checks if machine has exited and error on PID function

jeromegn · jeromegn · commit 1458000e7c92 · 2019-07-10T16:35:49.000-04:00
diff --git a/machine.go b/machine.go
@@ -168,6 +168,11 @@ func (m *Machine) PID() (int, error) {
 	if m.cmd == nil || m.cmd.Process == nil {
 		return 0, fmt.Errorf("machine is not running")
 	}
+	select {
+	case <-m.exitCh:
+		return 0, fmt.Errorf("machine process has exited")
+	default:
+	}
 	return m.cmd.Process.Pid, nil
 }
 

Original file line number	Diff line number	Diff line change
`@@ -168,6 +168,11 @@ func (m *Machine) PID() (int, error) {`
`168`	`168`	`if m.cmd == nil \|\| m.cmd.Process == nil {`
`169`	`169`	`return 0, fmt.Errorf("machine is not running")`
`170`	`170`	`}`
	`171`	`+ select {`
	`172`	`+ case <-m.exitCh:`
	`173`	`+ return 0, fmt.Errorf("machine process has exited")`
	`174`	`+ default:`
	`175`	`+ }`
`171`	`176`	`return m.cmd.Process.Pid, nil`
`172`	`177`	`}`
`173`	`178`