice", &args3, &reply3, nil)
+
+		call1 = <-call1.Done
+		call2 = <-call2.Done
+		call3 = <-call3.Done
+
+		// call1
+		if call1.Error != nil {
+			b.Fatalf(`EchoService.EchoTwice: %v`, call1.Error)
+		}
+		if call1.Reply.(*EchoResponse).Msg != args1.Msg+args1.Msg {
+			b.Fatalf(
+				`EchoService.EchoTwice: expected = "%s", got = "%s"`,
+				args1.Msg+args1.Msg,
+				call1.Reply.(*EchoResponse).Msg,
+			)
+		}
+
+		// call2
+		if call2.Error != nil {
+			b.Fatalf(`EchoService.EchoTwice: %v`, call2.Error)
+		}
+		if call2.Reply.(*EchoResponse).Msg != args2.Msg+args2.Msg {
+			b.Fatalf(
+				`EchoService.EchoTwice: expected = "%s", got = "%s"`,
+				args2.Msg+args2.Msg,
+				call2.Reply.(*EchoResponse).Msg,
+			)
+		}
+
+		// call3
+		if call3.Error != nil {
+			b.Fatalf(`EchoService.EchoTwice: %v`, call3.Error)
+		}
+		if call3.Reply.(*EchoResponse).Msg != args3.Msg+args3.Msg {
+			b.Fatalf(
+				`EchoService.EchoTwice: expected = "%s", got = "%s"`,
+				args3.Msg+args3.Msg,
+				call3.Reply.(*EchoResponse).Msg,
+			)
+		}
+	}
+}
+
+func BenchmarkAsyncMassive(b *testing.B) {
+	onceEcho.Do(setupEchoServer)
+
+	addr := fmt.Sprintf("%s:%d", echoHost, echoPort)
+	client, err := DialEchoService("tcp", addr)
+	if err != nil {
+		b.Fatalf(
+			`net.Dial("tcp", "%s:%d"): %v`,
+			echoHost, echoPort,
+			err,
+		)
+	}
+	defer client.Close()
+
+	b.ResetTimer()
+	for i := 0; i < b.N; i++ {
+		var args1 EchoRequest
+		var reply1 EchoResponse
+		var args2 EchoRequest
+		var reply2 EchoResponse
+		var args3 EchoRequest
+		var reply3 EchoResponse
+
+		// EchoService.EchoTwice
+		args1.Msg = echoMassiveRequest + "abc"
+		call1 := client.Go("EchoService.EchoTwice", &args1, &reply1, nil)
+		args2.Msg = echoMassiveRequest + "你好, 世界"
+		call2 := client.Go("EchoService.EchoTwice", &args2, &reply2, nil)
+		args3.Msg = echoMassiveRequest + "Hello, 世界"
+		call3 := client.Go("EchoService.EchoTwice", &args3, &reply3, nil)
+
+		call1 = <-call1.Done
+		call2 = <-call2.Done
+		call3 = <-call3.Done
+
+		// call1
+		if call1.Error != nil {
+			b.Fatalf(`EchoService.EchoTwice: %v`, call1.Error)
+		}
+		if call1.Reply.(*EchoResponse).Msg != args1.Msg+args1.Msg {
+			got := call1.Reply.(*EchoResponse).Msg
+			if len(got) > 8 {
+				got = got[:8] + "..."
+			}
+			b.Fatalf(`EchoService.EchoTwice: len = %d, got = %v`,
+				len(call1.Reply.(*EchoResponse).Msg), got,
+			)
+		}
+
+		// call2
+		if call2.Error != nil {
+			b.Fatalf(`EchoService.EchoTwice: %v`, call2.Error)
+		}
+		if call2.Reply.(*EchoResponse).Msg != args2.Msg+args2.Msg {
+			got := call2.Reply.(*EchoResponse).Msg
+			if len(got) > 8 {
+				got = got[:8] + "..."
+			}
+			b.Fatalf(`EchoService.EchoTwice: len = %d, got = %v`,
+				len(call2.Reply.(*EchoResponse).Msg), got,
+			)
+		}
+
+		// call3
+		if call3.Error != nil {
+			b.Fatalf(`EchoService.EchoTwice: %v`, call3.Error)
+		}
+		if call3.Reply.(*EchoResponse).Msg != args3.Msg+args3.Msg {
+			got := call3.Reply.(*EchoResponse).Msg
+			if len(got) > 8 {
+				got = got[:8] + "..."
+			}
+			b.Fatalf(`EchoService.EchoTwice: len = %d, got = %v`,
+				len(call3.Reply.(*EchoResponse).Msg), got,
+			)
+		}
+	}
+}

core/protorpc/examples/service.pb/proto.go

@@ -0,0 +1,8 @@
+// Copyright 2014 <chaishushan{AT}gmail.com>. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+//go:generate protoc --go_out=. arith.proto echo.proto
+//go:generate protoc --protorpc_out=. arith.proto echo.proto
+
+package service

core/protorpc/examples/stdrpc.pb/Makefile

@@ -0,0 +1,13 @@
+# Copyright 2013 <chaishushan{AT}gmail.com>. All rights reserved.
+# Use of this source code is governed by a BSD-style
+# license that can be found in the LICENSE file.
+
+PROTO_FILES=$(sort $(wildcard ./*.proto))
+
+default: $(PROTO_FILES) Makefile
+	go install github.com/golang/protobuf/protoc-gen-go
+	go install github.com/chai2010/protorpc/protoc-gen-stdrpc
+	protoc --stdrpc_out=. ${PROTO_FILES}
+	go test
+
+clean:

core/protorpc/examples/stdrpc.pb/arith.pb.go

@@ -0,0 +1,401 @@
+// Code generated by protoc-gen-go. DO NOT EDIT.
+// source: arith.proto
+
+/*
+Package service is a generated protocol buffer package.
+
+It is generated from these files:
+	arith.proto
+	echo.proto
+
+It has these top-level messages:
+	ArithRequest
+	ArithResponse
+	EchoRequest
+	EchoResponse
+*/
+package service
+
+import proto "github.com/golang/protobuf/proto"
+import fmt "fmt"
+import math "math"
+
+import "bufio"
+import "crypto/tls"
+import "errors"
+import "io"
+import "log"
+import "net"
+import "net/http"
+import "net/rpc"
+import "time"
+
+// Reference imports to suppress errors if they are not otherwise used.
+var _ = proto.Marshal
+var _ = fmt.Errorf
+var _ = math.Inf
+
+// This is a compile-time assertion to ensure that this generated file
+// is compatible with the proto package it is being compiled against.
+// A compilation error at this line likely means your copy of the
+// proto package needs to be updated.
+const _ = proto.ProtoPackageIsVersion2 // please upgrade the proto package
+
+type ArithRequest struct {
+	A int32 `protobuf:"varint,1,opt,name=a" json:"a,omitempty"`
+	B int32 `protobuf:"varint,2,opt,name=b" json:"b,omitempty"`
+}
+
+func (m *ArithRequest) Reset()                    { *m = ArithRequest{} }
+func (m *ArithRequest) String() string            { return proto.CompactTextString(m) }
+func (*ArithRequest) ProtoMessage()               {}
+func (*ArithRequest) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{0} }
+
+func (m *ArithRequest) GetA() int32 {
+	if m != nil {
+		return m.A
+	}
+	return 0
+}
+
+func (m *ArithRequest) GetB() int32 {
+	if m != nil {
+		return m.B
+	}
+	return 0
+}
+
+type ArithResponse struct {
+	C int32 `protobuf:"varint,1,opt,name=c" json:"c,omitempty"`
+}
+
+func (m *ArithResponse) Reset()                    { *m = ArithResponse{} }
+func (m *ArithResponse) String() string            { return proto.CompactTextString(m) }
+func (*ArithResponse) ProtoMessage()               {}
+func (*ArithResponse) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{1} }
+
+func (m *ArithResponse) GetC() int32 {
+	if m != nil {
+		return m.C
+	}
+	return 0
+}
+
+func init() {
+	proto.RegisterType((*ArithRequest)(nil), "service.ArithRequest")
+	proto.RegisterType((*ArithResponse)(nil), "service.ArithResponse")
+}
+
+type ArithService interface {
+	Add(in *ArithRequest, out *ArithResponse) error
+	Mul(in *ArithRequest, out *ArithResponse) error
+	Div(in *ArithRequest, out *ArithResponse) error
+	Error(in *ArithRequest, out *ArithResponse) error
+}
+
+// AcceptArithServiceClient accepts connections on the listener and serves requests
+// for each incoming connection.  Accept blocks; the caller typically
+// invokes it in a go statement.
+func AcceptArithServiceClient(lis net.Listener, x ArithService) {
+	srv := rpc.NewServer()
+	if err := srv.RegisterName("service.ArithService", x); err != nil {
+		log.Fatal(err)
+	}
+
+	for {
+		conn, err := lis.Accept()
+		if err != nil {
+			log.Fatalf("lis.Accept(): %v\n", err)
+		}
+		go srv.ServeConn(conn)
+	}
+}
+
+// RegisterArithService publish the given ArithService implementation on the server.
+func RegisterArithService(srv *rpc.Server, x ArithService) error {
+	if err := srv.RegisterName("service.ArithService", x); err != nil {
+		return err
+	}
+	return nil
+}
+
+// NewArithServiceServer returns a new ArithService Server.
+func NewArithServiceServer(x ArithService) *rpc.Server {
+	srv := rpc.NewServer()
+	if err := srv.RegisterName("service.ArithService", x); err != nil {
+		log.Fatal(err)
+	}
+	return srv
+}
+
+// ListenAndServeArithService listen announces on the local network address laddr
+// and serves the given ArithService implementation.
+func ListenAndServeArithService(network, addr string, x ArithService) error {
+	lis, err := net.Listen(network, addr)
+	if err != nil {
+		return err
+	}
+	defer lis.Close()
+
+	srv := rpc.NewServer()
+	if err := srv.RegisterName("service.ArithService", x); err != nil {
+		return err
+	}
+
+	for {
+		conn, err := lis.Accept()
+		if err != nil {
+			log.Fatalf("lis.Accept(): %v\n", err)
+		}
+		go srv.ServeConn(conn)
+	}
+}
+
+// ServeArithService serves the given ArithService implementation.
+func ServeArithService(conn io.ReadWriteCloser, x ArithService) {
+	srv := rpc.NewServer()
+	if err := srv.RegisterName("service.ArithService", x); err != nil {
+		log.Fatal(err)
+	}
+	srv.ServeConn(conn)
+}
+
+type ArithServiceClient struct {
+	*rpc.Client
+}
+
+// NewArithServiceClient returns a ArithService stub to handle
+// requests to the set of ArithService at the other end of the connection.
+func NewArithServiceClient(conn io.ReadWriteCloser) *ArithServiceClient {
+	c := rpc.NewClient(conn)
+	return &ArithServiceClient{c}
+}
+
+func (c *ArithServiceClient) Add(in *ArithRequest) (out *ArithResponse, err error) {
+	if in == nil {
+		in = new(ArithRequest)
+	}
+	type Validator interface {
+		Validate() error
+	}
+	if x, ok := proto.Message(in).(Validator); ok {
+		if err := x.Validate(); err != nil {
+			return nil, err
+		}
+	}
+	out = new(ArithResponse)
+	if err = c.Call("service.ArithService.Add", in, out); err != nil {
+		return nil, err
+	}
+	if x, ok := proto.Message(out).(Validator); ok {
+		if err := x.Validate(); err != nil {
+			return out, err
+		}
+	}
+	return out, nil
+}
+
+func (c *ArithServiceClient) AsyncAdd(in *ArithRequest, out *ArithResponse, done chan *rpc.Call) *rpc.Call {
+	if in == nil {
+		in = new(ArithRequest)
+	}
+	return c.Go(
+		"service.ArithService.Add",
+		in, out,
+		done,
+	)
+}
+
+func (c *ArithServiceClient) Mul(in *ArithRequest) (out *ArithResponse, err error) {
+	if in == nil {
+		in = new(ArithRequest)
+	}
+	type Validator interface {
+		Validate() error
+	}
+	if x, ok := proto.Message(in).(Validator); ok {
+		if err := x.Validate(); err != nil {
+			return nil, err
+		}
+	}
+	out = new(ArithResponse)
+	if err = c.Call("service.ArithService.Mul", in, out); err != nil {
+		return nil, err
+	}
+	if x, ok := proto.Message(out).(Validator); ok {
+		if err := x.Validate(); err != nil {
+			return out, err
+		}
+	}
+	return out, nil
+}
+
+func (c *ArithServiceClient) AsyncMul(in *ArithRequest, out *ArithResponse, done chan *rpc.Call) *rpc.Call {
+	if in == nil {
+		in = new(ArithRequest)
+	}
+	return c.Go(
+		"service.ArithService.Mul",
+		in, out,
+		done,
+	)
+}
+
+func (c *ArithServiceClient) Div(in *ArithRequest) (out *ArithResponse, err error) {
+	if in == nil {
+		in = new(ArithRequest)
+	}
+	type Validator interface {
+		Validate() error
+	}
+	if x, ok := proto.Message(in).(Validator); ok {
+		if err := x.Validate(); err != nil {
+			return nil, err
+		}
+	}
+	out = new(ArithResponse)
+	if err = c.Call("service.ArithService.Div", in, out); err != nil {
+		return nil, err
+	}
+	if x, ok := proto.Message(out).(Validator); ok {
+		if err := x.Validate(); err != nil {
+			return out, err
+		}
+	}
+	return out, nil
+}
+
+func (c *ArithServiceClient) AsyncDiv(in *ArithRequest, out *ArithResponse, done chan *rpc.Call) *rpc.Call {
+	if in == nil {
+		in = new(ArithRequest)
+	}
+	return c.Go(
+		"service.ArithService.Div",
+		in, out,
+		done,
+	)
+}
+
+func (c *ArithServiceClient) Error(in *ArithRequest) (out *ArithResponse, err error) {
+	if in == nil {
+		in = new(ArithRequest)
+	}
+	type Validator interface {
+		Validate() error
+	}
+	if x, ok := proto.Message(in).(Validator); ok {
+		if err := x.Validate(); err != nil {
+			return nil, err
+		}
+	}
+	out = new(ArithResponse)
+	if err = c.Call("service.ArithService.Error", in, out); err != nil {
+		return nil, err
+	}
+	if x, ok := proto.Message(out).(Validator); ok {
+		if err := x.Validate(); err != nil {
+			return out, err
+		}
+	}
+	return out, nil
+}
+
+func (c *ArithServiceClient) AsyncError(in *ArithRequest, out *ArithResponse, done chan *rpc.Call) *rpc.Call {
+	if in == nil {
+		in = new(ArithRequest)
+	}
+	return c.Go(
+		"service.ArithService.Error",
+		in, out,
+		done,
+	)
+}
+
+// DialArithService connects to an ArithService at the specified network address.
+func DialArithService(network, addr string) (*ArithServiceClient, error) {
+	c, err := rpc.Dial(network, addr)
+	if err != nil {
+		return nil, err
+	}
+	return &ArithServiceClient{c}, nil
+}
+
+// DialArithServiceTimeout connects to an ArithService at the specified network address.
+func DialArithServiceTimeout(network, addr string, timeout time.Duration) (*ArithServiceClient, error) {
+	conn, err := net.DialTimeout(network, addr, timeout)
+	if err != nil {
+		return nil, err
+	}
+	return &ArithServiceClient{rpc.NewClient(conn)}, nil
+}
+
+// DialArithServiceHTTP connects to an HTTP RPC server at the specified network address
+// listening on the default HTTP RPC path.
+func DialArithServiceHTTP(network, address string) (*ArithServiceClient, error) {
+	return DialArithServiceHTTPPath(network, address, rpc.DefaultRPCPath)
+}
+
+// DialArithServiceHTTPPath connects to an HTTP RPC server
+// at the specified network address and path.
+func DialArithServiceHTTPPath(network, address, path string) (*ArithServiceClient, error) {
+	conn, err := net.Dial(network, address)
+	if err != nil {
+		return nil, err
+	}
+	return dialArithServicePath(network, address, path, conn)
+}
+
+// DialArithServiceHTTPS connects to an HTTPS RPC server at the specified network address
+// listening on the default HTTP RPC path.
+func DialArithServiceHTTPS(network, address string, tlsConfig *tls.Config) (*ArithServiceClient, error) {
+	return DialArithServiceHTTPSPath(network, address, rpc.DefaultRPCPath, tlsConfig)
+}
+
+// DialArithServiceHTTPSPath connects to an HTTPS RPC server
+// at the specified network address and path.
+func DialArithServiceHTTPSPath(network, address, path string, tlsConfig *tls.Config) (*ArithServiceClient, error) {
+	conn, err := tls.Dial(network, address, tlsConfig)
+	if err != nil {
+		return nil, err
+	}
+	return dialArithServicePath(network, address, path, conn)
+}
+
+func dialArithServicePath(network, address, path string, conn net.Conn) (*ArithServiceClient, error) {
+	const net_rpc_connected = "200 Connected to Go RPC"
+
+	io.WriteString(conn, "CONNECT "+path+" HTTP/1.0\n\n")
+
+	// Require successful HTTP response
+	// before switching to RPC protocol.
+	resp, err := http.ReadResponse(bufio.NewReader(conn), &http.Request{Method: "CONNECT"})
+	if err == nil && resp.Status == net_rpc_connected {
+		return &ArithServiceClient{rpc.NewClient(conn)}, nil
+	}
+	if err == nil {
+		err = errors.New("unexpected HTTP response: " + resp.Status)
+	}
+	conn.Close()
+	return nil, &net.OpError{
+		Op:   "dial-http",
+		Net:  network + " " + address,
+		Addr: nil,
+		Err:  err,
+	}
+}
+
+func init() { proto.RegisterFile("arith.proto", fileDescriptor0) }
+
+var fileDescriptor0 = []byte{
+	// 159 bytes of a gzipped FileDescriptorProto
+	0x1f, 0x8b, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0xff, 0xe2, 0xe2, 0x4e, 0x2c, 0xca, 0x2c,
+	0xc9, 0xd0, 0x2b, 0x28, 0xca, 0x2f, 0xc9, 0x17, 0x62, 0x2f, 0x4e, 0x2d, 0x2a, 0xcb, 0x4c, 0x4e,
+	0x55, 0xd2, 0xe2, 0xe2, 0x71, 0x04, 0x89, 0x07, 0xa5, 0x16, 0x96, 0xa6, 0x16, 0x97, 0x08, 0xf1,
+	0x70, 0x31, 0x26, 0x4a, 0x30, 0x2a, 0x30, 0x6a, 0xb0, 0x06, 0x31, 0x26, 0x82, 0x78, 0x49, 0x12,
+	0x4c, 0x10, 0x5e, 0x92, 0x92, 0x2c, 0x17, 0x2f, 0x54, 0x6d, 0x71, 0x41, 0x7e, 0x5e, 0x71, 0x2a,
+	0x48, 0x3a, 0x19, 0xa6, 0x38, 0xd9, 0xe8, 0x05, 0x23, 0xd4, 0xac, 0x60, 0x88, 0xd9, 0x42, 0x26,
+	0x5c, 0xcc, 0x89, 0x29, 0x29, 0x42, 0xa2, 0x7a, 0x50, 0xcb, 0xf4, 0x90, 0x6d, 0x92, 0x12, 0x43,
+	0x17, 0x86, 0x1a, 0x6a, 0xc2, 0xc5, 0x9c, 0x5b, 0x9a, 0x43, 0x86, 0xae, 0x94, 0xcc, 0x32, 0x52,
+	0x75, 0x99, 0x71, 0xb1, 0xa6, 0x16, 0x15, 0xe5, 0x17, 0x91, 0xa8, 0x2f, 0x89, 0x0d, 0x1c, 0x8a,
+	0xc6, 0x80, 0x00, 0x00, 0x00, 0xff, 0xff, 0xa2, 0x62, 0xfd, 0xbd, 0x54, 0x01, 0x00, 0x00,
+}

core/protorpc/examples/stdrpc.pb/arith.proto

@@ -0,0 +1,23 @@
+// Copyright 2013 <chaishushan{AT}gmail.com>. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+syntax = "proto3";
+
+package service;
+
+message ArithRequest {
+	int32 a = 1;
+	int32 b = 2;
+}
+
+message ArithResponse {
+	int32 c = 1;
+}
+
+service ArithService {
+	rpc add (ArithRequest) returns (ArithResponse);
+	rpc mul (ArithRequest) returns (ArithResponse);
+	rpc div (ArithRequest) returns (ArithResponse);
+	rpc error (ArithRequest) returns (ArithResponse);
+}

core/protorpc/examples/stdrpc.pb/echo.pb.go

@@ -0,0 +1,301 @@
+// Code generated by protoc-gen-go. DO NOT EDIT.
+// source: echo.proto
+
+package service
+
+import proto "github.com/golang/protobuf/proto"
+import fmt "fmt"
+import math "math"
+
+import "bufio"
+import "crypto/tls"
+import "errors"
+import "io"
+import "log"
+import "net"
+import "net/http"
+import "net/rpc"
+import "time"
+
+// Reference imports to suppress errors if they are not otherwise used.
+var _ = proto.Marshal
+var _ = fmt.Errorf
+var _ = math.Inf
+
+type EchoRequest struct {
+	Msg string `protobuf:"bytes,1,opt,name=msg" json:"msg,omitempty"`
+}
+
+func (m *EchoRequest) Reset()                    { *m = EchoRequest{} }
+func (m *EchoRequest) String() string            { return proto.CompactTextString(m) }
+func (*EchoRequest) ProtoMessage()               {}
+func (*EchoRequest) Descriptor() ([]byte, []int) { return fileDescriptor1, []int{0} }
+
+func (m *EchoRequest) GetMsg() string {
+	if m != nil {
+		return m.Msg
+	}
+	return ""
+}
+
+type EchoResponse struct {
+	Msg string `protobuf:"bytes,1,opt,name=msg" json:"msg,omitempty"`
+}
+
+func (m *EchoResponse) Reset()                    { *m = EchoResponse{} }
+func (m *EchoResponse) String() string            { return proto.CompactTextString(m) }
+func (*EchoResponse) ProtoMessage()               {}
+func (*EchoResponse) Descriptor() ([]byte, []int) { return fileDescriptor1, []int{1} }
+
+func (m *EchoResponse) GetMsg() string {
+	if m != nil {
+		return m.Msg
+	}
+	return ""
+}
+
+func init() {
+	proto.RegisterType((*EchoRequest)(nil), "service.EchoRequest")
+	proto.RegisterType((*EchoResponse)(nil), "service.EchoResponse")
+}
+
+type EchoService interface {
+	Echo(in *EchoRequest, out *EchoResponse) error
+	EchoTwice(in *EchoRequest, out *EchoResponse) error
+}
+
+// AcceptEchoServiceClient accepts connections on the listener and serves requests
+// for each incoming connection.  Accept blocks; the caller typically
+// invokes it in a go statement.
+func AcceptEchoServiceClient(lis net.Listener, x EchoService) {
+	srv := rpc.NewServer()
+	if err := srv.RegisterName("service.EchoService", x); err != nil {
+		log.Fatal(err)
+	}
+
+	for {
+		conn, err := lis.Accept()
+		if err != nil {
+			log.Fatalf("lis.Accept(): %v\n", err)
+		}
+		go srv.ServeConn(conn)
+	}
+}
+
+// RegisterEchoService publish the given EchoService implementation on the server.
+func RegisterEchoService(srv *rpc.Server, x EchoService) error {
+	if err := srv.RegisterName("service.EchoService", x); err != nil {
+		return err
+	}
+	return nil
+}
+
+// NewEchoServiceServer returns a new EchoService Server.
+func NewEchoServiceServer(x EchoService) *rpc.Server {
+	srv := rpc.NewServer()
+	if err := srv.RegisterName("service.EchoService", x); err != nil {
+		log.Fatal(err)
+	}
+	return srv
+}
+
+// ListenAndServeEchoService listen announces on the local network address laddr
+// and serves the given EchoService implementation.
+func ListenAndServeEchoService(network, addr string, x EchoService) error {
+	lis, err := net.Listen(network, addr)
+	if err != nil {
+		return err
+	}
+	defer lis.Close()
+
+	srv := rpc.NewServer()
+	if err := srv.RegisterName("service.EchoService", x); err != nil {
+		return err
+	}
+
+	for {
+		conn, err := lis.Accept()
+		if err != nil {
+			log.Fatalf("lis.Accept(): %v\n", err)
+		}
+		go srv.ServeConn(conn)
+	}
+}
+
+// ServeEchoService serves the given EchoService implementation.
+func ServeEchoService(conn io.ReadWriteCloser, x EchoService) {
+	srv := rpc.NewServer()
+	if err := srv.RegisterName("service.EchoService", x); err != nil {
+		log.Fatal(err)
+	}
+	srv.ServeConn(conn)
+}
+
+type EchoServiceClient struct {
+	*rpc.Client
+}
+
+// NewEchoServiceClient returns a EchoService stub to handle
+// requests to the set of EchoService at the other end of the connection.
+func NewEchoServiceClient(conn io.ReadWriteCloser) *EchoServiceClient {
+	c := rpc.NewClient(conn)
+	return &EchoServiceClient{c}
+}
+
+func (c *EchoServiceClient) Echo(in *EchoRequest) (out *EchoResponse, err error) {
+	if in == nil {
+		in = new(EchoRequest)
+	}
+	type Validator interface {
+		Validate() error
+	}
+	if x, ok := proto.Message(in).(Validator); ok {
+		if err := x.Validate(); err != nil {
+			return nil, err
+		}
+	}
+	out = new(EchoResponse)
+	if err = c.Call("service.EchoService.Echo", in, out); err != nil {
+		return nil, err
+	}
+	if x, ok := proto.Message(out).(Validator); ok {
+		if err := x.Validate(); err != nil {
+			return out, err
+		}
+	}
+	return out, nil
+}
+
+func (c *EchoServiceClient) AsyncEcho(in *EchoRequest, out *EchoResponse, done chan *rpc.Call) *rpc.Call {
+	if in == nil {
+		in = new(EchoRequest)
+	}
+	return c.Go(
+		"service.EchoService.Echo",
+		in, out,
+		done,
+	)
+}
+
+func (c *EchoServiceClient) EchoTwice(in *EchoRequest) (out *EchoResponse, err error) {
+	if in == nil {
+		in = new(EchoRequest)
+	}
+	type Validator interface {
+		Validate() error
+	}
+	if x, ok := proto.Message(in).(Validator); ok {
+		if err := x.Validate(); err != nil {
+			return nil, err
+		}
+	}
+	out = new(EchoResponse)
+	if err = c.Call("service.EchoService.EchoTwice", in, out); err != nil {
+		return nil, err
+	}
+	if x, ok := proto.Message(out).(Validator); ok {
+		if err := x.Validate(); err != nil {
+			return out, err
+		}
+	}
+	return out, nil
+}
+
+func (c *EchoServiceClient) AsyncEchoTwice(in *EchoRequest, out *EchoResponse, done chan *rpc.Call) *rpc.Call {
+	if in == nil {
+		in = new(EchoRequest)
+	}
+	return c.Go(
+		"service.EchoService.EchoTwice",
+		in, out,
+		done,
+	)
+}
+
+// DialEchoService connects to an EchoService at the specified network address.
+func DialEchoService(network, addr string) (*EchoServiceClient, error) {
+	c, err := rpc.Dial(network, addr)
+	if err != nil {
+		return nil, err
+	}
+	return &EchoServiceClient{c}, nil
+}
+
+// DialEchoServiceTimeout connects to an EchoService at the specified network address.
+func DialEchoServiceTimeout(network, addr string, timeout time.Duration) (*EchoServiceClient, error) {
+	conn, err := net.DialTimeout(network, addr, timeout)
+	if err != nil {
+		return nil, err
+	}
+	return &EchoServiceClient{rpc.NewClient(conn)}, nil
+}
+
+// DialEchoServiceHTTP connects to an HTTP RPC server at the specified network address
+// listening on the default HTTP RPC path.
+func DialEchoServiceHTTP(network, address string) (*EchoServiceClient, error) {
+	return DialEchoServiceHTTPPath(network, address, rpc.DefaultRPCPath)
+}
+
+// DialEchoServiceHTTPPath connects to an HTTP RPC server
+// at the specified network address and path.
+func DialEchoServiceHTTPPath(network, address, path string) (*EchoServiceClient, error) {
+	conn, err := net.Dial(network, address)
+	if err != nil {
+		return nil, err
+	}
+	return dialEchoServicePath(network, address, path, conn)
+}
+
+// DialEchoServiceHTTPS connects to an HTTPS RPC server at the specified network address
+// listening on the default HTTP RPC path.
+func DialEchoServiceHTTPS(network, address string, tlsConfig *tls.Config) (*EchoServiceClient, error) {
+	return DialEchoServiceHTTPSPath(network, address, rpc.DefaultRPCPath, tlsConfig)
+}
+
+// DialEchoServiceHTTPSPath connects to an HTTPS RPC server
+// at the specified network address and path.
+func DialEchoServiceHTTPSPath(network, address, path string, tlsConfig *tls.Config) (*EchoServiceClient, error) {
+	conn, err := tls.Dial(network, address, tlsConfig)
+	if err != nil {
+		return nil, err
+	}
+	return dialEchoServicePath(network, address, path, conn)
+}
+
+func dialEchoServicePath(network, address, path string, conn net.Conn) (*EchoServiceClient, error) {
+	const net_rpc_connected = "200 Connected to Go RPC"
+
+	io.WriteString(conn, "CONNECT "+path+" HTTP/1.0\n\n")
+
+	// Require successful HTTP response
+	// before switching to RPC protocol.
+	resp, err := http.ReadResponse(bufio.NewReader(conn), &http.Request{Method: "CONNECT"})
+	if err == nil && resp.Status == net_rpc_connected {
+		return &EchoServiceClient{rpc.NewClient(conn)}, nil
+	}
+	if err == nil {
+		err = errors.New("unexpected HTTP response: " + resp.Status)
+	}
+	conn.Close()
+	return nil, &net.OpError{
+		Op:   "dial-http",
+		Net:  network + " " + address,
+		Addr: nil,
+		Err:  err,
+	}
+}
+
+func init() { proto.RegisterFile("echo.proto", fileDescriptor1) }
+
+var fileDescriptor1 = []byte{
+	// 134 bytes of a gzipped FileDescriptorProto
+	0x1f, 0x8b, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0xff, 0xe2, 0xe2, 0x4a, 0x4d, 0xce, 0xc8,
+	0xd7, 0x2b, 0x28, 0xca, 0x2f, 0xc9, 0x17, 0x62, 0x2f, 0x4e, 0x2d, 0x2a, 0xcb, 0x4c, 0x4e, 0x55,
+	0x92, 0xe7, 0xe2, 0x76, 0x4d, 0xce, 0xc8, 0x0f, 0x4a, 0x2d, 0x2c, 0x4d, 0x2d, 0x2e, 0x11, 0x12,
+	0xe0, 0x62, 0xce, 0x2d, 0x4e, 0x97, 0x60, 0x54, 0x60, 0xd4, 0xe0, 0x0c, 0x02, 0x31, 0x95, 0x14,
+	0xb8, 0x78, 0x20, 0x0a, 0x8a, 0x0b, 0xf2, 0xf3, 0x8a, 0x53, 0x31, 0x55, 0x18, 0xd5, 0x40, 0x8c,
+	0x08, 0x86, 0x98, 0x28, 0x64, 0xcc, 0xc5, 0x02, 0xe2, 0x0a, 0x89, 0xe8, 0x41, 0xed, 0xd0, 0x43,
+	0xb2, 0x40, 0x4a, 0x14, 0x4d, 0x14, 0x6a, 0xaa, 0x05, 0x17, 0x27, 0x88, 0x1f, 0x52, 0x0e, 0x32,
+	0x81, 0x14, 0x9d, 0x49, 0x6c, 0x60, 0x0f, 0x19, 0x03, 0x02, 0x00, 0x00, 0xff, 0xff, 0x00, 0xc1,
+	0xd4, 0xbd, 0xde, 0x00, 0x00, 0x00,
+}

