8000 [3.6] bpo-33674: asyncio: Fix SSLProtocol race (GH-7175) by vstinner · Pull Request #7188 · python/cpython · GitHub
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[3.6] bpo-33674: asyncio: Fix SSLProtocol race (GH-7175) #7188

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Merged
1st1 merged 1 commit into from
May 29, 2018
Merged

[3.6] bpo-33674: asyncio: Fix SSLProtocol race (GH-7175) #7188

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2 changes: 1 addition & 1 deletion Lib/asyncio/sslproto.py
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Original file line number Diff line number Diff line change
Expand Up @@ -574,7 +574,7 @@ def _start_handshake(self):
# (b'', 1) is a special value in _process_write_backlog() to do
# the SSL handshake
self._write_backlog.append((b'', 1))
self._loop.call_soon(self._process_write_backlog)
self._process_write_backlog()

def _on_handshake_complete(self, handshake_exc):
self._in_handshake = False
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4 changes: 4 additions & 0 deletions Misc/NEWS.d/next/Library/2018-05-28-22-49-59.bpo-33674.6LFFj7.rst
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Original file line number Diff line number Diff line change
@@ -0,0 +1,4 @@
Fix a race condition in SSLProtocol.connection_made() of asyncio.sslproto:
start immediately the handshake instead of using call_soon(). Previously,
data_received() could be called before the handshake started, causing the
handshake to hang or fail.
0