RepoMirrors/haproxy
1
0
Fork 0
mirror of http://git.haproxy.org/git/haproxy.git/ synced 2025-04-21 06:25:43 +00:00
Code Issues Packages Projects Releases Wiki Activity

CLEANUP: atomics: also replace __sync_synchronize() with __atomic_thread_fence()

Browse Source 
The drop of older compilers also allows us to focus on clearer
barriers, so let's use them.
This commit is contained in:
Willy Tarreau 2025-04-03 11:59:31 +02:00
parent 34e3b83f9c
commit f435a2e518
1 changed files with 7 additions and 6 deletions

13
include/haproxy/atomic.h
View File

@ -685,12 +685,13 @@ static __inline int __ha_cas_dw(void *target, void *compare, void *set)
#else /* unknown / unhandled architecture, fall back to generic barriers */
#define __ha_barrier_atomic_load __sync_synchronize
#define __ha_barrier_atomic_store __sync_synchronize
#define __ha_barrier_atomic_full __sync_synchronize
#define __ha_barrier_load __sync_synchronize
#define __ha_barrier_store __sync_synchronize
#define __ha_barrier_full __sync_synchronize
#define __ha_barrier_atomic_load __atomic_thread_fence(__ATOMIC_ACQUIRE)
#define __ha_barrier_atomic_store __atomic_thread_fence(__ATOMIC_RELEASE)
#define __ha_barrier_atomic_full __atomic_thread_fence(__ATOMIC_SEQ_CST)
#define __ha_barrier_load __atomic_thread_fence(__ATOMIC_ACQUIRE)
#define __ha_barrier_store __atomic_thread_fence(__ATOMIC_RELEASE)
#define __ha_barrier_full __atomic_thread_fence(__ATOMIC_SEQ_CST)
/* Note: there is no generic DWCAS */
/* short-lived CPU relaxation */