core/protorpc/examples/stdrpc.pb/echo.proto

@@ -0,0 +1,20 @@
+// Copyright 2013 <chaishushan{AT}gmail.com>. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+syntax = "proto3";
+
+package service;
+
+message EchoRequest {
+	string msg = 1;
+}
+
+message EchoResponse {
+	string msg = 1;
+}
+
+service EchoService {
+	rpc Echo (EchoRequest) returns (EchoResponse);
+	rpc EchoTwice (EchoRequest) returns (EchoResponse);
+}

core/protorpc/go.mod

@@ -0,0 +1,11 @@
+// Copyright 2021 <chaishushan{AT}gmail.com>. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+module github.com/chai2010/protorpc
+
+go 1.23
+
+require github.com/golang/protobuf v1.5.4
+
+require google.golang.org/protobuf v1.36.6 // indirect

core/protorpc/hello.go

@@ -0,0 +1,62 @@
+// Copyright 2014 <chaishushan{AT}gmail.com>. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build ingore
+
+package main
+
+import (
+	"fmt"
+	"log"
+
+	"github.com/chai2010/protorpc"
+	service "github.com/chai2010/protorpc/examples/service.pb"
+)
+
+type Echo int
+
+func (t *Echo) Echo(args *service.EchoRequest, reply *service.EchoResponse) error {
+	reply.Msg = args.Msg
+	return nil
+}
+
+func (t *Echo) EchoTwice(args *service.EchoRequest, reply *service.EchoResponse) error {
+	reply.Msg = args.Msg + args.Msg
+	return nil
+}
+
+func init() {
+	go service.ListenAndServeEchoService("tcp", `127.0.0.1:9527`, new(Echo))
+}
+
+func main() {
+	echoClient, err := service.DialEchoService("tcp", `127.0.0.1:9527`)
+	if err != nil {
+		log.Fatalf("service.DialEchoService: %v", err)
+	}
+	defer echoClient.Close()
+
+	args := &service.EchoRequest{Msg: "你好, 世界!"}
+	reply, err := echoClient.EchoTwice(args)
+	if err != nil {
+		log.Fatalf("echoClient.EchoTwice: %v", err)
+	}
+	fmt.Println(reply.Msg)
+
+	// or use normal client
+	client, err := protorpc.Dial("tcp", `127.0.0.1:9527`)
+	if err != nil {
+		log.Fatalf("protorpc.Dial: %v", err)
+	}
+	defer client.Close()
+
+	echoClient1 := &service.EchoServiceClient{client}
+	echoClient2 := &service.EchoServiceClient{client}
+	reply, err = echoClient1.EchoTwice(args)
+	reply, err = echoClient2.EchoTwice(args)
+	_, _ = reply, err
+
+	// Output:
+	// 你好, 世界!你好, 世界!
+}

core/protorpc/hello2.go

@@ -0,0 +1,65 @@
+// Copyright 2014 <chaishushan{AT}gmail.com>. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build ingore
+
+package main
+
+import (
+	"fmt"
+	"log"
+	"net/rpc"
+	"time"
+
+	stdrpc "github.com/chai2010/protorpc/examples/stdrpc.pb"
+)
+
+type Echo int
+
+func (t *Echo) Echo(args *stdrpc.EchoRequest, reply *stdrpc.EchoResponse) error {
+	reply.Msg = args.Msg
+	return nil
+}
+
+func (t *Echo) EchoTwice(args *stdrpc.EchoRequest, reply *stdrpc.EchoResponse) error {
+	reply.Msg = args.Msg + args.Msg
+	return nil
+}
+
+func init() {
+	go stdrpc.ListenAndServeEchoService("tcp", `127.0.0.1:9527`, new(Echo))
+}
+
+func main() {
+	time.Sleep(time.Second)
+
+	echoClient, err := stdrpc.DialEchoService("tcp", `127.0.0.1:9527`)
+	if err != nil {
+		log.Fatalf("stdrpc.DialEchoService: %v", err)
+	}
+	defer echoClient.Close()
+
+	args := &stdrpc.EchoRequest{Msg: "你好, 世界!"}
+	reply, err := echoClient.EchoTwice(args)
+	if err != nil {
+		log.Fatalf("echoClient.EchoTwice: %v", err)
+	}
+	fmt.Println(reply.Msg)
+
+	// or use normal client
+	client, err := rpc.Dial("tcp", `127.0.0.1:9527`)
+	if err != nil {
+		log.Fatalf("rpc.Dial: %v", err)
+	}
+	defer client.Close()
+
+	echoClient1 := &stdrpc.EchoServiceClient{client}
+	echoClient2 := &stdrpc.EchoServiceClient{client}
+	reply, err = echoClient1.EchoTwice(args)
+	reply, err = echoClient2.EchoTwice(args)
+	_, _ = reply, err
+
+	// Output:
+	// 你好, 世界!你好, 世界!
+}

core/protorpc/protoc-gen-plugin/generator.go

@@ -0,0 +1,52 @@
+// Copyright 2017 <chaishushan{AT}gmail.com>. All rights reserved.
+// Use of this source code is governed by a Apache
+// license that can be found in the LICENSE file.
+
+package plugin
+
+import (
+	"github.com/golang/protobuf/protoc-gen-go/descriptor"
+	"github.com/golang/protobuf/protoc-gen-go/generator"
+)
+
+var pkgCodeGeneratorList []CodeGenerator
+
+type CodeGenerator interface {
+	Name() string
+	FileNameExt() string
+
+	HeaderCode(g *generator.Generator, file *generator.FileDescriptor) string
+	ServiceCode(g *generator.Generator, file *generator.FileDescriptor, svc *descriptor.ServiceDescriptorProto) string
+	MessageCode(g *generator.Generator, file *generator.FileDescriptor, msg *descriptor.DescriptorProto) string
+}
+
+func RegisterCodeGenerator(g CodeGenerator) {
+	pkgCodeGeneratorList = append(pkgCodeGeneratorList, g)
+}
+
+func getAllCodeGenerator() []CodeGenerator {
+	return pkgCodeGeneratorList
+}
+
+func getAllServiceGeneratorNames() (names []string) {
+	for _, g := range pkgCodeGeneratorList {
+		names = append(names, g.Name())
+	}
+	return
+}
+
+func getFirstServiceGeneratorName() string {
+	if len(pkgCodeGeneratorList) > 0 {
+		return pkgCodeGeneratorList[0].Name()
+	}
+	return ""
+}
+
+func getCodeGenerator(name string) CodeGenerator {
+	for _, g := range pkgCodeGeneratorList {
+		if g.Name() == name {
+			return g
+		}
+	}
+	return nil
+}

core/protorpc/protoc-gen-plugin/main.go

@@ -0,0 +1,115 @@
+// Copyright 2017 <chaishushan{AT}gmail.com>. All rights reserved.
+// Use of this source code is governed by a Apache
+// license that can be found in the LICENSE file.
+
+package plugin
+
+import (
+	"io/ioutil"
+	"log"
+	"os"
+	"strings"
+
+	"github.com/golang/protobuf/proto"
+	"github.com/golang/protobuf/protoc-gen-go/generator"
+)
+
+func Main() {
+	mainPlugin := new(mainPlugin)
+	generator.RegisterPlugin(mainPlugin)
+
+	// Begin by allocating a generator. The request and response structures are stored there
+	// so we can do error handling easily - the response structure contains the field to
+	// report failure.
+	g := generator.New()
+	if len(getAllCodeGenerator()) == 0 {
+		g.Fail("no code generator plugin")
+	}
+
+	pkgReadRequetFromStdin(g)
+	pkgGenerateAllFiles(g, mainPlugin)
+	pkgWriteResponseToStdout(g)
+}
+
+func pkgGenerateAllFiles(g *generator.Generator, plugin *mainPlugin) {
+	// set default plugins
+	// protoc --xxx_out=. x.proto
+	plugin.InitService(pkgGetUserPlugin(g))
+
+	// parse command line parameters
+	g.CommandLineParameters("plugins=" + plugin.Name())
+
+	// Create a wrapped version of the Descriptors and EnumDescriptors that
+	// point to the file that defines them.
+	g.WrapTypes()
+
+	g.SetPackageNames()
+	g.BuildTypeNameMap()
+
+	g.GenerateAllFiles()
+
+	// skip non *.pb.xxx.go
+	respFileList := g.Response.File[:0]
+	for _, file := range g.Response.File {
+		fileName := file.GetName()
+		extName := plugin.FileNameExt()
+
+		if strings.HasSuffix(fileName, extName) {
+			respFileList = append(respFileList, file)
+		}
+	}
+	g.Response.File = respFileList
+}
+
+func pkgReadRequetFromStdin(g *generator.Generator) {
+	data, err := ioutil.ReadAll(os.Stdin)
+	if err != nil {
+		g.Error(err, "reading input")
+	}
+
+	if err := proto.Unmarshal(data, g.Request); err != nil {
+		g.Error(err, "parsing input proto")
+	}
+
+	if len(g.Request.FileToGenerate) == 0 {
+		g.Fail("no files to generate")
+	}
+}
+
+func pkgWriteResponseToStdout(g *generator.Generator) {
+	data, err := proto.Marshal(g.Response)
+	if err != nil {
+		g.Error(err, "failed to marshal output proto")
+	}
+	_, err = os.Stdout.Write(data)
+	if err != nil {
+		g.Error(err, "failed to write output proto")
+	}
+}
+
+func pkgGetUserPlugin(g *generator.Generator) CodeGenerator {
+	args := g.Request.GetParameter()
+	userPluginName := pkgGetParameterValue(args, "plugin")
+	if userPluginName == "" {
+		userPluginName = getFirstServiceGeneratorName()
+	}
+
+	userPlugin := getCodeGenerator(userPluginName)
+	if userPlugin == nil {
+		log.Print("protoc-gen-plugin: registor plugins:", getAllServiceGeneratorNames())
+		g.Fail("invalid plugin option:", userPluginName)
+	}
+
+	return userPlugin
+}
+
+func pkgGetParameterValue(parameter, key string) string {
+	for _, p := range strings.Split(parameter, ",") {
+		if i := strings.Index(p, "="); i > 0 {
+			if p[0:i] == key {
+				return p[i+1:]
+			}
+		}
+	}
+	return ""
+}

core/protorpc/protoc-gen-plugin/main_plugin.go

@@ -0,0 +1,119 @@
+// Copyright 2017 <chaishushan{AT}gmail.com>. All rights reserved.
+// Use of this source code is governed by a Apache
+// license that can be found in the LICENSE file.
+
+package plugin
+
+import (
+	"bytes"
+	"fmt"
+	"go/format"
+	"path"
+	"strings"
+
+	"github.com/golang/protobuf/proto"
+	"github.com/golang/protobuf/protoc-gen-go/generator"
+	plugin "github.com/golang/protobuf/protoc-gen-go/plugin"
+)
+
+// mainPlugin produce the Service interface.
+type mainPlugin struct {
+	*generator.Generator
+	CodeGenerator
+}
+
+// Name returns the name of the plugin.
+func (p *mainPlugin) Name() string { return "main-plugin" }
+
+// Init is called once after data structures are built but before
+// code generation begins.
+func (p *mainPlugin) Init(g *generator.Generator) {
+	p.Generator = g
+}
+
+func (p *mainPlugin) InitService(g CodeGenerator) {
+	p.CodeGenerator = g
+}
+
+// Generate produces the code generated by the plugin for this file.
+func (p *mainPlugin) GenerateImports(file *generator.FileDescriptor) {
+	// skip
+}
+
+// Generate generates the Service interface.
+// rpc service can't handle other proto message!!!
+func (p *mainPlugin) Generate(file *generator.FileDescriptor) {
+	if !p.isFileNeedGenerate(file) {
+		return
+	}
+
+	var buf bytes.Buffer
+	fmt.Fprintln(&buf, p.HeaderCode(p.Generator, file))
+
+	for _, msg := range file.MessageType {
+		fmt.Fprintln(&buf, p.MessageCode(p.Generator, file, msg))
+	}
+
+	for _, svc := range file.Service {
+		fmt.Fprintln(&buf, p.ServiceCode(p.Generator, file, svc))
+	}
+
+	fileContent := buf.String()
+	if code, err := format.Source(buf.Bytes()); err == nil {
+		fileContent = string(code)
+	}
+
+	p.Generator.Response.File = append(p.Generator.Response.File, &plugin.CodeGeneratorResponse_File{
+		Name:    proto.String(p.goFileName(file)),
+		Content: proto.String(fileContent),
+	})
+}
+
+func (p *mainPlugin) isFileNeedGenerate(file *generator.FileDescriptor) bool {
+	for _, v := range p.Generator.Request.FileToGenerate {
+		if v == file.GetName() {
+			return true
+		}
+	}
+	return false
+}
+
+func (p *mainPlugin) goFileName(file *generator.FileDescriptor) string {
+	name := *file.Name
+	if ext := path.Ext(name); ext == ".proto" || ext == ".protodevel" {
+		name = name[:len(name)-len(ext)]
+	}
+	name += p.FileNameExt()
+
+	// Does the file have a "go_package" option?
+	// If it does, it may override the filename.
+	if impPath, _, ok := p.goPackageOption(file); ok && impPath != "" {
+		// Replace the existing dirname with the declared import path.
+		_, name = path.Split(name)
+		name = path.Join(impPath, name)
+		return name
+	}
+
+	return name
+}
+
+func (p *mainPlugin) goPackageOption(file *generator.FileDescriptor) (impPath, pkg string, ok bool) {
+	pkg = file.GetOptions().GetGoPackage()
+	if pkg == "" {
+		return
+	}
+	ok = true
+	// The presence of a slash implies there's an import path.
+	slash := strings.LastIndex(pkg, "/")
+	if slash < 0 {
+		return
+	}
+	impPath, pkg = pkg, pkg[slash+1:]
+	// A semicolon-delimited suffix overrides the package name.
+	sc := strings.IndexByte(impPath, ';')
+	if sc < 0 {
+		return
+	}
+	impPath, pkg = impPath[:sc], impPath[sc+1:]
+	return
+}

core/protorpc/protoc-gen-protorpc/env.go

@@ -0,0 +1,7 @@
+// Copyright 2013 <chaishushan{AT}gmail.com>. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package main
+
+const ENV_PROTOC_GEN_PROTORPC_FLAG_PREFIX = "ENV_PROTOC_GEN_PROTORPC_FLAG_PREFIX"

core/protorpc/protoc-gen-protorpc/main.go

@@ -0,0 +1,381 @@
+// Copyright 2018 <chaishushan{AT}gmail.com>. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package main
+
+import (
+	"bytes"
+	"log"
+	"os"
+	"text/template"
+
+	plugin "github.com/chai2010/protorpc/protoc-gen-plugin"
+	"github.com/golang/protobuf/protoc-gen-go/descriptor"
+	"github.com/golang/protobuf/protoc-gen-go/generator"
+)
+
+var flagPrefix = os.Getenv(ENV_PROTOC_GEN_PROTORPC_FLAG_PREFIX)
+
+func main() {
+	plugin.Main()
+}
+
+func init() {
+	plugin.RegisterCodeGenerator(new(protorpcPlugin))
+}
+
+type protorpcPlugin struct{}
+
+func (p *protorpcPlugin) Name() string        { return "protorpc-go" }
+func (p *protorpcPlugin) FileNameExt() string { return ".pb.protorpc.go" }
+
+func (p *protorpcPlugin) HeaderCode(g *generator.Generator, file *generator.FileDescriptor) string {
+	const tmpl = `
+{{- $G := .G -}}
+{{- $File := .File -}}
+
+// Code generated by protoc-gen-protorpc. DO NOT EDIT.
+//
+// plugin: https://github.com/chai2010/protorpc/tree/master/protoc-gen-plugin
+// plugin: https://github.com/chai2010/protorpc/tree/master/protoc-gen-protorpc
+//
+// source: {{$File.GetName}}
+
+package {{$File.PackageName}}
+
+import (
+	"fmt"
+	"io"
+	"log"
+	"net"
+	"net/rpc"
+	"time"
+
+	"github.com/chai2010/protorpc"
+	"github.com/golang/protobuf/proto"
+)
+
+var (
+	_ = fmt.Sprint
+	_ = io.Reader(nil)
+	_ = log.Print
+	_ = net.Addr(nil)
+	_ = rpc.Call{}
+	_ = time.Second
+
+	_ = proto.String
+	_ = protorpc.Dial
+)
+`
+	var buf bytes.Buffer
+	t := template.Must(template.New("").Parse(tmpl))
+	err := t.Execute(&buf,
+		struct {
+			G      *generator.Generator
+			File   *generator.FileDescriptor
+			Prefix string
+		}{
+			G:      g,
+			File:   file,
+			Prefix: flagPrefix,
+		},
+	)
+	if err != nil {
+		log.Fatal(err)
+	}
+
+	return buf.String()
+}
+
+func (p *protorpcPlugin) ServiceCode(g *generator.Generator, file *generator.FileDescriptor, svc *descriptor.ServiceDescriptorProto) string {
+	var code string
+	code += p.genServiceInterface(g, file, svc)
+	code += p.genServiceServer(g, file, svc)
+	code += p.genServiceClient(g, file, svc)
+	return code
+}
+
+func (p *protorpcPlugin) MessageCode(g *generator.Generator, file *generator.FileDescriptor, msg *descriptor.DescriptorProto) string {
+	return ""
+}
+
+func (p *protorpcPlugin) genServiceInterface(
+	g *generator.Generator,
+	file *generator.FileDescriptor,
+	svc *descriptor.ServiceDescriptorProto,
+) string {
+	const serviceInterfaceTmpl = `
+type {{.Prefix}}{{.ServiceName}} interface {
+	{{.CallMethodList}}
+}
+`
+	const callMethodTmpl = `
+{{.MethodName}}(in *{{.ArgsType}}, out *{{.ReplyType}}) error`
+
+	// gen call method list
+	var callMethodList string
+	for _, m := range svc.Method {
+		out := bytes.NewBuffer([]byte{})
+		t := template.Must(template.New("").Parse(callMethodTmpl))
+		t.Execute(out, &struct {
+			Prefix      string
+			ServiceName string
+			MethodName  string
+			ArgsType    string
+			ReplyType   string
+		}{
+			Prefix:      flagPrefix,
+			ServiceName: generator.CamelCase(svc.GetName()),
+			MethodName:  generator.CamelCase(m.GetName()),
+			ArgsType:    g.TypeName(g.ObjectNamed(m.GetInputType())),
+			ReplyType:   g.TypeName(g.ObjectNamed(m.GetOutputType())),
+		})
+		callMethodList += out.String()
+
+		g.RecordTypeUse(m.GetInputType())
+		g.RecordTypeUse(m.GetOutputType())
+	}
+
+	// gen all interface code
+	{
+		out := bytes.NewBuffer([]byte{})
+		t := template.Must(template.New("").Parse(serviceInterfaceTmpl))
+		t.Execute(out, &struct {
+			Prefix         string
+			ServiceName    string
+			CallMethodList string
+		}{
+			Prefix:         flagPrefix,
+			ServiceName:    generator.CamelCase(svc.GetName()),
+			CallMethodList: callMethodList,
+		})
+
+		return out.String()
+	}
+}
+
+func (p *protorpcPlugin) genServiceServer(
+	g *generator.Generator,
+	file *generator.FileDescriptor,
+	svc *descriptor.ServiceDescriptorProto,
+) string {
+	const serviceHelperFunTmpl = `
+// {{.Prefix}}Accept{{.ServiceName}}Client accepts connections on the listener and serves requests
+// for each incoming connection.  Accept blocks; the caller typically
+// invokes it in a go statement.
+func {{.Prefix}}Accept{{.ServiceName}}Client(lis net.Listener, x {{.Prefix}}{{.ServiceName}}) {
+	srv := rpc.NewServer()
+	if err := srv.RegisterName("{{.ServiceRegisterName}}", x); err != nil {
+		log.Fatal(err)
+	}
+
+	for {
+		conn, err := lis.Accept()
+		if err != nil {
+			log.Fatalf("lis.Accept(): %v\n", err)
+		}
+		go srv.ServeCodec(protorpc.NewServerCodec(conn))
+	}
+}
+
+// {{.Prefix}}Register{{.ServiceName}} publish the given {{.Prefix}}{{.ServiceName}} implementation on the server.
+func {{.Prefix}}Register{{.ServiceName}}(srv *rpc.Server, x {{.Prefix}}{{.ServiceName}}) error {
+	if err := srv.RegisterName("{{.ServiceRegisterName}}", x); err != nil {
+		return err
+	}
+	return nil
+}
+
+// {{.Prefix}}New{{.ServiceName}}Server returns a new {{.Prefix}}{{.ServiceName}} Server.
+func {{.Prefix}}New{{.ServiceName}}Server(x {{.Prefix}}{{.ServiceName}}) *rpc.Server {
+	srv := rpc.NewServer()
+	if err := srv.RegisterName("{{.ServiceRegisterName}}", x); err != nil {
+		log.Fatal(err)
+	}
+	return srv
+}
+
+// {{.Prefix}}ListenAndServe{{.ServiceName}} listen announces on the local network address laddr
+// and serves the given {{.ServiceName}} implementation.
+func {{.Prefix}}ListenAndServe{{.ServiceName}}(network, addr string, x {{.Prefix}}{{.ServiceName}}) error {
+	lis, err := net.Listen(network, addr)
+	if err != nil {
+		return err
+	}
+	defer lis.Close()
+
+	srv := rpc.NewServer()
+	if err := srv.RegisterName("{{.ServiceRegisterName}}", x); err != nil {
+		return err
+	}
+
+	for {
+		conn, err := lis.Accept()
+		if err != nil {
+			log.Fatalf("lis.Accept(): %v\n", err)
+		}
+		go srv.ServeCodec(protorpc.NewServerCodec(conn))
+	}
+}
+
+// {{.Prefix}}Serve{{.ServiceName}} serves the given {{.Prefix}}{{.ServiceName}} implementation.
+func {{.Prefix}}Serve{{.ServiceName}}(conn io.ReadWriteCloser, x {{.Prefix}}{{.ServiceName}}) {
+	srv := rpc.NewServer()
+	if err := srv.RegisterName("{{.ServiceRegisterName}}", x); err != nil {
+		log.Fatal(err)
+	}
+	srv.ServeCodec(protorpc.NewServerCodec(conn))
+}
+`
+	{
+		out := bytes.NewBuffer([]byte{})
+		t := template.Must(template.New("").Parse(serviceHelperFunTmpl))
+		t.Execute(out, &struct {
+			Prefix              string
+			PackageName         string
+			ServiceName         string
+			ServiceRegisterName string
+		}{
+			Prefix:      flagPrefix,
+			PackageName: file.GetPackage(),
+			ServiceName: generator.CamelCase(svc.GetName()),
+			ServiceRegisterName: p.makeServiceRegisterName(
+				file, file.GetPackage(), generator.CamelCase(svc.GetName()),
+			),
+		})
+
+		return out.String()
+	}
+}
+
+func (p *protorpcPlugin) genServiceClient(
+	g *generator.Generator,
+	file *generator.FileDescriptor,
+	svc *descriptor.ServiceDescriptorProto,
+) string {
+	const clientHelperFuncTmpl = `
+type {{.Prefix}}{{.ServiceName}}Client struct {
+	*rpc.Client
+}
+
+// {{.Prefix}}New{{.ServiceName}}Client returns a {{.Prefix}}{{.ServiceName}} stub to handle
+// requests to the set of {{.Prefix}}{{.ServiceName}} at the other end of the connection.
+func {{.Prefix}}New{{.ServiceName}}Client(conn io.ReadWriteCloser) (*{{.Prefix}}{{.ServiceName}}Client) {
+	c := rpc.NewClientWithCodec(protorpc.NewClientCodec(conn))
+	return &{{.Prefix}}{{.ServiceName}}Client{c}
+}
+
+{{.MethodList}}
+
+// {{.Prefix}}Dial{{.ServiceName}} connects to an {{.Prefix}}{{.ServiceName}} at the specified network address.
+func {{.Prefix}}Dial{{.ServiceName}}(network, addr string) (*{{.Prefix}}{{.ServiceName}}Client, error) {
+	c, err := protorpc.Dial(network, addr)
+	if err != nil {
+		return nil, err
+	}
+	return &{{.Prefix}}{{.ServiceName}}Client{c}, nil
+}
+
+// {{.Prefix}}Dial{{.ServiceName}}Timeout connects to an {{.Prefix}}{{.ServiceName}} at the specified network address.
+func {{.Prefix}}Dial{{.ServiceName}}Timeout(network, addr string, timeout time.Duration) (*{{.Prefix}}{{.ServiceName}}Client, error) {
+	c, err := protorpc.DialTimeout(network, addr, timeout)
+	if err != nil {
+		return nil, err
+	}
+	return &{{.Prefix}}{{.ServiceName}}Client{c}, nil
+}
+`
+	const clientMethodTmpl = `
+func (c *{{.Prefix}}{{.ServiceName}}Client) {{.MethodName}}(in *{{.ArgsType}}) (out *{{.ReplyType}}, err error) {
+	if in == nil {
+		in = new({{.ArgsType}})
+	}
+
+	type Validator interface {
+		Validate() error
+	}
+	if x, ok := proto.Message(in).(Validator); ok {
+		if err := x.Validate(); err != nil {
+			return nil, err
+		}
+	}
+
+	out = new({{.ReplyType}})
+	if err = c.Call("{{.ServiceRegisterName}}.{{.MethodName}}", in, out); err != nil {
+		return nil, err
+	}
+
+	if x, ok := proto.Message(out).(Validator); ok {
+		if err := x.Validate(); err != nil {
+			return out, err
+		}
+	}
+
+	return out, nil
+}
+
+func (c *{{.Prefix}}{{.ServiceName}}Client) Async{{.MethodName}}(in *{{.ArgsType}}, out *{{.ReplyType}}, done chan *rpc.Call) *rpc.Call {
+	if in == nil {
+		in = new({{.ArgsType}})
+	}
+	return c.Go(
+		"{{.ServiceRegisterName}}.{{.MethodName}}",
+		in, out,
+		done,
+	)
+}
+`
+
+	// gen client method list
+	var methodList string
+	for _, m := range svc.Method {
+		out := bytes.NewBuffer([]byte{})
+		t := template.Must(template.New("").Parse(clientMethodTmpl))
+		t.Execute(out, &struct {
+			Prefix              string
+			ServiceName         string
+			ServiceRegisterName string
+			MethodName          string
+			ArgsType            string
+			ReplyType           string
+		}{
+			Prefix:      flagPrefix,
+			ServiceName: generator.CamelCase(svc.GetName()),
+			ServiceRegisterName: p.makeServiceRegisterName(
+				file, file.GetPackage(), generator.CamelCase(svc.GetName()),
+			),
+			MethodName: generator.CamelCase(m.GetName()),
+			ArgsType:   g.TypeName(g.ObjectNamed(m.GetInputType())),
+			ReplyType:  g.TypeName(g.ObjectNamed(m.GetOutputType())),
+		})
+		methodList += out.String()
+	}
+
+	// gen all client code
+	{
+		out := bytes.NewBuffer([]byte{})
+		t := template.Must(template.New("").Parse(clientHelperFuncTmpl))
+		t.Execute(out, &struct {
+			Prefix      string
+			PackageName string
+			ServiceName string
+			MethodList  string
+		}{
+			Prefix:      flagPrefix,
+			PackageName: file.GetPackage(),
+			ServiceName: generator.CamelCase(svc.GetName()),
+			MethodList:  methodList,
+		})
+
+		return out.String()
+	}
+}
+
+func (p *protorpcPlugin) makeServiceRegisterName(
+	file *generator.FileDescriptor,
+	packageName, serviceName string,
+) string {
+	// return packageName + "." + serviceName
+	return serviceName
+}

