ReactOS 0.4.15-dev-8207-gd73a838
memp.h File Reference
#include "lwip/opt.h"
#include "lwip/memp_std.h"
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Macros

#define LWIP_MEMPOOL(name, num, size, desc)   MEMP_##name,
 

Enumerations

enum  memp_t { MEMP_MAX }
 

Functions

void memp_init (void)
 
voidmemp_malloc (memp_t type)
 
void memp_free (memp_t type, void *mem)
 

Macro Definition Documentation

◆ LWIP_MEMPOOL

#define LWIP_MEMPOOL (   name,
  num,
  size,
  desc 
)    MEMP_##name,

Definition at line 44 of file memp.h.

Enumeration Type Documentation

◆ memp_t

Enumerator
MEMP_MAX 

Definition at line 43 of file memp.h.

43 {
44#define LWIP_MEMPOOL(name,num,size,desc) MEMP_##name,
45#include "lwip/memp_std.h"
47} memp_t;
memp_t
Definition: memp.h:43
@ MEMP_MAX
Definition: memp.h:46

Function Documentation

◆ memp_free()

void memp_free ( memp_t  type,
void mem 
)

Put an element back into its pool.

Parameters
typethe pool where to put mem
memthe memp element to free

Definition at line 435 of file memp.c.

436{
437 struct memp *memp;
438 SYS_ARCH_DECL_PROTECT(old_level);
439
440 if (mem == NULL) {
441 return;
442 }
443 LWIP_ASSERT("memp_free: mem properly aligned",
444 ((mem_ptr_t)mem % MEM_ALIGNMENT) == 0);
445
446 memp = (struct memp *)(void *)((u8_t*)mem - MEMP_SIZE);
447
448 SYS_ARCH_PROTECT(old_level);
449#if MEMP_OVERFLOW_CHECK
450#if MEMP_OVERFLOW_CHECK >= 2
451 memp_overflow_check_all();
452#else
453 memp_overflow_check_element_overflow(memp, type);
454 memp_overflow_check_element_underflow(memp, type);
455#endif /* MEMP_OVERFLOW_CHECK >= 2 */
456#endif /* MEMP_OVERFLOW_CHECK */
457
459
460 memp->next = memp_tab[type];
461 memp_tab[type] = memp;
462
463#if MEMP_SANITY_CHECK
464 LWIP_ASSERT("memp sanity", memp_sanity());
465#endif /* MEMP_SANITY_CHECK */
466
467 SYS_ARCH_UNPROTECT(old_level);
468}
static int used
Definition: adh-main.c:39
#define MEM_ALIGNMENT
Definition: d3d9_helpers.c:15
#define NULL
Definition: types.h:112
#define SYS_ARCH_UNPROTECT(lev)
Definition: cc.h:56
#define SYS_ARCH_PROTECT(lev)
Definition: cc.h:55
#define SYS_ARCH_DECL_PROTECT(lev)
Definition: cc.h:54
ULONG_PTR mem_ptr_t
Definition: cc.h:33
unsigned char u8_t
Definition: cc.h:23
#define LWIP_ASSERT(message, assertion)
Definition: debug.h:66
GLuint GLuint GLsizei GLenum type
Definition: gl.h:1545
#define MEMP_SIZE
Definition: memp.c:110
static struct memp * memp_tab[MEMP_MAX]
Definition: memp.c:117
#define MEMP_STATS_DEC(x, i)
Definition: stats.h:254
Definition: mem.c:156
Definition: memp.c:66
struct memp * next
Definition: memp.c:67

Referenced by pbuf_free(), tcpip_callback_with_block(), tcpip_callbackmsg_delete(), tcpip_input(), and tcpip_thread().

◆ memp_init()

void memp_init ( void  )

Initialize this module.

Carves out memp_memory into linked lists for each pool-type.

Definition at line 338 of file memp.c.

