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Add unlikely() to CHECK_FOR_INTERRUPTS()

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Add the unlikely() branch hint macro to CHECK_FOR_INTERRUPTS().
Backpatch to REL_10_STABLE where we first started using unlikely().

Discussion: https://www.postgresql.org/message-id/flat/8692553c-7fe8-17d9-cbc1-7cddb758f4c6%40joeconway.com
This commit is contained in:
Joe Conway 2020-06-05 16:49:25 -04:00
parent 044c99bc56
commit 87fb04af1e
1 changed files with 3 additions and 3 deletions
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6
src/include/miscadmin.h
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@ -98,16 +98,16 @@ extern void ProcessInterrupts(void);
#define CHECK_FOR_INTERRUPTS() \
do { \
if (InterruptPending) \
if (unlikely(InterruptPending)) \
ProcessInterrupts(); \
} while(0)
#else /* WIN32 */
#define CHECK_FOR_INTERRUPTS() \
do { \
if (UNBLOCKED_SIGNAL_QUEUE()) \
if (unlikely(UNBLOCKED_SIGNAL_QUEUE())) \
pgwin32_dispatch_queued_signals(); \
if (InterruptPending) \
if (unlikely(InterruptPending)) \
ProcessInterrupts(); \
} while(0)
#endif /* WIN32 */