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Merge branch '444-isc_refcount_decrement-uses-invalid-memory-ordering' into 'master'

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Resolve "isc_refcount_decrement() uses invalid memory ordering"

Closes #444

See merge request isc-projects/bind9!560
This commit is contained in:
Ondřej Surý 2018-12-05 14:35:35 -05:00
commit d0ba302028
1 changed files with 3 additions and 3 deletions
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6
lib/isc/include/isc/refcount.h
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@ -53,7 +53,7 @@ typedef atomic_uint_fast32_t isc_refcount_t;
*/
#define isc_refcount_current(target) \
(uint_fast32_t)atomic_load_explicit(target, memory_order_relaxed)
(uint_fast32_t)atomic_load_explicit(target, memory_order_acquire)
/** \def isc_refcount_destroy(ref)
* \brief a destructor that makes sure that all references were cleared.
@ -69,7 +69,7 @@ typedef atomic_uint_fast32_t isc_refcount_t;
* \returns previous value of reference counter.
*/
#define isc_refcount_increment0(target) \
atomic_fetch_add_explicit(target, 1, memory_order_relaxed)
isc_refcount_increment(target)
/** \def isc_refcount_increment(ref)
* \brief increases reference counter by 1.
@ -85,6 +85,6 @@ typedef atomic_uint_fast32_t isc_refcount_t;
* \returns previous value of reference counter.
*/
#define isc_refcount_decrement(target) \
atomic_fetch_sub_explicit(target, 1, memory_order_relaxed)
atomic_fetch_sub_explicit(target, 1, memory_order_release)
ISC_LANG_ENDDECLS