diff options
Diffstat (limited to 'include/grpc/impl/codegen/atm_gcc_atomic.h')
| -rw-r--r-- | include/grpc/impl/codegen/atm_gcc_atomic.h | 35 |
1 files changed, 26 insertions, 9 deletions
diff --git a/include/grpc/impl/codegen/atm_gcc_atomic.h b/include/grpc/impl/codegen/atm_gcc_atomic.h index 7d4ae98cf7..4bd3b25741 100644 --- a/include/grpc/impl/codegen/atm_gcc_atomic.h +++ b/include/grpc/impl/codegen/atm_gcc_atomic.h @@ -40,6 +40,20 @@ typedef intptr_t gpr_atm; +#ifdef GPR_LOW_LEVEL_COUNTERS +extern gpr_atm gpr_counter_atm_cas; +extern gpr_atm gpr_counter_atm_add; +#define GPR_ATM_INC_COUNTER(counter) \ + __atomic_fetch_add(&counter, 1, __ATOMIC_RELAXED) +#define GPR_ATM_INC_CAS_THEN(blah) \ + (GPR_ATM_INC_COUNTER(gpr_counter_atm_cas), blah) +#define GPR_ATM_INC_ADD_THEN(blah) \ + (GPR_ATM_INC_COUNTER(gpr_counter_atm_add), blah) +#else +#define GPR_ATM_INC_CAS_THEN(blah) blah +#define GPR_ATM_INC_ADD_THEN(blah) blah +#endif + #define gpr_atm_full_barrier() (__atomic_thread_fence(__ATOMIC_SEQ_CST)) #define gpr_atm_acq_load(p) (__atomic_load_n((p), __ATOMIC_ACQUIRE)) @@ -50,25 +64,28 @@ typedef intptr_t gpr_atm; (__atomic_store_n((p), (intptr_t)(value), __ATOMIC_RELAXED)) #define gpr_atm_no_barrier_fetch_add(p, delta) \ - (__atomic_fetch_add((p), (intptr_t)(delta), __ATOMIC_RELAXED)) + GPR_ATM_INC_ADD_THEN( \ + __atomic_fetch_add((p), (intptr_t)(delta), __ATOMIC_RELAXED)) #define gpr_atm_full_fetch_add(p, delta) \ - (__atomic_fetch_add((p), (intptr_t)(delta), __ATOMIC_ACQ_REL)) + GPR_ATM_INC_ADD_THEN( \ + __atomic_fetch_add((p), (intptr_t)(delta), __ATOMIC_ACQ_REL)) static __inline int gpr_atm_no_barrier_cas(gpr_atm *p, gpr_atm o, gpr_atm n) { - return __atomic_compare_exchange_n(p, &o, n, 0, __ATOMIC_RELAXED, - __ATOMIC_RELAXED); + return GPR_ATM_INC_CAS_THEN(__atomic_compare_exchange_n( + p, &o, n, 0, __ATOMIC_RELAXED, __ATOMIC_RELAXED)); } static __inline int gpr_atm_acq_cas(gpr_atm *p, gpr_atm o, gpr_atm n) { - return __atomic_compare_exchange_n(p, &o, n, 0, __ATOMIC_ACQUIRE, - __ATOMIC_RELAXED); + return GPR_ATM_INC_CAS_THEN(__atomic_compare_exchange_n( + p, &o, n, 0, __ATOMIC_ACQUIRE, __ATOMIC_RELAXED)); } static __inline int gpr_atm_rel_cas(gpr_atm *p, gpr_atm o, gpr_atm n) { - return __atomic_compare_exchange_n(p, &o, n, 0, __ATOMIC_RELEASE, - __ATOMIC_RELAXED); + return GPR_ATM_INC_CAS_THEN(__atomic_compare_exchange_n( + p, &o, n, 0, __ATOMIC_RELEASE, __ATOMIC_RELAXED)); } -#define gpr_atm_full_xchg(p, n) __atomic_exchange_n((p), (n), __ATOMIC_ACQ_REL) +#define gpr_atm_full_xchg(p, n) \ + GPR_ATM_INC_CAS_THEN(__atomic_exchange_n((p), (n), __ATOMIC_ACQ_REL)) #endif /* GRPC_IMPL_CODEGEN_ATM_GCC_ATOMIC_H */ |