// Wait calls Wait on the underlying exec.Cmd's Process and, if the
// operating system supports it, returns the exit status.
//
// If an error occurs when waiting for the underlying process, the exit
// status will be -2, and the error will be returned. If the operating
// system does not support determining the exit status, but the program
// exited successfully, the exit status will be 0. If the operating
// system does not support determining the exit status and the program
// exited unsuccessfully, the exit status will be -1.
func (p *Proc) Wait() (exitStatus int, err error) {
var ps *os.ProcessState
ps, err = p.Cmd.Process.Wait()
if err != nil {
return -2, err
}
ws, ok := ps.Sys().(syscall.WaitStatus)
if ok {
return ws.ExitStatus(), nil
}
if ps.Success() {
return 0, nil
}
return -1, nil
}
func getExitCode(state *os.ProcessState) int {
return state.Sys().(syscall.WaitStatus).ExitStatus()
}
func exitStatus(p *os.ProcessState) int {
ws := p.Sys().(syscall.WaitStatus)
return ws.ExitStatus()
}
func GetErrorLevel(processState *os.ProcessState) (int, bool) {
if processState.Success() {
return 0, true
} else if t, ok := processState.Sys().(syscall.WaitStatus); ok {
return t.ExitStatus(), true
} else {
return 255, false
}
}