core/protorpc/protoc-gen-stdrpc/_main-ignore.go

@@ -0,0 +1,342 @@
+// Copyright 2018 <chaishushan{AT}gmail.com>. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package main
+
+import (
+	"bytes"
+	"log"
+	"text/template"
+
+	plugin "github.com/chai2010/protorpc/protoc-gen-plugin"
+	"github.com/golang/protobuf/protoc-gen-go/descriptor"
+	"github.com/golang/protobuf/protoc-gen-go/generator"
+)
+
+func main() {
+	plugin.Main()
+}
+
+func init() {
+	plugin.RegisterCodeGenerator(new(protorpcPlugin))
+}
+
+type protorpcPlugin struct{}
+
+func (p *protorpcPlugin) Name() string        { return "stdrpc-go" }
+func (p *protorpcPlugin) FileNameExt() string { return ".pb.stdrpc.go" }
+
+func (p *protorpcPlugin) HeaderCode(g *generator.Generator, file *generator.FileDescriptor) string {
+	const tmpl = `
+{{- $G := .G -}}
+{{- $File := .File -}}
+
+// Code generated by protoc-gen-stdrpc. DO NOT EDIT.
+//
+// plugin: https://github.com/chai2010/protorpc/tree/master/protoc-gen-plugin
+// plugin: https://github.com/chai2010/protorpc/tree/master/protoc-gen-stdrpc
+//
+// source: {{$File.GetName}}
+
+package {{$File.PackageName}}
+
+import (
+	"fmt"
+	"io"
+	"log"
+	"net"
+	"net/rpc"
+	"time"
+
+	"github.com/golang/protobuf/proto"
+)
+
+var (
+	_ = fmt.Sprint
+	_ = io.Reader(nil)
+	_ = log.Print
+	_ = net.Addr(nil)
+	_ = rpc.Call{}
+	_ = time.Second
+
+	_ = proto.String
+)
+`
+	var buf bytes.Buffer
+	t := template.Must(template.New("").Parse(tmpl))
+	err := t.Execute(&buf,
+		struct {
+			G    *generator.Generator
+			File *generator.FileDescriptor
+		}{
+			G:    g,
+			File: file,
+		},
+	)
+	if err != nil {
+		log.Fatal(err)
+	}
+
+	return buf.String()
+}
+
+func (p *protorpcPlugin) ServiceCode(g *generator.Generator, file *generator.FileDescriptor, svc *descriptor.ServiceDescriptorProto) string {
+	var code string
+	code += p.genServiceInterface(g, file, svc)
+	code += p.genServiceServer(g, file, svc)
+	code += p.genServiceClient(g, file, svc)
+	return code
+}
+
+func (p *protorpcPlugin) MessageCode(g *generator.Generator, file *generator.FileDescriptor, msg *descriptor.DescriptorProto) string {
+	return ""
+}
+
+func (p *protorpcPlugin) genServiceInterface(
+	g *generator.Generator,
+	file *generator.FileDescriptor,
+	svc *descriptor.ServiceDescriptorProto,
+) string {
+	const serviceInterfaceTmpl = `
+type {{.ServiceName}} interface {
+	{{.CallMethodList}}
+}
+`
+	const callMethodTmpl = `
+{{.MethodName}}(in *{{.ArgsType}}, out *{{.ReplyType}}) error`
+
+	// gen call method list
+	var callMethodList string
+	for _, m := range svc.Method {
+		out := bytes.NewBuffer([]byte{})
+		t := template.Must(template.New("").Parse(callMethodTmpl))
+		t.Execute(out, &struct{ ServiceName, MethodName, ArgsType, ReplyType string }{
+			ServiceName: generator.CamelCase(svc.GetName()),
+			MethodName:  generator.CamelCase(m.GetName()),
+			ArgsType:    g.TypeName(g.ObjectNamed(m.GetInputType())),
+			ReplyType:   g.TypeName(g.ObjectNamed(m.GetOutputType())),
+		})
+		callMethodList += out.String()
+
+		g.RecordTypeUse(m.GetInputType())
+		g.RecordTypeUse(m.GetOutputType())
+	}
+
+	// gen all interface code
+	{
+		out := bytes.NewBuffer([]byte{})
+		t := template.Must(template.New("").Parse(serviceInterfaceTmpl))
+		t.Execute(out, &struct{ ServiceName, CallMethodList string }{
+			ServiceName:    generator.CamelCase(svc.GetName()),
+			CallMethodList: callMethodList,
+		})
+
+		return out.String()
+	}
+}
+
+func (p *protorpcPlugin) genServiceServer(
+	g *generator.Generator,
+	file *generator.FileDescriptor,
+	svc *descriptor.ServiceDescriptorProto,
+) string {
+	const serviceHelperFunTmpl = `
+// Accept{{.ServiceName}}Client accepts connections on the listener and serves requests
+// for each incoming connection.  Accept blocks; the caller typically
+// invokes it in a go statement.
+func Accept{{.ServiceName}}Client(lis net.Listener, x {{.ServiceName}}) {
+	srv := rpc.NewServer()
+	if err := srv.RegisterName("{{.ServiceRegisterName}}", x); err != nil {
+		log.Fatal(err)
+	}
+
+	for {
+		conn, err := lis.Accept()
+		if err != nil {
+			log.Fatalf("lis.Accept(): %v\n", err)
+		}
+		go srv.ServeConn(conn)
+	}
+}
+
+// Register{{.ServiceName}} publish the given {{.ServiceName}} implementation on the server.
+func Register{{.ServiceName}}(srv *rpc.Server, x {{.ServiceName}}) error {
+	if err := srv.RegisterName("{{.ServiceRegisterName}}", x); err != nil {
+		return err
+	}
+	return nil
+}
+
+// New{{.ServiceName}}Server returns a new {{.ServiceName}} Server.
+func New{{.ServiceName}}Server(x {{.ServiceName}}) *rpc.Server {
+	srv := rpc.NewServer()
+	if err := srv.RegisterName("{{.ServiceRegisterName}}", x); err != nil {
+		log.Fatal(err)
+	}
+	return srv
+}
+
+// ListenAndServe{{.ServiceName}} listen announces on the local network address laddr
+// and serves the given {{.ServiceName}} implementation.
+func ListenAndServe{{.ServiceName}}(network, addr string, x {{.ServiceName}}) error {
+	lis, err := net.Listen(network, addr)
+	if err != nil {
+		return err
+	}
+	defer lis.Close()
+
+	srv := rpc.NewServer()
+	if err := srv.RegisterName("{{.ServiceRegisterName}}", x); err != nil {
+		return err
+	}
+
+	for {
+		conn, err := lis.Accept()
+		if err != nil {
+			log.Fatalf("lis.Accept(): %v\n", err)
+		}
+		go srv.ServeConn(conn)
+	}
+}
+
+// Serve{{.ServiceName}} serves the given {{.ServiceName}} implementation.
+func Serve{{.ServiceName}}(conn io.ReadWriteCloser, x {{.ServiceName}}) {
+	srv := rpc.NewServer()
+	if err := srv.RegisterName("{{.ServiceRegisterName}}", x); err != nil {
+		log.Fatal(err)
+	}
+	srv.ServeConn(conn)
+}
+`
+	{
+		out := bytes.NewBuffer([]byte{})
+		t := template.Must(template.New("").Parse(serviceHelperFunTmpl))
+		t.Execute(out, &struct{ PackageName, ServiceName, ServiceRegisterName string }{
+			PackageName: file.GetPackage(),
+			ServiceName: generator.CamelCase(svc.GetName()),
+			ServiceRegisterName: p.makeServiceRegisterName(
+				file, file.GetPackage(), generator.CamelCase(svc.GetName()),
+			),
+		})
+
+		return out.String()
+	}
+}
+
+func (p *protorpcPlugin) genServiceClient(
+	g *generator.Generator,
+	file *generator.FileDescriptor,
+	svc *descriptor.ServiceDescriptorProto,
+) string {
+	const clientHelperFuncTmpl = `
+type {{.ServiceName}}Client struct {
+	*rpc.Client
+}
+
+// New{{.ServiceName}}Client returns a {{.ServiceName}} stub to handle
+// requests to the set of {{.ServiceName}} at the other end of the connection.
+func New{{.ServiceName}}Client(conn io.ReadWriteCloser) (*{{.ServiceName}}Client) {
+	c := rpc.NewClient(conn)
+	return &{{.ServiceName}}Client{c}
+}
+
+{{.MethodList}}
+
+// Dial{{.ServiceName}} connects to an {{.ServiceName}} at the specified network address.
+func Dial{{.ServiceName}}(network, addr string) (*{{.ServiceName}}Client, error) {
+	c, err := rpc.Dial(network, addr)
+	if err != nil {
+		return nil, err
+	}
+	return &{{.ServiceName}}Client{c}, nil
+}
+
+// Dial{{.ServiceName}}Timeout connects to an {{.ServiceName}} at the specified network address.
+func Dial{{.ServiceName}}Timeout(network, addr string, timeout time.Duration) (*{{.ServiceName}}Client, error) {
+	conn, err := net.DialTimeout(network, addr, timeout)
+	if err != nil {
+		return nil, err
+	}
+	return &{{.ServiceName}}Client{rpc.NewClient(conn)}, nil
+}
+`
+	const clientMethodTmpl = `
+func (c *{{.ServiceName}}Client) {{.MethodName}}(in *{{.ArgsType}}) (out *{{.ReplyType}}, err error) {
+	if in == nil {
+		in = new({{.ArgsType}})
+	}
+
+	type Validator interface {
+		Validate() error
+	}
+	if x, ok := proto.Message(in).(Validator); ok {
+		if err := x.Validate(); err != nil {
+			return nil, err
+		}
+	}
+
+	out = new({{.ReplyType}})
+	if err = c.Call("{{.ServiceRegisterName}}.{{.MethodName}}", in, out); err != nil {
+		return nil, err
+	}
+
+	if x, ok := proto.Message(out).(Validator); ok {
+		if err := x.Validate(); err != nil {
+			return out, err
+		}
+	}
+
+	return out, nil
+}
+
+func (c *{{.ServiceName}}Client) Async{{.MethodName}}(in *{{.ArgsType}}, out *{{.ReplyType}}, done chan *rpc.Call) *rpc.Call {
+	if in == nil {
+		in = new({{.ArgsType}})
+	}
+	return c.Go(
+		"{{.ServiceRegisterName}}.{{.MethodName}}",
+		in, out,
+		done,
+	)
+}
+`
+
+	// gen client method list
+	var methodList string
+	for _, m := range svc.Method {
+		out := bytes.NewBuffer([]byte{})
+		t := template.Must(template.New("").Parse(clientMethodTmpl))
+		t.Execute(out, &struct{ ServiceName, ServiceRegisterName, MethodName, ArgsType, ReplyType string }{
+			ServiceName: generator.CamelCase(svc.GetName()),
+			ServiceRegisterName: p.makeServiceRegisterName(
+				file, file.GetPackage(), generator.CamelCase(svc.GetName()),
+			),
+			MethodName: generator.CamelCase(m.GetName()),
+			ArgsType:   g.TypeName(g.ObjectNamed(m.GetInputType())),
+			ReplyType:  g.TypeName(g.ObjectNamed(m.GetOutputType())),
+		})
+		methodList += out.String()
+	}
+
+	// gen all client code
+	{
+		out := bytes.NewBuffer([]byte{})
+		t := template.Must(template.New("").Parse(clientHelperFuncTmpl))
+		t.Execute(out, &struct{ PackageName, ServiceName, MethodList string }{
+			PackageName: file.GetPackage(),
+			ServiceName: generator.CamelCase(svc.GetName()),
+			MethodList:  methodList,
+		})
+
+		return out.String()
+	}
+}
+
+func (p *protorpcPlugin) makeServiceRegisterName(
+	file *generator.FileDescriptor,
+	packageName, serviceName string,
+) string {
+	// return packageName + "." + serviceName
+	return serviceName
+}

core/protorpc/protoc-gen-stdrpc/main.go

@@ -0,0 +1,103 @@
+// Go support for Protocol Buffers - Google's data interchange format
+//
+// Copyright 2010 The Go Authors.  All rights reserved.
+// https://github.com/golang/protobuf
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// protoc-gen-go is a plugin for the Google protocol buffer compiler to generate
+// Go code.  Run it by building this program and putting it in your path with
+// the name
+// 	protoc-gen-go
+// That word 'go' at the end becomes part of the option string set for the
+// protocol compiler, so once the protocol compiler (protoc) is installed
+// you can run
+// 	protoc --go_out=output_directory input_directory/file.proto
+// to generate Go bindings for the protocol defined by file.proto.
+// With that input, the output will be written to
+// 	output_directory/file.pb.go
+//
+// The generated code is documented in the package comment for
+// the library.
+//
+// See the README and documentation for protocol buffers to learn more:
+// 	https://developers.google.com/protocol-buffers/
+package main
+
+import (
+	"io/ioutil"
+	"os"
+	"strings"
+
+	"github.com/golang/protobuf/proto"
+	"github.com/golang/protobuf/protoc-gen-go/generator"
+)
+
+func main() {
+	// Begin by allocating a generator. The request and response structures are stored there
+	// so we can do error handling easily - the response structure contains the field to
+	// report failure.
+	g := generator.New()
+
+	data, err := ioutil.ReadAll(os.Stdin)
+	if err != nil {
+		g.Error(err, "reading input")
+	}
+
+	if err := proto.Unmarshal(data, g.Request); err != nil {
+		g.Error(err, "parsing input proto")
+	}
+
+	if len(g.Request.FileToGenerate) == 0 {
+		g.Fail("no files to generate")
+	}
+
+	parameter := g.Request.GetParameter()
+	if !strings.Contains(parameter, "plugins=") {
+		parameter += ",plugins=" + netrpcPluginName
+	}
+	g.CommandLineParameters(parameter)
+
+	// Create a wrapped version of the Descriptors and EnumDescriptors that
+	// point to the file that defines them.
+	g.WrapTypes()
+
+	g.SetPackageNames()
+	g.BuildTypeNameMap()
+
+	g.GenerateAllFiles()
+
+	// Send back the results.
+	data, err = proto.Marshal(g.Response)
+	if err != nil {
+		g.Error(err, "failed to marshal output proto")
+	}
+	_, err = os.Stdout.Write(data)
+	if err != nil {
+		g.Error(err, "failed to write output proto")
+	}
+}

core/protorpc/protoc-gen-stdrpc/netrpc.go

@@ -0,0 +1,350 @@
+// Copyright 2013 <chaishushan{AT}gmail.com>. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package main
+
+import (
+	"bytes"
+	"text/template"
+
+	"github.com/golang/protobuf/protoc-gen-go/descriptor"
+	"github.com/golang/protobuf/protoc-gen-go/generator"
+)
+
+const netrpcPluginName = "netrpc"
+
+// netrpcPlugin produce the Service interface.
+type netrpcPlugin struct {
+	*generator.Generator
+}
+
+// Name returns the name of the plugin.
+func (p *netrpcPlugin) Name() string { return netrpcPluginName }
+
+// Init is called once after data structures are built but before
+// code generation begins.
+func (p *netrpcPlugin) Init(g *generator.Generator) {
+	p.Generator = g
+}
+
+// Generate produces the code generated by the plugin for this file.
+func (p *netrpcPlugin) GenerateImports(file *generator.FileDescriptor) {
+	if len(file.Service) > 0 {
+		p.P(`import "bufio"`)
+		p.P(`import "crypto/tls"`)
+		p.P(`import "errors"`)
+		p.P(`import "io"`)
+		p.P(`import "log"`)
+		p.P(`import "net"`)
+		p.P(`import "net/http"`)
+		p.P(`import "net/rpc"`)
+		p.P(`import "time"`)
+	}
+}
+
+// Generate generates the Service interface.
+// rpc service can't handle other proto message!!!
+func (p *netrpcPlugin) Generate(file *generator.FileDescriptor) {
+	for _, svc := range file.Service {
+		p.genServiceInterface(file, svc)
+		p.genServiceServer(file, svc)
+		p.genServiceClient(file, svc)
+	}
+}
+
+func (p *netrpcPlugin) genServiceInterface(
+	file *generator.FileDescriptor,
+	svc *descriptor.ServiceDescriptorProto,
+) {
+	const serviceInterfaceTmpl = `
+type {{.ServiceName}} interface {
+	{{.CallMethodList}}
+}
+`
+	const callMethodTmpl = `
+{{.MethodName}}(in *{{.ArgsType}}, out *{{.ReplyType}}) error`
+
+	// gen call method list
+	var callMethodList string
+	for _, m := range svc.Method {
+		out := bytes.NewBuffer([]byte{})
+		t := template.Must(template.New("").Parse(callMethodTmpl))
+		t.Execute(out, &struct{ ServiceName, MethodName, ArgsType, ReplyType string }{
+			ServiceName: generator.CamelCase(svc.GetName()),
+			MethodName:  generator.CamelCase(m.GetName()),
+			ArgsType:    p.TypeName(p.ObjectNamed(m.GetInputType())),
+			ReplyType:   p.TypeName(p.ObjectNamed(m.GetOutputType())),
+		})
+		callMethodList += out.String()
+
+		p.RecordTypeUse(m.GetInputType())
+		p.RecordTypeUse(m.GetOutputType())
+	}
+
+	// gen all interface code
+	{
+		out := bytes.NewBuffer([]byte{})
+		t := template.Must(template.New("").Parse(serviceInterfaceTmpl))
+		t.Execute(out, &struct{ ServiceName, CallMethodList string }{
+			ServiceName:    generator.CamelCase(svc.GetName()),
+			CallMethodList: callMethodList,
+		})
+		p.P(out.String())
+	}
+}
+
+func (p *netrpcPlugin) genServiceServer(
+	file *generator.FileDescriptor,
+	svc *descriptor.ServiceDescriptorProto,
+) {
+	const serviceHelperFunTmpl = `
+// Accept{{.ServiceName}}Client accepts connections on the listener and serves requests
+// for each incoming connection.  Accept blocks; the caller typically
+// invokes it in a go statement.
+func Accept{{.ServiceName}}Client(lis net.Listener, x {{.ServiceName}}) {
+	srv := rpc.NewServer()
+	if err := srv.RegisterName("{{.ServiceRegisterName}}", x); err != nil {
+		log.Fatal(err)
+	}
+
+	for {
+		conn, err := lis.Accept()
+		if err != nil {
+			log.Fatalf("lis.Accept(): %v\n", err)
+		}
+		go srv.ServeConn(conn)
+	}
+}
+
+// Register{{.ServiceName}} publish the given {{.ServiceName}} implementation on the server.
+func Register{{.ServiceName}}(srv *rpc.Server, x {{.ServiceName}}) error {
+	if err := srv.RegisterName("{{.ServiceRegisterName}}", x); err != nil {
+		return err
+	}
+	return nil
+}
+
+// New{{.ServiceName}}Server returns a new {{.ServiceName}} Server.
+func New{{.ServiceName}}Server(x {{.ServiceName}}) *rpc.Server {
+	srv := rpc.NewServer()
+	if err := srv.RegisterName("{{.ServiceRegisterName}}", x); err != nil {
+		log.Fatal(err)
+	}
+	return srv
+}
+
+// ListenAndServe{{.ServiceName}} listen announces on the local network address laddr
+// and serves the given {{.ServiceName}} implementation.
+func ListenAndServe{{.ServiceName}}(network, addr string, x {{.ServiceName}}) error {
+	lis, err := net.Listen(network, addr)
+	if err != nil {
+		return err
+	}
+	defer lis.Close()
+
+	srv := rpc.NewServer()
+	if err := srv.RegisterName("{{.ServiceRegisterName}}", x); err != nil {
+		return err
+	}
+
+	for {
+		conn, err := lis.Accept()
+		if err != nil {
+			log.Fatalf("lis.Accept(): %v\n", err)
+		}
+		go srv.ServeConn(conn)
+	}
+}
+
+// Serve{{.ServiceName}} serves the given {{.ServiceName}} implementation.
+func Serve{{.ServiceName}}(conn io.ReadWriteCloser, x {{.ServiceName}}) {
+	srv := rpc.NewServer()
+	if err := srv.RegisterName("{{.ServiceRegisterName}}", x); err != nil {
+		log.Fatal(err)
+	}
+	srv.ServeConn(conn)
+}
+`
+	{
+		out := bytes.NewBuffer([]byte{})
+		t := template.Must(template.New("").Parse(serviceHelperFunTmpl))
+		t.Execute(out, &struct{ PackageName, ServiceName, ServiceRegisterName string }{
+			PackageName: file.GetPackage(),
+			ServiceName: generator.CamelCase(svc.GetName()),
+			ServiceRegisterName: p.makeServiceRegisterName(
+				file, file.GetPackage(), generator.CamelCase(svc.GetName()),
+			),
+		})
+		p.P(out.String())
+	}
+}
+
+func (p *netrpcPlugin) genServiceClient(
+	file *generator.FileDescriptor,
+	svc *descriptor.ServiceDescriptorProto,
+) {
+	const clientHelperFuncTmpl = `
+type {{.ServiceName}}Client struct {
+	*rpc.Client
+}
+
+// New{{.ServiceName}}Client returns a {{.ServiceName}} stub to handle
+// requests to the set of {{.ServiceName}} at the other end of the connection.
+func New{{.ServiceName}}Client(conn io.ReadWriteCloser) (*{{.ServiceName}}Client) {
+	c := rpc.NewClient(conn)
+	return &{{.ServiceName}}Client{c}
+}
+
+{{.MethodList}}
+
+// Dial{{.ServiceName}} connects to an {{.ServiceName}} at the specified network address.
+func Dial{{.ServiceName}}(network, addr string) (*{{.ServiceName}}Client, error) {
+	c, err := rpc.Dial(network, addr)
+	if err != nil {
+		return nil, err
+	}
+	return &{{.ServiceName}}Client{c}, nil
+}
+
+// Dial{{.ServiceName}}Timeout connects to an {{.ServiceName}} at the specified network address.
+func Dial{{.ServiceName}}Timeout(network, addr string, timeout time.Duration) (*{{.ServiceName}}Client, error) {
+	conn, err := net.DialTimeout(network, addr, timeout)
+	if err != nil {
+		return nil, err
+	}
+	return &{{.ServiceName}}Client{rpc.NewClient(conn)}, nil
+}
+
+// Dial{{.ServiceName}}HTTP connects to an HTTP RPC server at the specified network address
+// listening on the default HTTP RPC path.
+func Dial{{.ServiceName}}HTTP(network, address string) (*{{.ServiceName}}Client, error) {
+	return Dial{{.ServiceName}}HTTPPath(network, address, rpc.DefaultRPCPath)
+}
+
+// Dial{{.ServiceName}}HTTPPath connects to an HTTP RPC server
+// at the specified network address and path.
+func Dial{{.ServiceName}}HTTPPath(network, address, path string) (*{{.ServiceName}}Client, error) {
+	conn, err := net.Dial(network, address)
+	if err != nil {
+		return nil, err
+	}
+	return dial{{.ServiceName}}Path(network, address, path, conn)
+}
+
+// Dial{{.ServiceName}}HTTPS connects to an HTTPS RPC server at the specified network address
+// listening on the default HTTP RPC path.
+func Dial{{.ServiceName}}HTTPS(network, address string, tlsConfig *tls.Config) (*{{.ServiceName}}Client, error) {
+	return Dial{{.ServiceName}}HTTPSPath(network, address, rpc.DefaultRPCPath, tlsConfig)
+}
+
+// Dial{{.ServiceName}}HTTPSPath connects to an HTTPS RPC server
+// at the specified network address and path.
+func Dial{{.ServiceName}}HTTPSPath(network, address, path string, tlsConfig *tls.Config) (*{{.ServiceName}}Client, error) {
+	conn, err := tls.Dial(network, address, tlsConfig)
+	if err != nil {
+		return nil, err
+	}
+	return dial{{.ServiceName}}Path(network, address, path, conn)
+}
+
+func dial{{.ServiceName}}Path(network, address, path string, conn net.Conn) (*{{.ServiceName}}Client, error) {
+	const net_rpc_connected = "200 Connected to Go RPC"
+
+	io.WriteString(conn, "CONNECT "+path+" HTTP/1.0\n\n")
+
+	// Require successful HTTP response
+	// before switching to RPC protocol.
+	resp, err := http.ReadResponse(bufio.NewReader(conn), &http.Request{Method: "CONNECT"})
+	if err == nil && resp.Status == net_rpc_connected {
+		return &{{.ServiceName}}Client{rpc.NewClient(conn)}, nil
+	}
+	if err == nil {
+		err = errors.New("unexpected HTTP response: " + resp.Status)
+	}
+	conn.Close()
+	return nil, &net.OpError{
+		Op:   "dial-http",
+		Net:  network + " " + address,
+		Addr: nil,
+		Err:  err,
+	}
+}
+`
+	const clientMethodTmpl = `
+func (c *{{.ServiceName}}Client) {{.MethodName}}(in *{{.ArgsType}}) (out *{{.ReplyType}}, err error) {
+	if in == nil {
+		in = new({{.ArgsType}})
+	}
+	type Validator interface {
+		Validate() error
+	}
+	if x, ok := proto.Message(in).(Validator); ok {
+		if err := x.Validate(); err != nil {
+			return nil, err
+		}
+	}
+	out = new({{.ReplyType}})
+	if err = c.Call("{{.ServiceRegisterName}}.{{.MethodName}}", in, out); err != nil {
+		return nil, err
+	}
+	if x, ok := proto.Message(out).(Validator); ok {
+		if err := x.Validate(); err != nil {
+			return out, err
+		}
+	}
+	return out, nil
+}
+
+func (c *{{.ServiceName}}Client) Async{{.MethodName}}(in *{{.ArgsType}}, out *{{.ReplyType}}, done chan *rpc.Call) *rpc.Call {
+	if in == nil {
+		in = new({{.ArgsType}})
+	}
+	return c.Go(
+		"{{.ServiceRegisterName}}.{{.MethodName}}",
+		in, out,
+		done,
+	)
+}
+`
+
+	// gen client method list
+	var methodList string
+	for _, m := range svc.Method {
+		out := bytes.NewBuffer([]byte{})
+		t := template.Must(template.New("").Parse(clientMethodTmpl))
+		t.Execute(out, &struct{ ServiceName, ServiceRegisterName, MethodName, ArgsType, ReplyType string }{
+			ServiceName: generator.CamelCase(svc.GetName()),
+			ServiceRegisterName: p.makeServiceRegisterName(
+				file, file.GetPackage(), generator.CamelCase(svc.GetName()),
+			),
+			MethodName: generator.CamelCase(m.GetName()),
+			ArgsType:   p.TypeName(p.ObjectNamed(m.GetInputType())),
+			ReplyType:  p.TypeName(p.ObjectNamed(m.GetOutputType())),
+		})
+		methodList += out.String()
+	}
+
+	// gen all client code
+	{
+		out := bytes.NewBuffer([]byte{})
+		t := template.Must(template.New("").Parse(clientHelperFuncTmpl))
+		t.Execute(out, &struct{ PackageName, ServiceName, MethodList string }{
+			PackageName: file.GetPackage(),
+			ServiceName: generator.CamelCase(svc.GetName()),
+			MethodList:  methodList,
+		})
+		p.P(out.String())
+	}
+}
+
+func (p *netrpcPlugin) makeServiceRegisterName(
+	file *generator.FileDescriptor,
+	packageName, serviceName string,
+) string {
+	return packageName + "." + serviceName
+}
+
+func init() {
+	generator.RegisterPlugin(new(netrpcPlugin))
+}

