[英]Python pause thread, do manually and reset time
我需要每隔x秒調用一次函數,但可以選擇手動調用該函數,在這種情況下需要重置時間。 我有這樣的事情:
import time
import threading
def printer():
print("do it in thread")
def do_sth(event):
while not event.is_set():
printer()
time.sleep(10)
event = threading.Event()
print("t - terminate, m - manual")
t = threading.Thread(target=do_sth, args=(event,))
t.daemon = True
t.start()
a = input()
if a == 't':
event.set()
elif a == 'm':
event.wait()
printer()
event.clear()
更新:我發現了一些對我有很大幫助的東西: Python-我可以暫停和恢復的線程現在我的代碼如下:
import threading, time, sys
class ThreadClass(threading.Thread):
def __init__(self):
threading.Thread.__init__(self)
self.can_run = threading.Event()
self.thing_done = threading.Event()
self.thing_done.set()
self.can_run.set()
def run(self):
while True:
self.can_run.wait()
try:
self.thing_done.clear()
self.do_in_thread()
finally:
self.thing_done.set()
time.sleep(5)
def pause(self):
self.can_run.clear()
self.thing_done.wait()
def resume(self):
self.can_run.set()
def do_in_thread(self):
print("Thread...1")
time.sleep(2)
print("Thread...2")
time.sleep(2)
print("Thread...3")
def do_in_main():
print("Main...1")
time.sleep(2)
print("Main...2")
time.sleep(2)
print("Main...3")
if __name__ == '__main__':
t = ThreadClass()
t.daemon = True
t.start()
while True:
i = input()
if i == 'm':
t.pause()
do_in_main()
t.resume()
elif i == 't':
sys.exit()
# t.join()
唯一的問題是,當我終止時,一個希望線程在退出之前完成其工作。
緩沖的輸出可能是罪魁禍首,因此-您正在得到預期的行為。
我將您的代碼更改為以下代碼,它似乎可以執行某些操作(如果這正是您想要的,則取決於您):
import time
import threading
def printer():
print("do it in thread")
def do_sth(event):
print("event.is_set:", event.is_set())
while not event.is_set():
printer()
time.sleep(10)
event = threading.Event()
print("t - terminate, m - manual")
t = threading.Thread(target=do_sth, args=(event,))
print("t:",t)
t.daemon = True
t.start()
a = input()
if a == 't':
event.set()
elif a == 'm':
event.wait()
printer()
event.clear()
聲明:本站的技術帖子網頁,遵循CC BY-SA 4.0協議,如果您需要轉載,請注明本站網址或者原文地址。任何問題請咨詢:yoyou2525@163.com.