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test: fix now_realtime() for Windows.

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This commit is contained in:
Leo Yuriev 2017-04-25 16:09:02 +03:00
parent 925064aa11
commit 99abf56c6c
1 changed files with 12 additions and 3 deletions
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15
test/chrono.cc
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@ -73,11 +73,20 @@ time from_ms(uint64_t ms) {
time now_realtime() { time now_realtime() {
#if defined(_WIN32) || defined(_WIN64) || defined(_WINDOWS) #if defined(_WIN32) || defined(_WIN64) || defined(_WINDOWS)
static void(WINAPI * query_time)(LPFILETIME);
if (!query_time) {
query_time = (void(WINAPI *)(LPFILETIME))GetProcAddress(
GetModuleHandle(TEXT("kernel32.dll")),
"GetSystemTimePreciseAsFileTime");
if (!query_time)
query_time = GetSystemTimeAsFileTime;
}
FILETIME filetime; FILETIME filetime;
GetSystemTimeAsFileTime(&filetime); query_time(&filetime);
uint64_t ns = uint64_t ns100 =
(uint64_t)filetime.dwHighDateTime << 32 | filetime.dwLowDateTime; (uint64_t)filetime.dwHighDateTime << 32 | filetime.dwLowDateTime;
return from_ns(ns); return from_ns((ns100 - UINT64_C(116444736000000000)) * 100u);
#else #else
struct timespec ts; struct timespec ts;
if (unlikely(clock_gettime(CLOCK_REALTIME, &ts))) if (unlikely(clock_gettime(CLOCK_REALTIME, &ts)))