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added MEMP_MEM_MALLOC to use mem_malloc/mem_free instead of the pool allocator (can save code size with MEM_LIBC_MALLOC if libc-malloc is otherwise used)

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goldsimon 2009-02-11 20:43:41 +00:00
parent 6472e3b35e
commit c4509e700d
4 changed files with 44 additions and 4 deletions
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5
CHANGELOG
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@ -19,6 +19,11 @@ HISTORY
++ New features:
2009-02-11 Simon Goldschmidt (suggested by Gottfried Spitaler)
* opt.h, memp.h/.c: added MEMP_MEM_MALLOC to use mem_malloc/mem_free instead
of the pool allocator (can save code size with MEM_LIBC_MALLOC if libc-malloc
is otherwise used)
2009-01-28 Jonathan Larmour (suggested by Bill Bauerbach)
* ipv4/inet_chksum.c, ipv4/lwip/inet_chksum.h: inet_chksum_pseudo_partial()
is only used by UDPLITE at present, so conditionalise it.

14
src/core/memp.c
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@ -56,6 +56,8 @@
#include <string.h>
#if !MEMP_MEM_MALLOC /* don't build if not configured for use in lwipopts.h */
struct memp {
struct memp *next;
#if MEMP_OVERFLOW_CHECK
@ -109,8 +111,14 @@ struct memp {
* Elements form a linked list. */
static struct memp *memp_tab[MEMP_MAX];
#else /* MEMP_MEM_MALLOC */
#define MEMP_ALIGN_SIZE(x) (LWIP_MEM_ALIGN_SIZE(x))
#endif /* MEMP_MEM_MALLOC */
/** This array holds the element sizes of each pool. */
#if !MEM_USE_POOLS
#if !MEM_USE_POOLS && !MEMP_MEM_MALLOC
static
#endif
const u16_t memp_sizes[MEMP_MAX] = {
@ -118,6 +126,8 @@ const u16_t memp_sizes[MEMP_MAX] = {
#include "lwip/memp_std.h"
};
#if !MEMP_MEM_MALLOC /* don't build if not configured for use in lwipopts.h */
/** This array holds the number of elements in each pool. */
static const u16_t memp_num[MEMP_MAX] = {
#define LWIP_MEMPOOL(name,num,size,desc) (num),
@ -368,3 +378,5 @@ memp_free(memp_t type, void *mem)
SYS_ARCH_UNPROTECT(old_level);
}
#endif /* MEMP_MEM_MALLOC */

18
src/include/lwip/memp.h
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@ -73,10 +73,22 @@ typedef enum {
We use this helper type and these defines so we can avoid using const memp_t values */
#define MEMP_POOL_FIRST ((memp_t) MEMP_POOL_HELPER_FIRST)
#define MEMP_POOL_LAST ((memp_t) MEMP_POOL_HELPER_LAST)
extern const u16_t memp_sizes[MEMP_MAX];
#endif /* MEM_USE_POOLS */
#if MEMP_MEM_MALLOC || MEM_USE_POOLS
extern const u16_t memp_sizes[MEMP_MAX];
#endif /* MEMP_MEM_MALLOC || MEM_USE_POOLS */
#if MEMP_MEM_MALLOC
#include "mem.h"
#define memp_init()
#define memp_malloc(type) mem_malloc(memp_sizes[type])
#define memp_free(type, mem) mem_free(mem)
#else /* MEMP_MEM_MALLOC */
void memp_init(void);
#if MEMP_OVERFLOW_CHECK
@ -87,6 +99,8 @@ void *memp_malloc(memp_t type);
#endif
void memp_free(memp_t type, void *mem);
#endif /* MEMP_MEM_MALLOC */
#ifdef __cplusplus
}
#endif

11
src/include/lwip/opt.h
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@ -98,6 +98,15 @@
#define MEM_LIBC_MALLOC 0
#endif
/**
* MEMP_MEM_MALLOC==1: Use mem_malloc/mem_free instead of the lwip pool allocator.
* Especially useful with MEM_LIBC_MALLOC but handle with care regarding execution
* speed and usage from interrupts!
*/
#ifndef MEMP_MEM_MALLOC
#define MEMP_MEM_MALLOC 0
#endif
/**
* MEM_ALIGNMENT: should be set to the alignment of the CPU
* 4 byte alignment -> #define MEM_ALIGNMENT 4
@ -1120,7 +1129,7 @@
*/
#ifndef RECV_BUFSIZE_DEFAULT
#define RECV_BUFSIZE_DEFAULT INT_MAX
#endif /* RECV_BUFSIZE_DEFAULT */
#endif
/**
* SO_REUSE==1: Enable SO_REUSEADDR and SO_REUSEPORT options. DO NOT USE!