core/protorpc/rpc_test.go

@@ -0,0 +1,256 @@
+// Copyright 2013 <chaishushan{AT}gmail.com>. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package protorpc_test
+
+import (
+	"errors"
+	"log"
+	"net"
+	"net/rpc"
+	"testing"
+	"time"
+
+	"github.com/chai2010/protorpc"
+	msg "github.com/chai2010/protorpc/examples/message.pb"
+)
+
+type Arith int
+
+func (t *Arith) Add(args *msg.ArithRequest, reply *msg.ArithResponse) error {
+	reply.C = args.A + args.B
+	log.Printf("Arith.Add(%v, %v): %v", args.A, args.B, reply.C)
+	return nil
+}
+
+func (t *Arith) Mul(args *msg.ArithRequest, reply *msg.ArithResponse) error {
+	reply.C = args.A * args.B
+	return nil
+}
+
+func (t *Arith) Div(args *msg.ArithRequest, reply *msg.ArithResponse) error {
+	if args.B == 0 {
+		return errors.New("divide by zero")
+	}
+	reply.C = args.A / args.B
+	return nil
+}
+
+func (t *Arith) Error(args *msg.ArithRequest, reply *msg.ArithResponse) error {
+	return errors.New("ArithError")
+}
+
+type Echo int
+
+func (t *Echo) Echo(args *msg.EchoRequest, reply *msg.EchoResponse) error {
+	reply.Msg = args.Msg
+	return nil
+}
+
+func TestInternalMessagePkg(t *testing.T) {
+	err := listenAndServeArithAndEchoService("tcp", "127.0.0.1:1414")
+	if err != nil {
+		log.Fatalf("listenAndServeArithAndEchoService: %v", err)
+	}
+
+	conn, err := net.Dial("tcp", "127.0.0.1:1414")
+	if err != nil {
+		t.Fatalf(`net.Dial("tcp", "127.0.0.1:1414"): %v`, err)
+	}
+	client := rpc.NewClientWithCodec(protorpc.NewClientCodec(conn))
+	defer client.Close()
+
+	testArithClient(t, client)
+	testEchoClient(t, client)
+
+	testArithClientAsync(t, client)
+	testEchoClientAsync(t, client)
+}
+
+func listenAndServeArithAndEchoService(network, addr string) error {
+	clients, err := net.Listen(network, addr)
+	if err != nil {
+		return err
+	}
+	srv := rpc.NewServer()
+	if err := srv.RegisterName("ArithService", new(Arith)); err != nil {
+		return err
+	}
+	if err := srv.RegisterName("EchoService", new(Echo)); err != nil {
+		return err
+	}
+	go func() {
+		for {
+			conn, err := clients.Accept()
+			if err != nil {
+				log.Printf("clients.Accept(): %v\n", err)
+				continue
+			}
+			go srv.ServeCodec(protorpc.NewServerCodec(conn))
+		}
+	}()
+	return nil
+}
+
+func testArithClient(t *testing.T, client *rpc.Client) {
+	var args msg.ArithRequest
+	var reply msg.ArithResponse
+	var err error
+
+	// Add
+	args.A = 1
+	args.B = 2
+	if err = client.Call("ArithService.Add", &args, &reply); err != nil {
+		t.Fatalf(`arith.Add: %v`, err)
+	}
+	if reply.C != 3 {
+		t.Fatalf(`arith.Add: expected = %d, got = %d`, 3, reply.C)
+	}
+
+	// Mul
+	args.A = 2
+	args.B = 3
+	if err = client.Call("ArithService.Mul", &args, &reply); err != nil {
+		t.Fatalf(`arith.Mul: %v`, err)
+	}
+	if reply.C != 6 {
+		t.Fatalf(`arith.Mul: expected = %d, got = %d`, 6, reply.C)
+	}
+
+	// Div
+	args.A = 13
+	args.B = 5
+	if err = client.Call("ArithService.Div", &args, &reply); err != nil {
+		t.Fatalf(`arith.Div: %v`, err)
+	}
+	if reply.C != 2 {
+		t.Fatalf(`arith.Div: expected = %d, got = %d`, 2, reply.C)
+	}
+
+	// Div zero
+	args.A = 1
+	args.B = 0
+	if err = client.Call("ArithService.Div", &args, &reply); err.Error() != "divide by zero" {
+		t.Fatalf(`arith.Error: expected = "%s", got = "%s"`, "divide by zero", err.Error())
+	}
+
+	// Error
+	args.A = 1
+	args.B = 2
+	if err = client.Call("ArithService.Error", &args, &reply); err.Error() != "ArithError" {
+		t.Fatalf(`arith.Error: expected = "%s", got = "%s"`, "ArithError", err.Error())
+	}
+}
+
+func testArithClientAsync(t *testing.T, client *rpc.Client) {
+	done := make(chan *rpc.Call, 16)
+	callInfoList := []struct {
+		method string
+		args   *msg.ArithRequest
+		reply  *msg.ArithResponse
+		err    error
+	}{
+		{
+			"ArithService.Add",
+			&msg.ArithRequest{A: 1, B: 2},
+			&msg.ArithResponse{C: 3},
+			nil,
+		},
+		{
+			"ArithService.Mul",
+			&msg.ArithRequest{A: 2, B: 3},
+			&msg.ArithResponse{C: 6},
+			nil,
+		},
+		{
+			"ArithService.Div",
+			&msg.ArithRequest{A: 13, B: 5},
+			&msg.ArithResponse{C: 2},
+			nil,
+		},
+		{
+			"ArithService.Div",
+			&msg.ArithRequest{A: 1, B: 0},
+			&msg.ArithResponse{},
+			errors.New("divide by zero"),
+		},
+		{
+			"ArithService.Error",
+			&msg.ArithRequest{A: 1, B: 2},
+			&msg.ArithResponse{},
+			errors.New("ArithError"),
+		},
+	}
+
+	// GoCall list
+	calls := make([]*rpc.Call, len(callInfoList))
+	for i := 0; i < len(calls); i++ {
+		calls[i] = client.Go(callInfoList[i].method,
+			callInfoList[i].args, callInfoList[i].reply,
+			done,
+		)
+	}
+	for i := 0; i < len(calls); i++ {
+		<-calls[i].Done
+	}
+
+	// check result
+	for i := 0; i < len(calls); i++ {
+		if callInfoList[i].err != nil {
+			if calls[i].Error.Error() != callInfoList[i].err.Error() {
+				t.Fatalf(`%s: expected %v, Got = %v`,
+					callInfoList[i].method,
+					callInfoList[i].err,
+					calls[i].Error,
+				)
+			}
+			continue
+		}
+
+		got := calls[i].Reply.(*msg.ArithResponse).C
+		expected := callInfoList[i].reply.C
+		if got != expected {
+			t.Fatalf(`%v: expected %v, Got = %v`,
+				callInfoList[i].method, got, expected,
+			)
+		}
+	}
+}
+
+func testEchoClient(t *testing.T, client *rpc.Client) {
+	var args msg.EchoRequest
+	var reply msg.EchoResponse
+	var err error
+
+	// EchoService.Echo
+	args.Msg = "Hello, Protobuf-RPC"
+	if err = client.Call("EchoService.Echo", &args, &reply); err != nil {
+		t.Fatalf(`EchoService.Echo: %v`, err)
+	}
+	if reply.Msg != args.Msg {
+		t.Fatalf(`EchoService.Echo: expected = "%s", got = "%s"`, args.Msg, reply.Msg)
+	}
+}
+
+func testEchoClientAsync(t *testing.T, client *rpc.Client) {
+	// EchoService.Echo
+	args := &msg.EchoRequest{Msg: "Hello, Protobuf-RPC"}
+	reply := &msg.EchoResponse{}
+	echoCall := client.Go("EchoService.Echo", args, reply, nil)
+
+	// sleep 1s
+	time.Sleep(time.Second)
+
+	// EchoService.Echo reply
+	echoCall = <-echoCall.Done
+	if echoCall.Error != nil {
+		t.Fatalf(`EchoService.Echo: %v`, echoCall.Error)
+	}
+	if echoCall.Reply.(*msg.EchoResponse).Msg != args.Msg {
+		t.Fatalf(`EchoService.Echo: expected = "%s", got = "%s"`,
+			args.Msg,
+			echoCall.Reply.(*msg.EchoResponse).Msg,
+		)
+	}
+}

core/protorpc/server.go

@@ -0,0 +1,134 @@
+// Copyright 2013 <chaishushan{AT}gmail.com>. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package protorpc
+
+import (
+	"errors"
+	"fmt"
+	"io"
+	"net/rpc"
+	"sync"
+
+	wire "github.com/chai2010/protorpc/wire.pb"
+	"github.com/golang/protobuf/proto"
+)
+
+type serverCodec struct {
+	r io.Reader
+	w io.Writer
+	c io.Closer
+
+	// temporary work space
+	reqHeader wire.RequestHeader
+
+	// Package rpc expects uint64 request IDs.
+	// We assign uint64 sequence numbers to incoming requests
+	// but save the original request ID in the pending map.
+	// When rpc responds, we use the sequence number in
+	// the response to find the original request ID.
+	mutex   sync.Mutex // protects seq, pending
+	seq     uint64
+	pending map[uint64]uint64
+}
+
+// NewServerCodec returns a serverCodec that communicates with the ClientCodec
+// on the other end of the given conn.
+func NewServerCodec(conn io.ReadWriteCloser) rpc.ServerCodec {
+	return &serverCodec{
+		r:       conn,
+		w:       conn,
+		c:       conn,
+		pending: make(map[uint64]uint64),
+	}
+}
+
+func (c *serverCodec) ReadRequestHeader(r *rpc.Request) error {
+	header := wire.RequestHeader{}
+	err := readRequestHeader(c.r, &header)
+	if err != nil {
+		return err
+	}
+
+	c.mutex.Lock()
+	c.seq++
+	c.pending[c.seq] = *header.Id
+	r.ServiceMethod = *header.Method
+	r.Seq = c.seq
+	c.mutex.Unlock()
+
+	c.reqHeader = header
+	return nil
+}
+
+func (c *serverCodec) ReadRequestBody(x interface{}) error {
+	if x == nil {
+		return nil
+	}
+	request, ok := x.(proto.Message)
+	if !ok {
+		return fmt.Errorf(
+			"protorpc.ServerCodec.ReadRequestBody: %T does not implement proto.Message",
+			x,
+		)
+	}
+
+	err := readRequestBody(c.r, &c.reqHeader, request)
+	if err != nil {
+		return nil
+	}
+
+	c.reqHeader = wire.RequestHeader{}
+	return nil
+}
+
+// A value sent as a placeholder for the server's response value when the server
+// receives an invalid request. It is never decoded by the client since the Response
+// contains an error when it is used.
+var invalidRequest = struct{}{}
+
+func (c *serverCodec) WriteResponse(r *rpc.Response, x interface{}) error {
+	var response proto.Message
+	if x != nil {
+		var ok bool
+		if response, ok = x.(proto.Message); !ok {
+			if _, ok = x.(struct{}); !ok {
+				c.mutex.Lock()
+				delete(c.pending, r.Seq)
+				c.mutex.Unlock()
+				return fmt.Errorf(
+					"protorpc.ServerCodec.WriteResponse: %T does not implement proto.Message",
+					x,
+				)
+			}
+		}
+	}
+
+	c.mutex.Lock()
+	id, ok := c.pending[r.Seq]
+	if !ok {
+		c.mutex.Unlock()
+		return errors.New("protorpc: invalid sequence number in response")
+	}
+	delete(c.pending, r.Seq)
+	c.mutex.Unlock()
+
+	err := writeResponse(c.w, id, r.Error, response)
+	if err != nil {
+		return err
+	}
+
+	return nil
+}
+
+func (s *serverCodec) Close() error {
+	return s.c.Close()
+}
+
+// ServeConn runs the Protobuf-RPC server on a single connection.
+// ServeConn blocks, serving the connection until the client hangs up.
+// The caller typically invokes ServeConn in a go statement.
+func ServeConn(conn io.ReadWriteCloser) {
+	rpc.ServeCodec(NewServerCodec(conn))
+}

core/protorpc/wire.go

@@ -0,0 +1,173 @@
+// Copyright 2013 <chaishushan{AT}gmail.com>. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package protorpc
+
+import (
+	"fmt"
+	"io"
+
+	wire "github.com/chai2010/protorpc/wire.pb"
+	"github.com/golang/protobuf/proto"
+)
+
+func To[T any](v T) *T {
+	return &v
+}
+
+func maxUint32(a, b uint32) uint32 {
+	if a > b {
+		return a
+	}
+	return b
+}
+
+func writeRequest(w io.Writer, id uint64, method string, request proto.Message) error {
+	// marshal request
+	pbRequest := []byte{}
+	if request != nil {
+		var err error
+		pbRequest, err = proto.Marshal(request)
+		if err != nil {
+			return err
+		}
+	}
+
+	// generate header
+	header := &wire.RequestHeader{
+		Id:                         To(id),
+		Method:                     To(method),
+		RawRequestLen:              To(uint32(len(pbRequest))),
+	}
+
+	// check header size
+	pbHeader, err := proto.Marshal(header)
+	if err != err {
+		return err
+	}
+	if len(pbHeader) > int(wire.Const_MAX_REQUEST_HEADER_LEN) {
+		return fmt.Errorf("protorpc.writeRequest: header larger than max_header_len: %d.", len(pbHeader))
+	}
+
+	// send header (more)
+	if err := sendFrame(w, pbHeader); err != nil {
+		return err
+	}
+
+	// send body (end)
+	if err := sendFrame(w, pbRequest); err != nil {
+		return err
+	}
+
+	return nil
+}
+
+func readRequestHeader(r io.Reader, header *wire.RequestHeader) (err error) {
+	// recv header (more)
+	pbHeader, err := recvFrame(r, int(wire.Const_MAX_REQUEST_HEADER_LEN))
+	if err != nil {
+		return err
+	}
+
+	// Marshal Header
+	err = proto.Unmarshal(pbHeader, header)
+	if err != nil {
+		return err
+	}
+
+	return nil
+}
+
+func readRequestBody(r io.Reader, header *wire.RequestHeader, request proto.Message) error {
+	// recv body (end)
+	pbRequest, err := recvFrame(r, int(*header.RawRequestLen))
+	if err != nil {
+		return err
+	}
+
+	// Unmarshal to proto message
+	if request != nil {
+		err = proto.Unmarshal(pbRequest, request)
+		if err != nil {
+			return err
+		}
+	}
+
+	return nil
+}
+
+func writeResponse(w io.Writer, id uint64, serr string, response proto.Message) (err error) {
+	// clean response if error
+	if serr != "" {
+		response = nil
+	}
+
+	// marshal response
+	pbResponse := []byte{}
+	if response != nil {
+		pbResponse, err = proto.Marshal(response)
+		if err != nil {
+			return err
+		}
+	}
+
+	// generate header
+	header := &wire.ResponseHeader{
+		Id:                          To(id),
+		Error:                       To(serr),
+		RawResponseLen:              To(uint32(len(pbResponse))),
+	}
+
+	// check header size
+	pbHeader, err := proto.Marshal(header)
+	if err != err {
+		return
+	}
+
+	// send header (more)
+	if err = sendFrame(w, pbHeader); err != nil {
+		return
+	}
+
+	// send body (end)
+	if err = sendFrame(w, pbResponse); err != nil {
+		return
+	}
+
+	return nil
+}
+
+func readResponseHeader(r io.Reader, header *wire.ResponseHeader) error {
+	// recv header (more)
+	pbHeader, err := recvFrame(r, 0)
+	if err != nil {
+		return err
+	}
+
+	// Marshal Header
+	err = proto.Unmarshal(pbHeader, header)
+	if err != nil {
+		return err
+	}
+
+	return nil
+}
+
+func readResponseBody(r io.Reader, header *wire.ResponseHeader, response proto.Message) error {
+	// recv body (end)
+	pbResponse, err := recvFrame(r, int(*header.RawResponseLen))
+	if err != nil {
+		return err
+	}
+
+	// Unmarshal to proto message
+	if response != nil {
+		err = proto.Unmarshal(pbResponse, response)
+		if err != nil {
+			return err
+		}
+	}
+
+	return nil
+}

core/protorpc/wire.pb/proto.go

@@ -0,0 +1,7 @@
+// Copyright 2014 <chaishushan{AT}gmail.com>. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+//go:generate protoc --go_out=. wire.proto
+
+package protorpc_wire

