Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]


Groups > comp.programming.threads > #191

Re: cond signal wait

From Alexander Terekhov <terekhov@web.de>
Newsgroups comp.programming.threads
Subject Re: cond signal wait
Date 2011-05-25 19:16 +0200
Organization A noiseless patient Spider
Message-ID <4DDD3950.81DEDF32@web.de> (permalink)
References (1 earlier) <87aaebte7o.fsf@justsoftwaresolutions.co.uk> <98cd47de-73d9-48e9-ac18-cc01cac1bb48@z7g2000prh.googlegroups.com> <87lixubzfu.fsf@justsoftwaresolutions.co.uk> <a05141df-cede-4929-9e8d-4b9394fd6858@22g2000prx.googlegroups.com> <87hb8ibwur.fsf@justsoftwaresolutions.co.uk>

Show all headers | View raw


Anthony Williams wrote:

[...]

> void signaller()
> {
>         lock mutex;
>         // if we get here, waiter() hasn't yet executed **A**
>         // or is blocked in **B**, so will be woken by signal
>         // or has executed line **C** so doesn't care about signal
>         mark data as ready;
>         signal condvar;
>         unlock mutex;
> }
          lock mutex;
          // if we get here, waiter() hasn't yet executed **A**
          // or is blocked in **B**, so will be woken by signal
          // or has executed line **C** so doesn't care about signal
          mark data as ready;
          unlock mutex;
          signal condvar;

is the regular case.

signalling prior to unlock is special.

regards,
alexander.

Back to comp.programming.threads | Previous | Next — Previous in thread | Next in thread | Find similar | Unroll thread


Thread

cond signal wait p6 c6d6 <p6c6d6@gmail.com> - 2011-05-24 18:56 -0700
  Re: cond signal wait Anthony Williams <anthony.ajw@gmail.com> - 2011-05-25 08:46 +0100
    Re: cond signal wait p6 c6d6 <p6c6d6@gmail.com> - 2011-05-25 05:44 -0700
      Re: cond signal wait Anthony Williams <anthony.ajw@gmail.com> - 2011-05-25 15:57 +0100
        Re: cond signal wait p6 c6d6 <p6c6d6@gmail.com> - 2011-05-25 08:34 -0700
          Re: cond signal wait Anthony Williams <anthony.ajw@gmail.com> - 2011-05-25 16:53 +0100
            Re: cond signal wait Alexander Terekhov <terekhov@web.de> - 2011-05-25 19:16 +0200
          Re: cond signal wait David Schwartz <davids@webmaster.com> - 2011-05-26 09:51 -0700
          Re: cond signal wait Joshua Maurice <joshuamaurice@gmail.com> - 2011-05-26 14:48 -0700
            Re: cond signal wait David Schwartz <davids@webmaster.com> - 2011-05-26 23:20 -0700
              Re: cond signal wait Joshua Maurice <joshuamaurice@gmail.com> - 2011-05-27 14:50 -0700
                Re: cond signal wait David Schwartz <davids@webmaster.com> - 2011-05-27 15:15 -0700
                Re: cond signal wait Alexander Terekhov <terekhov@web.de> - 2011-05-28 15:48 +0200
            Re: cond signal wait Alexander Terekhov <terekhov@web.de> - 2011-05-27 16:01 +0200
              Re: cond signal wait David Schwartz <davids@webmaster.com> - 2011-05-27 12:34 -0700
                Re: cond signal wait Alexander Terekhov <terekhov@web.de> - 2011-05-28 14:24 +0200
                Re: cond signal wait David Schwartz <davids@webmaster.com> - 2011-05-29 01:33 -0700
                Re: cond signal wait Alexander Terekhov <terekhov@web.de> - 2011-05-31 15:32 +0200
                Re: cond signal wait David Schwartz <davids@webmaster.com> - 2011-05-31 14:07 -0700

csiph-web