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fc_atomic.h add FC_ATOMIC_GET, FC_ATOMIC_INC etc.

storage_pool
YuQing 2021-01-15 18:05:39 +08:00
parent c822e92b19
commit aea8a6562d
1 changed files with 8 additions and 0 deletions
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8
src/fc_atomic.h
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@ -20,6 +20,14 @@
extern "C" { extern "C" {
#endif #endif
#define FC_ATOMIC_GET(var) __sync_add_and_fetch(&var, 0)
#define FC_ATOMIC_INC(var) __sync_add_and_fetch(&var, 1)
#define FC_ATOMIC_DEC(var) __sync_sub_and_fetch(&var, 1)
#define FC_ATOMIC_INC_EX(var, n) __sync_add_and_fetch(&var, n)
#define FC_ATOMIC_DEC_EX(var, n) __sync_sub_and_fetch(&var, n)
#define FC_ATOMIC_CAS(var, old_value, new_value) \ #define FC_ATOMIC_CAS(var, old_value, new_value) \
do { \ do { \
if (__sync_bool_compare_and_swap(&var, old_value, new_value)) { \ if (__sync_bool_compare_and_swap(&var, old_value, new_value)) { \