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pctimer.h
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    00001 // -*- Mode: C++; tab-width: 4; c-basic-offset: 4; indent-tabs-mode: nil -*-
    00002 // vim:tabstop=4:shiftwidth=4:expandtab:
    00003
    00004 /*
    00005  * Copyright (C) 2004-2008 Wu Yongwei <adah at users dot sourceforge dot net>
    00006  *
    00007  * This software is provided 'as-is', without any express or implied
    00008  * warranty.  In no event will the authors be held liable for any
    00009  * damages arising from the use of this software.
    00010  *
    00011  * Permission is granted to anyone to use this software for any purpose,
    00012  * including commercial applications, and to alter it and redistribute
    00013  * it freely, subject to the following restrictions:
    00014  *
    00015  * 1. The origin of this software must not be misrepresented; you must
    00016  *    not claim that you wrote the original software.  If you use this
    00017  *    software in a product, an acknowledgement in the product
    00018  *    documentation would be appreciated but is not required.
    00019  * 2. Altered source versions must be plainly marked as such, and must
    00020  *    not be misrepresented as being the original software.
    00021  * 3. This notice may not be removed or altered from any source
    00022  *    distribution.
    00023  *
    00024  * This file is part of Stones of Nvwa:
    00025  *      http://sourceforge.net/projects/nvwa
    00026  *
    00027  */
    00028
    00040 #ifndef QT_NO_DEBUG
    00041 #ifndef _QX_MODE_RELEASE
    00042 #if _QX_USE_MEM_LEAK_DETECTION
    00043 #ifndef _PCTIMER_H
    00044
    00045 namespace qx {
    00046 namespace memory {
    00047
    00048 typedef double pctimer_t;
    00049
    00050 } // namespace memory
    00051 } // namespace qx
    00052
    00053 #if defined(_WIN32) || defined(__CYGWIN__)
    00054
    00055 #ifndef _WIN32
    00056 #define _PCTIMER_NO_WIN32
    00057 #endif /* _WIN32 */
    00058
    00059 #ifndef WIN32_LEAN_AND_MEAN
    00060 #define WIN32_LEAN_AND_MEAN
    00061 #endif /* WIN32_LEAN_AND_MEAN */
    00062 #include <windows.h>
    00063
    00064 #ifdef _PCTIMER_NO_WIN32
    00065 #undef _PCTIMER_NO_WIN32
    00066 #undef _WIN32
    00067 #endif /* _PCTIMER_NO_WIN32 */
    00068
    00069 namespace qx {
    00070 namespace memory {
    00071
    00072 __inline pctimer_t pctimer(void)
    00073 {
    00074     static LARGE_INTEGER __pcount, __pcfreq;
    00075     static int __initflag;
    00076
    00077     if (!__initflag)
    00078     {
    00079         QueryPerformanceFrequency(&__pcfreq);
    00080         __initflag++;
    00081     }
    00082
    00083     QueryPerformanceCounter(&__pcount);
    00084     return (double)__pcount.QuadPart / (double)__pcfreq.QuadPart;
    00085 }
    00086
    00087 } // namespace memory
    00088 } // namespace qx
    00089
    00090 #else /* Not Win32/Cygwin */
    00091
    00092 #include <sys/time.h>
    00093
    00094 namespace qx {
    00095 namespace memory {
    00096
    00097 __inline pctimer_t pctimer(void)
    00098 {
    00099     struct timeval __tv;
    00100     gettimeofday(&__tv, NULL);
    00101     return (double)__tv.tv_sec + (double)__tv.tv_usec / 1000000;
    00102 }
    00103
    00104 } // namespace memory
    00105 } // namespace qx
    00106
    00107 #endif /* Win32/Cygwin */
    00108
    00109 #endif /* _PCTIMER_H */
    00110 #endif // _QX_USE_MEM_LEAK_DETECTION
    00111 #endif // _QX_MODE_RELEASE
    00112 #endif // QT_NO_DEBUG