core/protorpc/wire.pb/wire.pb.go

@@ -0,0 +1,296 @@
+// Copyright 2013 <chaishushan{AT}gmail.com>. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// Code generated by protoc-gen-go. DO NOT EDIT.
+// versions:
+// 	protoc-gen-go v1.36.6
+// 	protoc        v6.31.0
+// source: wire.proto
+
+//
+//	protorpc wire format wrapper
+//
+//	0. Frame Format
+//	len : uvarint64
+//	data: byte[len]
+//
+//	1. Client Send Request
+//	Send RequestHeader: sendFrame(zsock, hdr, len(hdr))
+//	Send Request: sendFrame(zsock, body, hdr.snappy_compressed_request_len)
+//
+//	2. Server Recv Request
+//	Recv RequestHeader: recvFrame(zsock, hdr, max_hdr_len, 0)
+//	Recv Request: recvFrame(zsock, body, hdr.snappy_compressed_request_len, 0)
+//
+//	3. Server Send Response
+//	Send ResponseHeader: sendFrame(zsock, hdr, len(hdr))
+//	Send Response: sendFrame(zsock, body, hdr.snappy_compressed_response_len)
+//
+//	4. Client Recv Response
+//	Recv ResponseHeader: recvFrame(zsock, hdr, max_hdr_len, 0)
+//	Recv Response: recvFrame(zsock, body, hdr.snappy_compressed_response_len, 0)
+//
+
+package protorpc_wire
+
+import (
+	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
+	protoimpl "google.golang.org/protobuf/runtime/protoimpl"
+	reflect "reflect"
+	sync "sync"
+	unsafe "unsafe"
+)
+
+const (
+	// Verify that this generated code is sufficiently up-to-date.
+	_ = protoimpl.EnforceVersion(20 - protoimpl.MinVersion)
+	// Verify that runtime/protoimpl is sufficiently up-to-date.
+	_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
+)
+
+type Const int32
+
+const (
+	Const_ZERO                   Const = 0
+	Const_MAX_REQUEST_HEADER_LEN Const = 1024
+)
+
+// Enum value maps for Const.
+var (
+	Const_name = map[int32]string{
+		0:    "ZERO",
+		1024: "MAX_REQUEST_HEADER_LEN",
+	}
+	Const_value = map[string]int32{
+		"ZERO":                   0,
+		"MAX_REQUEST_HEADER_LEN": 1024,
+	}
+)
+
+func (x Const) Enum() *Const {
+	p := new(Const)
+	*p = x
+	return p
+}
+
+func (x Const) String() string {
+	return protoimpl.X.EnumStringOf(x.Descriptor(), protoreflect.EnumNumber(x))
+}
+
+func (Const) Descriptor() protoreflect.EnumDescriptor {
+	return file_wire_proto_enumTypes[0].Descriptor()
+}
+
+func (Const) Type() protoreflect.EnumType {
+	return &file_wire_proto_enumTypes[0]
+}
+
+func (x Const) Number() protoreflect.EnumNumber {
+	return protoreflect.EnumNumber(x)
+}
+
+// Deprecated: Do not use.
+func (x *Const) UnmarshalJSON(b []byte) error {
+	num, err := protoimpl.X.UnmarshalJSONEnum(x.Descriptor(), b)
+	if err != nil {
+		return err
+	}
+	*x = Const(num)
+	return nil
+}
+
+// Deprecated: Use Const.Descriptor instead.
+func (Const) EnumDescriptor() ([]byte, []int) {
+	return file_wire_proto_rawDescGZIP(), []int{0}
+}
+
+type RequestHeader struct {
+	state         protoimpl.MessageState `protogen:"open.v1"`
+	Id            *uint64                `protobuf:"varint,1,req,name=id" json:"id,omitempty"`
+	Method        *string                `protobuf:"bytes,2,req,name=method" json:"method,omitempty"`
+	RawRequestLen *uint32                `protobuf:"varint,3,req,name=raw_request_len,json=rawRequestLen" json:"raw_request_len,omitempty"`
+	unknownFields protoimpl.UnknownFields
+	sizeCache     protoimpl.SizeCache
+}
+
+func (x *RequestHeader) Reset() {
+	*x = RequestHeader{}
+	mi := &file_wire_proto_msgTypes[0]
+	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+	ms.StoreMessageInfo(mi)
+}
+
+func (x *RequestHeader) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*RequestHeader) ProtoMessage() {}
+
+func (x *RequestHeader) ProtoReflect() protoreflect.Message {
+	mi := &file_wire_proto_msgTypes[0]
+	if x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use RequestHeader.ProtoReflect.Descriptor instead.
+func (*RequestHeader) Descriptor() ([]byte, []int) {
+	return file_wire_proto_rawDescGZIP(), []int{0}
+}
+
+func (x *RequestHeader) GetId() uint64 {
+	if x != nil && x.Id != nil {
+		return *x.Id
+	}
+	return 0
+}
+
+func (x *RequestHeader) GetMethod() string {
+	if x != nil && x.Method != nil {
+		return *x.Method
+	}
+	return ""
+}
+
+func (x *RequestHeader) GetRawRequestLen() uint32 {
+	if x != nil && x.RawRequestLen != nil {
+		return *x.RawRequestLen
+	}
+	return 0
+}
+
+type ResponseHeader struct {
+	state          protoimpl.MessageState `protogen:"open.v1"`
+	Id             *uint64                `protobuf:"varint,1,req,name=id" json:"id,omitempty"`
+	Error          *string                `protobuf:"bytes,2,req,name=error" json:"error,omitempty"`
+	RawResponseLen *uint32                `protobuf:"varint,3,req,name=raw_response_len,json=rawResponseLen" json:"raw_response_len,omitempty"`
+	unknownFields  protoimpl.UnknownFields
+	sizeCache      protoimpl.SizeCache
+}
+
+func (x *ResponseHeader) Reset() {
+	*x = ResponseHeader{}
+	mi := &file_wire_proto_msgTypes[1]
+	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+	ms.StoreMessageInfo(mi)
+}
+
+func (x *ResponseHeader) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*ResponseHeader) ProtoMessage() {}
+
+func (x *ResponseHeader) ProtoReflect() protoreflect.Message {
+	mi := &file_wire_proto_msgTypes[1]
+	if x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use ResponseHeader.ProtoReflect.Descriptor instead.
+func (*ResponseHeader) Descriptor() ([]byte, []int) {
+	return file_wire_proto_rawDescGZIP(), []int{1}
+}
+
+func (x *ResponseHeader) GetId() uint64 {
+	if x != nil && x.Id != nil {
+		return *x.Id
+	}
+	return 0
+}
+
+func (x *ResponseHeader) GetError() string {
+	if x != nil && x.Error != nil {
+		return *x.Error
+	}
+	return ""
+}
+
+func (x *ResponseHeader) GetRawResponseLen() uint32 {
+	if x != nil && x.RawResponseLen != nil {
+		return *x.RawResponseLen
+	}
+	return 0
+}
+
+var File_wire_proto protoreflect.FileDescriptor
+
+const file_wire_proto_rawDesc = "" +
+	"\n" +
+	"\n" +
+	"wire.proto\x12\rprotorpc.wire\"_\n" +
+	"\rRequestHeader\x12\x0e\n" +
+	"\x02id\x18\x01 \x02(\x04R\x02id\x12\x16\n" +
+	"\x06method\x18\x02 \x02(\tR\x06method\x12&\n" +
+	"\x0fraw_request_len\x18\x03 \x02(\rR\rrawRequestLen\"`\n" +
+	"\x0eResponseHeader\x12\x0e\n" +
+	"\x02id\x18\x01 \x02(\x04R\x02id\x12\x14\n" +
+	"\x05error\x18\x02 \x02(\tR\x05error\x12(\n" +
+	"\x10raw_response_len\x18\x03 \x02(\rR\x0erawResponseLen*.\n" +
+	"\x05Const\x12\b\n" +
+	"\x04ZERO\x10\x00\x12\x1b\n" +
+	"\x16MAX_REQUEST_HEADER_LEN\x10\x80\bB\x0fZ\rprotorpc.wire"
+
+var (
+	file_wire_proto_rawDescOnce sync.Once
+	file_wire_proto_rawDescData []byte
+)
+
+func file_wire_proto_rawDescGZIP() []byte {
+	file_wire_proto_rawDescOnce.Do(func() {
+		file_wire_proto_rawDescData = protoimpl.X.CompressGZIP(unsafe.Slice(unsafe.StringData(file_wire_proto_rawDesc), len(file_wire_proto_rawDesc)))
+	})
+	return file_wire_proto_rawDescData
+}
+
+var file_wire_proto_enumTypes = make([]protoimpl.EnumInfo, 1)
+var file_wire_proto_msgTypes = make([]protoimpl.MessageInfo, 2)
+var file_wire_proto_goTypes = []any{
+	(Const)(0),             // 0: protorpc.wire.Const
+	(*RequestHeader)(nil),  // 1: protorpc.wire.RequestHeader
+	(*ResponseHeader)(nil), // 2: protorpc.wire.ResponseHeader
+}
+var file_wire_proto_depIdxs = []int32{
+	0, // [0:0] is the sub-list for method output_type
+	0, // [0:0] is the sub-list for method input_type
+	0, // [0:0] is the sub-list for extension type_name
+	0, // [0:0] is the sub-list for extension extendee
+	0, // [0:0] is the sub-list for field type_name
+}
+
+func init() { file_wire_proto_init() }
+func file_wire_proto_init() {
+	if File_wire_proto != nil {
+		return
+	}
+	type x struct{}
+	out := protoimpl.TypeBuilder{
+		File: protoimpl.DescBuilder{
+			GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
+			RawDescriptor: unsafe.Slice(unsafe.StringData(file_wire_proto_rawDesc), len(file_wire_proto_rawDesc)),
+			NumEnums:      1,
+			NumMessages:   2,
+			NumExtensions: 0,
+			NumServices:   0,
+		},
+		GoTypes:           file_wire_proto_goTypes,
+		DependencyIndexes: file_wire_proto_depIdxs,
+		EnumInfos:         file_wire_proto_enumTypes,
+		MessageInfos:      file_wire_proto_msgTypes,
+	}.Build()
+	File_wire_proto = out.File
+	file_wire_proto_goTypes = nil
+	file_wire_proto_depIdxs = nil
+}

core/protorpc/wire.pb/wire.proto

@@ -0,0 +1,50 @@
+// Copyright 2013 <chaishushan{AT}gmail.com>. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+syntax = "proto2";
+
+//
+//	protorpc wire format wrapper
+//
+//	0. Frame Format
+//	len : uvarint64
+//	data: byte[len]
+//
+//	1. Client Send Request
+//	Send RequestHeader: sendFrame(zsock, hdr, len(hdr))
+//	Send Request: sendFrame(zsock, body, hdr.snappy_compressed_request_len)
+//
+//	2. Server Recv Request
+//	Recv RequestHeader: recvFrame(zsock, hdr, max_hdr_len, 0)
+//	Recv Request: recvFrame(zsock, body, hdr.snappy_compressed_request_len, 0)
+//
+//	3. Server Send Response
+//	Send ResponseHeader: sendFrame(zsock, hdr, len(hdr))
+//	Send Response: sendFrame(zsock, body, hdr.snappy_compressed_response_len)
+//
+//	4. Client Recv Response
+//	Recv ResponseHeader: recvFrame(zsock, hdr, max_hdr_len, 0)
+//	Recv Response: recvFrame(zsock, body, hdr.snappy_compressed_response_len, 0)
+//
+package protorpc.wire;
+option go_package = "protorpc.wire";
+
+enum Const {
+	ZERO = 0;
+	MAX_REQUEST_HEADER_LEN = 1024;
+}
+
+message RequestHeader {
+	required uint64 id = 1;
+	required string method = 2;
+
+	required uint32 raw_request_len = 3;
+}
+
+message ResponseHeader {
+	required uint64 id = 1;
+	required string error = 2;
+
+	required uint32 raw_response_len = 3;
+}

core/server/gen/libcore.proto

@@ -1,8 +1,7 @@
 syntax = "proto2";
 
 package libcore;
-option go_package = "grpc_server/gen";
-option optimize_for = LITE_RUNTIME;
+option go_package = "./;gen";
 
 service LibcoreService {
   rpc Start(LoadConfigReq) returns (ErrorResp);

core/server/gen/libcore_grpc.pb.go

@@ -1,691 +0,0 @@
-// Code generated by protoc-gen-go-grpc. DO NOT EDIT.
-// versions:
-// - protoc-gen-go-grpc v1.5.1
-// - protoc             v5.29.3
-// source: libcore.proto
-
-package gen
-
-import (
-	context "context"
-	grpc "google.golang.org/grpc"
-	codes "google.golang.org/grpc/codes"
-	status "google.golang.org/grpc/status"
-)
-
-// This is a compile-time assertion to ensure that this generated file
-// is compatible with the grpc package it is being compiled against.
-// Requires gRPC-Go v1.64.0 or later.
-const _ = grpc.SupportPackageIsVersion9
-
-const (
-	LibcoreService_Start_FullMethodName               = "/libcore.LibcoreService/Start"
-	LibcoreService_Stop_FullMethodName                = "/libcore.LibcoreService/Stop"
-	LibcoreService_CheckConfig_FullMethodName         = "/libcore.LibcoreService/CheckConfig"
-	LibcoreService_Test_FullMethodName                = "/libcore.LibcoreService/Test"
-	LibcoreService_StopTest_FullMethodName            = "/libcore.LibcoreService/StopTest"
-	LibcoreService_QueryURLTest_FullMethodName        = "/libcore.LibcoreService/QueryURLTest"
-	LibcoreService_QueryStats_FullMethodName          = "/libcore.LibcoreService/QueryStats"
-	LibcoreService_ListConnections_FullMethodName     = "/libcore.LibcoreService/ListConnections"
-	LibcoreService_GetGeoIPList_FullMethodName        = "/libcore.LibcoreService/GetGeoIPList"
-	LibcoreService_GetGeoSiteList_FullMethodName      = "/libcore.LibcoreService/GetGeoSiteList"
-	LibcoreService_CompileGeoIPToSrs_FullMethodName   = "/libcore.LibcoreService/CompileGeoIPToSrs"
-	LibcoreService_CompileGeoSiteToSrs_FullMethodName = "/libcore.LibcoreService/CompileGeoSiteToSrs"
-	LibcoreService_SetSystemDNS_FullMethodName        = "/libcore.LibcoreService/SetSystemDNS"
-	LibcoreService_IsPrivileged_FullMethodName        = "/libcore.LibcoreService/IsPrivileged"
-	LibcoreService_SpeedTest_FullMethodName           = "/libcore.LibcoreService/SpeedTest"
-	LibcoreService_QuerySpeedTest_FullMethodName      = "/libcore.LibcoreService/QuerySpeedTest"
-)
-
-// LibcoreServiceClient is the client API for LibcoreService service.
-//
-// For semantics around ctx use and closing/ending streaming RPCs, please refer to https://pkg.go.dev/google.golang.org/grpc/?tab=doc#ClientConn.NewStream.
-type LibcoreServiceClient interface {
-	Start(ctx context.Context, in *LoadConfigReq, opts ...grpc.CallOption) (*ErrorResp, error)
-	Stop(ctx context.Context, in *EmptyReq, opts ...grpc.CallOption) (*ErrorResp, error)
-	CheckConfig(ctx context.Context, in *LoadConfigReq, opts ...grpc.CallOption) (*ErrorResp, error)
-	Test(ctx context.Context, in *TestReq, opts ...grpc.CallOption) (*TestResp, error)
-	StopTest(ctx context.Context, in *EmptyReq, opts ...grpc.CallOption) (*EmptyResp, error)
-	QueryURLTest(ctx context.Context, in *EmptyReq, opts ...grpc.CallOption) (*QueryURLTestResponse, error)
-	QueryStats(ctx context.Context, in *EmptyReq, opts ...grpc.CallOption) (*QueryStatsResp, error)
-	ListConnections(ctx context.Context, in *EmptyReq, opts ...grpc.CallOption) (*ListConnectionsResp, error)
-	GetGeoIPList(ctx context.Context, in *GeoListRequest, opts ...grpc.CallOption) (*GetGeoIPListResponse, error)
-	GetGeoSiteList(ctx context.Context, in *GeoListRequest, opts ...grpc.CallOption) (*GetGeoSiteListResponse, error)
-	CompileGeoIPToSrs(ctx context.Context, in *CompileGeoIPToSrsRequest, opts ...grpc.CallOption) (*EmptyResp, error)
-	CompileGeoSiteToSrs(ctx context.Context, in *CompileGeoSiteToSrsRequest, opts ...grpc.CallOption) (*EmptyResp, error)
-	SetSystemDNS(ctx context.Context, in *SetSystemDNSRequest, opts ...grpc.CallOption) (*EmptyResp, error)
-	IsPrivileged(ctx context.Context, in *EmptyReq, opts ...grpc.CallOption) (*IsPrivilegedResponse, error)
-	SpeedTest(ctx context.Context, in *SpeedTestRequest, opts ...grpc.CallOption) (*SpeedTestResponse, error)
-	QuerySpeedTest(ctx context.Context, in *EmptyReq, opts ...grpc.CallOption) (*QuerySpeedTestResponse, error)
-}
-
-type libcoreServiceClient struct {
-	cc grpc.ClientConnInterface
-}
-
-func NewLibcoreServiceClient(cc grpc.ClientConnInterface) LibcoreServiceClient {
-	return &libcoreServiceClient{cc}
-}
-
-func (c *libcoreServiceClient) Start(ctx context.Context, in *LoadConfigReq, opts ...grpc.CallOption) (*ErrorResp, error) {
-	cOpts := append([]grpc.CallOption{grpc.StaticMethod()}, opts...)
-	out := new(ErrorResp)
-	err := c.cc.Invoke(ctx, LibcoreService_Start_FullMethodName, in, out, cOpts...)
-	if err != nil {
-		return nil, err
-	}
-	return out, nil
-}
-
-func (c *libcoreServiceClient) Stop(ctx context.Context, in *EmptyReq, opts ...grpc.CallOption) (*ErrorResp, error) {
-	cOpts := append([]grpc.CallOption{grpc.StaticMethod()}, opts...)
-	out := new(ErrorResp)
-	err := c.cc.Invoke(ctx, LibcoreService_Stop_FullMethodName, in, out, cOpts...)
-	if err != nil {
-		return nil, err
-	}
-	return out, nil
-}
-
-func (c *libcoreServiceClient) CheckConfig(ctx context.Context, in *LoadConfigReq, opts ...grpc.CallOption) (*ErrorResp, error) {
-	cOpts := append([]grpc.CallOption{grpc.StaticMethod()}, opts...)
-	out := new(ErrorResp)
-	err := c.cc.Invoke(ctx, LibcoreService_CheckConfig_FullMethodName, in, out, cOpts...)
-	if err != nil {
-		return nil, err
-	}
-	return out, nil
-}
-
-func (c *libcoreServiceClient) Test(ctx context.Context, in *TestReq, opts ...grpc.CallOption) (*TestResp, error) {
-	cOpts := append([]grpc.CallOption{grpc.StaticMethod()}, opts...)
-	out := new(TestResp)
-	err := c.cc.Invoke(ctx, LibcoreService_Test_FullMethodName, in, out, cOpts...)
-	if err != nil {
-		return nil, err
-	}
-	return out, nil
-}
-
-func (c *libcoreServiceClient) StopTest(ctx context.Context, in *EmptyReq, opts ...grpc.CallOption) (*EmptyResp, error) {
-	cOpts := append([]grpc.CallOption{grpc.StaticMethod()}, opts...)
-	out := new(EmptyResp)
-	err := c.cc.Invoke(ctx, LibcoreService_StopTest_FullMethodName, in, out, cOpts...)
-	if err != nil {
-		return nil, err
-	}
-	return out, nil
-}
-
-func (c *libcoreServiceClient) QueryURLTest(ctx context.Context, in *EmptyReq, opts ...grpc.CallOption) (*QueryURLTestResponse, error) {
-	cOpts := append([]grpc.CallOption{grpc.StaticMethod()}, opts...)
-	out := new(QueryURLTestResponse)
-	err := c.cc.Invoke(ctx, LibcoreService_QueryURLTest_FullMethodName, in, out, cOpts...)
-	if err != nil {
-		return nil, err
-	}
-	return out, nil
-}
-
-func (c *libcoreServiceClient) QueryStats(ctx context.Context, in *EmptyReq, opts ...grpc.CallOption) (*QueryStatsResp, error) {
-	cOpts := append([]grpc.CallOption{grpc.StaticMethod()}, opts...)
-	out := new(QueryStatsResp)
-	err := c.cc.Invoke(ctx, LibcoreService_QueryStats_FullMethodName, in, out, cOpts...)
-	if err != nil {
-		return nil, err
-	}
-	return out, nil
-}
-
-func (c *libcoreServiceClient) ListConnections(ctx context.Context, in *EmptyReq, opts ...grpc.CallOption) (*ListConnectionsResp, error) {
-	cOpts := append([]grpc.CallOption{grpc.StaticMethod()}, opts...)
-	out := new(ListConnectionsResp)
-	err := c.cc.Invoke(ctx, LibcoreService_ListConnections_FullMethodName, in, out, cOpts...)
-	if err != nil {
-		return nil, err
-	}
-	return out, nil
-}
-
-func (c *libcoreServiceClient) GetGeoIPList(ctx context.Context, in *GeoListRequest, opts ...grpc.CallOption) (*GetGeoIPListResponse, error) {
-	cOpts := append([]grpc.CallOption{grpc.StaticMethod()}, opts...)
-	out := new(GetGeoIPListResponse)
-	err := c.cc.Invoke(ctx, LibcoreService_GetGeoIPList_FullMethodName, in, out, cOpts...)
-	if err != nil {
-		return nil, err
-	}
-	return out, nil
-}
-
-func (c *libcoreServiceClient) GetGeoSiteList(ctx context.Context, in *GeoListRequest, opts ...grpc.CallOption) (*GetGeoSiteListResponse, error) {
-	cOpts := append([]grpc.CallOption{grpc.StaticMethod()}, opts...)
-	out := new(GetGeoSiteListResponse)
-	err := c.cc.Invoke(ctx, LibcoreService_GetGeoSiteList_FullMethodName, in, out, cOpts...)
-	if err != nil {
-		return nil, err
-	}
-	return out, nil
-}
-
-func (c *libcoreServiceClient) CompileGeoIPToSrs(ctx context.Context, in *CompileGeoIPToSrsRequest, opts ...grpc.CallOption) (*EmptyResp, error) {
-	cOpts := append([]grpc.CallOption{grpc.StaticMethod()}, opts...)
-	out := new(EmptyResp)
-	err := c.cc.Invoke(ctx, LibcoreService_CompileGeoIPToSrs_FullMethodName, in, out, cOpts...)
-	if err != nil {
-		return nil, err
-	}
-	return out, nil
-}
-
-func (c *libcoreServiceClient) CompileGeoSiteToSrs(ctx context.Context, in *CompileGeoSiteToSrsRequest, opts ...grpc.CallOption) (*EmptyResp, error) {
-	cOpts := append([]grpc.CallOption{grpc.StaticMethod()}, opts...)
-	out := new(EmptyResp)
-	err := c.cc.Invoke(ctx, LibcoreService_CompileGeoSiteToSrs_FullMethodName, in, out, cOpts...)
-	if err != nil {
-		return nil, err
-	}
-	return out, nil
-}
-
-func (c *libcoreServiceClient) SetSystemDNS(ctx context.Context, in *SetSystemDNSRequest, opts ...grpc.CallOption) (*EmptyResp, error) {
-	cOpts := append([]grpc.CallOption{grpc.StaticMethod()}, opts...)
-	out := new(EmptyResp)
-	err := c.cc.Invoke(ctx, LibcoreService_SetSystemDNS_FullMethodName, in, out, cOpts...)
-	if err != nil {
-		return nil, err
-	}
-	return out, nil
-}
-
-func (c *libcoreServiceClient) IsPrivileged(ctx context.Context, in *EmptyReq, opts ...grpc.CallOption) (*IsPrivilegedResponse, error) {
-	cOpts := append([]grpc.CallOption{grpc.StaticMethod()}, opts...)
-	out := new(IsPrivilegedResponse)
-	err := c.cc.Invoke(ctx, LibcoreService_IsPrivileged_FullMethodName, in, out, cOpts...)
-	if err != nil {
-		return nil, err
-	}
-	return out, nil
-}
-
-func (c *libcoreServiceClient) SpeedTest(ctx context.Context, in *SpeedTestRequest, opts ...grpc.CallOption) (*SpeedTestResponse, error) {
-	cOpts := append([]grpc.CallOption{grpc.StaticMethod()}, opts...)
-	out := new(SpeedTestResponse)
-	err := c.cc.Invoke(ctx, LibcoreService_SpeedTest_FullMethodName, in, out, cOpts...)
-	if err != nil {
-		return nil, err
-	}
-	return out, nil
-}
-
-func (c *libcoreServiceClient) QuerySpeedTest(ctx context.Context, in *EmptyReq, opts ...grpc.CallOption) (*QuerySpeedTestResponse, error) {
-	cOpts := append([]grpc.CallOption{grpc.StaticMethod()}, opts...)
-	out := new(QuerySpeedTestResponse)
-	err := c.cc.Invoke(ctx, LibcoreService_QuerySpeedTest_FullMethodName, in, out, cOpts...)
-	if err != nil {
-		return nil, err
-	}
-	return out, nil
-}
-
-// LibcoreServiceServer is the server API for LibcoreService service.
-// All implementations must embed UnimplementedLibcoreServiceServer
-// for forward compatibility.
-type LibcoreServiceServer interface {
-	Start(context.Context, *LoadConfigReq) (*ErrorResp, error)
-	Stop(context.Context, *EmptyReq) (*ErrorResp, error)
-	CheckConfig(context.Context, *LoadConfigReq) (*ErrorResp, error)
-	Test(context.Context, *TestReq) (*TestResp, error)
-	StopTest(context.Context, *EmptyReq) (*EmptyResp, error)
-	QueryURLTest(context.Context, *EmptyReq) (*QueryURLTestResponse, error)
-	QueryStats(context.Context, *EmptyReq) (*QueryStatsResp, error)
-	ListConnections(context.Context, *EmptyReq) (*ListConnectionsResp, error)
-	GetGeoIPList(context.Context, *GeoListRequest) (*GetGeoIPListResponse, error)
-	GetGeoSiteList(context.Context, *GeoListRequest) (*GetGeoSiteListResponse, error)
-	CompileGeoIPToSrs(context.Context, *CompileGeoIPToSrsRequest) (*EmptyResp, error)
-	CompileGeoSiteToSrs(context.Context, *CompileGeoSiteToSrsRequest) (*EmptyResp, error)
-	SetSystemDNS(context.Context, *SetSystemDNSRequest) (*EmptyResp, error)
-	IsPrivileged(context.Context, *EmptyReq) (*IsPrivilegedResponse, error)
-	SpeedTest(context.Context, *SpeedTestRequest) (*SpeedTestResponse, error)
-	QuerySpeedTest(context.Context, *EmptyReq) (*QuerySpeedTestResponse, error)
-	mustEmbedUnimplementedLibcoreServiceServer()
-}
-
-// UnimplementedLibcoreServiceServer must be embedded to have
-// forward compatible implementations.
-//
-// NOTE: this should be embedded by value instead of pointer to avoid a nil
-// pointer dereference when methods are called.
-type UnimplementedLibcoreServiceServer struct{}
-
-func (UnimplementedLibcoreServiceServer) Start(context.Context, *LoadConfigReq) (*ErrorResp, error) {
-	return nil, status.Errorf(codes.Unimplemented, "method Start not implemented")
-}
-func (UnimplementedLibcoreServiceServer) Stop(context.Context, *EmptyReq) (*ErrorResp, error) {
-	return nil, status.Errorf(codes.Unimplemented, "method Stop not implemented")
-}
-func (UnimplementedLibcoreServiceServer) CheckConfig(context.Context, *LoadConfigReq) (*ErrorResp, error) {
-	return nil, status.Errorf(codes.Unimplemented, "method CheckConfig not implemented")
-}
-func (UnimplementedLibcoreServiceServer) Test(context.Context, *TestReq) (*TestResp, error) {
-	return nil, status.Errorf(codes.Unimplemented, "method Test not implemented")
-}
-func (UnimplementedLibcoreServiceServer) StopTest(context.Context, *EmptyReq) (*EmptyResp, error) {
-	return nil, status.Errorf(codes.Unimplemented, "method StopTest not implemented")
-}
-func (UnimplementedLibcoreServiceServer) QueryURLTest(context.Context, *EmptyReq) (*QueryURLTestResponse, error) {
-	return nil, status.Errorf(codes.Unimplemented, "method QueryURLTest not implemented")
-}
-func (UnimplementedLibcoreServiceServer) QueryStats(context.Context, *EmptyReq) (*QueryStatsResp, error) {
-	return nil, status.Errorf(codes.Unimplemented, "method QueryStats not implemented")
-}
-func (UnimplementedLibcoreServiceServer) ListConnections(context.Context, *EmptyReq) (*ListConnectionsResp, error) {
-	return nil, status.Errorf(codes.Unimplemented, "method ListConnections not implemented")
-}
-func (UnimplementedLibcoreServiceServer) GetGeoIPList(context.Context, *GeoListRequest) (*GetGeoIPListResponse, error) {
-	return nil, status.Errorf(codes.Unimplemented, "method GetGeoIPList not implemented")
-}
-func (UnimplementedLibcoreServiceServer) GetGeoSiteList(context.Context, *GeoListRequest) (*GetGeoSiteListResponse, error) {
-	return nil, status.Errorf(codes.Unimplemented, "method GetGeoSiteList not implemented")
-}
-func (UnimplementedLibcoreServiceServer) CompileGeoIPToSrs(context.Context, *CompileGeoIPToSrsRequest) (*EmptyResp, error) {
-	return nil, status.Errorf(codes.Unimplemented, "method CompileGeoIPToSrs not implemented")
-}
-func (UnimplementedLibcoreServiceServer) CompileGeoSiteToSrs(context.Context, *CompileGeoSiteToSrsRequest) (*EmptyResp, error) {
-	return nil, status.Errorf(codes.Unimplemented, "method CompileGeoSiteToSrs not implemented")
-}
-func (UnimplementedLibcoreServiceServer) SetSystemDNS(context.Context, *SetSystemDNSRequest) (*EmptyResp, error) {
-	return nil, status.Errorf(codes.Unimplemented, "method SetSystemDNS not implemented")
-}
-func (UnimplementedLibcoreServiceServer) IsPrivileged(context.Context, *EmptyReq) (*IsPrivilegedResponse, error) {
-	return nil, status.Errorf(codes.Unimplemented, "method IsPrivileged not implemented")
-}
-func (UnimplementedLibcoreServiceServer) SpeedTest(context.Context, *SpeedTestRequest) (*SpeedTestResponse, error) {
-	return nil, status.Errorf(codes.Unimplemented, "method SpeedTest not implemented")
-}
-func (UnimplementedLibcoreServiceServer) QuerySpeedTest(context.Context, *EmptyReq) (*QuerySpeedTestResponse, error) {
-	return nil, status.Errorf(codes.Unimplemented, "method QuerySpeedTest not implemented")
-}
-func (UnimplementedLibcoreServiceServer) mustEmbedUnimplementedLibcoreServiceServer() {}
-func (UnimplementedLibcoreServiceServer) testEmbeddedByValue()                        {}
-
-// UnsafeLibcoreServiceServer may be embedded to opt out of forward compatibility for this service.
-// Use of this interface is not recommended, as added methods to LibcoreServiceServer will
-// result in compilation errors.
-type UnsafeLibcoreServiceServer interface {
-	mustEmbedUnimplementedLibcoreServiceServer()
-}
-
-func RegisterLibcoreServiceServer(s grpc.ServiceRegistrar, srv LibcoreServiceServer) {
-	// If the following call pancis, it indicates UnimplementedLibcoreServiceServer was
-	// embedded by pointer and is nil.  This will cause panics if an
-	// unimplemented method is ever invoked, so we test this at initialization
-	// time to prevent it from happening at runtime later due to I/O.
-	if t, ok := srv.(interface{ testEmbeddedByValue() }); ok {
-		t.testEmbeddedByValue()
-	}
-	s.RegisterService(&LibcoreService_ServiceDesc, srv)
-}
-
-func _LibcoreService_Start_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
-	in := new(LoadConfigReq)
-	if err := dec(in); err != nil {
-		return nil, err
-	}
-	if interceptor == nil {
-		return srv.(LibcoreServiceServer).Start(ctx, in)
-	}
-	info := &grpc.UnaryServerInfo{
-		Server:     srv,
-		FullMethod: LibcoreService_Start_FullMethodName,
-	}
-	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
-		return srv.(LibcoreServiceServer).Start(ctx, req.(*LoadConfigReq))
-	}
-	return interceptor(ctx, in, info, handler)
-}
-
-func _LibcoreService_Stop_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
-	in := new(EmptyReq)
-	if err := dec(in); err != nil {
-		return nil, err
-	}
-	if interceptor == nil {
-		return srv.(LibcoreServiceServer).Stop(ctx, in)
-	}
-	info := &grpc.UnaryServerInfo{
-		Server:     srv,
-		FullMethod: LibcoreService_Stop_FullMethodName,
-	}
-	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
-		return srv.(LibcoreServiceServer).Stop(ctx, req.(*EmptyReq))
-	}
-	return interceptor(ctx, in, info, handler)
-}
-
-func _LibcoreService_CheckConfig_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
-	in := new(LoadConfigReq)
-	if err := dec(in); err != nil {
-		return nil, err
-	}
-	if interceptor == nil {
-		return srv.(LibcoreServiceServer).CheckConfig(ctx, in)
-	}
-	info := &grpc.UnaryServerInfo{
-		Server:     srv,
-		FullMethod: LibcoreService_CheckConfig_FullMethodName,
-	}
-	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
-		return srv.(LibcoreServiceServer).CheckConfig(ctx, req.(*LoadConfigReq))
-	}
-	return interceptor(ctx, in, info, handler)
-}
-
-func _LibcoreService_Test_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
-	in := new(TestReq)
-	if err := dec(in); err != nil {
-		return nil, err
-	}
-	if interceptor == nil {
-		return srv.(LibcoreServiceServer).Test(ctx, in)
-	}
-	info := &grpc.UnaryServerInfo{
-		Server:     srv,
-		FullMethod: LibcoreService_Test_FullMethodName,
-	}
-	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
-		return srv.(LibcoreServiceServer).Test(ctx, req.(*TestReq))
-	}
-	return interceptor(ctx, in, info, handler)
-}
-
-func _LibcoreService_StopTest_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
-	in := new(EmptyReq)
-	if err := dec(in); err != nil {
-		return nil, err
-	}
-	if interceptor == nil {
-		return srv.(LibcoreServiceServer).StopTest(ctx, in)
-	}
-	info := &grpc.UnaryServerInfo{
-		Server:     srv,
-		FullMethod: LibcoreService_StopTest_FullMethodName,
-	}
-	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
-		return srv.(LibcoreServiceServer).StopTest(ctx, req.(*EmptyReq))
-	}
-	return interceptor(ctx, in, info, handler)
-}
-
-func _LibcoreService_QueryURLTest_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
-	in := new(EmptyReq)
-	if err := dec(in); err != nil {
-		return nil, err
-	}
-	if interceptor == nil {
-		return srv.(LibcoreServiceServer).QueryURLTest(ctx, in)
-	}
-	info := &grpc.UnaryServerInfo{
-		Server:     srv,
-		FullMethod: LibcoreService_QueryURLTest_FullMethodName,
-	}
-	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
-		return srv.(LibcoreServiceServer).QueryURLTest(ctx, req.(*EmptyReq))
-	}
-	return interceptor(ctx, in, info, handler)
-}
-
-func _LibcoreService_QueryStats_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
-	in := new(EmptyReq)
-	if err := dec(in); err != nil {
-		return nil, err
-	}
-	if interceptor == nil {
-		return srv.(LibcoreServiceServer).QueryStats(ctx, in)
-	}
-	info := &grpc.UnaryServerInfo{
-		Server:     srv,
-		FullMethod: LibcoreService_QueryStats_FullMethodName,
-	}
-	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
-		return srv.(LibcoreServiceServer).QueryStats(ctx, req.(*EmptyReq))
-	}
-	return interceptor(ctx, in, info, handler)
-}
-
-func _LibcoreService_ListConnections_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
-	in := new(EmptyReq)
-	if err := dec(in); err != nil {
-		return nil, err
-	}
-	if interceptor == nil {
-		return srv.(LibcoreServiceServer).ListConnections(ctx, in)
-	}
-	info := &grpc.UnaryServerInfo{
-		Server:     srv,
-		FullMethod: LibcoreService_ListConnections_FullMethodName,
-	}
-	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
-		return srv.(LibcoreServiceServer).ListConnections(ctx, req.(*EmptyReq))
-	}
-	return interceptor(ctx, in, info, handler)
-}
-
-func _LibcoreService_GetGeoIPList_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
-	in := new(GeoListRequest)
-	if err := dec(in); err != nil {
-		return nil, err
-	}
-	if interceptor == nil {
-		return srv.(LibcoreServiceServer).GetGeoIPList(ctx, in)
-	}
-	info := &grpc.UnaryServerInfo{
-		Server:     srv,
-		FullMethod: LibcoreService_GetGeoIPList_FullMethodName,
-	}
-	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
-		return srv.(LibcoreServiceServer).GetGeoIPList(ctx, req.(*GeoListRequest))
-	}
-	return interceptor(ctx, in, info, handler)
-}
-
-func _LibcoreService_GetGeoSiteList_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
-	in := new(GeoListRequest)
-	if err := dec(in); err != nil {
-		return nil, err
-	}
-	if interceptor == nil {
-		return srv.(LibcoreServiceServer).GetGeoSiteList(ctx, in)
-	}
-	info := &grpc.UnaryServerInfo{
-		Server:     srv,
-		FullMethod: LibcoreService_GetGeoSiteList_FullMethodName,
-	}
-	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
-		return srv.(LibcoreServiceServer).GetGeoSiteList(ctx, req.(*GeoListRequest))
-	}
-	return interceptor(ctx, in, info, handler)
-}
-
-func _LibcoreService_CompileGeoIPToSrs_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
-	in := new(CompileGeoIPToSrsRequest)
-	if err := dec(in); err != nil {
-		return nil, err
-	}
-	if interceptor == nil {
-		return srv.(LibcoreServiceServer).CompileGeoIPToSrs(ctx, in)
-	}
-	info := &grpc.UnaryServerInfo{
-		Server:     srv,
-		FullMethod: LibcoreService_CompileGeoIPToSrs_FullMethodName,
-	}
-	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
-		return srv.(LibcoreServiceServer).CompileGeoIPToSrs(ctx, req.(*CompileGeoIPToSrsRequest))
-	}
-	return interceptor(ctx, in, info, handler)
-}
-
-func _LibcoreService_CompileGeoSiteToSrs_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
-	in := new(CompileGeoSiteToSrsRequest)
-	if err := dec(in); err != nil {
-		return nil, err
-	}
-	if interceptor == nil {
-		return srv.(LibcoreServiceServer).CompileGeoSiteToSrs(ctx, in)
-	}
-	info := &grpc.UnaryServerInfo{
-		Server:     srv,
-		FullMethod: LibcoreService_CompileGeoSiteToSrs_FullMethodName,
-	}
-	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
-		return srv.(LibcoreServiceServer).CompileGeoSiteToSrs(ctx, req.(*CompileGeoSiteToSrsRequest))
-	}
-	return interceptor(ctx, in, info, handler)
-}
-
-func _LibcoreService_SetSystemDNS_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
-	in := new(SetSystemDNSRequest)
-	if err := dec(in); err != nil {
-		return nil, err
-	}
-	if interceptor == nil {
-		return srv.(LibcoreServiceServer).SetSystemDNS(ctx, in)
-	}
-	info := &grpc.UnaryServerInfo{
-		Server:     srv,
-		FullMethod: LibcoreService_SetSystemDNS_FullMethodName,
-	}
-	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
-		return srv.(LibcoreServiceServer).SetSystemDNS(ctx, req.(*SetSystemDNSRequest))
-	}
-	return interceptor(ctx, in, info, handler)
-}
-
-func _LibcoreService_IsPrivileged_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
-	in := new(EmptyReq)
-	if err := dec(in); err != nil {
-		return nil, err
-	}
-	if interceptor == nil {
-		return srv.(LibcoreServiceServer).IsPrivileged(ctx, in)
-	}
-	info := &grpc.UnaryServerInfo{
-		Server:     srv,
-		FullMethod: LibcoreService_IsPrivileged_FullMethodName,
-	}
-	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
-		return srv.(LibcoreServiceServer).IsPrivileged(ctx, req.(*EmptyReq))
-	}
-	return interceptor(ctx, in, info, handler)
-}
-
-func _LibcoreService_SpeedTest_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
-	in := new(SpeedTestRequest)
-	if err := dec(in); err != nil {
-		return nil, err
-	}
-	if interceptor == nil {
-		return srv.(LibcoreServiceServer).SpeedTest(ctx, in)
-	}
-	info := &grpc.UnaryServerInfo{
-		Server:     srv,
-		FullMethod: LibcoreService_SpeedTest_FullMethodName,
-	}
-	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
-		return srv.(LibcoreServiceServer).SpeedTest(ctx, req.(*SpeedTestRequest))
-	}
-	return interceptor(ctx, in, info, handler)
-}
-
-func _LibcoreService_QuerySpeedTest_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
-	in := new(EmptyReq)
-	if err := dec(in); err != nil {
-		return nil, err
-	}
-	if interceptor == nil {
-		return srv.(LibcoreServiceServer).QuerySpeedTest(ctx, in)
-	}
-	info := &grpc.UnaryServerInfo{
-		Server:     srv,
-		FullMethod: LibcoreService_QuerySpeedTest_FullMethodName,
-	}
-	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
-		return srv.(LibcoreServiceServer).QuerySpeedTest(ctx, req.(*EmptyReq))
-	}
-	return interceptor(ctx, in, info, handler)
-}
-
-// LibcoreService_ServiceDesc is the grpc.ServiceDesc for LibcoreService service.
-// It's only intended for direct use with grpc.RegisterService,
-// and not to be introspected or modified (even as a copy)
-var LibcoreService_ServiceDesc = grpc.ServiceDesc{
-	ServiceName: "libcore.LibcoreService",
-	HandlerType: (*LibcoreServiceServer)(nil),
-	Methods: []grpc.MethodDesc{
-		{
-			MethodName: "Start",
-			Handler:    _LibcoreService_Start_Handler,
-		},
-		{
-			MethodName: "Stop",
-			Handler:    _LibcoreService_Stop_Handler,
-		},
-		{
-			MethodName: "CheckConfig",
-			Handler:    _LibcoreService_CheckConfig_Handler,
-		},
-		{
-			MethodName: "Test",
-			Handler:    _LibcoreService_Test_Handler,
-		},
-		{
-			MethodName: "StopTest",
-			Handler:    _LibcoreService_StopTest_Handler,
-		},
-		{
-			MethodName: "QueryURLTest",
-			Handler:    _LibcoreService_QueryURLTest_Handler,
-		},
-		{
-			MethodName: "QueryStats",
-			Handler:    _LibcoreService_QueryStats_Handler,
-		},
-		{
-			MethodName: "ListConnections",
-			Handler:    _LibcoreService_ListConnections_Handler,
-		},
-		{
-			MethodName: "GetGeoIPList",
-			Handler:    _LibcoreService_GetGeoIPList_Handler,
-		},
-		{
-			MethodName: "GetGeoSiteList",
-			Handler:    _LibcoreService_GetGeoSiteList_Handler,
-		},
-		{
-			MethodName: "CompileGeoIPToSrs",
-			Handler:    _LibcoreService_CompileGeoIPToSrs_Handler,
-		},
-		{
-			MethodName: "CompileGeoSiteToSrs",
-			Handler:    _LibcoreService_CompileGeoSiteToSrs_Handler,
-		},
-		{
-			MethodName: "SetSystemDNS",
-			Handler:    _LibcoreService_SetSystemDNS_Handler,
-		},
-		{
-			MethodName: "IsPrivileged",
-			Handler:    _LibcoreService_IsPrivileged_Handler,
-		},
-		{
-			MethodName: "SpeedTest",
-			Handler:    _LibcoreService_SpeedTest_Handler,
-		},
-		{
-			MethodName: "QuerySpeedTest",
-			Handler:    _LibcoreService_QuerySpeedTest_Handler,
-		},
-	},
-	Streams:  []grpc.StreamDesc{},
-	Metadata: "libcore.proto",
-}

