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2265d70add
The aim of this commit is to make it so that the existing thread tests can be used to test the _thread module on the rp2 port. The rp2 port only allows up to one thread to be created at a time, and does not have the GIL enabled. The following changes have been made: - run-tests.py skips mutation tests on rp2, because there's no GIL. - run-tests.py skips other tests on rp2 that require more than one thread. - The tests stop trying to start a new thread after there is an OSError, which indicates that the system cannot create more threads. - Some of these tests also now run the test function on the main thread, not just the spawned threads. - In some tests the output printing is adjusted so it's the same regardless of how many threads were spawned. - Some time.sleep(1) are replaced with time.sleep(0) to make the tests run a little faster (finish sooner when the work is done). For the most part the tests are unchanged for existing platforms like esp32 and unix. Signed-off-by: Damien George <damien@micropython.org>
50 lines
1.1 KiB
Python
50 lines
1.1 KiB
Python
# test concurrent interning of strings
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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 time
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import _thread
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# function to check the interned string
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def check(s, val):
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assert type(s) == str
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assert int(s) == val
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# main thread function
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def th(base, n):
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for i in range(n):
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# this will intern the string and check it
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exec("check('%u', %u)" % (base + i, base + i))
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with lock:
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global n_finished
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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_finished = 0
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n_qstr_per_thread = 100 # make 1000 for a more stressful test (uses more heap)
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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(th, (n_thread * n_qstr_per_thread, n_qstr_per_thread))
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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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th(n_thread * n_qstr_per_thread, n_qstr_per_thread)
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n_thread += 1
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# wait for threads to finish
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while n_finished < n_thread:
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time.sleep(0)
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print("pass")
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