kopia lustrzana https://github.com/micropython/micropython
50 wiersze
1.1 KiB
Python
50 wiersze
1.1 KiB
Python
# test that we can run the garbage collector within threads
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#
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# MIT license; Copyright (c) 2016 Damien P. George on behalf of Pycom Ltd
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import gc
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import _thread
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def thread_entry(n):
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# allocate a bytearray and fill it
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data = bytearray(i for i in range(256))
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# do some work and call gc.collect() a few times
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for i in range(n):
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for i in range(len(data)):
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data[i] = data[i]
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gc.collect()
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# check whether the data remains intact and indicate we are finished
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with lock:
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global n_correct, n_finished
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n_correct += list(data) == list(range(256))
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n_finished += 1
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lock = _thread.allocate_lock()
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n_thread = 0
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n_thread_max = 4
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n_correct = 0
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n_finished = 0
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# spawn threads
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for _ in range(n_thread_max):
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try:
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_thread.start_new_thread(thread_entry, (10,))
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n_thread += 1
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except OSError:
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# System cannot create a new thead, so stop trying to create them.
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break
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# also run the function on this main thread
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thread_entry(10)
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n_thread += 1
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# busy wait for threads to finish
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while n_finished < n_thread:
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pass
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print(n_correct == n_finished)
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