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113 lines
2.6 KiB
113 lines
2.6 KiB
// -*- Mode: C++; tab-width: 4; c-basic-offset: 4; indent-tabs-mode: nil -*-
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// vim:tabstop=4:shiftwidth=4:expandtab:
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/*
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* Copyright (C) 2004-2008 Wu Yongwei <adah at users dot sourceforge dot net>
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*
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* This software is provided 'as-is', without any express or implied
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* warranty. In no event will the authors be held liable for any
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* damages arising from the use of this software.
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*
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* Permission is granted to anyone to use this software for any purpose,
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* including commercial applications, and to alter it and redistribute
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* it freely, subject to the following restrictions:
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*
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* 1. The origin of this software must not be misrepresented; you must
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* not claim that you wrote the original software. If you use this
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* software in a product, an acknowledgement in the product
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* documentation would be appreciated but is not required.
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* 2. Altered source versions must be plainly marked as such, and must
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* not be misrepresented as being the original software.
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* 3. This notice may not be removed or altered from any source
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* distribution.
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*
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* This file is part of Stones of Nvwa:
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* http://sourceforge.net/projects/nvwa
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*
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*/
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/*!
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* \file pctimer.h
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* \ingroup QxMemLeak
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*
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* Function to get a high-resolution timer for Win32/Cygwin/Unix.
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*
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* \version 1.6, 2004/08/02
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* \author Wu Yongwei
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*
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*/
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#ifndef QT_NO_DEBUG
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#ifndef _QX_MODE_RELEASE
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#if _QX_USE_MEM_LEAK_DETECTION
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#ifndef _PCTIMER_H
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namespace qx {
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namespace memory {
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typedef double pctimer_t;
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} // namespace memory
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} // namespace qx
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#if defined(_WIN32) || defined(__CYGWIN__)
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#ifndef _WIN32
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#define _PCTIMER_NO_WIN32
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#endif /* _WIN32 */
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#ifndef WIN32_LEAN_AND_MEAN
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#define WIN32_LEAN_AND_MEAN
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#endif /* WIN32_LEAN_AND_MEAN */
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#include <windows.h>
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#ifdef _PCTIMER_NO_WIN32
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#undef _PCTIMER_NO_WIN32
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#undef _WIN32
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#endif /* _PCTIMER_NO_WIN32 */
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namespace qx {
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namespace memory {
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__inline pctimer_t pctimer(void)
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{
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static LARGE_INTEGER __pcount, __pcfreq;
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static int __initflag;
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if (!__initflag)
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{
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QueryPerformanceFrequency(&__pcfreq);
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__initflag++;
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}
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QueryPerformanceCounter(&__pcount);
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return (double)__pcount.QuadPart / (double)__pcfreq.QuadPart;
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}
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} // namespace memory
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} // namespace qx
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#else /* Not Win32/Cygwin */
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#include <sys/time.h>
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namespace qx {
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namespace memory {
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__inline pctimer_t pctimer(void)
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{
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struct timeval __tv;
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gettimeofday(&__tv, NULL);
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return (double)__tv.tv_sec + (double)__tv.tv_usec / 1000000;
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}
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} // namespace memory
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} // namespace qx
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#endif /* Win32/Cygwin */
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#endif /* _PCTIMER_H */
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#endif // _QX_USE_MEM_LEAK_DETECTION
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#endif // _QX_MODE_RELEASE
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#endif // QT_NO_DEBUG
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