本文整理汇总了C++中zmalloc_size函数的典型用法代码示例。如果您正苦于以下问题：C++ zmalloc_size函数的具体用法？C++ zmalloc_size怎么用？C++ zmalloc_size使用的例子？那么恭喜您, 这里精选的函数代码示例或许可以为您提供帮助。
在下文中一共展示了zmalloc_size函数的13个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: zmalloc_size
void *zrealloc(void *ptr, size_t size) {
#ifndef HAVE_MALLOC_SIZE
void *realptr;
#endif
size_t oldsize;
void *newptr;
if (ptr == NULL) return zmalloc(size);
#ifdef HAVE_MALLOC_SIZE
oldsize = zmalloc_size(ptr);
newptr = realloc(ptr,size);
if (!newptr) zmalloc_oom(size);
update_zmalloc_stat_free(oldsize);
update_zmalloc_stat_alloc(zmalloc_size(newptr),size);
return newptr;
#else
realptr = (char*)ptr-PREFIX_SIZE;
oldsize = *((size_t*)realptr);
newptr = realloc(realptr,size+PREFIX_SIZE);
if (!newptr) zmalloc_oom(size);
*((size_t*)newptr) = size;
update_zmalloc_stat_free(oldsize);
update_zmalloc_stat_alloc(size,size);
return (char*)newptr+PREFIX_SIZE;
#endif
}示例2: calloc
void *zcalloc(size_t size) {
void *ptr = calloc(1, size+PREFIX_SIZE);
if (!ptr) zmalloc_oom(size);
#ifdef HAVE_MALLOC_SIZE
update_zmalloc_stat_alloc(zmalloc_size(ptr),size);
return ptr;
#else
*((size_t*)ptr) = size;
update_zmalloc_stat_alloc(size+PREFIX_SIZE,size);
return (char*)ptr+PREFIX_SIZE;
#endif
}示例3: calloc
void *zcalloc(size_t size) {
void *ptr = calloc(1, size+PREFIX_SIZE);
if (!ptr) zmalloc_oom_handler(size);//输出错误
#ifdef HAVE_MALLOC_SIZE
update_zmalloc_stat_alloc(zmalloc_size(ptr));//更新内存使用统计
return ptr;
#else
*((size_t*)ptr) = size;
update_zmalloc_stat_alloc(size+PREFIX_SIZE);//更新内存使用统计
return (char*)ptr+PREFIX_SIZE;
#endif
}示例4: pthread_mutex_init
void *zrealloc(void *ptr, size_t size) {
#ifndef HAVE_MALLOC_SIZE
void *realptr;
#endif
size_t oldsize;
void *newptr;
#ifdef WIN32
if ( mutex_initialized == 0 ) {
pthread_mutex_init(&used_memory_mutex, NULL );
mutex_initialized = 1 ;
}
#endif
if (ptr == NULL) return zmalloc(size);
#ifdef HAVE_MALLOC_SIZE
oldsize = zmalloc_size(ptr);
newptr = realloc(ptr,size);
if (!newptr) zmalloc_oom_handler(size);
update_zmalloc_stat_free(oldsize);
update_zmalloc_stat_alloc(zmalloc_size(newptr),size);
return newptr;
#else
realptr = (char*)ptr-PREFIX_SIZE;
oldsize = *((size_t*)realptr);
newptr = realloc(realptr,size+PREFIX_SIZE);
if (!newptr) zmalloc_oom_handler(size);
*((size_t*)newptr) = size;
update_zmalloc_stat_free(oldsize);
update_zmalloc_stat_alloc(size,size);
return (char*)newptr+PREFIX_SIZE;
#endif
}示例5: zfree
void zfree(void *ptr) {
#ifndef HAVE_MALLOC_SIZE
void *realptr;
size_t oldsize;
#endif
if (ptr == NULL) return;
#ifdef HAVE_MALLOC_SIZE
update_zmalloc_stat_free(zmalloc_size(ptr));
free(ptr);
#else
realptr = (char*)ptr-PREFIX_SIZE;