core/server/go.mod

@@ -2,12 +2,12 @@ module Core
 
 go 1.23.6
 
-toolchain go1.24.4
-
 require (
 	github.com/Mahdi-zarei/speedtest-go v1.7.12
+	github.com/chai2010/protorpc v1.1.4
 	github.com/dustin/go-humanize v1.0.1
 	github.com/gofrs/uuid/v5 v5.3.2
+	github.com/golang/protobuf v1.5.4
 	github.com/google/shlex v0.0.0-20191202100458-e7afc7fbc510
 	github.com/oschwald/maxminddb-golang v1.13.1
 	github.com/sagernet/sing v0.6.11
@@ -16,7 +16,6 @@ require (
 	github.com/sagernet/sing-tun v0.6.9
 	github.com/spf13/cobra v1.9.1
 	golang.org/x/sys v0.34.0
-	google.golang.org/grpc v1.74.2
 	google.golang.org/protobuf v1.36.6
 )
 
@@ -26,6 +25,8 @@ replace github.com/sagernet/sing-dns => github.com/Mahdi-zarei/sing-dns v0.3.0-b
 
 replace github.com/sagernet/wireguard-go => github.com/throneproj/wireguard-go v0.0.1-beta.7.0.20250728063157-408bba78ad26
 
+replace github.com/chai2010/protorpc => ../protorpc
+
 require (
 	github.com/ajg/form v1.5.1 // indirect
 	github.com/andybalholm/brotli v1.0.6 // indirect
@@ -97,6 +98,7 @@ require (
 	golang.org/x/time v0.7.0 // indirect
 	golang.org/x/tools v0.28.0 // indirect
 	golang.zx2c4.com/wintun v0.0.0-20230126152724-0fa3db229ce2 // indirect
-	google.golang.org/genproto/googleapis/rpc v0.0.0-20250528174236-200df99c418a // indirect
+	google.golang.org/genproto/googleapis/rpc v0.0.0-20240227224415-6ceb2ff114de // indirect
+	google.golang.org/grpc v1.63.2 // indirect
 	lukechampine.com/blake3 v1.3.0 // indirect
 )

core/server/go.sum

@@ -24,10 +24,8 @@ github.com/go-chi/chi/v5 v5.2.2 h1:CMwsvRVTbXVytCk1Wd72Zy1LAsAh9GxMmSNWLHCG618=
 github.com/go-chi/chi/v5 v5.2.2/go.mod h1:L2yAIGWB3H+phAw1NxKwWM+7eUH/lU8pOMm5hHcoops=
 github.com/go-chi/render v1.0.3 h1:AsXqd2a1/INaIfUSKq3G5uA8weYx20FOsM7uSoCyyt4=
 github.com/go-chi/render v1.0.3/go.mod h1:/gr3hVkmYR0YlEy3LxCuVRFzEu9Ruok+gFqbIofjao0=
-github.com/go-logr/logr v1.4.3 h1:CjnDlHq8ikf6E492q6eKboGOC0T8CDaOvkHCIg8idEI=
-github.com/go-logr/logr v1.4.3/go.mod h1:9T104GzyrTigFIr8wt5mBrctHMim0Nb2HLGrmQ40KvY=
-github.com/go-logr/stdr v1.2.2 h1:hSWxHoqTgW2S2qGc0LTAI563KZ5YKYRhT3MFKZMbjag=
-github.com/go-logr/stdr v1.2.2/go.mod h1:mMo/vtBO5dYbehREoey6XUKy/eSumjCCveDpRre4VKE=
+github.com/go-logr/logr v1.2.4 h1:g01GSCwiDw2xSZfjJ2/T9M+S6pFdcNtFYsp+Y43HYDQ=
+github.com/go-logr/logr v1.2.4/go.mod h1:jdQByPbusPIv2/zmleS9BjJVeZ6kBagPoEUsqbVz/1A=
 github.com/go-ole/go-ole v1.3.0 h1:Dt6ye7+vXGIKZ7Xtk4s6/xVdGDQynvom7xCFEdWr6uE=
 github.com/go-ole/go-ole v1.3.0/go.mod h1:5LS6F96DhAwUc7C+1HLexzMXY1xGRSryjyPPKW6zv78=
 github.com/go-task/slim-sprig v0.0.0-20230315185526-52ccab3ef572 h1:tfuBGBXKqDEevZMzYi5KSi8KkcZtzBcTgAUUtapy0OI=
@@ -48,8 +46,6 @@ github.com/google/pprof v0.0.0-20231101202521-4ca4178f5c7a h1:fEBsGL/sjAuJrgah5X
 github.com/google/pprof v0.0.0-20231101202521-4ca4178f5c7a/go.mod h1:czg5+yv1E0ZGTi6S6vVK1mke0fV+FaUhNGcd6VRS9Ik=
 github.com/google/shlex v0.0.0-20191202100458-e7afc7fbc510 h1:El6M4kTTCOh6aBiKaUGG7oYTSPP8MxqL4YI3kZKwcP4=
 github.com/google/shlex v0.0.0-20191202100458-e7afc7fbc510/go.mod h1:pupxD2MaaD3pAXIBCelhxNneeOaAeabZDe5s4K6zSpQ=
-github.com/google/uuid v1.6.0 h1:NIvaJDMOsjHA8n1jAhLSgzrAzy1Hgr+hNrb57e+94F0=
-github.com/google/uuid v1.6.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
 github.com/hashicorp/yamux v0.1.2 h1:XtB8kyFOyHXYVFnwT5C3+Bdo8gArse7j2AQ0DA0Uey8=
 github.com/hashicorp/yamux v0.1.2/go.mod h1:C+zze2n6e/7wshOZep2A70/aQU6QBRWJO/G6FT1wIns=
 github.com/inconshreveable/mousetrap v1.1.0 h1:wN+x4NVGpMsO7ErUn/mUI3vEoE6Jt13X2s0bqwp9tc8=
@@ -171,18 +167,6 @@ github.com/zeebo/blake3 v0.2.3 h1:TFoLXsjeXqRNFxSbk35Dk4YtszE/MQQGK10BH4ptoTg=
 github.com/zeebo/blake3 v0.2.3/go.mod h1:mjJjZpnsyIVtVgTOSpJ9vmRE4wgDeyt2HU3qXvvKCaQ=
 github.com/zeebo/pcg v1.0.1 h1:lyqfGeWiv4ahac6ttHs+I5hwtH/+1mrhlCtVNQM2kHo=
 github.com/zeebo/pcg v1.0.1/go.mod h1:09F0S9iiKrwn9rlI5yjLkmrug154/YRW6KnnXVDM/l4=
-go.opentelemetry.io/auto/sdk v1.1.0 h1:cH53jehLUN6UFLY71z+NDOiNJqDdPRaXzTel0sJySYA=
-go.opentelemetry.io/auto/sdk v1.1.0/go.mod h1:3wSPjt5PWp2RhlCcmmOial7AvC4DQqZb7a7wCow3W8A=
-go.opentelemetry.io/otel v1.36.0 h1:UumtzIklRBY6cI/lllNZlALOF5nNIzJVb16APdvgTXg=
-go.opentelemetry.io/otel v1.36.0/go.mod h1:/TcFMXYjyRNh8khOAO9ybYkqaDBb/70aVwkNML4pP8E=
-go.opentelemetry.io/otel/metric v1.36.0 h1:MoWPKVhQvJ+eeXWHFBOPoBOi20jh6Iq2CcCREuTYufE=
-go.opentelemetry.io/otel/metric v1.36.0/go.mod h1:zC7Ks+yeyJt4xig9DEw9kuUFe5C3zLbVjV2PzT6qzbs=
-go.opentelemetry.io/otel/sdk v1.36.0 h1:b6SYIuLRs88ztox4EyrvRti80uXIFy+Sqzoh9kFULbs=
-go.opentelemetry.io/otel/sdk v1.36.0/go.mod h1:+lC+mTgD+MUWfjJubi2vvXWcVxyr9rmlshZni72pXeY=
-go.opentelemetry.io/otel/sdk/metric v1.36.0 h1:r0ntwwGosWGaa0CrSt8cuNuTcccMXERFwHX4dThiPis=
-go.opentelemetry.io/otel/sdk/metric v1.36.0/go.mod h1:qTNOhFDfKRwX0yXOqJYegL5WRaW376QbB7P4Pb0qva4=
-go.opentelemetry.io/otel/trace v1.36.0 h1:ahxWNuqZjpdiFAyrIoQ4GIiAIhxAunQR6MUoKrsNd4w=
-go.opentelemetry.io/otel/trace v1.36.0/go.mod h1:gQ+OnDZzrybY4k4seLzPAWNwVBBVlF2szhehOBB/tGA=
 go.uber.org/goleak v1.3.0 h1:2K3zAYmnTNqV73imy9J1T3WC+gmCePx2hEGkimedGto=
 go.uber.org/goleak v1.3.0/go.mod h1:CoHD4mav9JJNrW/WLlf7HGZPjdw8EucARQHekz1X6bE=
 go.uber.org/multierr v1.11.0 h1:blXXJkSxSSfBVBlC76pxqeO+LN3aDfLQo+309xJstO0=
@@ -227,10 +211,10 @@ golang.org/x/tools v0.28.0 h1:WuB6qZ4RPCQo5aP3WdKZS7i595EdWqWR8vqJTlwTVK8=
 golang.org/x/tools v0.28.0/go.mod h1:dcIOrVd3mfQKTgrDVQHqCPMWy6lnhfhtX3hLXYVLfRw=
 golang.zx2c4.com/wintun v0.0.0-20230126152724-0fa3db229ce2 h1:B82qJJgjvYKsXS9jeunTOisW56dUokqW/FOteYJJ/yg=
 golang.zx2c4.com/wintun v0.0.0-20230126152724-0fa3db229ce2/go.mod h1:deeaetjYA+DHMHg+sMSMI58GrEteJUUzzw7en6TJQcI=
-google.golang.org/genproto/googleapis/rpc v0.0.0-20250528174236-200df99c418a h1:v2PbRU4K3llS09c7zodFpNePeamkAwG3mPrAery9VeE=
-google.golang.org/genproto/googleapis/rpc v0.0.0-20250528174236-200df99c418a/go.mod h1:qQ0YXyHHx3XkvlzUtpXDkS29lDSafHMZBAZDc03LQ3A=
-google.golang.org/grpc v1.74.2 h1:WoosgB65DlWVC9FqI82dGsZhWFNBSLjQ84bjROOpMu4=
-google.golang.org/grpc v1.74.2/go.mod h1:CtQ+BGjaAIXHs/5YS3i473GqwBBa1zGQNevxdeBEXrM=
+google.golang.org/genproto/googleapis/rpc v0.0.0-20240227224415-6ceb2ff114de h1:cZGRis4/ot9uVm639a+rHCUaG0JJHEsdyzSQTMX+suY=
+google.golang.org/genproto/googleapis/rpc v0.0.0-20240227224415-6ceb2ff114de/go.mod h1:H4O17MA/PE9BsGx3w+a+W2VOLLD1Qf7oJneAoU6WktY=
+google.golang.org/grpc v1.63.2 h1:MUeiw1B2maTVZthpU5xvASfTh3LDbxHd6IJ6QQVU+xM=
+google.golang.org/grpc v1.63.2/go.mod h1:WAX/8DgncnokcFUldAxq7GeB5DXHDbMF+lLvDomNkRA=
 google.golang.org/protobuf v1.36.6 h1:z1NpPI8ku2WgiWnf+t9wTPsn6eP1L7ksHUlkfLvd9xY=
 google.golang.org/protobuf v1.36.6/go.mod h1:jduwjTPXsFjZGTmRluh+L6NjiWu7pchiJ2/5YcXBHnY=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=

core/server/main.go

@@ -6,9 +6,7 @@ import (
 	"context"
 	"flag"
 	"fmt"
-	"google.golang.org/grpc"
 	"log"
-	"net"
 	"os"
 	"runtime"
 	runtimeDebug "runtime/debug"
@@ -46,22 +44,12 @@ func RunCore() {
 	}()
 	boxmain.DisableColor()
 
-	// GRPC
-	lis, err := net.Listen("tcp", "127.0.0.1:"+strconv.Itoa(*_port))
+	// RPC
+	fmt.Printf("Core listening at %v\n", "127.0.0.1:"+strconv.Itoa(*_port))
+	err := gen.ListenAndServeLibcoreService("tcp", "127.0.0.1:"+strconv.Itoa(*_port), new(server))
 	if err != nil {
 		log.Fatalf("failed to listen: %v", err)
 	}
-
-	s := grpc.NewServer(
-		grpc.MaxRecvMsgSize(1024*1024*1024), // 1 gigaByte
-		grpc.MaxSendMsgSize(1024*1024*1024), // 1 gigaByte
-	)
-	gen.RegisterLibcoreServiceServer(s, &server{})
-
-	fmt.Printf("Core listening at %v\n", lis.Addr())
-	if err := s.Serve(lis); err != nil {
-		log.Fatalf("failed to serve: %v", err)
-	}
 }
 
 func main() {

core/server/server.go

@@ -31,20 +31,17 @@ var systemProxyAddr metadata.Socksaddr
 var instanceCancel context.CancelFunc
 var debug bool
 
-type server struct {
-	gen.UnimplementedLibcoreServiceServer
-}
+type server int
 
 // To returns a pointer to the given value.
 func To[T any](v T) *T {
 	return &v
 }
 
