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如何在python线程完成时通知

callback multithreading python

-1

Manoj gowda · 技术社区 · 2 年前

我想在线程完成时调用回调函数。它应该是线程安全的

我希望解决方案在线程完成时调用回调函数,并且它应该是线程安全的。

my_thread = threading.Thread(target=do_work)
my_thread.finished.connect(thread_finished)
my_thread.start()

1 回复 | 直到 2 年前

Frank Yellin 2 年前

你最好的选择是期货。

from concurrent.futures import ThreadPoolExecutor
from time import sleep

def do_work():
    sleep(2)
    return 10

def im_done(future):
    print("Result of future is", future.result())

with ThreadPoolExecutor() as executor:
    future = executor.submit(do_work)
    future.add_done_callback(im_done)

-1

Mahalakshmi D 2 年前

你可以用这个解决方案为我工作。而且它是线程安全的。



import time
from threading import Thread
from pyrvsignal import Signal


class MyThread(Thread):
    started = Signal()
    finished = Signal()

    def __init__(self, target, args):
        self.target = target
        self.args = args
        Thread.__init__(self)

    def run(self) -> None:
        self.started.emit()
        self.target(*self.args)
        self.finished.emit()


def do_my_work(details):
    print(f"Doing work: {details}")
    time.sleep(10)

def started_work():
    print("Started work")
    
def finished_work():
    print("Work finished")

thread = MyThread(target=do_my_work, args=("testing",))
thread.started.connect(started_work)
thread.finished.connect(finished_work)
thread.start()

请参阅- Notify threading events