test_asyncio hangs on Windows

[vstinner]

BPO	20455
Nosy	@gvanrossum, @vstinner

^{Note: these values reflect the state of the issue at the time it was migrated and might not reflect the current state.}

Show more details

GitHub fields:

assignee = None
closed_at = <Date 2014-02-02.22:21:33.210>
created_at = <Date 2014-01-31.13:15:00.613>
labels = []
title = 'test_asyncio hangs on Windows'
updated_at = <Date 2014-02-02.22:21:33.209>
user = 'https://github.com/vstinner'

bugs.python.org fields:

activity = <Date 2014-02-02.22:21:33.209>
actor = 'vstinner'
assignee = 'none'
closed = True
closed_date = <Date 2014-02-02.22:21:33.210>
closer = 'vstinner'
components = []
creation = <Date 2014-01-31.13:15:00.613>
creator = 'vstinner'
dependencies = []
files = []
hgrepos = []
issue_num = 20455
keywords = []
message_count = 4.0
messages = ['209783', '209785', '209786', '209797']
nosy_count = 4.0
nosy_names = ['gvanrossum', 'vstinner', 'python-dev', 'sbt']
pr_nums = []
priority = 'normal'
resolution = 'fixed'
stage = None
status = 'closed'
superseder = None
type = None
url = 'https://bugs.python.org/issue20455'
versions = ['Python 3.4']

[vstinner]

It's probably a regression caused by my changeset 73dbb884eb09 which fixed a bug (issue bpo-20449).

Related Tulip issue:
http://code.google.com/p/tulip/issues/detail?id=121

[python-dev]

New changeset 4c496d53b1e1 by Victor Stinner in branch 'default':
Issue bpo-20455: asyncio: write a new write pipe transport class for proactor (on
http://hg.python.org/cpython/rev/4c496d53b1e1

[vstinner]

I commited my patch before a review (even if Guido already wrote me that the approach is correct) because I wanted to unblock Windows buildbots (which were all red).

Please review http://hg.python.org/cpython/rev/4c496d53b1e1

[vstinner]

(I removed the message msg209795 because the commits are related to bpo-20452, not to this issue.)