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Re: Question on volatile functions and GCC

From: Jonathan Wakely <jwakely dot gcc at gmail dot com>
To: David Paterson <dnpaterson at gmail dot com>
Cc: noloader at gmail dot com, gcc-help at gcc dot gnu dot org
Date: Tue, 5 Mar 2013 09:40:08 +0000
Subject: Re: Question on volatile functions and GCC
References: <CAH8yC8=iFF-74qkAoTyEVSWnTKaKcZAtGfj+eRHQj1WMa0A4zg@mail.gmail.com> <CAM1kHc2Xuwnpjg1pAL7jBRHhpsrSeqYAjyDVC6UWpXub1YLHeQ@mail.gmail.com>

On 5 March 2013 09:27, David Paterson wrote:
>
> In addition to Jonathan's answer on the use of "volatile", it's worth adding
> that it's not only used for memory mapped hardware. There are many other
> uses, such as inter-thread communication, or indeed the example you
> show below.

Only in broken code.

volatile is not for multithreading, you need proper synchronization
for interthread communication.

Follow-Ups:
- Re: Question on volatile functions and GCC
  - From: David Paterson
- Re: Question on volatile functions and GCC
  - From: Tobias Burnus

References:
- Question on volatile functions and GCC
  - From: Jeffrey Walton
- Re: Question on volatile functions and GCC
  - From: David Paterson

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