-func (s *server) Start(ctx context.Context, in *gen.LoadConfigReq) (out *gen.ErrorResp, _ error) {
+func (s *server) Start(in *gen.LoadConfigReq, out *gen.ErrorResp) (_ error) {
 	var err error
 
 	defer func() {
-		out = &gen.ErrorResp{}
 		if err != nil {
 			out.Error = To(err.Error())
 			boxInstance = nil
@@ -107,11 +104,10 @@ func (s *server) Start(ctx context.Context, in *gen.LoadConfigReq) (out *gen.Err
 	return
 }
 
-func (s *server) Stop(ctx context.Context, in *gen.EmptyReq) (out *gen.ErrorResp, _ error) {
+func (s *server) Stop(in *gen.EmptyReq, out *gen.ErrorResp) (_ error) {
 	var err error
 
 	defer func() {
-		out = &gen.ErrorResp{}
 		if err != nil {
 			out.Error = To(err.Error())
 		}
@@ -140,35 +136,35 @@ func (s *server) Stop(ctx context.Context, in *gen.EmptyReq) (out *gen.ErrorResp
 	return
 }
 
-func (s *server) CheckConfig(ctx context.Context, in *gen.LoadConfigReq) (*gen.ErrorResp, error) {
+func (s *server) CheckConfig(in *gen.LoadConfigReq, out *gen.ErrorResp) error {
 	err := boxmain.Check([]byte(*in.CoreConfig))
 	if err != nil {
-		return &gen.ErrorResp{
-			Error: To(err.Error()),
-		}, nil
+		out.Error = To(err.Error())
+		return nil
 	}
-	return &gen.ErrorResp{}, nil
+	return nil
 }
 
-func (s *server) Test(ctx context.Context, in *gen.TestReq) (*gen.TestResp, error) {
+func (s *server) Test(in *gen.TestReq, out *gen.TestResp) error {
 	var testInstance *boxbox.Box
 	var cancel context.CancelFunc
 	var err error
 	var twice = true
 	if *in.TestCurrent {
 		if boxInstance == nil {
-			return &gen.TestResp{Results: []*gen.URLTestResp{{
+			out.Results = []*gen.URLTestResp{{
 				OutboundTag: To("proxy"),
 				LatencyMs:   To(int32(0)),
 				Error:       To("Instance is not running"),
-			}}}, nil
+			}}
+			return nil
 		}
 		testInstance = boxInstance
 		twice = false
 	} else {
 		testInstance, cancel, err = boxmain.Create([]byte(*in.Config))
 		if err != nil {
-			return nil, err
+			return err
 		}
 		defer cancel()
 		defer testInstance.Close()
@@ -199,82 +195,79 @@ func (s *server) Test(ctx context.Context, in *gen.TestReq) (*gen.TestResp, erro
 		})
 	}
 
-	return &gen.TestResp{Results: res}, nil
+	out.Results = res
+	return nil
 }
 
-func (s *server) StopTest(ctx context.Context, in *gen.EmptyReq) (*gen.EmptyResp, error) {
+func (s *server) StopTest(in *gen.EmptyReq, out *gen.EmptyResp) error {
 	cancelTests()
 	testCtx, cancelTests = context.WithCancel(context.Background())
 
-	return &gen.EmptyResp{}, nil
+	return nil
 }
 
-func (s *server) QueryURLTest(ctx context.Context, in *gen.EmptyReq) (*gen.QueryURLTestResponse, error) {
+func (s *server) QueryURLTest(in *gen.EmptyReq, out *gen.QueryURLTestResponse) error {
 	results := URLReporter.Results()
-	resp := &gen.QueryURLTestResponse{}
 	for _, r := range results {
 		errStr := ""
 		if r.Error != nil {
 			errStr = r.Error.Error()
 		}
-		resp.Results = append(resp.Results, &gen.URLTestResp{
+		out.Results = append(out.Results, &gen.URLTestResp{
 			OutboundTag: To(r.Tag),
 			LatencyMs:   To(int32(r.Duration.Milliseconds())),
 			Error:       To(errStr),
 		})
 	}
-	return resp, nil
+	return nil
 }
 
-func (s *server) QueryStats(ctx context.Context, _ *gen.EmptyReq) (*gen.QueryStatsResp, error) {
-	resp := &gen.QueryStatsResp{
-		Ups:   make(map[string]int64),
-		Downs: make(map[string]int64),
-	}
+func (s *server) QueryStats(in *gen.EmptyReq, out *gen.QueryStatsResp) error {
+	out.Ups = make(map[string]int64)
+	out.Downs = make(map[string]int64)
 	if boxInstance != nil {
 		clash := service.FromContext[adapter.ClashServer](boxInstance.Context())
 		if clash != nil {
 			cApi, ok := clash.(*clashapi.Server)
 			if !ok {
 				log.Println("Failed to assert clash server")
-				return nil, E.New("invalid clash server type")
+				return E.New("invalid clash server type")
 			}
 			outbounds := service.FromContext[adapter.OutboundManager](boxInstance.Context())
 			if outbounds == nil {
 				log.Println("Failed to get outbound manager")
-				return nil, E.New("nil outbound manager")
+				return E.New("nil outbound manager")
 			}
 			endpoints := service.FromContext[adapter.EndpointManager](boxInstance.Context())
 			if endpoints == nil {
 				log.Println("Failed to get endpoint manager")
-				return nil, E.New("nil endpoint manager")
+				return E.New("nil endpoint manager")
 			}
-			for _, out := range outbounds.Outbounds() {
-				u, d := cApi.TrafficManager().TotalOutbound(out.Tag())
-				resp.Ups[out.Tag()] = u
-				resp.Downs[out.Tag()] = d
+			for _, ob := range outbounds.Outbounds() {
+				u, d := cApi.TrafficManager().TotalOutbound(ob.Tag())
+				out.Ups[ob.Tag()] = u
+				out.Downs[ob.Tag()] = d
 			}
 			for _, ep := range endpoints.Endpoints() {
 				u, d := cApi.TrafficManager().TotalOutbound(ep.Tag())
-				resp.Ups[ep.Tag()] = u
-				resp.Downs[ep.Tag()] = d
+				out.Ups[ep.Tag()] = u
+				out.Downs[ep.Tag()] = d
 			}
 		}
 	}
-
-	return resp, nil
+	return nil
 }
 
-func (s *server) ListConnections(ctx context.Context, in *gen.EmptyReq) (*gen.ListConnectionsResp, error) {
+func (s *server) ListConnections(in *gen.EmptyReq, out *gen.ListConnectionsResp) error {
 	if boxInstance == nil {
-		return &gen.ListConnectionsResp{}, nil
+		return nil
 	}
 	if service.FromContext[adapter.ClashServer](boxInstance.Context()) == nil {
-		return nil, errors.New("no clash server found")
+		return errors.New("no clash server found")
 	}
 	clash, ok := service.FromContext[adapter.ClashServer](boxInstance.Context()).(*clashapi.Server)
 	if !ok {
-		return nil, errors.New("invalid state, should not be here")
+		return errors.New("invalid state, should not be here")
 	}
 	connections := clash.TrafficManager().Connections()
 
@@ -299,16 +292,14 @@ func (s *server) ListConnections(ctx context.Context, in *gen.EmptyReq) (*gen.Li
 		}
 		res = append(res, r)
 	}
-	out := &gen.ListConnectionsResp{
-		Connections: res,
-	}
-	return out, nil
+	out.Connections = res
+	return nil
 }
 
-func (s *server) GetGeoIPList(ctx context.Context, in *gen.GeoListRequest) (*gen.GetGeoIPListResponse, error) {
+func (s *server) GetGeoIPList(in *gen.GeoListRequest, out *gen.GetGeoIPListResponse) error {
 	resp, err := boxmain.ListGeoip(*in.Path + string(os.PathSeparator) + "geoip.db")
 	if err != nil {
-		return nil, err
+		return err
 	}
 
 	res := make([]string, 0)
@@ -317,13 +308,14 @@ func (s *server) GetGeoIPList(ctx context.Context, in *gen.GeoListRequest) (*gen
 		res = append(res, r)
 	}
 
-	return &gen.GetGeoIPListResponse{Items: res}, nil
+	out.Items = res
+	return nil
 }
 
-func (s *server) GetGeoSiteList(ctx context.Context, in *gen.GeoListRequest) (*gen.GetGeoSiteListResponse, error) {
+func (s *server) GetGeoSiteList(in *gen.GeoListRequest, out *gen.GetGeoSiteListResponse) error {
 	resp, err := boxmain.GeositeList(*in.Path + string(os.PathSeparator) + "geosite.db")
 	if err != nil {
-		return nil, err
+		return err
 	}
 
 	res := make([]string, 0)
@@ -332,42 +324,43 @@ func (s *server) GetGeoSiteList(ctx context.Context, in *gen.GeoListRequest) (*g
 		res = append(res, r)
 	}
 
-	return &gen.GetGeoSiteListResponse{Items: res}, nil
+	out.Items = res
+	return nil
 }
 
-func (s *server) CompileGeoIPToSrs(ctx context.Context, in *gen.CompileGeoIPToSrsRequest) (*gen.EmptyResp, error) {
+func (s *server) CompileGeoIPToSrs(in *gen.CompileGeoIPToSrsRequest, out *gen.EmptyResp) error {
 	category := strings.TrimSuffix(*in.Item, "_IP")
 	err := boxmain.CompileRuleSet(*in.Path+string(os.PathSeparator)+"geoip.db", category, boxmain.IpRuleSet, "./rule_sets/"+*in.Item+".srs")
 	if err != nil {
-		return nil, err
+		return err
 	}
 
-	return &gen.EmptyResp{}, nil
+	return nil
 }
 
-func (s *server) CompileGeoSiteToSrs(ctx context.Context, in *gen.CompileGeoSiteToSrsRequest) (*gen.EmptyResp, error) {
+func (s *server) CompileGeoSiteToSrs(in *gen.CompileGeoSiteToSrsRequest, out *gen.EmptyResp) error {
 	category := strings.TrimSuffix(*in.Item, "_SITE")
 	err := boxmain.CompileRuleSet(*in.Path+string(os.PathSeparator)+"geosite.db", category, boxmain.SiteRuleSet, "./rule_sets/"+*in.Item+".srs")
 	if err != nil {
-		return nil, err
+		return err
 	}
 
-	return &gen.EmptyResp{}, nil
+	return nil
 }
 
-func (s *server) IsPrivileged(ctx context.Context, _ *gen.EmptyReq) (*gen.IsPrivilegedResponse, error) {
+func (s *server) IsPrivileged(in *gen.EmptyReq, out *gen.IsPrivilegedResponse) error {
 	if runtime.GOOS == "windows" {
-		return &gen.IsPrivilegedResponse{
-			HasPrivilege: To(false),
-		}, nil
+		out.HasPrivilege = To(false)
+		return nil
 	}
 
-	return &gen.IsPrivilegedResponse{HasPrivilege: To(os.Geteuid() == 0)}, nil
+	out.HasPrivilege = To(os.Geteuid() == 0)
+	return nil
 }
 
-func (s *server) SpeedTest(ctx context.Context, in *gen.SpeedTestRequest) (*gen.SpeedTestResponse, error) {
+func (s *server) SpeedTest(in *gen.SpeedTestRequest, out *gen.SpeedTestResponse) error {
 	if !*in.TestDownload && !*in.TestUpload && !*in.SimpleDownload {
-		return nil, errors.New("cannot run empty test")
+		return errors.New("cannot run empty test")
 	}
 	var testInstance *boxbox.Box
 	var cancel context.CancelFunc
@@ -375,16 +368,17 @@ func (s *server) SpeedTest(ctx context.Context, in *gen.SpeedTestRequest) (*gen.
 	var err error
 	if *in.TestCurrent {
 		if boxInstance == nil {
-			return &gen.SpeedTestResponse{Results: []*gen.SpeedTestResult{{
+			out.Results = []*gen.SpeedTestResult{{
 				OutboundTag: To("proxy"),
 				Error:       To("Instance is not running"),
-			}}}, nil
+			}}
+			return nil
 		}
 		testInstance = boxInstance
 	} else {
 		testInstance, cancel, err = boxmain.Create([]byte(*in.Config))
 		if err != nil {
-			return nil, err
+			return err
 		}
 		defer cancel()
 		defer testInstance.Close()
@@ -415,17 +409,17 @@ func (s *server) SpeedTest(ctx context.Context, in *gen.SpeedTestRequest) (*gen.
 		})
 	}
 
-	return &gen.SpeedTestResponse{Results: res}, nil
+	out.Results = res
+	return nil
 }
 
-func (s *server) QuerySpeedTest(context.Context, *gen.EmptyReq) (*gen.QuerySpeedTestResponse, error) {
+func (s *server) QuerySpeedTest(in *gen.EmptyReq, out *gen.QuerySpeedTestResponse) error {
 	res, isRunning := SpTQuerier.Result()
 	errStr := ""
 	if res.Error != nil {
 		errStr = res.Error.Error()
 	}
-	return &gen.QuerySpeedTestResponse{
-		Result: &gen.SpeedTestResult{
+	out.Result = &gen.SpeedTestResult{
 			DlSpeed:       To(res.DlSpeed),
 			UlSpeed:       To(res.UlSpeed),
 			Latency:       To(res.Latency),
@@ -434,7 +428,7 @@ func (s *server) QuerySpeedTest(context.Context, *gen.EmptyReq) (*gen.QuerySpeed
 			ServerName:    To(res.ServerName),
 			ServerCountry: To(res.ServerCountry),
 			Cancelled:     To(res.Cancelled),
-		},
-		IsRunning: To(isRunning),
-	}, nil
+		}
+	out.IsRunning = To(isRunning)
+	return nil
 }

core/server/server_darwin.go

@@ -0,0 +1,9 @@
+package main
+
+import (
+	"Core/gen"
+)
+
+func (s *server) SetSystemDNS(in *gen.SetSystemDNSRequest, out *gen.EmptyResp) error {
+	return nil
+}

core/server/server_linux.go

@@ -0,0 +1,9 @@
+package main
+
+import (
+	"Core/gen"
+)
+
+func (s *server) SetSystemDNS(in *gen.SetSystemDNSRequest, out *gen.EmptyResp) error {
+	return nil
+}

core/server/server_windows.go

@@ -3,14 +3,13 @@ package main
 import (
 	"Core/gen"
 	"Core/internal/boxdns"
-	"context"
 )
 
-func (s *server) SetSystemDNS(ctx context.Context, in *gen.SetSystemDNSRequest) (*gen.EmptyResp, error) {
+func (s *server) SetSystemDNS(in *gen.SetSystemDNSRequest, out *gen.EmptyResp) error {
 	err := boxdns.DnsManagerInstance.SetSystemDNS(nil, *in.Clear)
 	if err != nil {
-		return nil, err
+		return err
 	}
 
-	return &gen.EmptyResp{}, nil
+	return nil
 }

include/api/RPC.h

@@ -4,17 +4,14 @@
 #include "libcore.pb.h"
 #endif
 #include <QString>
-
-namespace QtGrpc {
-    class Http2GrpcChannelPrivate;
-}
+#include "3rdparty/protorpc/rpc_client.h"
 
 namespace API {
     enum GeoRuleSetType {ip, site};
 
     class Client {
     public:
-        explicit Client(std::function<void(const QString &)> onError, const QString &target);
+        explicit Client(std::function<void(const QString &)> onError, const QString &host, int port);
 
         // QString returns is error string
 
@@ -47,8 +44,7 @@ namespace API {
         libcore::QuerySpeedTestResponse QueryCurrentSpeedTests(bool *rpcOK);
 
     private:
-        std::function<std::unique_ptr<QtGrpc::Http2GrpcChannelPrivate>()> make_grpc_channel;
-        std::unique_ptr<QtGrpc::Http2GrpcChannelPrivate> default_grpc_channel;
+        std::function<std::unique_ptr<protorpc::Client>()> make_rpc_client;
         std::function<void(const QString &)> onError;
     };
 

script/build_go.sh

@@ -39,7 +39,7 @@ popd
 #### Go: core ####
 pushd core/server
 pushd gen
-protoc -I . --go_out=. --go_opt paths=source_relative --go-grpc_out=. --go-grpc_opt paths=source_relative libcore.proto
+protoc -I . --go_out=. --protorpc_out=. libcore.proto
 popd
 VERSION_SINGBOX=$(go list -m -f '{{.Version}}' github.com/sagernet/sing-box)
 $GOCMD build -v -o $DEST -trimpath -ldflags "-w -s -X 'github.com/sagernet/sing-box/constant.Version=${VERSION_SINGBOX}'" -tags "with_clash_api,with_gvisor,with_quic,with_wireguard,with_utls,with_ech,with_dhcp"

src/api/RPC.cpp

@@ -0,0 +1,295 @@
+#include "include/api/RPC.h"
+
+#include "include/global/Configs.hpp"
+
+namespace API {
+
+    Client::Client(std::function<void(const QString &)> onError, const QString &host, int port) {
+        this->make_rpc_client = [=]() { return std::make_unique<protorpc::Client>(host.toStdString().c_str(), port); };
+        this->onError = std::move(onError);
+    }
+
+#define NOT_OK      \
+    *rpcOK = false; \
+    onError(QString("LibcoreService error: %1\n").arg(QString::fromStdString(err.String())));
+
+    QString Client::Start(bool *rpcOK, const libcore::LoadConfigReq &request) {
+        libcore::ErrorResp reply;
+        std::string resp, req = spb::pb::serialize<std::string>(request);
+        auto err = make_rpc_client()->CallMethod("LibcoreService.Start", &req, &resp);
+
+        if(err.IsNil()) {
+            reply = spb::pb::deserialize< libcore::ErrorResp >(resp);
+            *rpcOK = true;
+            return QString::fromStdString(reply.error.value());
+        } else {
+            NOT_OK
+            return "";
+        }
+    }
+
+    QString Client::Stop(bool *rpcOK) {
+        libcore::EmptyReq request;
+        libcore::ErrorResp reply;
+        std::string resp, req = spb::pb::serialize<std::string>(request);
+        auto err = make_rpc_client()->CallMethod("LibcoreService.Stop", &req, &resp);
+
+        if(err.IsNil()) {
+            reply = spb::pb::deserialize< libcore::ErrorResp >( resp );
+            *rpcOK = true;
+            return QString::fromStdString(reply.error.value());
+        } else {
+            NOT_OK
+            return "";
+        }
+    }
+
+    libcore::QueryStatsResp Client::QueryStats() {
+        libcore::EmptyReq request;
+        libcore::QueryStatsResp reply;
+        std::string resp, req = spb::pb::serialize<std::string>(request);
+        auto err = make_rpc_client()->CallMethod("LibcoreService.QueryStats", &req, &resp);
+
+        if(err.IsNil()) {
+            reply = spb::pb::deserialize< libcore::QueryStatsResp >( resp );
+            return reply;
+        } else {
+            return {};
+        }
+    }
+
+    libcore::TestResp Client::Test(bool *rpcOK, const libcore::TestReq &request) {
+        libcore::TestResp reply;
+        std::string resp, req = spb::pb::serialize<std::string>(request);
+        auto err = make_rpc_client()->CallMethod("LibcoreService.Test", &req, &resp);
+
+        if(err.IsNil()) {
+            reply = spb::pb::deserialize< libcore::TestResp >( resp );
+            *rpcOK = true;
+            return reply;
+        } else {
+            NOT_OK
+            return reply;
+        }
+    }
+
+    void Client::StopTests(bool *rpcOK) {
+        const libcore::EmptyReq request;
+        std::string resp, req = spb::pb::serialize<std::string>(request);
+        auto err = make_rpc_client()->CallMethod("LibcoreService.StopTest", &req, &resp);
+
+        if(err.IsNil()) {
+            *rpcOK = true;
+        } else {
+            NOT_OK
+        }
+    }
+
+    libcore::QueryURLTestResponse Client::QueryURLTest(bool *rpcOK)
+    {
+        libcore::EmptyReq request;
+        libcore::QueryURLTestResponse reply;
+        std::string resp, req = spb::pb::serialize<std::string>(request);
+        auto err = make_rpc_client()->CallMethod("LibcoreService.QueryURLTest", &req, &resp);
+
+        if(err.IsNil()) {
+            reply = spb::pb::deserialize< libcore::QueryURLTestResponse >( resp );
+            *rpcOK = true;
+            return reply;
+        } else {
+            NOT_OK
+            return reply;
+        }
+    }
+
+    QStringList Client::GetGeoList(bool *rpcOK, GeoRuleSetType mode, const QString& basePath) {
+        switch (mode) {
+            case GeoRuleSetType::ip: {
+                libcore::GeoListRequest request;
+                libcore::GetGeoIPListResponse reply;
+                request.path = basePath.toStdString();
+                std::string resp, req = spb::pb::serialize<std::string>(request);
+                auto err = make_rpc_client()->CallMethod("LibcoreService.GetGeoIPList", &req, &resp);
+
+                if(err.IsNil()) {
+                    QStringList res;
+                    reply = spb::pb::deserialize< libcore::GetGeoIPListResponse >( resp );
+                    for (const auto & i : reply.items) {
+                        res.append(QString::fromStdString(i));
+                    }
+                    *rpcOK = true;
+                    return res;
+                } else {
+                    NOT_OK
+                    return {};
+                }
+            }
+            case GeoRuleSetType::site: {
+                libcore::GeoListRequest request;
+                libcore::GetGeoSiteListResponse reply;
+                request.path = basePath.toStdString();
+                std::string resp, req = spb::pb::serialize<std::string>(request);
+                auto err = make_rpc_client()->CallMethod("LibcoreService.GetGeoSiteList", &req, &resp);
+
+                if(err.IsNil()) {
+                    QStringList res;
+                    reply = spb::pb::deserialize< libcore::GetGeoSiteListResponse >( resp );
+                    for (const auto & i : reply.items) {
+                        res.append(QString::fromStdString(i));
+                    }
+                    *rpcOK = true;
+                    return res;
+                } else {
+                    NOT_OK
+                    return {};
+                }
+            }
+        }
+        return {};
+    }
+
+    QString Client::CompileGeoSet(bool *rpcOK, GeoRuleSetType mode, std::string category, const QString& basePath) {
+        switch (mode) {
+            case ip: {
+                libcore::CompileGeoIPToSrsRequest request;
+                libcore::EmptyResp reply;
+                request.item = category;
+                request.path = basePath.toStdString();
+                std::string resp, req = spb::pb::serialize<std::string>(request);
+
+                auto err = make_rpc_client()->CallMethod("LibcoreService.CompileGeoIPToSrs", &req, &resp);
+                if(err.IsNil()) {
+                    *rpcOK = true;
+                    return "";
+                } else {
+                    NOT_OK
+                    return QString::fromStdString(err.String());
+                }
+            }
+            case site: {
+                libcore::CompileGeoSiteToSrsRequest request;
+                libcore::EmptyResp reply;
+                request.item = category;
+                request.path = basePath.toStdString();
+                std::string resp, req = spb::pb::serialize<std::string>(request);
+
+                auto err = make_rpc_client()->CallMethod("LibcoreService.CompileGeoSiteToSrs", &req, &resp);
+                if(err.IsNil()) {
+                    *rpcOK = true;
+                    return "";
+                } else {
+                    NOT_OK
+                    return QString::fromStdString(err.String());
+                }
+            }
+        }
+        return "";
+    }
+
+    QString Client::SetSystemDNS(bool *rpcOK, const bool clear) const {
+        libcore::SetSystemDNSRequest request;
+        request.clear = clear;
+        std::string resp, req = spb::pb::serialize<std::string>(request);
+
+        auto err = make_rpc_client()->CallMethod("LibcoreService.SetSystemDNS", &req, &resp);
+        if(err.IsNil()) {
+            *rpcOK = true;
+            return "";
+        } else {
+            NOT_OK
+            return QString::fromStdString(err.String());
+        }
+    }
+
+    libcore::ListConnectionsResp Client::ListConnections(bool* rpcOK) const
+    {
+        libcore::EmptyReq request;
+        libcore::ListConnectionsResp reply;
+        std::string resp, req = spb::pb::serialize<std::string>(request);
+        auto err = make_rpc_client()->CallMethod("LibcoreService.ListConnections", &req, &resp);
+        if(err.IsNil()) {
+            reply = spb::pb::deserialize< libcore::ListConnectionsResp >( resp );
+            *rpcOK = true;
+            return reply;
+        } else {
+            NOT_OK
+            MW_show_log(QString("Failed to list connections: ") + QString::fromStdString(err.String()));
+            return {};
+        }
+    }
+
+    QString Client::CheckConfig(bool* rpcOK, const QString& config) const
+    {
+        libcore::LoadConfigReq request;
+        libcore::ErrorResp reply;
+        request.core_config = config.toStdString();
+        std::string resp, req = spb::pb::serialize<std::string>(request);
+        auto err = make_rpc_client()->CallMethod("LibcoreService.CheckConfig", &req, &resp);
+
+        if(err.IsNil())
+        {
+            reply = spb::pb::deserialize< libcore::ErrorResp >( resp );
+            *rpcOK = true;
+            return QString::fromStdString(reply.error.value());
+        } else
+        {
+            NOT_OK
+            return QString::fromStdString(err.String());
+        }
+
+    }
+
+    bool Client::IsPrivileged(bool* rpcOK) const
+    {
+        libcore::EmptyReq request;
+        libcore::IsPrivilegedResponse reply;
+        std::string resp, req = spb::pb::serialize<std::string>(request);
+        auto err = make_rpc_client()->CallMethod("LibcoreService.IsPrivileged", &req, &resp);
+
+        if(err.IsNil())
+        {
+            reply = spb::pb::deserialize< libcore::IsPrivilegedResponse >( resp );
+            *rpcOK = true;
+            return reply.has_privilege.value();
+        } else
+        {
+            NOT_OK
+            return false;
+        }
+    }
+
+    libcore::SpeedTestResponse Client::SpeedTest(bool *rpcOK, const libcore::SpeedTestRequest &request)
+    {
+        libcore::SpeedTestResponse reply;
+        std::string resp, req = spb::pb::serialize<std::string>(request);
+        auto err = make_rpc_client()->CallMethod("LibcoreService.SpeedTest", &req, &resp);
+
+        if(err.IsNil()) {
+            reply = spb::pb::deserialize< libcore::SpeedTestResponse >( resp );
+            *rpcOK = true;
+            return reply;
+        } else {
+            NOT_OK
+            return reply;
+        }
+    }
+
+    libcore::QuerySpeedTestResponse Client::QueryCurrentSpeedTests(bool *rpcOK)
+    {
+        const libcore::EmptyReq request;
+        libcore::QuerySpeedTestResponse reply;
+        std::string resp, req = spb::pb::serialize<std::string>(request);
+        auto err = make_rpc_client()->CallMethod("LibcoreService.QuerySpeedTest", &req, &resp);
+
+        if(err.IsNil()) {
+            reply = spb::pb::deserialize< libcore::QuerySpeedTestResponse >( resp );
+            *rpcOK = true;
+            return reply;
+        } else {
+            NOT_OK
+            return reply;
+        }
+    }
+
+
+} // namespace API

