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-rw-r--r--Lib/asyncio/selector_events.py11
-rw-r--r--Lib/test/test_asyncio/test_selector_events.py30
-rw-r--r--Misc/NEWS6
3 files changed, 29 insertions, 18 deletions
diff --git a/Lib/asyncio/selector_events.py b/Lib/asyncio/selector_events.py
index fb7ab2108e..9564d01dfa 100644
--- a/Lib/asyncio/selector_events.py
+++ b/Lib/asyncio/selector_events.py
@@ -569,6 +569,7 @@ class _SelectorTransport(transports._FlowControlMixin,
self._loop.remove_reader(self._sock_fd)
if not self._buffer:
self._conn_lost += 1
+ self._loop.remove_writer(self._sock_fd)
self._loop.call_soon(self._call_connection_lost, None)
# On Python 3.3 and older, objects with a destructor part of a reference
@@ -662,6 +663,8 @@ class _SelectorSocketTransport(_SelectorTransport):
logger.debug("%r resumes reading", self)
def _read_ready(self):
+ if self._conn_lost:
+ return
try:
data = self._sock.recv(self.max_size)
except (BlockingIOError, InterruptedError):
@@ -721,6 +724,8 @@ class _SelectorSocketTransport(_SelectorTransport):
def _write_ready(self):
assert self._buffer, 'Data should not be empty'
+ if self._conn_lost:
+ return
try:
n = self._sock.send(self._buffer)
except (BlockingIOError, InterruptedError):
@@ -891,6 +896,8 @@ class _SelectorSslTransport(_SelectorTransport):
logger.debug("%r resumes reading", self)
def _read_ready(self):
+ if self._conn_lost:
+ return
if self._write_wants_read:
self._write_wants_read = False
self._write_ready()
@@ -923,6 +930,8 @@ class _SelectorSslTransport(_SelectorTransport):
self.close()
def _write_ready(self):
+ if self._conn_lost:
+ return
if self._read_wants_write:
self._read_wants_write = False
self._read_ready()
@@ -1000,6 +1009,8 @@ class _SelectorDatagramTransport(_SelectorTransport):
return sum(len(data) for data, _ in self._buffer)
def _read_ready(self):
+ if self._conn_lost:
+ return
try:
data, addr = self._sock.recvfrom(self.max_size)
except (BlockingIOError, InterruptedError):
diff --git a/Lib/test/test_asyncio/test_selector_events.py b/Lib/test/test_asyncio/test_selector_events.py
index 8ad55358b1..5dc6ff8e66 100644
--- a/Lib/test/test_asyncio/test_selector_events.py
+++ b/Lib/test/test_asyncio/test_selector_events.py
@@ -1087,17 +1087,6 @@ class SelectorSocketTransportTests(test_utils.TestCase):
err,
'Fatal write error on socket transport')
- @mock.patch('asyncio.base_events.logger')
- def test_write_ready_exception_and_close(self, m_log):
- self.sock.send.side_effect = OSError()
- remove_writer = self.loop.remove_writer = mock.Mock()
-
- transport = self.socket_transport()
- transport.close()
- transport._buffer.extend(b'data')
- transport._write_ready()
- remove_writer.assert_called_with(self.sock_fd)
-
def test_write_eof(self):
tr = self.socket_transport()
self.assertTrue(tr.can_write_eof())
@@ -1121,6 +1110,14 @@ class SelectorSocketTransportTests(test_utils.TestCase):
self.sock.shutdown.assert_called_with(socket.SHUT_WR)
tr.close()
+ @mock.patch('asyncio.base_events.logger')
+ def test_transport_close_remove_writer(self, m_log):
+ remove_writer = self.loop.remove_writer = mock.Mock()
+
+ transport = self.socket_transport()
+ transport.close()
+ remove_writer.assert_called_with(self.sock_fd)
+
@unittest.skipIf(ssl is None, 'No ssl module')
class SelectorSslTransportTests(test_utils.TestCase):
@@ -1175,7 +1172,7 @@ class SelectorSslTransportTests(test_utils.TestCase):
self.sslsock.do_handshake.side_effect = exc
with test_utils.disable_logger():
waiter = asyncio.Future(loop=self.loop)
- transport = self.ssl_transport(waiter=waiter)
+ self.ssl_transport(waiter=waiter)
self.assertTrue(waiter.done())
self.assertIs(exc, waiter.exception())
self.assertTrue(self.sslsock.close.called)
@@ -1374,20 +1371,19 @@ class SelectorSslTransportTests(test_utils.TestCase):
def test_write_ready_send_closing(self):
self.sslsock.send.return_value = 4
transport = self._make_one()
- transport.close()
transport._buffer = list_to_buffer([b'data'])
+ transport.close()
transport._write_ready()
- self.assertFalse(self.loop.writers)
self.protocol.connection_lost.assert_called_with(None)
def test_write_ready_send_closing_empty_buffer(self):
self.sslsock.send.return_value = 4
+ call_soon = self.loop.call_soon = mock.Mock()
transport = self._make_one()
- transport.close()
transport._buffer = list_to_buffer()
+ transport.close()
transport._write_ready()
- self.assertFalse(self.loop.writers)
- self.protocol.connection_lost.assert_called_with(None)
+ call_soon.assert_called_with(transport._call_connection_lost, None)
def test_write_ready_send_retry(self):
transport = self._make_one()
diff --git a/Misc/NEWS b/Misc/NEWS
index 10d7caee4b..c40fc4b25c 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -520,6 +520,10 @@ Library
- Issue #27041: asyncio: Add loop.create_future method
+- Issue #27223: asyncio: Fix _read_ready and _write_ready to respect
+ _conn_lost.
+ Patch by Ɓukasz Langa.
+
IDLE
----
@@ -709,7 +713,7 @@ Tools/Demos
Misc
----
-- Issue #17500, and https://github.com/python/pythondotorg/issues/945: Remove
+- Issue #17500, and https://github.com/python/pythondotorg/issues/945: Remove
unused and outdated icons.