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kamailio/mem/tlsf_malloc.h

105 lines
2.8 KiB

#ifndef INCLUDED_tlsf
#define INCLUDED_tlsf
#if defined(TLSF_MALLOC)
/*
** Two Level Segregated Fit memory allocator, version 3.0.
** Written by Matthew Conte, and placed in the Public Domain.
** http://tlsf.baisoku.org
**
** Based on the original documentation by Miguel Masmano:
** http://rtportal.upv.es/rtmalloc/allocators/tlsf/index.shtml
**
** Please see the accompanying Readme.txt for implementation
** notes and caveats.
**
** This implementation was written to the specification
** of the document, therefore no GPL restrictions apply.
*/
#include <stddef.h>
#include "meminfo.h"
#ifdef DBG_SR_MEMORY
#define DBG_TLSF_MALLOC
#endif
#if defined(__cplusplus)
extern "C" {
#endif
/* tlsf_t: a TLSF structure. Can contain 1 to N pools. */
/* pool_t: a block of memory that TLSF can manage. */
typedef void* tlsf_t;
typedef void* pool_t;
/* Create/destroy a memory pool. */
tlsf_t tlsf_create(void* mem);
tlsf_t tlsf_create_with_pool(void* mem, size_t bytes);
void tlsf_destroy(tlsf_t tlsf);
pool_t tlsf_get_pool(tlsf_t tlsf);
/* Add/remove memory pools. */
pool_t tlsf_add_pool(tlsf_t tlsf, void* mem, size_t bytes);
void tlsf_remove_pool(tlsf_t tlsf, pool_t pool);
/* malloc/memalign/realloc/free replacements. */
#ifdef DBG_TLSF_MALLOC
void* tlsf_malloc(tlsf_t tlsf, size_t size,
const char *file, const char *function, unsigned int line, const char *mname);
void* tlsf_realloc(tlsf_t tlsf, void* ptr, size_t size,
const char *file, const char *function, unsigned int line, const char *mname);
void tlsf_free(tlsf_t tlsf, void* ptr,
const char *file, const char *function, unsigned int line, const char *mname);
#else
void* tlsf_malloc(tlsf_t tlsf, size_t bytes);
void* tlsf_realloc(tlsf_t tlsf, void* ptr, size_t size);
void tlsf_free(tlsf_t tlsf, void* ptr);
#endif
/* Returns internal block size, not original request size */
size_t tlsf_block_size(void* ptr);
/* Overheads/limits of internal structures. */
size_t tlsf_size();
size_t tlsf_align_size();
size_t tlsf_block_size_min();
size_t tlsf_block_size_max();
size_t tlsf_pool_overhead();
size_t tlsf_alloc_overhead();
/* Debugging. */
typedef void (*tlsf_walker)(void* ptr, size_t size, int used, void* user);
void tlsf_walk_pool(pool_t pool, tlsf_walker walker, void* user);
/* Returns nonzero if any internal consistency check fails. */
int tlsf_check(tlsf_t tlsf);
int tlsf_check_pool(pool_t pool);
void tlsf_meminfo(tlsf_t pool, struct mem_info *info);
void tlsf_status(tlsf_t pool);
void tlsf_sums(tlsf_t pool);
unsigned long tlsf_available(tlsf_t pool);
void tlsf_mod_get_stats(tlsf_t pool, void **root);
void tlsf_mod_free_stats(void *root);
typedef struct _mem_counter{
const char *file;
const char *func;
const char *mname;
unsigned long line;
unsigned long size;
int count;
struct _mem_counter *next;
} mem_counter;
#if defined(__cplusplus)
};
#endif
#endif /* TLSF_MALLOC */
#endif