Re: [lwip-users] Custom Memory Pool in lwip

[Dirk Ziegelmeier]

Custom pools is a feature implemented after 1.4.1​. Will be in 2.0.0 release.

​Try to add the following lines from ​

memp.h (in 2.0.0) at the top

​, maybe this will help you​

:

/* run once with empty definition to handle all custom includes in lwippools.h */
#define LWIP_MEMPOOL(name,num,size,desc)
#include "lwip/priv/memp_std.h"

​Don't forget the https://en.wikipedia.org/wiki/Include_guard​ in your private headers.

Ciao
Dirk

--
Dirk Ziegelmeier * address@hidden * http://www.ziegelmeier.net

On Fri, Jul 8, 2016 at 2:24 PM, Sushain Razdan <address@hidden> wrote:

On 7/7/2016 3:00 PM, Sushain Razdan wrote:

Hi,

Thanks for your reply ! Sorry for replying so late

I am currently using lwip version 1.4.1 and this version doesn't have
the Marco LWIP_MEMPOOL_DECLARE as used in httpd.c in the latest
version, Also I found that memory management is quite different. My
understanding of the problem is as follows:

Application i.e. user code declares the custom pools in lwipppools.h.
This header is in-turn included by memp_std.h which has declaration of
standard pools. Now memp_std.h is included multiple times in memp.c so
as to fill up the static memory management variables. Hence I cannot
include private header files in lwippools.h due to multiple header
inclusion. Only workaround which I found was to include my private
headers in memp.c, so that lwip's memory management is aware of what
structures need to be allocated. This would mean changing lwip's core
source for application specific needs.

Can you suggest a better solution keeping the same lwip version ?

Thanks,

Sushain

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