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32 lines
596 B
Python
32 lines
596 B
Python
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# Test accuracy of sleep within a thread.
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import time
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import _thread
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def sleep(t, valid_range):
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t0 = time.time_ns()
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time.sleep(t)
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dt_ms = (time.time_ns() - t0) // 1_000_000
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if dt_ms in valid_range:
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print("dt in range", t)
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else:
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print("dt not in range:", dt_ms)
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def thread_entry():
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lock.acquire()
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print("thread start")
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sleep(0.2, range(180, 400))
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print("thread end")
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lock = _thread.allocate_lock()
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lock.acquire()
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_thread.start_new_thread(thread_entry, ())
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print("main start")
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lock.release()
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sleep(0.5, range(480, 800))
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print("main end")
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