Commit fb0730f1f3957b41fa0dd2594fb7d0214b2594da
2019-04-16T23:49:16
util: use 64 bit timer on Windows git__timer was originally implemented using a 32 bit timer since Windows XP did not support GetTickCount64. Windows XP was discontinued five years ago, so it should be safe to use the new API. As a benefit, we do not need to care about overflows for the next 585 million years.
diff --git a/src/util.h b/src/util.h
index b9ab652..6f49653 100644
--- a/src/util.h
+++ b/src/util.h
@@ -361,22 +361,9 @@ GIT_INLINE(void) git__memzero(void *data, size_t size)
GIT_INLINE(double) git__timer(void)
{
- /* We need the initial tick count to detect if the tick
- * count has rolled over. */
- static DWORD initial_tick_count = 0;
-
- /* GetTickCount returns the number of milliseconds that have
+ /* GetTickCount64 returns the number of milliseconds that have
* elapsed since the system was started. */
- DWORD count = GetTickCount();
-
- if(initial_tick_count == 0) {
- initial_tick_count = count;
- } else if (count < initial_tick_count) {
- /* The tick count has rolled over - adjust for it. */
- count = (0xFFFFFFFF - initial_tick_count) + count;
- }
-
- return (double) count / (double) 1000;
+ return (double) GetTickCount64() / (double) 1000;
}
#elif __APPLE__