[英]How can I make sure that two function calls are always made consecutively with multiple threads in Python?
我這樣使用Pathos:
from pathos.multiprocessing import ProcessingPool as Pool
def foo(bar):
fn1(bar)
fn2(bar)
Pool().map(foo, data)
我希望將fn1
和fn2
作為一個原子操作執行,以使沒有線程可以按fn1, fn1, fn2, fn2
類的順序生成函數調用。
您需要使用文檔中描述的鎖。
def foo(lock, bar):
lock.acquire()
try:
fn1(bar)
fn2(bar)
finally:
lock.release()
if __name__ == '__main__':
lock = Lock()
Pool().map(foo, [(l, d) for d in data])
但是,如果不想並行調用函數,為什么還要使用多處理?
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