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Groups > comp.programming.threads > #443

Re: Interlocked operations, volatile

From Alexander Terekhov <terekhov@web.de>
Newsgroups comp.programming.threads
Subject Re: Interlocked operations, volatile
Date 2011-07-14 23:05 +0200
Organization A noiseless patient Spider
Message-ID <4E1F5A20.2568A5DD@web.de> (permalink)
References (2 earlier) <c66aeae2-aac5-40b0-ba90-8836c6c5cb45@m10g2000yqd.googlegroups.com> <6f742fb4-cb39-4b56-b062-4eeb1e51ebdb@h25g2000prf.googlegroups.com> <3806a754-4ec5-4e71-be4d-318db1760557@u24g2000prn.googlegroups.com> <7232157d-7a0a-43e6-8462-dca56a861dd0@t9g2000vbs.googlegroups.com> <aa6c3fde-aef6-413d-b18e-585fff1379c8@j14g2000prn.googlegroups.com>

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David Schwartz wrote:
> 
> On Jul 14, 8:52 am, Andrew Che <libera.ven...@gmail.com> wrote:
> 
> > Couldn't You give an (C++) example that demonstrates difference
> > between:
> > 1) concurrent write with locks and read WITH locks
> > 2) concurrent write with locks and read WITHOUT locks
> 
> > I mean I would like to see a program that prints something like "a" in
> > case 1) and "aaaa" in case 2) because races are.
> 
> Not really. C++ provides no way to have concurrent flows of execution.

Upcomming C++11 does provide threading...

> And whatever scheme we use to have concurrent flows of execution will
> also include rules that prohibit concurrent write and read without
> locks.

... and atomics (concurrent write and read without locks allowed).

regards,
alexander.

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Thread

Interlocked operations, volatile Andrew Che <libera.ventis@gmail.com> - 2011-07-13 09:43 -0700
  Re: Interlocked operations, volatile Alexander Terekhov <terekhov@web.de> - 2011-07-13 20:03 +0200
  Re: Interlocked operations, volatile David Schwartz <davids@webmaster.com> - 2011-07-13 15:24 -0700
    Re: Interlocked operations, volatile Andrew Che <libera.ventis@gmail.com> - 2011-07-14 00:13 -0700
    Re: Interlocked operations, volatile Andrew Che <libera.ventis@gmail.com> - 2011-07-14 00:17 -0700
    Re: Interlocked operations, volatile Andrew Che <libera.ventis@gmail.com> - 2011-07-14 00:37 -0700
    Re: Interlocked operations, volatile Andrew Che <libera.ventis@gmail.com> - 2011-07-14 00:41 -0700
    Re: Interlocked operations, volatile Andrew Che <libera.ventis@gmail.com> - 2011-07-14 00:44 -0700
    Re: Interlocked operations, volatile Andrew Che <libera.ventis@gmail.com> - 2011-07-14 00:31 -0700
    Re: Interlocked operations, volatile Andrew Che <libera.ventis@gmail.com> - 2011-07-14 00:52 -0700
      Re: Interlocked operations, volatile David Schwartz <davids@webmaster.com> - 2011-07-14 03:06 -0700
        Re: Interlocked operations, volatile David Schwartz <davids@webmaster.com> - 2011-07-14 06:16 -0700
          Re: Interlocked operations, volatile Alexander Terekhov <terekhov@web.de> - 2011-07-14 17:20 +0200
            Re: Interlocked operations, volatile David Schwartz <davids@webmaster.com> - 2011-07-14 09:19 -0700
          Re: Interlocked operations, volatile Andrew Che <libera.ventis@gmail.com> - 2011-07-14 08:52 -0700
            Re: Interlocked operations, volatile David Schwartz <davids@webmaster.com> - 2011-07-14 10:51 -0700
              Re: Interlocked operations, volatile Alexander Terekhov <terekhov@web.de> - 2011-07-14 23:05 +0200
          Re: Interlocked operations, volatile Andrew Che <libera.ventis@gmail.com> - 2011-07-14 08:49 -0700
    Re: Interlocked operations, volatile Andrew Che <libera.ventis@gmail.com> - 2011-07-14 00:48 -0700
  Re: Interlocked operations, volatile frege <gottlobfrege@gmail.com> - 2011-07-20 22:13 -0700

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