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| -rw-r--r-- | Lib/test/test_signal.py | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/Lib/test/test_signal.py b/Lib/test/test_signal.py index 809da3a..5caf13d 100644 --- a/Lib/test/test_signal.py +++ b/Lib/test/test_signal.py @@ -504,6 +504,21 @@ class PthreadSigmaskTests(unittest.TestCase): def read_sigmask(): return signal.pthread_sigmask(signal.SIG_BLOCK, []) + if sys.platform == "darwin": + import faulthandler + # The fault handler timeout thread masks all signals. If the main + # thread masks also SIGUSR1, all threads mask this signal. In this + # case, on Mac OS X, if we send SIGUSR1 to the process, the signal + # is pending in the main or the faulthandler timeout thread. + # Unblock SIGUSR1 in the main thread calls the signal handler only + # if the signal is pending for the main thread. + # + # Stop the faulthandler timeout thread to workaround this problem. + # Another solution would be to send the signal directly to the main + # thread using pthread_kill(), but Python doesn't expose this + # function. + faulthandler.cancel_dump_tracebacks_later() + old_handler = signal.signal(signum, handler) self.addCleanup(signal.signal, signum, old_handler) |