Henry
6597f8b9d1
Co-authored-by: nova28 <17953305+nova28@users.noreply.github.com> Co-authored-by: Carlos Florencio <carlosmflorencio@gmail.com>
47 lines
1.2 KiB
Go
47 lines
1.2 KiB
Go
//go:build darwin
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package probe
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import (
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"fmt"
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"time"
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"golang.org/x/sys/unix"
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)
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// darwinZombieStat is kinfo_proc.kp_proc.p_stat's SZOMB value (BSD
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// sys/proc.h) — the process finished exiting but has not yet been reaped by
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// its parent. Excluded per D5.
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const darwinZombieStat = 5
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type darwinProcessTableReader struct{}
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func platformProcessTableReader() processTableReader {
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return darwinProcessTableReader{}
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}
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func (darwinProcessTableReader) Resolution() time.Duration {
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// kinfo_proc.kp_proc.p_starttime is a struct timeval — already
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// microsecond-resolution wall-clock, the same clock domain as
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// time.Now(), so no boot-anchor translation is needed (unlike Linux).
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return time.Microsecond
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}
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func (darwinProcessTableReader) ReadProcessTable() ([]processInfo, error) {
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procs, err := unix.SysctlKinfoProcSlice("kern.proc.all")
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if err != nil {
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return nil, fmt.Errorf("probe: sysctl kern.proc.all: %w", err)
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}
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table := make([]processInfo, 0, len(procs))
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for _, p := range procs {
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table = append(table, processInfo{
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PID: int(p.Proc.P_pid),
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PPID: int(p.Eproc.Ppid),
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StartTime: time.Unix(p.Proc.P_starttime.Sec, int64(p.Proc.P_starttime.Usec)*1000),
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Zombie: p.Proc.P_stat == darwinZombieStat,
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})
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}
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return table, nil
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}
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