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)
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:
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。
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>多处理编码>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。 程序编码>,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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