concurrency.py 文件源码

def __init__(self, data_flow, nr=2, cache=2):
    self._is_running = False
    self._nr = nr
    self._queue = multiprocessing.Queue(nr * cache)
    self._condition = multiprocessing.Condition()
    self._processes = [multiprocessing.Process(target=GatherMultiProcs.process_func,
                       args=(data_flow, self._queue, self._condition)) for _ in range(nr)]

    for p in self._processes:
      p.daemon = True