Exemplo n.º 1
0
func suspend(g *godit) {
	// finalize termbox
	termbox.Close()

	// suspend the process
	pid := syscall.Getpid()
	tid := syscall.Gettid()
	err := syscall.Tgkill(pid, tid, syscall.SIGSTOP)
	if err != nil {
		panic(err)
	}

	// reset the state so we can get back to work again
	err = termbox.Init()
	if err != nil {
		panic(err)
	}
	termbox.SetInputMode(termbox.InputAlt)
	g.resize()
}
Exemplo n.º 2
0
// StopTracing stops tracing all threads for the given pid
func (t *PTracer) StopTracing(pid int) error {
	log.Printf("Detaching from %d", pid)

	errors := make(chan error)
	processes := make(chan *process)

	t.ops <- func() {
		// send sigstop to all threads
		process, ok := t.processes[pid]
		if !ok {
			errors <- fmt.Errorf("PID %d not found", pid)
			return
		}

		// This flag tells the thread to detach when it next stops
		process.detaching = true

		// Now send sigstop to all threads.
		for _, thread := range process.threads {
			log.Printf("sending SIGSTOP to %d", thread.tid)
			if err := syscall.Tgkill(pid, thread.tid, syscall.SIGSTOP); err != nil {
				errors <- err
				return
			}
		}

		processes <- process
	}

	select {
	case err := <-errors:
		return err
	case process := <-processes:
		<-process.detached
		return nil
	}
}
// sendSigstop sends a SIGSTOP to this thread.
func (t *thread) sendSigstop() os.Error {
	t.logTrace("sending SIGSTOP")
	err := syscall.Tgkill(t.proc.pid, t.tid, syscall.SIGSTOP)
	return os.NewSyscallError("tgkill", err)
}