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Use correct __atomic builtins for atomic_add

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The atomic_add function should return the old value.
This commit is contained in:
Markus Mäkelä 2017-04-28 16:06:18 +03:00
parent c90c870727
commit ab33f05f7a
1 changed files with 3 additions and 3 deletions
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6
server/core/atomic.cc
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@ -20,7 +20,7 @@
int atomic_add(int *variable, int value)
{
#ifdef MXS_USE_ATOMIC_BUILTINS
return __atomic_add_fetch(variable, value, __ATOMIC_SEQ_CST);
return __atomic_fetch_add(variable, value, __ATOMIC_SEQ_CST);
#else
return __sync_fetch_and_add(variable, value);
#endif
@ -29,7 +29,7 @@ int atomic_add(int *variable, int value)
int64_t atomic_add_int64(int64_t *variable, int64_t value)
{
#ifdef MXS_USE_ATOMIC_BUILTINS
return __atomic_add_fetch(variable, value, __ATOMIC_SEQ_CST);
return __atomic_fetch_add(variable, value, __ATOMIC_SEQ_CST);
#else
return __sync_fetch_and_add(variable, value);
#endif
@ -38,7 +38,7 @@ int64_t atomic_add_int64(int64_t *variable, int64_t value)
uint64_t atomic_add_uint64(uint64_t *variable, int64_t value)
{
#ifdef MXS_USE_ATOMIC_BUILTINS
return __atomic_add_fetch(variable, value, __ATOMIC_SEQ_CST);
return __atomic_fetch_add(variable, value, __ATOMIC_SEQ_CST);
#else
return __sync_fetch_and_add(variable, value);
#endif