Issue #17018: Make Process.join() retry if os.waitpid() fails with EINTR.
diff --git a/Lib/test/test_multiprocessing.py b/Lib/test/test_multiprocessing.py
index f140aca..9b3f0a9 100644
--- a/Lib/test/test_multiprocessing.py
+++ b/Lib/test/test_multiprocessing.py
@@ -2105,6 +2105,38 @@
# assert self.__handled
#
+# Check that Process.join() retries if os.waitpid() fails with EINTR
+#
+
+class _TestPollEintr(BaseTestCase):
+
+ ALLOWED_TYPES = ('processes',)
+
+ @classmethod
+ def _killer(cls, pid):
+ time.sleep(0.5)
+ os.kill(pid, signal.SIGUSR1)
+
+ @unittest.skipUnless(hasattr(signal, 'SIGUSR1'), 'requires SIGUSR1')
+ def test_poll_eintr(self):
+ got_signal = [False]
+ def record(*args):
+ got_signal[0] = True
+ pid = os.getpid()
+ oldhandler = signal.signal(signal.SIGUSR1, record)
+ try:
+ killer = self.Process(target=self._killer, args=(pid,))
+ killer.start()
+ p = self.Process(target=time.sleep, args=(1,))
+ p.start()
+ p.join()
+ self.assertTrue(got_signal[0])
+ self.assertEqual(p.exitcode, 0)
+ killer.join()
+ finally:
+ signal.signal(signal.SIGUSR1, oldhandler)
+
+#
# Test to verify handle verification, see issue 3321
#