threading thread python daemon mean code example
Example 1: python daemon thread
import threading
import time
shared_resource = False
lock = threading.Lock()
def perform_computation():
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():
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)
a.start()
b.start()
Example 2: python daemon thread
import threading
import time
def print_work_a():
print('Starting of thread :', threading.currentThread().name)
time.sleep(2)
print('Finishing of thread :', threading.currentThread().name)
def print_work_b():
print('Starting of thread :', threading.currentThread().name)
print('Finishing of thread :', threading.currentThread().name)
a = threading.Thread(target=print_work_a, name='Thread-a')
b = threading.Thread(target=print_work_b, name='Thread-b')
a.start()
b.start()