src/api/gRPC.cpp

@@ -1,474 +0,0 @@
-#include "include/api/gRPC.h"
-
-#include <utility>
-
-#include "include/global/Configs.hpp"
-
-#include <QCoreApplication>
-#include <QNetworkReply>
-#include <QTimer>
-#include <QtEndian>
-#include <QThread>
-#include <QMutex>
-#include <QAbstractNetworkCache>
-
-namespace QtGrpc {
-    const char *GrpcAcceptEncodingHeader = "grpc-accept-encoding";
-    const char *AcceptEncodingHeader = "accept-encoding";
-    const char *TEHeader = "te";
-    const char *GrpcStatusHeader = "grpc-status";
-    const char *GrpcStatusMessage = "grpc-message";
-    const int GrpcMessageSizeHeaderSize = 5;
-
-    class NoCache : public QAbstractNetworkCache {
-    public:
-        QNetworkCacheMetaData metaData(const QUrl &url) override {
-            return {};
-        }
-        void updateMetaData(const QNetworkCacheMetaData &metaData) override {
-        }
-        QIODevice *data(const QUrl &url) override {
-            return nullptr;
-        }
-        bool remove(const QUrl &url) override {
-            return false;
-        }
-        [[nodiscard]] qint64 cacheSize() const override {
-            return 0;
-        }
-        QIODevice *prepare(const QNetworkCacheMetaData &metaData) override {
-            return nullptr;
-        }
-        void insert(QIODevice *device) override {
-        }
-        void clear() override {
-        }
-    };
-
-    class Http2GrpcChannelPrivate {
-    private:
-        QThread *thread;
-        QNetworkAccessManager *nm;
-
-        QString url_base;
-        QString serviceName;
-
-        // async
-        QNetworkReply *post(const QString &method, const QString &service, const QByteArray &args) {
-            QUrl callUrl = url_base + "/" + service + "/" + method;
-
-            QNetworkRequest request(callUrl);
-            request.setAttribute(QNetworkRequest::Http2DirectAttribute, true);
-            request.setHeader(QNetworkRequest::ContentTypeHeader, QLatin1String{"application/grpc"});
-            request.setRawHeader("Cache-Control", "no-store");
-            request.setRawHeader(GrpcAcceptEncodingHeader, QByteArray{"identity,deflate,gzip"});
-            request.setRawHeader(AcceptEncodingHeader, QByteArray{"identity,gzip"});
-            request.setRawHeader(TEHeader, QByteArray{"trailers"});
-
-            QByteArray msg(GrpcMessageSizeHeaderSize, '\0');
-            *reinterpret_cast<int *>(msg.data() + 1) = qToBigEndian((int) args.size());
-            msg += args;
-
-            QNetworkReply *networkReply = nm->post(request, msg);
-            return networkReply;
-        }
-
-        static QByteArray processReply(QNetworkReply *networkReply, QNetworkReply::NetworkError &statusCode) {
-            // Check if no network error occured
-            if (networkReply->error() != QNetworkReply::NoError) {
-                statusCode = networkReply->error();
-                return {};
-            }
-
-            // Check if server answer with error
-            auto errCode = networkReply->rawHeader(GrpcStatusHeader).toInt();
-            if (errCode != 0) {
-                QStringList errstr;
-                errstr << "grpc-status error code:" << Int2String(errCode) << ", error msg:"
-                       << QLatin1String(networkReply->rawHeader(GrpcStatusMessage));
-                MW_show_log(errstr.join(" "));
-                statusCode = QNetworkReply::NetworkError::ProtocolUnknownError;
-                return {};
-            }
-            statusCode = QNetworkReply::NetworkError::NoError;
-            return networkReply->readAll().mid(GrpcMessageSizeHeaderSize);
-        }
-
-        QNetworkReply::NetworkError call(const QString &method, const QString &service, const QByteArray &args, QByteArray &qByteArray, int timeout_ms) {
-            QNetworkReply *networkReply = post(method, service, args);
-
-            QTimer *abortTimer = nullptr;
-            if (timeout_ms > 0) {
-                abortTimer = new QTimer;
-                abortTimer->setSingleShot(true);
-                abortTimer->setInterval(timeout_ms);
-                QObject::connect(abortTimer, &QTimer::timeout, networkReply, &QNetworkReply::abort);
-                abortTimer->start();
-            }
-
-            {
-                QEventLoop loop;
-                QObject::connect(networkReply, &QNetworkReply::finished, &loop, &QEventLoop::quit);
-                loop.exec();
-            }
-
-            if (abortTimer != nullptr) {
-                abortTimer->stop();
-                abortTimer->deleteLater();
-            }
-
-            auto grpcStatus = QNetworkReply::NetworkError::ProtocolUnknownError;
-            qByteArray = processReply(networkReply, grpcStatus);
-
-            networkReply->deleteLater();
-            return grpcStatus;
-        }
-
-    public:
-        Http2GrpcChannelPrivate(const QString &url_, const QString &serviceName_) {
-            url_base = "http://" + url_;
-            serviceName = serviceName_;
-            //
-            thread = new QThread;
-            nm = new QNetworkAccessManager();
-            nm->setCache(new NoCache);
-            nm->moveToThread(thread);
-            thread->start();
-        }
-
-        ~Http2GrpcChannelPrivate() {
-            nm->deleteLater();
-            thread->quit();
-            thread->wait();
-            thread->deleteLater();
-        }
-
-        QNetworkReply::NetworkError Call(const QString &methodName,
-                                         const std::string req, std::vector<uint8_t> &rsp,
-                                         int timeout_ms = 0) {
-            if (!Configs::dataStore->core_running) return QNetworkReply::NetworkError(-1919);
-
-            auto requestArray = QByteArray::fromStdString(req);
-
-            QByteArray responseArray;
-            QNetworkReply::NetworkError err;
-            QMutex lock;
-            lock.lock();
-
-            runOnThread(
-                [&] {
-                    err = call(methodName, serviceName, requestArray, responseArray, timeout_ms);
-                    lock.unlock();
-                },
-                nm);
-
-            lock.lock();
-            lock.unlock();
-            // qDebug() << "rsp err" << err;
-            // qDebug() << "rsp array" << responseArray;
-
-            if (err != QNetworkReply::NetworkError::NoError) {
-                return err;
-            }
-            rsp.assign(responseArray.begin(), responseArray.end());
-            return QNetworkReply::NetworkError::NoError;
-        }
-    };
-} // namespace QtGrpc
-
-namespace API {
-
-    Client::Client(std::function<void(const QString &)> onError, const QString &target) {
-        this->make_grpc_channel = [=]() { return std::make_unique<QtGrpc::Http2GrpcChannelPrivate>(target, "libcore.LibcoreService"); };
-        this->default_grpc_channel = make_grpc_channel();
-        this->onError = std::move(onError);
-    }
-
-#define NOT_OK      \
-    *rpcOK = false; \
-    onError(QString("QNetworkReply::NetworkError code: %1\n").arg(status));
-
-    QString Client::Start(bool *rpcOK, const libcore::LoadConfigReq &request) {
-        libcore::ErrorResp reply;
-        std::vector<uint8_t> rsp;
-        auto status = default_grpc_channel->Call("Start", spb::pb::serialize< std::string >( request ), rsp);
-
-        if (status == QNetworkReply::NoError) {
-            reply = spb::pb::deserialize< libcore::ErrorResp >( rsp );
-            *rpcOK = true;
-            return {reply.error.value().c_str()};
-        } else {
-            NOT_OK
-            return reply.error.value().c_str();
-        }
-    }
-
-    QString Client::Stop(bool *rpcOK) {
-        libcore::EmptyReq request;
-        libcore::ErrorResp reply;
-        std::vector<uint8_t> rsp;
-        auto status = default_grpc_channel->Call("Stop", spb::pb::serialize< std::string >( request ), rsp);
-
-        if (status == QNetworkReply::NoError) {
-            reply = spb::pb::deserialize< libcore::ErrorResp >( rsp );
-            *rpcOK = true;
-            return {reply.error.value().c_str()};
-        } else {
-            NOT_OK
-            return "";
-        }
-    }
-
-    libcore::QueryStatsResp Client::QueryStats() {
-        libcore::EmptyReq request;
-        libcore::QueryStatsResp reply;
-        std::vector<uint8_t> rsp;
-        auto status = default_grpc_channel->Call("QueryStats", spb::pb::serialize< std::string >( request ), rsp, 500);
-
-        if (status == QNetworkReply::NoError) {
-            reply = spb::pb::deserialize< libcore::QueryStatsResp >( rsp );
-            return reply;
-        } else {
-            return {};
-        }
-    }
-
-    libcore::TestResp Client::Test(bool *rpcOK, const libcore::TestReq &request) {
-        libcore::TestResp reply;
-        std::vector<uint8_t> rsp;
-        auto status = make_grpc_channel()->Call("Test", spb::pb::serialize< std::string >( request ), rsp);
-
-        if (status == QNetworkReply::NoError) {
-            reply = spb::pb::deserialize< libcore::TestResp >( rsp );
-            *rpcOK = true;
-            return reply;
-        } else {
-            NOT_OK
-            return reply;
-        }
-    }
-
-    void Client::StopTests(bool *rpcOK) {
-        const libcore::EmptyReq req;
-        libcore::EmptyResp resp;
-        std::vector<uint8_t> rsp;
-        auto status = make_grpc_channel()->Call("StopTest", spb::pb::serialize< std::string >( req ), rsp);
-
-        if (status == QNetworkReply::NoError) {
-            *rpcOK = true;
-        } else {
-            NOT_OK
-        }
-    }
-
-    libcore::QueryURLTestResponse Client::QueryURLTest(bool *rpcOK)
-    {
-        libcore::EmptyReq request;
-        libcore::QueryURLTestResponse resp;
-        std::vector<uint8_t> rsp;
-        auto status = make_grpc_channel()->Call("QueryURLTest", spb::pb::serialize< std::string >( request ), rsp);
-
-        if (status == QNetworkReply::NoError) {
-            resp = spb::pb::deserialize< libcore::QueryURLTestResponse >( rsp );
-            *rpcOK = true;
-            return resp;
-        } else {
-            NOT_OK
-            return resp;
-        }
-    }
-
-    QStringList Client::GetGeoList(bool *rpcOK, GeoRuleSetType mode, const QString& basePath) {
-        switch (mode) {
-            case GeoRuleSetType::ip: {
-                libcore::GeoListRequest req;
-                libcore::GetGeoIPListResponse resp;
-                std::vector<uint8_t> rsp;
-                req.path = basePath.toStdString();
-
-                auto status = default_grpc_channel->Call("GetGeoIPList", spb::pb::serialize< std::string >( req ), rsp);
-
-                if (status == QNetworkReply::NoError) {
-                    QStringList res;
-                    resp = spb::pb::deserialize< libcore::GetGeoIPListResponse >( rsp );
-                    for (const auto & i : resp.items) {
-                        res.append(QString::fromStdString(i));
-                    }
-                    *rpcOK = true;
-                    return res;
-                } else {
-                    NOT_OK
-                    return {};
-                }
-            }
-            case GeoRuleSetType::site: {
-                libcore::GeoListRequest req;
-                libcore::GetGeoSiteListResponse resp;
-                std::vector<uint8_t> rsp;
-                req.path = basePath.toStdString();
-
-                auto status = default_grpc_channel->Call("GetGeoSiteList", spb::pb::serialize< std::string >( req ), rsp);
-
-                if (status == QNetworkReply::NoError) {
-                    QStringList res;
-                    resp = spb::pb::deserialize< libcore::GetGeoSiteListResponse >( rsp );
-                    for (const auto & i : resp.items) {
-                        res.append(QString::fromStdString(i));
-                    }
-                    *rpcOK = true;
-                    return res;
-                } else {
-                    NOT_OK
-                    return {};
-                }
-            }
-        }
-        return {};
-    }
-
-    QString Client::CompileGeoSet(bool *rpcOK, GeoRuleSetType mode, std::string category, const QString& basePath) {
-        switch (mode) {
-            case ip: {
-                libcore::CompileGeoIPToSrsRequest req;
-                libcore::EmptyResp resp;
-                std::vector<uint8_t> rsp;
-                req.item = category;
-                req.path = basePath.toStdString();
-
-                auto status = default_grpc_channel->Call("CompileGeoIPToSrs", spb::pb::serialize< std::string >( req ), rsp);
-                if (status == QNetworkReply::NoError) {
-                    *rpcOK = true;
-                    return "";
-                } else {
-                    NOT_OK
-                    return qt_error_string(status);
-                }
-            }
-            case site: {
-                libcore::CompileGeoSiteToSrsRequest req;
-                libcore::EmptyResp resp;
-                std::vector<uint8_t> rsp;
-                req.item = category;
-                req.path = basePath.toStdString();
-
-                auto status = default_grpc_channel->Call("CompileGeoSiteToSrs", spb::pb::serialize< std::string >( req ), rsp);
-                if (status == QNetworkReply::NoError) {
-                    *rpcOK = true;
-                    return "";
-                } else {
-                    NOT_OK
-                    return qt_error_string(status);
-                }
-            }
-        }
-        return "";
-    }
-
-    QString Client::SetSystemDNS(bool *rpcOK, const bool clear) const {
-        libcore::SetSystemDNSRequest req;
-        libcore::EmptyResp resp;
-        std::vector<uint8_t> rsp;
-        req.clear = clear;
-
-        auto status = default_grpc_channel->Call("SetSystemDNS", spb::pb::serialize< std::string >( req ), rsp);
-        if (status == QNetworkReply::NoError) {
-            *rpcOK = true;
-            return "";
-        } else {
-            NOT_OK
-            return qt_error_string(status);
-        }
-    }
-
-    libcore::ListConnectionsResp Client::ListConnections(bool* rpcOK) const
-    {
-        libcore::EmptyReq req;
-        libcore::ListConnectionsResp resp;
-        std::vector<uint8_t> rsp;
-        auto status = default_grpc_channel->Call("ListConnections", spb::pb::serialize< std::string >( req ), rsp);
-        if (status == QNetworkReply::NoError) {
-            resp = spb::pb::deserialize< libcore::ListConnectionsResp >( rsp );
-            *rpcOK = true;
-            return resp;
-        } else {
-            NOT_OK
-            MW_show_log(QString("Failed to list connections: " + qt_error_string(status)));
-            return {};
-        }
-    }
-
-    QString Client::CheckConfig(bool* rpcOK, const QString& config) const
-    {
-        libcore::LoadConfigReq req;
-        libcore::ErrorResp resp;
-        std::vector<uint8_t> rsp;
-        req.core_config = config.toStdString();
-        auto status = default_grpc_channel->Call("CheckConfig", spb::pb::serialize< std::string >( req ), rsp);
-
-        if (status == QNetworkReply::NoError)
-        {
-            resp = spb::pb::deserialize< libcore::ErrorResp >( rsp );
-            *rpcOK = true;
-            return {resp.error.value().c_str()};
-        } else
-        {
-            NOT_OK
-            return qt_error_string(status);
-        }
-
-    }
-
-    bool Client::IsPrivileged(bool* rpcOK) const
-    {
-        auto req = libcore::EmptyReq();
-        auto resp = libcore::IsPrivilegedResponse();
-        std::vector<uint8_t> rsp;
-        auto status = default_grpc_channel->Call("IsPrivileged", spb::pb::serialize< std::string >( req ), rsp);
-
-        if (status == QNetworkReply::NoError)
-        {
-            resp = spb::pb::deserialize< libcore::IsPrivilegedResponse >( rsp );
-            *rpcOK = true;
-            return resp.has_privilege.value();
-        } else
-        {
-            NOT_OK
-            return false;
-        }
-    }
-
-    libcore::SpeedTestResponse Client::SpeedTest(bool *rpcOK, const libcore::SpeedTestRequest &request)
-    {
-        libcore::SpeedTestResponse reply;
-        std::vector<uint8_t> rsp;
-        auto status = make_grpc_channel()->Call("SpeedTest", spb::pb::serialize< std::string >( request ), rsp);
-
-        if (status == QNetworkReply::NoError) {
-            reply = spb::pb::deserialize< libcore::SpeedTestResponse >( rsp );
-            *rpcOK = true;
-            return reply;
-        } else {
-            NOT_OK
-            return reply;
-        }
-    }
-
-    libcore::QuerySpeedTestResponse Client::QueryCurrentSpeedTests(bool *rpcOK)
-    {
-        const libcore::EmptyReq req;
-        libcore::QuerySpeedTestResponse reply;
-        std::vector<uint8_t> rsp;
-        auto status = make_grpc_channel()->Call("QuerySpeedTest", spb::pb::serialize< std::string >( req ), rsp);
-
-        if (status == QNetworkReply::NoError) {
-            reply = spb::pb::deserialize< libcore::QuerySpeedTestResponse >( rsp );
-            *rpcOK = true;
-            return reply;
-        } else {
-            NOT_OK
-            return reply;
-        }
-    }
-
-
-} // namespace API

src/configs/ConfigBuilder.cpp

@@ -2,7 +2,7 @@
 #include "include/dataStore/Database.hpp"
 #include "include/configs/proxy/includes.h"
 #include "include/configs/proxy/Preset.hpp"
-#include "include/api/gRPC.h"
+#include "include/api/RPC.h"
 
 #include <QApplication>
 #include <QFile>

src/global/Configs.cpp

@@ -9,7 +9,7 @@
 #include <QJsonDocument>
 #include <QJsonObject>
 #include <QStandardPaths>
-#include <include/api/gRPC.h>
+#include <include/api/RPC.h>
 
 #ifdef Q_OS_WIN
 #include "include/sys/windows/guihelper.h"

src/stats/connectionLister/connectionLister.cpp

@@ -1,6 +1,6 @@
 #include <QThread>
 #include <libcore.pb.h>
-#include <include/api/gRPC.h>
+#include <include/api/RPC.h>
 #include "include/ui/mainwindow_interface.h"
 #include <include/stats/connections/connectionLister.hpp>
 

src/stats/traffic/TrafficLooper.cpp

@@ -1,6 +1,6 @@
 #include "include/stats/traffic/TrafficLooper.hpp"
 
-#include "include/api/gRPC.h"
+#include "include/api/RPC.h"
 #include "include/ui/mainwindow_interface.h"
 
 #include <QThread>

src/ui/mainwindow.cpp

@@ -53,7 +53,6 @@
 #include <random>
 #include <3rdparty/QHotkey/qhotkey.h>
 #include <3rdparty/qv2ray/v2/proxy/QvProxyConfigurator.hpp>
-#include <include/api/gRPC.h>
 #include <include/global/HTTPRequestHelper.hpp>
 
 #include "include/sys/macos/MacOS.h"

src/ui/mainwindow_grpc.cpp

@@ -3,7 +3,7 @@
 #include "include/dataStore/Database.hpp"
 #include "include/configs/ConfigBuilder.hpp"
 #include "include/stats/traffic/TrafficLooper.hpp"
-#include "include/api/gRPC.h"
+#include "include/api/RPC.h"
 #include "include/ui/utils//MessageBoxTimer.h"
 #include "3rdparty/qv2ray/v2/proxy/QvProxyConfigurator.hpp"
 
@@ -22,7 +22,7 @@ void MainWindow::setup_grpc() {
         [=](const QString &errStr) {
             MW_show_log("[Error] Core: " + errStr);
         },
-        "127.0.0.1:" + Int2String(Configs::dataStore->core_port));
+        "127.0.0.1", Configs::dataStore->core_port);
 
     // Looper
     runOnNewThread([=] { Stats::trafficLooper->Loop(); });
@@ -64,7 +64,7 @@ void MainWindow::runURLTest(const QString& config, bool useDefault, const QStrin
             {
                 int entid = -1;
                 if (!tag2entID.empty()) {
-                    entid = tag2entID.count(QString(res.outbound_tag.value().c_str())) == 0 ? -1 : tag2entID[QString(res.outbound_tag.value().c_str())];
+                    entid = tag2entID.count(QString::fromStdString(res.outbound_tag.value())) == 0 ? -1 : tag2entID[QString::fromStdString(res.outbound_tag.value())];
                 }
                 if (entid == -1) {
                     continue;
@@ -76,11 +76,11 @@ void MainWindow::runURLTest(const QString& config, bool useDefault, const QStrin
                 if (res.error.value().empty()) {
                 ent->latency = res.latency_ms.value();
                 } else {
-                    if (QString(res.error.value().c_str()).contains("test aborted") ||
-                        QString(res.error.value().c_str()).contains("context canceled")) ent->latency=0;
+                    if (QString::fromStdString(res.error.value()).contains("test aborted") ||
+                        QString::fromStdString(res.error.value()).contains("context canceled")) ent->latency=0;
                     else {
                         ent->latency = -1;
-                        MW_show_log(tr("[%1] test error: %2").arg(ent->bean->DisplayTypeAndName(), res.error.value().c_str()));
+                        MW_show_log(tr("[%1] test error: %2").arg(ent->bean->DisplayTypeAndName(), QString::fromStdString(res.error.value())));
                     }
                 }
                 ent->Save();
@@ -104,7 +104,7 @@ void MainWindow::runURLTest(const QString& config, bool useDefault, const QStrin
 
     for (const auto &res: result.results) {
         if (!tag2entID.empty()) {
-            entID = tag2entID.count(QString(res.outbound_tag.value().c_str())) == 0 ? -1 : tag2entID[QString(res.outbound_tag.value().c_str())];
+            entID = tag2entID.count(QString::fromStdString(res.outbound_tag.value())) == 0 ? -1 : tag2entID[QString::fromStdString(res.outbound_tag.value())];
         }
         if (entID == -1) {
             MW_show_log(tr("Something is very wrong, the subject ent cannot be found!"));
@@ -120,11 +120,11 @@ void MainWindow::runURLTest(const QString& config, bool useDefault, const QStrin
         if (res.error.value().empty()) {
             ent->latency = res.latency_ms.value();
         } else {
-            if (QString(res.error.value().c_str()).contains("test aborted") ||
-                QString(res.error.value().c_str()).contains("context canceled")) ent->latency=0;
+            if (QString::fromStdString(res.error.value()).contains("test aborted") ||
+                QString::fromStdString(res.error.value()).contains("context canceled")) ent->latency=0;
             else {
                 ent->latency = -1;
-                MW_show_log(tr("[%1] test error: %2").arg(ent->bean->DisplayTypeAndName(), res.error.value().c_str()));
+                MW_show_log(tr("[%1] test error: %2").arg(ent->bean->DisplayTypeAndName(), QString::fromStdString(res.error.value())));
             }
         }
         ent->Save();
@@ -212,7 +212,7 @@ void MainWindow::url_test_current() {
 
         runOnUiThread([=] {
             if (!result.results[0].error.value().empty()) {
-                MW_show_log(QString("UrlTest error: %1").arg(result.results[0].error.value().c_str()));
+                MW_show_log(QString("UrlTest error: %1").arg(QString::fromStdString(result.results[0].error.value())));
             }
             if (latency <= 0) {
                 ui->label_running->setText(tr("Test Result") + ": " + tr("Unavailable"));
@@ -304,7 +304,7 @@ void MainWindow::runSpeedTest(const QString& config, bool useDefault, bool testC
             {
                 continue;
             }
-            auto profile = testCurrent ? running : Configs::profileManager->GetProfile(tag2entID[res.result.value().outbound_tag.value().c_str()]);
+            auto profile = testCurrent ? running : Configs::profileManager->GetProfile(tag2entID[QString::fromStdString(res.result.value().outbound_tag.value())]);
             if (profile == nullptr)
             {
                 continue;
@@ -318,8 +318,8 @@ void MainWindow::runSpeedTest(const QString& config, bool useDefault, bool testC
 
                 if (res.result.value().error.value().empty() && !res.result.value().cancelled.value() && lastProxyListUpdate.msecsTo(QDateTime::currentDateTime()) >= 500)
                 {
-                    if (!res.result.value().dl_speed.value().empty()) profile->dl_speed = res.result.value().dl_speed.value().c_str();
-                    if (!res.result.value().ul_speed.value().empty()) profile->ul_speed = res.result.value().ul_speed.value().c_str();
+                    if (!res.result.value().dl_speed.value().empty()) profile->dl_speed = QString::fromStdString(res.result.value().dl_speed.value());
+                    if (!res.result.value().ul_speed.value().empty()) profile->ul_speed = QString::fromStdString(res.result.value().ul_speed.value());
                     if (profile->latency <= 0 && res.result.value().latency.value() > 0) profile->latency = res.result.value().latency.value();
                     refresh_proxy_list(profile->id);
                     lastProxyListUpdate = QDateTime::currentDateTime();
@@ -343,7 +343,7 @@ void MainWindow::runSpeedTest(const QString& config, bool useDefault, bool testC
     for (const auto &res: result.results) {
         if (testCurrent) entID = running ? running->id : -1;
         else {
-            entID = tag2entID.count(QString(res.outbound_tag.value().c_str())) == 0 ? -1 : tag2entID[QString(res.outbound_tag.value().c_str())];
+            entID = tag2entID.count(QString::fromStdString(res.outbound_tag.value())) == 0 ? -1 : tag2entID[QString::fromStdString(res.outbound_tag.value())];
         }
         if (entID == -1) {
             MW_show_log(tr("Something is very wrong, the subject ent cannot be found!"));
@@ -359,14 +359,14 @@ void MainWindow::runSpeedTest(const QString& config, bool useDefault, bool testC
         if (res.cancelled.value()) continue;
 
         if (res.error.value().empty()) {
-            ent->dl_speed = res.dl_speed.value().c_str();
-            ent->ul_speed = res.ul_speed.value().c_str();
+            ent->dl_speed = QString::fromStdString(res.dl_speed.value());
+            ent->ul_speed = QString::fromStdString(res.ul_speed.value());
             if (ent->latency <= 0 && res.latency.value() > 0) ent->latency = res.latency.value();
         } else {
             ent->dl_speed = "N/A";
             ent->ul_speed = "N/A";
             ent->latency = -1;
-            MW_show_log(tr("[%1] speed test error: %2").arg(ent->bean->DisplayTypeAndName(), res.error.value().c_str()));
+            MW_show_log(tr("[%1] speed test error: %2").arg(ent->bean->DisplayTypeAndName(), QString::fromStdString(res.error.value())));
         }
         ent->Save();
     }

src/ui/setting/RouteItem.cpp

@@ -1,7 +1,7 @@
 #include "include/ui/setting/RouteItem.h"
 #include "include/dataStore/RouteEntity.h"
 #include "include/dataStore/Database.hpp"
-#include "include/api/gRPC.h"
+#include "include/api/RPC.h"
 
 void adjustComboBoxWidth(const QComboBox *comboBox) {
     int maxWidth = 0;

src/ui/setting/dialog_manage_routes.cpp

@@ -13,7 +13,7 @@
 #include <QShortcut>
 #include <QTimer>
 #include <QToolTip>
-#include <include/api/gRPC.h>
+#include <include/api/RPC.h>
 
 void DialogManageRoutes::reloadProfileItems() {
     if (chainList.empty()) {