oldsize = *((size_t*)realptr);
update_zmalloc_stat_free(oldsize+PREFIX_SIZE);
free(realptr);
#endif
}示例6: malloc
void *zmalloc(size_t size)
{
void *ptr = malloc(size+PREFIX_SIZE);
if (!ptr)
{
zmalloc_oom_handler(size);
}
#ifdef HAVE_MALLOC_SIZE
update_zmalloc_stat_alloc(zmalloc_size(ptr));
return ptr;
#else
*((size_t*)ptr) = size;
update_zmalloc_stat_alloc(size+PREFIX_SIZE);
return (char*)ptr+PREFIX_SIZE;
#endif
}示例7: calloc
/* 调用系统函数calloc函数申请空间 */
void *zcalloc(size_t size) {
//calloc与malloc的意思一样，不过参数不一样
//void *calloc(size_t numElements,size_t sizeOfElement),;numElements * sizeOfElement才是最终的内存的大小
//所在这里就是申请一块大小为size+PREFIX_SIZE的空间
void *ptr = calloc(1, size+PREFIX_SIZE);
if (!ptr) zmalloc_oom_handler(size);
#ifdef HAVE_MALLOC_SIZE
update_zmalloc_stat_alloc(zmalloc_size(ptr));
return ptr;
#else
*((size_t*)ptr) = size;
update_zmalloc_stat_alloc(size+PREFIX_SIZE);
return (char*)ptr+PREFIX_SIZE;
#endif
}示例8: malloc
/* 调用zmalloc申请size个大小的空间 */
void *zmalloc(size_t size) {
//实际调用的还是malloc函数
void *ptr = malloc(size+PREFIX_SIZE);
//如果申请的结果为null，说明发生了oom,调用oom的处理方法
if (!ptr) zmalloc_oom_handler(size);
#ifdef HAVE_MALLOC_SIZE
//更新used_memory的大小
update_zmalloc_stat_alloc(zmalloc_size(ptr));
return ptr;
#else
*((size_t*)ptr) = size;
update_zmalloc_stat_alloc(size+PREFIX_SIZE);
return (char*)ptr+PREFIX_SIZE;
#endif
}示例9: calloc
void *zcalloc(size_t size) {
void *ptr = calloc(1, size+PREFIX_SIZE);
#ifdef WIN32
if ( mutex_initialized == 0 ) {
pthread_mutex_init(&used_memory_mutex, NULL );
mutex_initialized = 1 ;
}
#endif
if (!ptr) zmalloc_oom_handler(size);
#ifdef HAVE_MALLOC_SIZE
update_zmalloc_stat_alloc(zmalloc_size(ptr),size);
return ptr;
#else
*((size_t*)ptr) = size;
update_zmalloc_stat_alloc(size+PREFIX_SIZE,size);
return (char*)ptr+PREFIX_SIZE;
#endif
}示例10: zmalloc_size_sds
/* To evaluate the output buffer size of a client we need to get size of
* allocated objects, however we can't used zmalloc_size() directly on sds
* strings because of the trick they use to work (the header is before the
* returned pointer), so we use this helper function. */
size_t zmalloc_size_sds(sds s) {
return zmalloc_size(s-sizeof(struct sdshdr));
}示例11: zmalloc_usable
size_t zmalloc_usable(void *ptr) {
return zmalloc_size(ptr)-PREFIX_SIZE;
}示例12: zfree_no_tcache
void zfree_no_tcache(void *ptr) {
if (ptr == NULL) return;
update_zmalloc_stat_free(zmalloc_size(ptr));
dallocx(ptr, MALLOCX_TCACHE_NONE);
}示例13: mallocx
void *zmalloc_no_tcache(size_t size) {
void *ptr = mallocx(size+PREFIX_SIZE, MALLOCX_TCACHE_NONE);
if (!ptr) zmalloc_oom_handler(size);
update_zmalloc_stat_alloc(zmalloc_size(ptr));
return ptr;
}