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Subject: Re: apache shared memory
From: Manjula Peiris <manjula@wso2.com>
To: Michael.Sutter@ipe.fzk.de
Cc: Apache AXIS C User List <axis-c-user@ws.apache.org>
In-Reply-To: <49363E3E.9010005@ipe.fzk.de>
References: <493513BF.5050203@ipe.fzk.de> <1228239977.6758.5.camel@manjula>
	 <49363E3E.9010005@ipe.fzk.de>
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Date: Wed, 03 Dec 2008 17:16:56 +0530
Message-Id: <1228304816.8733.2.camel@manjula>
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In your code are you switching to global pool before accessing the
shared variable?
Honestly speaking I have no time to look at your code.

Thanks
-Manjula.

On Wed, 2008-12-03 at 09:07 +0100, Michael Sutter wrote:
> Hello,
> 
> I already have enabled the Axis2GlobalPoolSize parameter and I have
> implemented
> the service. The problem is, that the service works only every third
> call and I think this
> is a very strange behavior and I don't see what I have done wrong.
> Maybe I have a small
> error, but why it works with the simple server?
> 
> Kind regards
> Michael
> 
> Manjula Peiris wrote: 
> > You can enable Shared memory for mod_axis2 by adding Axis2GlobalPoolSize
> > parameter in the httpd.conf. And when accessing that shared variable you
> > need to switch to global pool. Please see axutil_allocator.h for
> > details.
> > 
> > 
> > On Tue, 2008-12-02 at 11:53 +0100, Michael Sutter wrote:
> >   
> > > Hello list,
> > > 
> > > I have a strange behavior and hopefully someone can help me. I have
> > > implemented a simple service and I want
> > > to access the shared memory of the apache daemon. The service stores a
> > > object, which can perform some basic
> > > mathematical operations and store a value.
> > > 
> > > In the first call of the service the shared variable is initialized and
> > > stored with a value in the shared
> > > memory. Every following call should get the shared variable, add two
> > > numbers and store it in the shared variable
> > > (setLaenge(int a) in myadd.cpp). The result should look like this: first
> > > call 10, second call 19, third call 28 and so on,
> > > increasing with nine for every following call.
> > > 
> > > The problem know is that I only get the correct value from the service
> > > every third call, but then the right value. For the
> > > other calls I always got the same, invalid value. It looks like first
> > > call 10, second call -1211088511, third call -1211088511,
> > > fourth call 19 and so on. I tested it on two servers with an older and
> > > newer apache, having the same behavior, but other
> > > incorrect values. If I test the service with the axis simple server
> > > everything works fine, but I don't know if I can test the
> > > shared memory with the simple server?
> > > 
> > > My question now is: Does anybody knew this behavior? Maybe I have
> > > implemented something wrong and attached
> > > the service. It would be very nice, if someone can have a look inside my
> > > code.
> > > 
> > > Kind regards
> > > Michael
> > > ---------------------------------------------------------------------
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> > > For additional commands, e-mail: axis-c-user-help@ws.apache.org
> > >     
> > 
> >   


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