Issue #16955: Fix the poll() method for multiprocessing's socket
connections on Windows.
diff --git a/Lib/multiprocessing/connection.py b/Lib/multiprocessing/connection.py
index 2ae8a81..25b0326 100644
--- a/Lib/multiprocessing/connection.py
+++ b/Lib/multiprocessing/connection.py
@@ -405,7 +405,7 @@
return self._recv(size)
def _poll(self, timeout):
- r = wait([self._handle], timeout)
+ r = wait([self], timeout)
return bool(r)
diff --git a/Lib/test/test_multiprocessing.py b/Lib/test/test_multiprocessing.py
index 533dbac..bb09638 100644
--- a/Lib/test/test_multiprocessing.py
+++ b/Lib/test/test_multiprocessing.py
@@ -2383,6 +2383,17 @@
p.join()
l.close()
+ def test_issue16955(self):
+ for fam in self.connection.families:
+ l = self.connection.Listener(family=fam)
+ c = self.connection.Client(l.address)
+ a = l.accept()
+ a.send_bytes(b"hello")
+ self.assertTrue(c.poll(1))
+ a.close()
+ c.close()
+ l.close()
+
class _TestPoll(unittest.TestCase):
ALLOWED_TYPES = ('processes', 'threads')