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[common] time: improve flow with compiler hints

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This commit is contained in:
Geoffrey McRae 2023-11-19 16:31:45 +11:00
parent d3ee5bddde
commit 4911e129f8
1 changed files with 3 additions and 2 deletions
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5
common/include/common/time.h
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@ -23,6 +23,7 @@
#include <stdint.h> #include <stdint.h>
#include <stdbool.h> #include <stdbool.h>
#include <time.h> #include <time.h>
#include "common/util.h"
#if defined(_WIN32) #if defined(_WIN32)
#include <windows.h> #include <windows.h>
@ -40,7 +41,7 @@ static inline uint64_t microtime(void)
{ {
#if defined(_WIN32) #if defined(_WIN32)
static unsigned long div = 0; static unsigned long div = 0;
if (div == 0) if (unlikely(div == 0))
{ {
LARGE_INTEGER freq = { .QuadPart = 0LL }; LARGE_INTEGER freq = { .QuadPart = 0LL };
QueryPerformanceFrequency(&freq); QueryPerformanceFrequency(&freq);
@ -78,7 +79,7 @@ static inline uint64_t nanotime(void)
{ {
#if defined(_WIN32) #if defined(_WIN32)
static double multiplier = 0.0; static double multiplier = 0.0;
if (!multiplier) if (unlikely(!multiplier))
{ {
LARGE_INTEGER freq = { .QuadPart = 0LL }; LARGE_INTEGER freq = { .QuadPart = 0LL };
QueryPerformanceFrequency(&freq); QueryPerformanceFrequency(&freq);