diff options
Diffstat (limited to 'src/core/ngx_atomic.h')
| -rw-r--r-- | src/core/ngx_atomic.h | 32 |
1 files changed, 14 insertions, 18 deletions
diff --git a/src/core/ngx_atomic.h b/src/core/ngx_atomic.h index bbf4a7685..a149ad28b 100644 --- a/src/core/ngx_atomic.h +++ b/src/core/ngx_atomic.h @@ -72,13 +72,19 @@ static ngx_inline uint32_t ngx_atomic_cmp_set(ngx_atomic_t *lock, #define ngx_atomic_inc(p) InterlockedIncrement((long *) p) #define ngx_atomic_dec(p) InterlockedDecrement((long *) p) -/* STUB */ -#define ngx_atomic_cmp_set(lock, old, set) 1 -#if 0 -#define ngx_atomic_cmp_set(lock, old, set) \ - InterlockedCompareExchange(lock, set, old) -#endif +#if defined(__WATCOMC__) || defined(__BORLANDC__) + +#define ngx_atomic_cmp_set(lock, old, set) \ + (InterlockedCompareExchange((long *) lock, set, old) == old) + +#else + +#define ngx_atomic_cmp_set(lock, old, set) \ + (InterlockedCompareExchange((void **) lock, (void *) set, (void *) old) \ + == (void *) old) + +#endif #else @@ -93,18 +99,8 @@ typedef volatile uint32_t ngx_atomic_t; #endif -static ngx_inline ngx_int_t ngx_trylock(ngx_atomic_t *lock) -{ - if (*lock) { - return NGX_BUSY; - } - - if (ngx_atomic_cmp_set(lock, 0, 1)) { - return NGX_OK; - } - - return NGX_BUSY; -} +#define ngx_trylock(lock) (*(lock) == 0 && ngx_atomic_cmp_set(lock, 0, 1)) +#define ngx_unlock(lock) *(lock) = 0 #endif /* _NGX_ATOMIC_H_INCLUDED_ */ |