diff options
Diffstat (limited to 'include/atomic.h')
| -rw-r--r-- | include/atomic.h | 45 |
1 files changed, 32 insertions, 13 deletions
diff --git a/include/atomic.h b/include/atomic.h index 042290b1..9067e845 100644 --- a/include/atomic.h +++ b/include/atomic.h @@ -59,15 +59,19 @@ inline void *CompExchangePtr(XchgPtr *ptr, void *oldval, void *newval) #define ATOMIC_INIT_STATIC(_newval) {(_newval)} -#define ATOMIC_LOAD_UNSAFE(_val) ((_val)->value) +#define ATOMIC_LOAD_UNSAFE(_val) __extension__({(_val)->value;}) #define ATOMIC_STORE_UNSAFE(_val, _newval) do { \ (_val)->value = (_newval); \ } while(0) -#define ATOMIC_LOAD(_val) (__sync_synchronize(),(_val)->value) +#define ATOMIC_LOAD(_val) __extension__({ \ + __typeof((_val)->value) _r = (_val)->value; \ + __asm__ __volatile__("" ::: "memory"); \ + _r; \ +}) #define ATOMIC_STORE(_val, _newval) do { \ + __asm__ __volatile__("" ::: "memory"); \ (_val)->value = (_newval); \ - __sync_synchronize(); \ } while(0) #define ATOMIC_ADD(T, _val, _incr) __extension__({ \ @@ -142,18 +146,19 @@ inline void *CompExchangePtr(XchgPtr *dest, void *oldval, void *newval) #define ATOMIC_INIT_STATIC(_newval) {(_newval)} -#define ATOMIC_LOAD_UNSAFE(_val) ((_val)->value) +#define ATOMIC_LOAD_UNSAFE(_val) __extension__({(_val)->value;}) #define ATOMIC_STORE_UNSAFE(_val, _newval) do { \ (_val)->value = (_newval); \ } while(0) -inline void _al_mem_barrier(void) -{ __asm__ __volatile__("" ::: "memory"); } - -#define ATOMIC_LOAD(_val) (_al_mem_barrier(),(_val)->value) +#define ATOMIC_LOAD(_val) __extension__({ \ + __typeof((_val)->value) _r = (_val)->value; \ + __asm__ __volatile__("" ::: "memory"); \ + _r; \ +}) #define ATOMIC_STORE(_val, _newval) do { \ + __asm__ __volatile__("" ::: "memory"); \ (_val)->value = (_newval); \ - _al_mem_barrier(); \ } while(0) #define ATOMIC_ADD(T, _val, _incr) __extension__({ \ @@ -266,12 +271,9 @@ inline void *CompExchangePtr(XchgPtr *ptr, void *oldval, void *newval) (_val)->value = (_newval); \ } while(0) -inline void _al_mem_barrier(void) { MemoryBarrier(); } - -#define ATOMIC_LOAD(_val) (_al_mem_barrier(),(_val)->value) +#define ATOMIC_LOAD(_val) ((_val)->value) #define ATOMIC_STORE(_val, _newval) do { \ (_val)->value = (_newval); \ - MemoryBarrier(); \ } while(0) int _al_invalid_atomic_size(); /* not defined */ @@ -293,7 +295,24 @@ int _al_invalid_atomic_size(); /* not defined */ (bool)_al_invalid_atomic_size()) #else + #error "No atomic functions available on this platform!" + +#define ATOMIC(T) T + +#define ATOMIC_INIT_STATIC(_newval) (0) + +#define ATOMIC_LOAD_UNSAFE(_val) (0) +#define ATOMIC_STORE_UNSAFE(_val, _newval) ((void)0) + +#define ATOMIC_LOAD(_val) (0) +#define ATOMIC_STORE(_val, _newval) ((void)0) + +#define ATOMIC_ADD(T, _val, _incr) (0) +#define ATOMIC_SUB(T, _val, _decr) (0) + +#define ATOMIC_EXCHANGE(T, _val, _newval) (0) +#define ATOMIC_COMPARE_EXCHANGE(T, _val, _oldval, _newval) (0) #endif |