[#35446] [Ruby 1.9 - Bug #4477][Open] Kernel:exec and backtick (`) don't work for certain system commands — Joachim Wuttke <j.wuttke@...>

10 messages 2011/03/07

[#35476] [Ruby 1.9 - Bug #4489][Open] [PATCH] Encodings with /-(unix|dos|mac)\Z/ — "James M. Lawrence" <quixoticsycophant@...>

20 messages 2011/03/10

[#35552] [Ruby 1.9 - Feature #4523][Open] Kernel#require to return the path of the loaded file — Alex Young <alex@...>

14 messages 2011/03/24

[#35565] [Ruby 1.9 - Feature #4531][Open] [PATCH 0/7] use poll() instead of select() in certain cases — Eric Wong <normalperson@...>

33 messages 2011/03/28

[#35566] [Ruby 1.9 - Feature #4532][Open] [PATCH] add IO#pread and IO#pwrite methods — Eric Wong <normalperson@...>

12 messages 2011/03/28

[#35586] [Ruby 1.9 - Feature #4538][Open] [PATCH (cleanup)] avoid unnecessary select() calls before doing I/O — Eric Wong <normalperson@...>

9 messages 2011/03/29

[ruby-core:35575] [Ruby 1.9 - Bug #4535] [PATCH] fix race in blocking send_io/recv_io

From: Eric Wong <normalperson@...>
Date: 2011-03-28 21:37:52 UTC
List: ruby-core #35575
Issue #4535 has been updated by Eric Wong.

File 0002-test-socket-test_unix.rb-test-case-for-bug-4535.patch added

I managed to get a reproducible test case working on a machine I have access to.
----------------------------------------
Bug #4535: [PATCH] fix race in blocking send_io/recv_io
http://redmine.ruby-lang.org/issues/4535

Author: Eric Wong
Status: Open
Priority: Normal
Assignee: 
Category: ext
Target version: 1.9.x
ruby -v: ruby 1.9.3dev (2011-03-28 trunk 31195) [x86_64-linux]


There is no need to call select() before entering a blocking I/O
region since other threads may run.  select() cannot guarantee
readability if the IO is shared across different
threads/processes.  Furthermore, we actually need to select() on
EAGAIN/EINTR since the functions are intended to be blocking so
we move the select() calls into the retry loop.



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