1 // Copyright 2009 The Go Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style
3 // license that can be found in the LICENSE file.
5 // +build darwin freebsd linux netbsd openbsd
16 func (p *Process) wait() (ps *ProcessState, err error) {
18 return nil, syscall.EINVAL
20 var status syscall.WaitStatus
21 var rusage syscall.Rusage
22 pid1, e := syscall.Wait4(p.Pid, &status, 0, &rusage)
24 return nil, NewSyscallError("wait", e)
37 func (p *Process) signal(sig Signal) error {
39 return errors.New("os: process already finished")
41 s, ok := sig.(syscall.Signal)
43 return errors.New("os: unsupported signal type")
45 if e := syscall.Kill(p.Pid, s); e != nil {
51 func (p *Process) release() error {
54 // no need for a finalizer anymore
55 runtime.SetFinalizer(p, nil)
59 func findProcess(pid int) (p *Process, err error) {
61 return newProcess(pid, 0), nil
64 func (p *ProcessState) userTime() time.Duration {
65 return time.Duration(p.rusage.Utime.Nano()) * time.Nanosecond
68 func (p *ProcessState) systemTime() time.Duration {
69 return time.Duration(p.rusage.Stime.Nano()) * time.Nanosecond