// Wait waits for the Process to exit or stop, and then returns a
// ProcessState describing its status and an error, if any.
func (p *Process) Wait() (ps *ProcessState, err error) {
var waitmsg syscall.Waitmsg
if p.Pid == -1 {
return nil, ErrInvalid
}
for true {
err = syscall.Await(&waitmsg)
if err != nil {
return nil, NewSyscallError("wait", err)
}
if waitmsg.Pid == p.Pid {
p.done = true
break
}
}
ps = &ProcessState{
pid: waitmsg.Pid,
status: &waitmsg,
}
return ps, nil
}
// Wait waits for the Process to exit or stop, and then returns a
// Waitmsg describing its status and an Error, if any. The options
// (WNOHANG etc.) affect the behavior of the Wait call.
func (p *Process) Wait(options int) (w *Waitmsg, err Error) {
var waitmsg syscall.Waitmsg
if p.Pid == -1 {
return nil, EINVAL
}
for true {
err = syscall.Await(&waitmsg)
if iserror(err) {
return nil, NewSyscallError("wait", err)
}
if waitmsg.Pid == p.Pid {
break
}
}
return &Waitmsg{waitmsg}, nil
}