From: Joe Conway Date: Fri, 5 Jun 2020 20:49:35 +0000 (-0400) Subject: Add unlikely() to CHECK_FOR_INTERRUPTS() X-Git-Tag: REL_10_14~74 X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=c5262cfd59cb0b1f1d2adb2131b9c1c1102be055;p=thirdparty%2Fpostgresql.git Add unlikely() to CHECK_FOR_INTERRUPTS() 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 --- diff --git a/src/include/miscadmin.h b/src/include/miscadmin.h index e76b4b9bb95..7b945bb18a0 100644 --- a/src/include/miscadmin.h +++ b/src/include/miscadmin.h @@ -97,16 +97,16 @@ 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 */