postgres.git / summary / log / commit / refs

commit    7395a90db87bcb2f617d3c486657813122d3f151
Author:   Michael Paquier <michael@paquier.xyz>
Date:     Mon Jul 31 07:14:47 2023 +0000
First released in: 17.0

    Add WAIT_EVENT_{CLASS,ID}_MASK in wait_event.c
    
    These are useful to extract the class ID and the event ID associated to
    a single uint32 wait_event_info.  Only two code paths use them now, but
    an upcoming patch will extend their use.
    
    Discussion: https://postgr.es/m/ZMcJ7F7nkGkIs8zP@paquier.xyz


 src/backend/utils/activity/wait_event.c | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/src/backend/utils/activity/wait_event.c b/src/backend/utils/activity/wait_event.c
index 4aad11c1113..59177de7a04 100644
--- a/src/backend/utils/activity/wait_event.c
+++ b/src/backend/utils/activity/wait_event.c
@@ -39,6 +39,8 @@ static const char *pgstat_get_wait_io(WaitEventIO w);
 static uint32 local_my_wait_event_info;
 uint32	   *my_wait_event_info = &local_my_wait_event_info;
 
+#define WAIT_EVENT_CLASS_MASK	0xFF000000
+#define WAIT_EVENT_ID_MASK		0x0000FFFF
 
 /*
  * Configure wait event reporting to report wait events to *wait_event_info.
@@ -82,7 +84,7 @@ pgstat_get_wait_event_type(uint32 wait_event_info)
 	if (wait_event_info == 0)
 		return NULL;
 
-	classId = wait_event_info & 0xFF000000;
+	classId = wait_event_info & WAIT_EVENT_CLASS_MASK;
 
 	switch (classId)
 	{
@@ -138,8 +140,8 @@ pgstat_get_wait_event(uint32 wait_event_info)
 	if (wait_event_info == 0)
 		return NULL;
 
-	classId = wait_event_info & 0xFF000000;
-	eventId = wait_event_info & 0x0000FFFF;
+	classId = wait_event_info & WAIT_EVENT_CLASS_MASK;
+	eventId = wait_event_info & WAIT_EVENT_ID_MASK;
 
 	switch (classId)
 	{


[parent: f1e9f6bbfa53]