[#47409] [ruby-trunk - Feature #6973][Open] Add an #integral? method to Numeric to test for whole-number values — "regularfry (Alex Young)" <alex@...>

12 messages 2012/09/03

[#47481] [ruby-trunk - Bug #7008][Open] rake is crashing when trying to compile ffi gem — "drookie (Eugene M. Zheganin Eugene M. Zheganin)" <eugene@...>

10 messages 2012/09/12

[#47505] [ruby-trunk - Feature #7019][Open] allow `private` and `protected` keywords to take blocks — "alexeymuranov (Alexey Muranov)" <redmine@...>

15 messages 2012/09/13

[#47582] [ruby-trunk - Bug #7037][Open] float formatting inconsistently rounds half to even — "headius (Charles Nutter)" <headius@...>

14 messages 2012/09/19

[#47638] [ruby-trunk - Bug #7046][Open] ERB#run and ERB#result are not safe for concurrent use — "headius (Charles Nutter)" <headius@...>

11 messages 2012/09/21

[#47655] [ruby-trunk - Feature #7051][Open] Extend caller_locations API to include klass and bindings. Allow caller_locations as a method hanging off Thread. — "sam.saffron (Sam Saffron)" <sam.saffron@...>

13 messages 2012/09/23

[#47657] [ruby-trunk - Feature #7055][Open] Allow `.foo=` as a synonym of `self.foo=` — "alexeymuranov (Alexey Muranov)" <redmine@...>

11 messages 2012/09/23

[#47730] [ruby-trunk - Bug #7085][Open] Subversion → GitHub gateway stops. — "shyouhei (Shyouhei Urabe)" <shyouhei@...>

27 messages 2012/09/29

[#47735] [ruby-trunk - Bug #7087][Open] ::ConditionVariable#wait does not work with Monitor because Monitor#sleep does not exist — "rklemme (Robert Klemme)" <shortcutter@...>

10 messages 2012/09/29

[#47759] [ruby-trunk - Bug #7092][Open] StringScanner start-of-line matches false positives, while lookbehind for a newline gives false negatives — "jayferd (Jay Adkisson)" <jjmadkisson@...>

8 messages 2012/09/30

[ruby-core:47692] Re: [ruby-trunk - Bug #6822] Race Condition with Fiber and Process

From: SASADA Koichi <ko1@...>
Date: 2012-09-25 07:51:58 UTC
List: ruby-core #47692
(2012/09/22 15:45), MartinBosslet (Martin Bosslet) wrote:
>> >  No.  You don't need Mutex at all.
>> >  You only need to use variables (such as global variables).
> Now I'm confused. How would I write the example code without getting the FiberErrors? Since I have no control over when a child process exits, I can't control when the 'trap(:CHLD)' block calls Fiber#resume, no? I thought I would have to do some form of manual synchronization there, to avoid the race condition. Sorry to bug you :)

Now, I understand your issue.  This is not a Fiber problem, but
concurrency problem with signal.

I recommend that you shouldn't use  Fiber.resume in a trap handler.  In
the trap handler, you should only set a flag and make flag sense in main.

-- 
// SASADA Koichi at atdot dot net

In This Thread