import socket, select, os, time, stat

SockPath = "/tmp/testsock.sock"

if os.fork() != 0:

    # Parent - server:
    try:
        if stat.S_ISSOCK(os.stat(SockPath)[stat.ST_MODE]):
            os.unlink(SockPath)
        else:
            raise Exception, "%s exists but is not a socket" % SockPath
    except OSError:
        pass # ok, file does not exist

    s = socket.socket(socket.AF_UNIX, socket.SOCK_SEQPACKET)
    s.setblocking(0)
    s.bind(SockPath)
    s.listen(1)

    p = select.poll()
    p.register(s, select.POLLIN)

    print "Server started"

    while True:
        result = p.poll()
        if result is not None:
            for fd, event in result:
                if fd == s.fileno():
                    s.accept() # and discard
                    print "Accepted"

else:

    # Child
    time.sleep(1)
    s = socket.socket(socket.AF_UNIX, socket.SOCK_SEQPACKET)
    s.connect(SockPath)
    del s
    print "Child connected ok, exitting"