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process process process process
原标题:Python locks that go away when process dies

是否存在任何锁定的沙丘接口,在该进程消失时自动打破僵局? 我的印象是,先验允许这样做,但我仍然试图说明细节。

我期望接口能做到:

  • lock / release functions
  • working between different processes on Linux
  • automatic unlock when the process holding the lock dies
  • forced lock breaking on timeout (not necessary)
最佳回答

您可使用<条码>fcntl.lockf或<条码>fcntl.flock 。 这似乎符合你的所有标准。 或者,在你想要锁定或锁定时,你是否需要一个系统。

问题回答

I usually use a try ... finally block to release a lock. e.g.

try:
    #do stuff
except Exception:
    pass
finally:
    #release lock

您可尝试<代码>Lock中的物体,载于<编码>多处理包。 我不敢确定在收集垃圾处理时锁定,但你可以总是排在<代码>多处理。 程序,如:

class MyProc(multiprocessing.Process):
    def __init__(self):
        self.ipc_lock = multiprocessing.Lock()
        # ...
        return
    def __del__(self):
        self.ipc_lock.release()
        return

如果发生例外情况,你需要打破僵局,那么在<代码>run<<>>/代码>中就说明了这一点。





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