From ad4cdf88107903138b6d0cf572bf9bd7554762b9 Mon Sep 17 00:00:00 2001
From: Vic Lee <llyzs.vic@gmail.com>
Date: Thu, 11 Jun 2015 15:11:19 +0800
Subject: [PATCH] winpr: add high-precision GetTickCountPrecise for Windows.

---
 winpr/include/winpr/sysinfo.h    |  2 ++
 winpr/libwinpr/sysinfo/sysinfo.c | 15 +++++++++++++++
 2 files changed, 17 insertions(+)

diff --git a/winpr/include/winpr/sysinfo.h b/winpr/include/winpr/sysinfo.h
index 120009a..a72297f 100644
--- a/winpr/include/winpr/sysinfo.h
+++ b/winpr/include/winpr/sysinfo.h
@@ -295,6 +295,8 @@ WINPR_API ULONGLONG GetTickCount64(void);
 
 #endif
 
+WINPR_API DWORD GetTickCountPrecise(void);
+
 WINPR_API BOOL IsProcessorFeaturePresentEx(DWORD ProcessorFeature);
 
 /* extended flags */
diff --git a/winpr/libwinpr/sysinfo/sysinfo.c b/winpr/libwinpr/sysinfo/sysinfo.c
index 1aa7d87..8c7234b 100644
--- a/winpr/libwinpr/sysinfo/sysinfo.c
+++ b/winpr/libwinpr/sysinfo/sysinfo.c
@@ -678,6 +678,21 @@ BOOL IsProcessorFeaturePresent(DWORD ProcessorFeature)
 
 #endif //_WIN32
 
+DWORD GetTickCountPrecise(void)
+{
+#ifdef _WIN32
+	LARGE_INTEGER freq;
+	LARGE_INTEGER current;
+
+	QueryPerformanceFrequency(&freq);
+	QueryPerformanceCounter(&current);
+
+	return (DWORD) (current.QuadPart * 1000LL / freq.QuadPart);
+#else
+	return GetTickCount();
+#endif
+}
+
 BOOL IsProcessorFeaturePresentEx(DWORD ProcessorFeature)
 {
 	BOOL ret = FALSE;
-- 
2.7.4