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| author | Victor Stinner <vstinner@redhat.com> | 2018-06-07 22:25:52 (GMT) |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2018-06-07 22:25:52 (GMT) |
| commit | 79790bc35fe722a49977b52647f9b5fe1deda2b7 (patch) | |
| tree | b1b3da290ccfb7055c94e937cd1edc0282bf7a38 /Misc | |
| parent | d3ed67d14ed401dfe2b5d07b6941adc3ecacb268 (diff) | |
| download | cpython-79790bc35fe722a49977b52647f9b5fe1deda2b7.zip cpython-79790bc35fe722a49977b52647f9b5fe1deda2b7.tar.gz cpython-79790bc35fe722a49977b52647f9b5fe1deda2b7.tar.bz2 | |
bpo-33694: Fix race condition in asyncio proactor (GH-7498)
The cancellation of an overlapped WSARecv() has a race condition
which causes data loss because of the current implementation of
proactor in asyncio.
No longer cancel overlapped WSARecv() in _ProactorReadPipeTransport
to work around the race condition.
Remove the optimized recv_into() implementation to get simple
implementation of pause_reading() using the single _pending_data
attribute.
Move _feed_data_to_bufferred_proto() to protocols.py.
Remove set_protocol() method which became useless.
Diffstat (limited to 'Misc')
| -rw-r--r-- | Misc/NEWS.d/next/Library/2018-06-07-23-51-00.bpo-33694.F1zIR1.rst | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/Misc/NEWS.d/next/Library/2018-06-07-23-51-00.bpo-33694.F1zIR1.rst b/Misc/NEWS.d/next/Library/2018-06-07-23-51-00.bpo-33694.F1zIR1.rst new file mode 100644 index 0000000..6b7f15c --- /dev/null +++ b/Misc/NEWS.d/next/Library/2018-06-07-23-51-00.bpo-33694.F1zIR1.rst @@ -0,0 +1,2 @@ +asyncio: Fix a race condition causing data loss on +pause_reading()/resume_reading() when using the ProactorEventLoop. |