339{
340 struct memp *memp;
341 u16_t i, j;
342
343 for (i = 0; i < MEMP_MAX; ++i) {
348 }
349
350#if !MEMP_SEPARATE_POOLS
351 memp = (struct memp *)LWIP_MEM_ALIGN(memp_memory);
352#endif /* !MEMP_SEPARATE_POOLS */
353 /* for every pool: */
354 for (i = 0; i < MEMP_MAX; ++i) {
355 memp_tab[i] = NULL;
356#if MEMP_SEPARATE_POOLS
357 memp = (struct memp*)memp_bases[i];
358#endif /* MEMP_SEPARATE_POOLS */
359 /* create a linked list of memp elements */
360 for (j = 0; j < memp_num[i]; ++j) {
361 memp->next = memp_tab[i];
362 memp_tab[i] = memp;
363 memp = (struct memp *)(void *)((u8_t *)memp + MEMP_SIZE + memp_sizes[i]
365 + MEMP_SANITY_REGION_AFTER_ALIGNED
366#endif
367 );
368 }
369 }
370#if MEMP_OVERFLOW_CHECK
371 memp_overflow_init();
372 /* check everything a first time to see if it worked */
373 memp_overflow_check_all();
374#endif /* MEMP_OVERFLOW_CHECK */
375}
static int avail
Definition: adh-main.c:39
unsigned short u16_t
Definition: cc.h:24
#define LWIP_MEM_ALIGN(addr)
Definition: mem.h:116
GLsizei GLenum const GLvoid GLsizei GLenum GLbyte GLbyte GLbyte GLdouble GLdouble GLdouble GLfloat GLfloat GLfloat GLint GLint GLint GLshort GLshort GLshort GLubyte GLubyte GLubyte GLuint GLuint GLuint GLushort GLushort GLushort GLbyte GLbyte GLbyte GLbyte GLdouble GLdouble GLdouble GLdouble GLfloat GLfloat GLfloat GLfloat GLint GLint GLint GLint GLshort GLshort GLshort GLshort GLubyte GLubyte GLubyte GLubyte GLuint GLuint GLuint GLuint GLushort GLushort GLushort GLushort GLboolean const GLdouble const GLfloat const GLint const GLshort const GLbyte const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLdouble const GLfloat const GLfloat const GLint const GLint const GLshort const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort GLenum GLenum GLenum GLfloat GLenum GLint GLenum GLenum GLenum GLfloat GLenum GLenum GLint GLenum GLfloat GLenum GLint GLint GLushort GLenum GLenum GLfloat GLenum GLenum GLint GLfloat const GLubyte GLenum GLenum GLenum const GLfloat GLenum GLenum const GLint GLenum GLint GLint GLsizei GLsizei GLint GLenum GLenum const GLvoid GLenum GLenum const GLfloat GLenum GLenum const GLint GLenum GLenum const GLdouble GLenum GLenum const GLfloat GLenum GLenum const GLint GLsizei GLuint GLfloat GLuint GLbitfield GLfloat GLint GLuint GLboolean GLenum GLfloat GLenum GLbitfield GLenum GLfloat GLfloat GLint GLint const GLfloat GLenum GLfloat GLfloat GLint GLint GLfloat GLfloat GLint GLint const GLfloat GLint GLfloat GLfloat GLint GLfloat GLfloat GLint GLfloat GLfloat const GLdouble const GLfloat const GLdouble const GLfloat GLint i
Definition: glfuncs.h:248
GLsizei GLenum const GLvoid GLsizei GLenum GLbyte GLbyte GLbyte GLdouble GLdouble GLdouble GLfloat GLfloat GLfloat GLint GLint GLint GLshort GLshort GLshort GLubyte GLubyte GLubyte GLuint GLuint GLuint GLushort GLushort GLushort GLbyte GLbyte GLbyte GLbyte GLdouble GLdouble GLdouble GLdouble GLfloat GLfloat GLfloat GLfloat GLint GLint GLint GLint GLshort GLshort GLshort GLshort GLubyte GLubyte GLubyte GLubyte GLuint GLuint GLuint GLuint GLushort GLushort GLushort GLushort GLboolean const GLdouble const GLfloat const GLint const GLshort const GLbyte const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLdouble const GLfloat const GLfloat const GLint const GLint const GLshort const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort GLenum GLenum GLenum GLfloat GLenum GLint GLenum GLenum GLenum GLfloat GLenum GLenum GLint GLenum GLfloat GLenum GLint GLint GLushort GLenum GLenum GLfloat GLenum GLenum GLint GLfloat const GLubyte GLenum GLenum GLenum const GLfloat GLenum GLenum const GLint GLenum GLint GLint GLsizei GLsizei GLint GLenum GLenum const GLvoid GLenum GLenum const GLfloat GLenum GLenum const GLint GLenum GLenum const GLdouble GLenum GLenum const GLfloat GLenum GLenum const GLint GLsizei GLuint GLfloat GLuint GLbitfield GLfloat GLint GLuint GLboolean GLenum GLfloat GLenum GLbitfield GLenum GLfloat GLfloat GLint GLint const GLfloat GLenum GLfloat GLfloat GLint GLint GLfloat GLfloat GLint GLint const GLfloat GLint GLfloat GLfloat GLint GLfloat GLfloat GLint GLfloat GLfloat const GLdouble const GLfloat const GLdouble const GLfloat GLint GLint GLint j
Definition: glfuncs.h:250
static const u16_t memp_num[MEMP_MAX]
Definition: memp.c:137
static u8_t memp_memory[MEM_ALIGNMENT - 1 #define LWIP_MEMPOOL(name, num, size, desc)]
Definition: memp.c:173
static const u16_t memp_sizes[MEMP_MAX]
Definition: memp.c:129
#define MEMP_OVERFLOW_CHECK
Definition: opt.h:154
#define err(...)
#define MEMP_STATS_AVAIL(x, i, y)
Definition: stats.h:252
#define max(a, b)
Definition: svc.c:63

