42 lines
889 B
Python
42 lines
889 B
Python
# test concurrent interning of strings
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#
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# SPDX-FileCopyrightText: Copyright (c) 2016 Damien P. George on behalf of Pycom Ltd
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#
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# SPDX-License-Identifier: MIT
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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 = 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 i in range(n_thread):
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_thread.start_new_thread(th, (i * n_qstr_per_thread, n_qstr_per_thread))
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# wait for threads to finish
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while n_finished < n_thread:
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time.sleep(1)
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print("pass")
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