1 files changed, 82 insertions, 0 deletions

diff --git a/src/libs/dutil/WixToolset.DUtil/perfutil.cpp b/src/libs/dutil/WixToolset.DUtil/perfutil.cpp
new file mode 100644
index 00000000..bc138d34
--- /dev/null
+++ b/src/libs/dutil/WixToolset.DUtil/perfutil.cpp
@@ -0,0 +1,82 @@
+// Copyright (c) .NET Foundation and contributors. All rights reserved. Licensed under the Microsoft Reciprocal License. See LICENSE.TXT file in the project root for full license information.
+
+#include "precomp.h"
+
+
+// Exit macros
+#define PerfExitOnLastError(x, s, ...) ExitOnLastErrorSource(DUTIL_SOURCE_PERFUTIL, x, s, __VA_ARGS__)
+#define PerfExitOnLastErrorDebugTrace(x, s, ...) ExitOnLastErrorDebugTraceSource(DUTIL_SOURCE_PERFUTIL, x, s, __VA_ARGS__)
+#define PerfExitWithLastError(x, s, ...) ExitWithLastErrorSource(DUTIL_SOURCE_PERFUTIL, x, s, __VA_ARGS__)
+#define PerfExitOnFailure(x, s, ...) ExitOnFailureSource(DUTIL_SOURCE_PERFUTIL, x, s, __VA_ARGS__)
+#define PerfExitOnRootFailure(x, s, ...) ExitOnRootFailureSource(DUTIL_SOURCE_PERFUTIL, x, s, __VA_ARGS__)
+#define PerfExitOnFailureDebugTrace(x, s, ...) ExitOnFailureDebugTraceSource(DUTIL_SOURCE_PERFUTIL, x, s, __VA_ARGS__)
+#define PerfExitOnNull(p, x, e, s, ...) ExitOnNullSource(DUTIL_SOURCE_PERFUTIL, p, x, e, s, __VA_ARGS__)
+#define PerfExitOnNullWithLastError(p, x, s, ...) ExitOnNullWithLastErrorSource(DUTIL_SOURCE_PERFUTIL, p, x, s, __VA_ARGS__)
+#define PerfExitOnNullDebugTrace(p, x, e, s, ...)  ExitOnNullDebugTraceSource(DUTIL_SOURCE_PERFUTIL, p, x, e, s, __VA_ARGS__)
+#define PerfExitOnInvalidHandleWithLastError(p, x, s, ...) ExitOnInvalidHandleWithLastErrorSource(DUTIL_SOURCE_PERFUTIL, p, x, s, __VA_ARGS__)
+#define PerfExitOnWin32Error(e, x, s, ...) ExitOnWin32ErrorSource(DUTIL_SOURCE_PERFUTIL, e, x, s, __VA_ARGS__)
+#define PerfExitOnGdipFailure(g, x, s, ...) ExitOnGdipFailureSource(DUTIL_SOURCE_PERFUTIL, g, x, s, __VA_ARGS__)
+
+static BOOL vfHighPerformanceCounter = TRUE;   // assume the system has a high performance counter
+static double vdFrequency = 1;
+
+
+/********************************************************************
+ PerfInitialize - initializes internal static variables
+
+********************************************************************/
+extern "C" void DAPI PerfInitialize(
+    )
+{
+    LARGE_INTEGER liFrequency = { };
+
+    //
+    // check for high perf counter
+    //
+    if (!::QueryPerformanceFrequency(&liFrequency))
+    {
+        vfHighPerformanceCounter = FALSE;
+        vdFrequency = 1000;  // ticks are measured in milliseconds
+    }
+    else
+        vdFrequency = static_cast<double>(liFrequency.QuadPart);
+}
+
+
+/********************************************************************
+ PerfClickTime - resets the clicker, or returns elapsed time since last call
+
+ NOTE: if pliElapsed is NULL, resets the elapsed time
+       if pliElapsed is not NULL, returns perf number since last call to PerfClickTime()
+********************************************************************/
+extern "C" void DAPI PerfClickTime(
+    __out_opt LARGE_INTEGER* pliElapsed
+    )
+{
+    static LARGE_INTEGER liStart = { };
+    LARGE_INTEGER* pli = pliElapsed;
+
+    if (!pli)  // if elapsed time time was not requested, reset the start time
+        pli = &liStart;
+
+    if (vfHighPerformanceCounter)
+        ::QueryPerformanceCounter(pli);
+    else
+        pli->QuadPart = ::GetTickCount();
+
+    if (pliElapsed)
+        pliElapsed->QuadPart -= liStart.QuadPart;
+}
+
+
+/********************************************************************
+ PerfConvertToSeconds - converts perf number to seconds
+
+********************************************************************/
+extern "C" double DAPI PerfConvertToSeconds(
+    __in const LARGE_INTEGER* pli
+    )
+{
+    Assert(0 < vdFrequency);
+    return pli->QuadPart / vdFrequency;
+}