diff options
Diffstat (limited to 'runtime/atomic.h')
| -rw-r--r-- | runtime/atomic.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/runtime/atomic.h b/runtime/atomic.h index 2dbe7f52..7ad8e2e4 100644 --- a/runtime/atomic.h +++ b/runtime/atomic.h @@ -42,12 +42,14 @@ */ #ifdef HAVE_ATOMIC_BUILTINS # define ATOMIC_INC(data) ((void) __sync_fetch_and_add(&(data), 1)) +# define ATOMIC_DEC(data) ((void) __sync_sub_and_fetch(&(data), 1)) # define ATOMIC_DEC_AND_FETCH(data) __sync_sub_and_fetch(&(data), 1) # define ATOMIC_FETCH_32BIT(data) ((unsigned) __sync_fetch_and_and(&(data), 0xffffffff)) # define ATOMIC_STORE_1_TO_32BIT(data) __sync_lock_test_and_set(&(data), 1) #else # warning "atomic builtins not available, using nul operations" # define ATOMIC_INC(data) (++(data)) +# define ATOMIC_DEC(data) (--(data)) # define ATOMIC_DEC_AND_FETCH(data) (--(data)) # define ATOMIC_FETCH_32BIT(data) (data) # define ATOMIC_STORE_1_TO_32BIT(data) (data) = 1 |