pyobjc_libdispatch_gcd_async_queue_example.py

1import libdispatch
2import threading
3import time
4
5# Create a serial dispatch queue
6queue = libdispatch.dispatch_queue_create("com.example.my_queue", None)
7
8# Use an event to synchronize the main thread with the async block
9done = threading.Event()
10
11def my_task():
12    print(f"Task running on a background queue: {threading.current_thread().name}")
13    time.sleep(1)
14    print("Task completed.")
15    done.set()
16
17# Dispatch the task asynchronously
18print("Dispatching task...")
19libdispatch.dispatch_async(queue, my_task)
20
21# Wait for the task to finish before exiting
22print("Main thread waiting...")
23done.wait()
24print("Done.")