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Re: Semaphores in libc

From: Luciano Rocha <strange at nsk dot no-ip dot org>
To: "Paulo J. Matos" <pocmatos at gmail dot com>
Cc: libc-help at sourceware dot org
Date: Thu, 31 Dec 2009 12:31:43 +0000
Subject: Re: Semaphores in libc
References: <11b141710912310338k673aff61i6c20419af2403788@mail.gmail.com>

On Thu, Dec 31, 2009 at 11:38:12AM +0000, Paulo J. Matos wrote:
> Hi all,
> 
> I am trying to find a solution for the following problem: I have a
> code region in C that should only be accessed by one process at a
> time. I have basically multiple instances of this program running but
> that bit of code, only one of the instances can be running it at that
> point.
> 
> Everywhere I look I seem to find solutions for thread-based software
> etc, which is not this case.
> I thought a mutex should do it but I can't find the bit of the manual
> that actually confirms mutexes are the way to go.

POSIX semaphores, do: man sem_overview.

-- 
lfr
0/0

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References:
- Semaphores in libc
  - From: Paulo J. Matos

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