Referenced by lwip_init().

◆ memp_malloc()

void * memp_malloc ( memp_t  type)

Get an element from a specific pool.

Parameters
typethe pool to get an element from

the debug version has two more parameters:

Parameters
filefile name calling this function
linenumber of line where this function is called
Returns
a pointer to the allocated memory or a NULL pointer on error

Definition at line 390 of file memp.c.

394{
395 struct memp *memp;
396 SYS_ARCH_DECL_PROTECT(old_level);
397
398 LWIP_ERROR("memp_malloc: type < MEMP_MAX", (type < MEMP_MAX), return NULL;);
399
400 SYS_ARCH_PROTECT(old_level);
401#if MEMP_OVERFLOW_CHECK >= 2
402 memp_overflow_check_all();
403#endif /* MEMP_OVERFLOW_CHECK >= 2 */
404
405 memp = memp_tab[type];
406
407 if (memp != NULL) {
409#if MEMP_OVERFLOW_CHECK
410 memp->next = NULL;
411 memp->file = file;
412 memp->line = line;
413#endif /* MEMP_OVERFLOW_CHECK */
415 LWIP_ASSERT("memp_malloc: memp properly aligned",
416 ((mem_ptr_t)memp % MEM_ALIGNMENT) == 0);
417 memp = (struct memp*)(void *)((u8_t*)memp + MEMP_SIZE);
418 } else {
419 LWIP_DEBUGF(MEMP_DEBUG | LWIP_DBG_LEVEL_SERIOUS, ("memp_malloc: out of memory in pool %s\n", memp_desc[type]));
421 }
422
423 SYS_ARCH_UNPROTECT(old_level);
424
425 return memp;
426}
#define LWIP_DBG_LEVEL_SERIOUS
Definition: debug.h:47
#define LWIP_DEBUGF(debug, message)
Definition: debug.h:95
#define LWIP_ERROR(message, expression, handler)
Definition: debug.h:74
#define MEMP_DEBUG
Definition: lwipopts.h:150
#define MEMP_STATS_INC_USED(x, i)
Definition: stats.h:255
#define MEMP_STATS_INC(x, i)
Definition: stats.h:253
Definition: fci.c:127
Definition: parser.c:49

Referenced by pbuf_alloc(), tcpip_callback_with_block(), tcpip_callbackmsg_new(), and tcpip_input().