@joebigelow / wix-1
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1 // 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.
2
3 #include "precomp.h"
4
5
6 // Exit macros
7 #define PerfExitOnLastError(x, s, ...) ExitOnLastErrorSource(DUTIL_SOURCE_PERFUTIL, x, s, __VA_ARGS__)
8 #define PerfExitOnLastErrorDebugTrace(x, s, ...) ExitOnLastErrorDebugTraceSource(DUTIL_SOURCE_PERFUTIL, x, s, __VA_ARGS__)
9 #define PerfExitWithLastError(x, s, ...) ExitWithLastErrorSource(DUTIL_SOURCE_PERFUTIL, x, s, __VA_ARGS__)
10 #define PerfExitOnFailure(x, s, ...) ExitOnFailureSource(DUTIL_SOURCE_PERFUTIL, x, s, __VA_ARGS__)
11 #define PerfExitOnRootFailure(x, s, ...) ExitOnRootFailureSource(DUTIL_SOURCE_PERFUTIL, x, s, __VA_ARGS__)
12 #define PerfExitOnFailureDebugTrace(x, s, ...) ExitOnFailureDebugTraceSource(DUTIL_SOURCE_PERFUTIL, x, s, __VA_ARGS__)
13 #define PerfExitOnNull(p, x, e, s, ...) ExitOnNullSource(DUTIL_SOURCE_PERFUTIL, p, x, e, s, __VA_ARGS__)
14 #define PerfExitOnNullWithLastError(p, x, s, ...) ExitOnNullWithLastErrorSource(DUTIL_SOURCE_PERFUTIL, p, x, s, __VA_ARGS__)
15 #define PerfExitOnNullDebugTrace(p, x, e, s, ...) ExitOnNullDebugTraceSource(DUTIL_SOURCE_PERFUTIL, p, x, e, s, __VA_ARGS__)
16 #define PerfExitOnInvalidHandleWithLastError(p, x, s, ...) ExitOnInvalidHandleWithLastErrorSource(DUTIL_SOURCE_PERFUTIL, p, x, s, __VA_ARGS__)
17 #define PerfExitOnWin32Error(e, x, s, ...) ExitOnWin32ErrorSource(DUTIL_SOURCE_PERFUTIL, e, x, s, __VA_ARGS__)
18 #define PerfExitOnGdipFailure(g, x, s, ...) ExitOnGdipFailureSource(DUTIL_SOURCE_PERFUTIL, g, x, s, __VA_ARGS__)
19
20 static BOOL vfHighPerformanceCounter = TRUE; // assume the system has a high performance counter
21 static double vdFrequency = 1;
22
23
24 /********************************************************************
25 PerfInitialize - initializes internal static variables
26
27 ********************************************************************/
28 extern "C" void DAPI PerfInitialize(
29 )
30 {
31 LARGE_INTEGER liFrequency = { };
32
33 //
34 // check for high perf counter
35 //
36 if (!::QueryPerformanceFrequency(&liFrequency))
37 {
38 vfHighPerformanceCounter = FALSE;
39 vdFrequency = 1000; // ticks are measured in milliseconds
40 }
41 else
42 {
43 vdFrequency = static_cast<double>(liFrequency.QuadPart);
44 }
45 }
46
47
48 /********************************************************************
49 PerfClickTime - resets the clicker, or returns elapsed time since last call
50
51 NOTE: if pliElapsed is NULL, resets the elapsed time
52 if pliElapsed is not NULL, returns perf number since last call to PerfClickTime()
53 ********************************************************************/
54 extern "C" void DAPI PerfClickTime(
55 __out_opt LARGE_INTEGER* pliElapsed
56 )
57 {
58 static LARGE_INTEGER liStart = { };
59 LARGE_INTEGER* pli = pliElapsed;
60
61 if (!pli) // if elapsed time time was not requested, reset the start time
62 {
63 pli = &liStart;
64 }
65
66 if (vfHighPerformanceCounter)
67 {
68 ::QueryPerformanceCounter(pli);
69 }
70 else
71 {
72 pli->QuadPart = ::GetTickCount();
73 }
74
75 if (pliElapsed)
76 {
77 pliElapsed->QuadPart -= liStart.QuadPart;
78 }
79 }
80
81
82 /********************************************************************
83 PerfConvertToSeconds - converts perf number to seconds
84
85 ********************************************************************/
86 extern "C" double DAPI PerfConvertToSeconds(
87 __in const LARGE_INTEGER* pli
88 )
89 {
90 Assert(0 < vdFrequency);
91 return pli->QuadPart / vdFrequency;
92 }