From 3ed50650be12bb4da1baab3936e5e4f6346ef5b3 Mon Sep 17 00:00:00 2001 From: Andres Freund Date: Mon, 16 Jan 2023 11:06:36 -0800 Subject: [PATCH v7 3/4] instr_time: Add INSTR_TIME_SET_SECOND() Useful to calculate the end of a time-bound loop without having to convert into time units (which is costly). Author: Reviewed-by: Discussion: https://postgr.es/m/ Backpatch: --- src/include/portability/instr_time.h | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index 185be8d5cad..91492c62a39 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -22,6 +22,8 @@ * INSTR_TIME_SET_CURRENT_LAZY(t) set t to current time if t is zero, * evaluates to whether t changed * + * INSTR_TIME_SET_SECOND(t, s) set t to s seconds + * * INSTR_TIME_ADD(x, y) x += y * * INSTR_TIME_SUBTRACT(x, y) x -= y @@ -114,6 +116,9 @@ pg_clock_gettime_ns(void) #define INSTR_TIME_SET_CURRENT(t) \ ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_SET_SECONDS(t, s) \ + ((t) = NS_PER_S * (s)) + #define INSTR_TIME_GET_NANOSEC(t) \ ((uint64) (t)) @@ -146,6 +151,9 @@ GetTimerFrequency(void) #define INSTR_TIME_SET_CURRENT(t) \ ((t) = pg_query_performance_counter()) +#define INSTR_TIME_SET_SECONDS(t, s) \ + ((t) = s * GetTimerFrequency()) + #define INSTR_TIME_GET_NANOSEC(t) \ ((uint64) (((t) * NS_PER_S) / GetTimerFrequency())) -- 2.38.0