Log: More precise timing

Author: ge0rdi

Src/StartMenu/StartMenuDLL/LogManager.cpp

@@ -9,10 +9,11 @@
 #include "ResourceHelper.h"
 #include "ComHelper.h"
 #include <propvarutil.h>
+#include <chrono>
 
 int g_LogCategories;
 static FILE *g_LogFile;
-static int g_LogTime;
+static std::chrono::time_point<std::chrono::steady_clock> g_LogTime;
 
 void InitLog( int categories, const wchar_t *fname )
 {
@@ -23,7 +24,7 @@ void InitLog( int categories, const wchar_t *fname )
 		wchar_t bom=0xFEFF;
 		fwrite(&bom,2,1,g_LogFile);
 		g_LogCategories=categories;
-		g_LogTime=GetTickCount();
+		g_LogTime=std::chrono::steady_clock::now();
 		LogMessage(L"version=%x, PID=%d, TID=%d, Categories=%08x\r\n",GetWinVersion(),GetCurrentProcessId(),GetCurrentThreadId(),categories);
 	}
 }
@@ -40,7 +41,7 @@ void LogMessage( const wchar_t *text, ... )
 	if (!g_LogFile) return;
 
 	wchar_t buf[2048];
-	int len=Sprintf(buf,_countof(buf),L"%8d: ",GetTickCount()-g_LogTime);
+	int len=Sprintf(buf,_countof(buf),L"%8d: ",std::chrono::duration_cast<std::chrono::milliseconds>(std::chrono::steady_clock::now()-g_LogTime).count());
 	fwrite(buf,2,len,g_LogFile);
 
 	va_list args;