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Message-ID:	<3E5E415E.1060607@inf.ethz.ch>
Date:	Thu, 27 Feb 2003 17:48:30 +0100
From:	Fabrice Marchal <fmarchal AT inf DOT ethz DOT ch>
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To:	Randall R Schulz <rrschulz AT cris DOT com>
CC:	cygwin AT cygwin DOT com
Subject:	Re: mem allocation / heap_chunk
References:	<5 DOT 2 DOT 0 DOT 9 DOT 2 DOT 20030227083416 DOT 01dfb1e0 AT pop3 DOT cris DOT com>

Randall R Schulz wrote:

> Fabrice,
>
> It would seem that the answer is right there on the page you 
> referenced. You can script a change to that registry entry via the 
> Cygwin regtool script. You can do this in an install or post-install 
> script or upon each invocation of your application, providing it's 
> invoked via a script.

I can write a script, but then it would require to install cygwin and 
bash (and maybe other things) for the
end-user, while at the moment I just provide the cygwin.dll. I was 
looking for something that uses the
cygwin_XXX API.

Regards,
Fabrice


>
> The man page for regtool includes sufficient detail to enable you to 
> incorporate this sort of functionality in your software.
>
> I recommend that you consider carefully the logic you use to alter the 
> "heap_chunk_in_mb" key so that you don't undermine an existing 
> customization already applied by your end user.
>
> Randall Schulz
>
>
> At 08:18 2003-02-27, Fabrice Marchal wrote:
>
>> Hi,
>> I have come accross the 384 Mb limit for allocating memory in cygwin.
>> (e.g.  char* pnt = new char[ long size = 500*1024*1024 ]; will not 
>> work )
>>
>> I have been able to modify this using the workaround documented in the
>> Users Guide (http://cygwin.com/cygwin-ug-net/setup-maxmem.html)
>>
>> I would like to know if there is a way to do the same within code so 
>> that end-users
>> who receive a cygwin-compiled code do not require to go into the 
>> hassle of
>> using regtool or regedit
>>
>> Is that feasible?
>>
>> Thanks
>> fm
>
>
>
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>


-- 
========================================================================
Fabrice Marchal           http://www.inf.ethz.ch/~fmarchal 
fabrice DOT marchal AT ieee DOT org  fmarchal AT inf DOT ethz DOT ch        +41-(0)1-632-56-79
ETH Zurich, Computational Science and Engineering FAX:+41-(0)1-632-17-03
========================================================================




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