profiler.cpp

来自「freescale i.mx31 BSP CE5.0全部源码」· C++ 代码 · 共 75 行

//
// Copyright (c) Microsoft Corporation.  All rights reserved.
//
//
// Use of this source code is subject to the terms of the Microsoft end-user
// license agreement (EULA) under which you licensed this SOFTWARE PRODUCT.
// If you did not accept the terms of the EULA, you are not authorized to use
// this source code. For a copy of the EULA, please see the LICENSE.RTF on your
// install media.
//


#ifdef PROFILE

#include <windows.h>
#include <profiler.h>

// wKeyNum:
//   8  (F8)  Toggle output mode (buffered, unbuffered, CeLog)
//   9  (F9)  Start Monte Carlo profiling
//   10 (F10) Start KCall profiling
//   11 (F11) Start ObjCall profiling
//   12 (F12) Stop profiling
BOOL DoProfilerKey(WORD wKeyNum)
{
    // Default to buffered mode
    static DWORD dwOutputMode = PROFILE_BUFFER;
    static DWORD dwInterval   = 200;

    switch (wKeyNum) {
    case 8:
        // Circular toggle
        if (dwOutputMode == PROFILE_BUFFER) {
            // Buffered mode, go into unbuffered mode
            dwOutputMode = 0;
            dwInterval   = 1000;
            NKDbgPrintfW(L"Kernel Profiler mode: Unbuffered\r\n");
        } else if (dwOutputMode == 0) {
            // Unbuffered mode, go into CeLog mode
            dwOutputMode = PROFILE_CELOG;
            dwInterval   = 200;
            NKDbgPrintfW(L"Kernel Profiler mode: CeLog\r\n");
        } else {
            // CeLog mode, go into buffered mode
            dwOutputMode = PROFILE_BUFFER;
            dwInterval   = 200;
            NKDbgPrintfW(L"Kernel Profiler mode: Buffered\r\n");
        }
        break;

    case 9:
        ProfileStart(dwInterval, dwOutputMode); // Monte Carlo
        break;

    case 10:
        ProfileStart(dwInterval, PROFILE_KCALL | dwOutputMode);
        break;

    case 11:
        ProfileStart(dwInterval, PROFILE_OBJCALL | dwOutputMode);
        break;

    case 12:
        ProfileStop();
        break;

    default:
        break;
    }

    return TRUE;
}

#endif // PROFILE