Issue 25471: socket.recv() blocks while it's gettimeout() returns 0.0 - Python tracker [proxy]

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classification

Title:	socket.recv() blocks while it's gettimeout() returns 0.0
Type:		Stage:	resolved
Components:		Versions:	Python 3.5, Python 2.7

process

Status:	closed	Resolution:	fixed
Dependencies:		Superseder:
Assigned To:		Nosy List:	animus, python-dev
Priority:	normal	Keywords:

Created on 2015-10-24 23:03 by animus, last changed 2015-10-25 03:07 by python-dev. This issue is now closed.

Files
File name	Uploaded	Description	Edit
s1.py	animus, 2015-10-24 23:14

Messages (3)
msg253418 - (view)	Author: Alexey Gorshkov (animus)	Date: 2015-10-24 23:03
socket created with listening socket set to setblocking(False). gettimeout() of accept()-returned socket returns 0.0 , but recv() method blocks while client is connected and not sending any data. If client disconnects, socket returned by accept() starting return 0-length bytes string without blocking. glibc doc on recv(): --- If nonblocking mode is set for SOCKET, and no data are available to be read, 'recv' fails immediately rather than waiting. --- testing server and client code attached. tested with Python 3.5.0 and Python 2.7.10
msg253419 - (view)	Author: Alexey Gorshkov (animus)	Date: 2015-10-24 23:10
telnet 127.0.0.1 9000 can be used as testing client
msg253420 - (view)	Author: Roundup Robot (python-dev)	Date: 2015-10-25 03:07
New changeset 10e044a734f3 by Benjamin Peterson in branch '3.4': accepted sockets shouldn't inherit the SOCK_NONBLOCK flag (closes #25471) https://hg.python.org/cpython/rev/10e044a734f3 New changeset 7577960ea17b by Benjamin Peterson in branch '3.5': merge 3.4 (#25471) https://hg.python.org/cpython/rev/7577960ea17b New changeset 347221cfa224 by Benjamin Peterson in branch 'default': merge 3.5 (#25471) https://hg.python.org/cpython/rev/347221cfa224

History
Date	User	Action	Args
2015-10-25 03:07:43	python-dev	set	status: open -> closed nosy: + python-dev messages: + msg253420 resolution: fixed stage: resolved
2015-10-24 23:14:47	animus	set	files: + s1.py
2015-10-24 23:14:30	animus	set	files: - s1.py
2015-10-24 23:10:41	animus	set	messages: + msg253419
2015-10-24 23:03:29	animus	create