内存调试工具，用于监控程序运行过程中的内存泄漏，内存越界等问题。
此库设计的初衷是为了能够方便的对程序的内存使用情况进行测试, 同时, 在正式发布版本中, 可以关闭相关功能, 减少内存占用以及性能损耗。
相关接口设计为非注册式。
在debug版本中, 打开 __mmem_debug_enbale 宏, 可以开启内存检测功能。
此时, 程序中的所有 malloc 相关函数都被替换为 mmem_debug 中的接口, 以便进行内存检测。
在release版本中, 可以关闭 __mmem_debug_enbale 宏, 可以关闭内存检测功能。
在源文件中引入头文件 mmem_debug.h
#include "mmem_debug.h"添加编译参数 -D__mmem_debug_enbale=1
正常使用 malloc, calloc, realloc, free 等函数��可
当不需要检测时，可以将编译参数 __mmem_debug_enbale 去掉或者设置为 0
注：打开了 __mmem_debug_enbale 宏之后正常使用 malloc 等接口即可.
/**
* @brief mmem_calloc calloc
* @param counts[in] item counts
* @param item_size[in] item size
* @param file[in] file name
* @param line[in] line number
* @return (void *) address
*/
extern void *mmem_calloc(unsigned long counts, unsigned long item_size, const char *file, int line);
/**
* @brief mmem_alloc malloc
* @param size[in] size to malloc
* @param file[in] file name
* @param line[in] line number
* @return (void *) address
*/
extern void *mmem_alloc(unsigned long size, const char *file, int line);
/**
* @brief mmem_free free
* @param addr[in] address to free
* @param file[in] file name
* @param line[in] line number
* @return void
*/
extern void mmem_free(void *addr, const char *file, int line);
/**
* @brief mmem_realloc realloc
* @param addr[in] address to realloc, if NULL, it will be malloc
* @param size[in] size to realloc, if 0, it will be free
* @param file[in] file name
* @param line[in] line number
* @return (void *)
*/
extern void *mmem_realloc(void *addr, unsigned long size, const char *file, int line);
/**
* @brief mmem_free_all free all memory
* @return void
*/
extern void mmem_free_all(void);// dump command
#define MMEM_DUMP_CMD_COUNTS (0x01)
#define MMEM_DUMP_CMD_MMEM_INFO (0x02)
#define MMEM_DUMP_CMD_MMEM_BLOCK_INFO (0x03)
/**
* @brief mmem_dump dump memory info
* @param cmd[in] command, see MMEM_DUMP_CMD_XXX
* @param counts[in] counts of data
* @param buf[out] buffer to store data
* @param buf_size[in] buffer size
* @return (long) >=0: success, <0: fail
*/
extern long mmem_dump(unsigned long cmd, unsigned long counts, void *buf, unsigned long buf_size);
...
// example
long ret = 0;
unsigned long counts = 0;
ret = mmem_dump(MMEM_DUMP_CMD_COUNTS, 0, (void *)&counts, sizeof(unsigned long));
if (ret == MMEM_DUMP_RET_OK) {
printf("counts: %lu\n", counts);
}
mmem_info_t mmem_info = {0};
ret = mmem_dump(MMEM_DUMP_CMD_MMEM_INFO, 0, (void *)&mmem_info, sizeof(mmem_info_t));
mmem_block_info_t mmem_block_info[10] = {0};
ret = mmem_dump(MMEM_DUMP_CMD_MMEM_BLOCK_INFO, 10, (void *)mmem_block_info, sizeof(mmem_block_info_t) * 10);
if (ret > 0) {
// dump success, ret is the counts of data
}
...- 调整库整体接口, 支持封装层, 方便移植
- 临界区(锁)
- 打印接口
- 统一模块内用到的打印接口, 方便对接日志模块
- 支持内存越界检测接口