postgres.git / summary / log / commit / refs

commit    8401ad52350e8a5f0bb71942f2ac7636969bf8f3
Author:   Joe Conway <mail@joeconway.com>
Date:     Fri Jun 05 20:49:28 2020 +0000
First released in: 13.0, 10.14, 11.9, 12.4

    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


 src/include/miscadmin.h | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/src/include/miscadmin.h b/src/include/miscadmin.h
index 61a24c2e3c6..f1e02714217 100644
--- a/src/include/miscadmin.h
+++ b/src/include/miscadmin.h
@@ -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 */


[parent: 022cd0bfd339]