python daemon thread
import threading import time def func_1(): while True: print(f"[{threading.current_thread().name}] Printing this message every 2 seconds") time.sleep(2) # initiate the thread with daemon set to True daemon_thread = threading.Thread(target=func_1, name="daemon-thread", daemon=True) # or # daemon_thread.daemon = True # or # daemon_thread.setDaemon(True) daemon_thread.start() # sleep for 10 seconds and end the main thread time.sleep(4) # the main thread ends
python daemon thread
import threading import time shared_resource = False # Set the resource to False initially lock = threading.Lock() # A lock for the shared resource def perform_computation(): # Thread A will call this function and manipulate the resource print(f'Thread {threading.currentThread().name} - performing some computation....') shared_resource = True print(f'Thread {threading.currentThread().name} - set shared_resource to True!') print(f'Thread {threading.currentThread().name} - Finished!') time.sleep(1) def monitor_resource(): # Thread B will monitor the shared resource while shared_resource == False: time.sleep(1) print(f'Daemon Thread {threading.currentThread().name} - Detected shared_resource = False') time.sleep(1) print(f'Daemon Thread {threading.currentThread().name} - Finished!') if __name__ == '__main__': a = threading.Thread(target=perform_computation, name='A') b = threading.Thread(target=monitor_resource, name='B', daemon=True) # Make thread B as a daemon thread # Now start both threads a.start() b.start()
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