Re: pthread memory leaks

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From	Ian Collins <ian-news@hotmail.com>
Newsgroups	comp.lang.c++
Subject	Re: pthread memory leaks
Date	Wed, 01 Jun 2011 21:05:31 +1200
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On 06/ 1/11 08:27 PM, Jorgen Grahn wrote:
> On Tue, 2011-05-31, Adam Skutt wrote:
>> On May 30, 7:29 pm, jakash3<jakashth...@gmail.com>  wrote:
>>> I'm experimenting with signals and conditional variables  to implement
>>> thread suspension.
>>
>> Don't.  It will only work on Linux, and even then, you'll run into
>> many subtle and difficult to debug issues.  Threads and signals simply
>> do not mix, period.  Even if you get your internal signal delivery
>> working, you still have to make sure you properly cope with externally
>> delivered signals as well, which can be tricky or outright
>> impossible.
>
> A short offtopic question to that: with signals being such an integral
> part of Linux, aren't you really saying Linux and threads don't mix?
> Or are you taking differences beween Linux and other Unixes into
> account here?

Maybe you are think of the older Linux Threads (where a thread was 
process), used before Linux adopted POSIX threads?

> I'm asking because I recently read an article where the author
> asserted that mixing signals and pthreads [specifically on Linux] is
> much simpler than people think. (No, I don't have the URL handy, and
> no, I don't trust that author absolutely.)

It generally is, just so long as you don't try and use any pthread call 
in a signal handler!  One of the most convenient uses is to dedicate a 
thread to handling the process' signals.

-- 
Ian Collins

Thread

pthread memory leaks jakash3 <jakashthree@gmail.com> - 2011-05-30 16:29 -0700
  Re: pthread memory leaks Ian Collins <ian-news@hotmail.com> - 2011-05-31 11:50 +1200
    Re: pthread memory leaks Ian Collins <ian-news@hotmail.com> - 2011-05-31 11:52 +1200
      Re: pthread memory leaks Puppet_Sock <puppet_sock@hotmail.com> - 2011-05-31 06:46 -0700
    Re: pthread memory leaks jakash3 <jakashthree@gmail.com> - 2011-05-30 17:00 -0700
      Re: pthread memory leaks Ian Collins <ian-news@hotmail.com> - 2011-05-31 12:02 +1200
        Re: pthread memory leaks jakash3 <jakashthree@gmail.com> - 2011-05-30 17:05 -0700
          Re: pthread memory leaks yatremblay@bel1lin202.(none) (Yannick Tremblay) - 2011-06-06 09:38 +0000
  Re: pthread memory leaks Stuart Redmann <DerTopper@web.de> - 2011-05-31 00:16 -0700
    Re: pthread memory leaks "Chris M. Thomasson" <cristom@charter.net> - 2011-06-10 15:46 -0700
  Re: pthread memory leaks Adam Skutt <askutt@gmail.com> - 2011-05-31 03:20 -0700
    Re: pthread memory leaks Jorgen Grahn <grahn+nntp@snipabacken.se> - 2011-06-01 08:27 +0000
      Re: pthread memory leaks Miles Bader <miles@gnu.org> - 2011-06-01 17:39 +0900
      Re: pthread memory leaks Ian Collins <ian-news@hotmail.com> - 2011-06-01 21:05 +1200
        Re: pthread memory leaks Adam Skutt <askutt@gmail.com> - 2011-06-01 03:27 -0700
      Re: pthread memory leaks Adam Skutt <askutt@gmail.com> - 2011-06-01 03:16 -0700

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