#!/usr/bin/python
# -*- Coding: utf-8 -*-

import os
import sys
import threading, Queue

def run(q, args):
    ret = os.spawnvp(os.P_WAIT, args[0], args)
    q.put(ret)

while True:
    cmd = raw_input('$ ')
    if cmd.strip() == "exit": sys.exit(0)
    if cmd.strip() == "": continue
    argv = cmd.split()
    q = Queue.Queue()
    t = threading.Thread(
                         name='subprocess', 
                         target=run, 
                         args=(q, argv)
                        )
    t.start()
    print "Wait for thread running (%s)" % argv[0]
    t.join()
    ret = q.get()
    print "Thread finished."
    print "Prosess returned with (%d)" % ret