mir/bind
2
0
Fork 0
mirror of https://gitlab.isc.org/isc-projects/bind9 synced 2025-09-01 23:25:38 +00:00
Code Issues Releases Wiki Activity

Avoid an extra atomic_load() call

Browse Source
This commit is contained in:
Ondřej Surý
2019-11-06 10:49:28 +01:00
parent 3361247519
commit b4df5a6ecb
1 changed files with 2 additions and 5 deletions
Download Patch File Download Diff File Expand all files Collapse all files

7
lib/isc/stats.c
View File

@@ -157,15 +157,12 @@ void isc_stats_update_if_greater(isc_stats_t *stats,
REQUIRE(ISC_STATS_VALID(stats)); REQUIRE(ISC_STATS_VALID(stats));
REQUIRE(counter < stats->ncounters); REQUIRE(counter < stats->ncounters);
isc_statscounter_t curr_value; isc_statscounter_t curr_value =
atomic_load_relaxed(&stats->counters[counter]);
do { do {
curr_value = atomic_load_explicit(&stats->counters[counter],
memory_order_relaxed);
if (curr_value >= value) { if (curr_value >= value) {
break; break;
} }
} while (!atomic_compare_exchange_strong(&stats->counters[counter], } while (!atomic_compare_exchange_strong(&stats->counters[counter],
&curr_value, &curr_value,
value)); value));