From aaaf9e2e6d81a2f300d724f1daab3d7aa1f798bf Mon Sep 17 00:00:00 2001
From: Howard Chu <hyc@symas.com>
Date: Wed, 6 Apr 2016 03:41:52 +0100
Subject: [PATCH] Fix get_tick_count() on Windows

GetTickCount used in 52056dcfc480a126e06afaf209b1772b6aa77fb3
only has ~10-16ms resolution. Use higher rez timer to get 1ms rez.
---
 contrib/epee/include/misc_os_dependent.h | 12 +++++++-----
 1 file changed, 7 insertions(+), 5 deletions(-)

diff --git a/contrib/epee/include/misc_os_dependent.h b/contrib/epee/include/misc_os_dependent.h
index 2abca044..806d3e83 100644
--- a/contrib/epee/include/misc_os_dependent.h
+++ b/contrib/epee/include/misc_os_dependent.h
@@ -53,11 +53,13 @@ namespace misc_utils
 #if defined(_MSC_VER)
                 return ::GetTickCount64();
 #elif defined(WIN32)
-# if defined(WIN64)
-                return GetTickCount64();
-# else
-                return GetTickCount();
-# endif
+                static LARGE_INTEGER pcfreq = {0};
+                LARGE_INTEGER ticks;
+                if (!pcfreq.QuadPart)
+                    QueryPerformanceFrequency(&pcfreq);
+                QueryPerformanceCounter(&ticks);
+                ticks.QuadPart *= 1000; /* we want msec */
+                return ticks.QuadPart / pcfreq.QuadPart;
 #elif defined(__MACH__)
                 clock_serv_t cclock;
                 mach_timespec_t mts;