fluencelabs/redis
1
0
Fork 0
mirror of https://github.com/fluencelabs/redis synced 2025-03-18 08:30:51 +00:00
Code Issues Projects Releases Wiki Activity

zmalloc.c converted to use atomicvar.h.

Browse Source
This commit is contained in:
antirez 2015-09-25 15:34:16 +02:00
parent 7e5d69019e
commit c7b46a4719
1 changed files with 5 additions and 33 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

38
src/zmalloc.c
View File

@ -43,6 +43,7 @@ void zlibc_free(void *ptr) {
#include <pthread.h>
#include "config.h"
#include "zmalloc.h"
#include "atomicvar.h"
#ifdef HAVE_MALLOC_SIZE
#define PREFIX_SIZE (0)
@ -67,32 +68,11 @@ void zlibc_free(void *ptr) {
#define free(ptr) je_free(ptr)
#endif
#if defined(__ATOMIC_RELAXED)
#define update_zmalloc_stat_add(__n) __atomic_add_fetch(&used_memory, (__n), __ATOMIC_RELAXED)
#define update_zmalloc_stat_sub(__n) __atomic_sub_fetch(&used_memory, (__n), __ATOMIC_RELAXED)
#elif defined(HAVE_ATOMIC)
#define update_zmalloc_stat_add(__n) __sync_add_and_fetch(&used_memory, (__n))
#define update_zmalloc_stat_sub(__n) __sync_sub_and_fetch(&used_memory, (__n))
#else
#define update_zmalloc_stat_add(__n) do { \
pthread_mutex_lock(&used_memory_mutex); \
used_memory += (__n); \
pthread_mutex_unlock(&used_memory_mutex); \
} while(0)
#define update_zmalloc_stat_sub(__n) do { \
pthread_mutex_lock(&used_memory_mutex); \
used_memory -= (__n); \
pthread_mutex_unlock(&used_memory_mutex); \
} while(0)
#endif
#define update_zmalloc_stat_alloc(__n) do { \
size_t _n = (__n); \
if (_n&(sizeof(long)-1)) _n += sizeof(long)-(_n&(sizeof(long)-1)); \
if (zmalloc_thread_safe) { \
update_zmalloc_stat_add(_n); \
atomicIncr(used_memory,__n,&used_memory_mutex); \
} else { \
used_memory += _n; \
} \
@ -102,7 +82,7 @@ void zlibc_free(void *ptr) {
size_t _n = (__n); \
if (_n&(sizeof(long)-1)) _n += sizeof(long)-(_n&(sizeof(long)-1)); \
if (zmalloc_thread_safe) { \
update_zmalloc_stat_sub(_n); \
atomicDecr(used_memory,__n,&used_memory_mutex); \
} else { \
used_memory -= _n; \
} \
@ -222,18 +202,10 @@ size_t zmalloc_used_memory(void) {
size_t um;
if (zmalloc_thread_safe) {
#if defined(__ATOMIC_RELAXED) || defined(HAVE_ATOMIC)
um = update_zmalloc_stat_add(0);
#else
pthread_mutex_lock(&used_memory_mutex);
um = used_memory;
pthread_mutex_unlock(&used_memory_mutex);
#endif
}
else {
atomicGet(used_memory,um,&used_memory_mutex);
} else {
um = used_memory;
}
return um;
}