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我正在做一些類的任務,它通過迭代器產生多個進程來確保每個入口被處理一次。代碼是這樣的:如何在Python中使類成員進程安全
import multiprocessing as mp
Class MyClass():
def __init__():
self.index=[blabla]
self.iterator=0
self.workers=[mp.Process(target=self.worker, args=(self.lock, args) for i in range(10)]
def worker(self, lock, args):
# I intend to use lock to make only one subprocs read index
# list until iterator goes to next
while some_condition:
lock.acquire()
now_item=self.index[self.iterator]
self._next_iter()
lock.release()
...# do something on now_item
def._next_iter(self):
#do some checks and +1 on iterator
但似乎所有的子進程開始在迭代器= 0,並做自己的循環。 我知道可以將它們與Queue()
對象同步,但如果我們不使用它,該怎麼辦?