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57 lines
1.3 KiB
Go
57 lines
1.3 KiB
Go
package memory
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import (
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"unsafe"
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"github.com/ebitengine/purego"
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)
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const PROC_PIDTASKINFO = 4
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type ProcTaskInfo struct {
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Virtual_size uint64
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Resident_size uint64
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Total_user uint64
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Total_system uint64
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Threads_user uint64
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Threads_system uint64
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Policy int32
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Faults int32
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Pageins int32
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Cow_faults int32
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Messages_sent int32
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Messages_received int32
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Syscalls_mach int32
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Syscalls_unix int32
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Csw int32
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Threadnum int32
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Numrunning int32
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Priority int32
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}
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const System = "/usr/lib/libSystem.B.dylib"
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type ProcPidInfoFunc func(pid, flavor int32, arg uint64, buffer uintptr, bufferSize int32) int32
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const ProcPidInfoSym = "proc_pidinfo"
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func GetMemoryInfo(pid int32) (*MemoryInfoStat, error) {
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lib, err := purego.Dlopen(System, purego.RTLD_LAZY|purego.RTLD_GLOBAL)
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if err != nil {
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return nil, err
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}
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defer purego.Dlclose(lib)
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var procPidInfo ProcPidInfoFunc
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purego.RegisterLibFunc(&procPidInfo, lib, ProcPidInfoSym)
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var ti ProcTaskInfo
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procPidInfo(pid, PROC_PIDTASKINFO, 0, uintptr(unsafe.Pointer(&ti)), int32(unsafe.Sizeof(ti)))
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ret := &MemoryInfoStat{
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RSS: uint64(ti.Resident_size),
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VMS: uint64(ti.Virtual_size),
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}
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return ret, nil
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}
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