Path: csiph.com!x330-a1.tempe.blueboxinc.net!usenet.pasdenom.info!aioe.org!news.stack.nl!newsfeed.xs4all.nl!newsfeed5.news.xs4all.nl!xs4all!newsgate.cistron.nl!newsgate.news.xs4all.nl!post.news.xs4all.nl!not-for-mail
Return-Path: <tim.wintle@teamrubber.com>
X-Original-To: python-list@python.org
Delivered-To: python-list@mail.python.org
X-Spam-Status: OK 0.015
X-Spam-Evidence: '*H*': 0.98; '*S*': 0.01; 'brad': 0.07; 'x-mailer:evolution 2.28.3': 0.07; 'instance.': 0.09; 'module)': 0.09; 'unsigned': 0.09; 'void': 0.15; '107': 0.16; 'subject:function': 0.16; 'threading': 0.16; 'cc:addr:python- list': 0.16; 'wrote:': 0.18; 'cc:no real name:2**0': 0.20; 'header :In-Reply-To:1': 0.22; 'cc:2**0': 0.24; '(see': 0.28; 'skip:b 20': 0.29; 'cc:addr:python.org': 0.29; 'fri,': 0.34; 'header:Reply- To:1': 0.71; 'reply-to:no real name:2**0': 0.72; 'received:bethere.co.uk': 0.84; '111': 0.91; 'subject:Make': 0.96
Subject: Re: Make a small function thread safe
From: Tim Wintle <tim.wintle@teamrubber.com>
To: Brad Tilley <kj4eit@gmail.com>
In-Reply-To: <10d3d04f-1708-4942-8e69-92b715f01ff8@p20g2000vbm.googlegroups.com>
References: <10d3d04f-1708-4942-8e69-92b715f01ff8@p20g2000vbm.googlegroups.com>
Content-Type: text/plain; charset="UTF-8"
Organization: Team Rubber
Date: Fri, 16 Dec 2011 13:33:14 +0000
Mime-Version: 1.0
X-Mailer: Evolution 2.28.3
Content-Transfer-Encoding: 7bit
X-SA-Exim-Connect-IP: 87.194.110.230
X-SA-Exim-Mail-From: tim.wintle@teamrubber.com
X-SA-Exim-Scanned: No (on mail.netsight.co.uk); SAEximRunCond expanded to false
Cc: python-list@python.org
X-BeenThere: python-list@python.org
X-Mailman-Version: 2.1.12
Precedence: list
Reply-To: tim.wintle@teamrubber.com
List-Id: General discussion list for the Python programming language <python-list.python.org>
List-Unsubscribe: <http://mail.python.org/mailman/options/python-list>, <mailto:python-list-request@python.org?subject=unsubscribe>
List-Archive: <http://mail.python.org/pipermail/python-list>
List-Post: <mailto:python-list@python.org>
List-Help: <mailto:python-list-request@python.org?subject=help>
List-Subscribe: <http://mail.python.org/mailman/listinfo/python-list>, <mailto:python-list-request@python.org?subject=subscribe>
Newsgroups: comp.lang.python
Message-ID: <mailman.3726.1324044351.27778.python-list@python.org>
Lines: 18
NNTP-Posting-Host: 2001:888:2000:d::a6
X-Trace: 1324044351 news.xs4all.nl 6980 [2001:888:2000:d::a6]:60634
X-Complaints-To: abuse@xs4all.nl
Xref: x330-a1.tempe.blueboxinc.net comp.lang.python:17354

On Fri, 2011-12-16 at 05:21 -0800, Brad Tilley wrote:
> 107         void increment_counter( unsigned int& counter )
> 108         {
> 109                 boost::mutex::scoped_lock lock( counter_lock );
> 110                 ++counter;
> 111         }


with counter_lock:
    counter += 1


... where counter_lock is a threading.Lock instance.

(see docs for the threading module)

Tim