CODEWITHSUNDEEP
python
Amin Etesamian
Amin Etesamian

Reputation: 3699

is there a way to put a thread into sleep from outside of the thread?

import time
import threading


def do_something():
    while True:
        time.sleep(0.5)
        print('I am alive')


def main():
    while True:
        time.sleep(1)
        print('Hello')


daemon_thread = threading.Thread(target=do_something, daemon=True)
daemon_thread.start()
main()

Is there a way I be able to put daemon_thread to sleep for example for 3 seconds from outside of do_something()? I mean something hypothetical like daemon_thread.sleep(3)?

Upvotes: 0

Views: 69

Answers (1)

Tankobot
Tankobot

Reputation: 1602

Create a counter for half seconds and then make the sleep function increment that counter:

lock = Lock()
counter = 0


def do_something():
    global counter
    while True:
        time.sleep(0.5)
        with lock:
            if counter == 0:
                print('I am alive')
            else:
                counter -= 1


def increment(seconds):
    global counter
    with lock:
        counter += 2*seconds


# after starting thread

increment(3)  # make the thread wait three seconds before continuing

Upvotes: 1

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