Timer_unix.cpp
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00001 /*
00002  * This file is part of ALVAR, A Library for Virtual and Augmented Reality.
00003  *
00004  * Copyright 2007-2012 VTT Technical Research Centre of Finland
00005  *
00006  * Contact: VTT Augmented Reality Team <alvar.info@vtt.fi>
00007  *          <http://www.vtt.fi/multimedia/alvar.html>
00008  *
00009  * ALVAR is free software; you can redistribute it and/or modify it under the
00010  * terms of the GNU Lesser General Public License as published by the Free
00011  * Software Foundation; either version 2.1 of the License, or (at your option)
00012  * any later version.
00013  *
00014  * This library is distributed in the hope that it will be useful, but WITHOUT
00015  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
00016  * FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License
00017  * for more details.
00018  *
00019  * You should have received a copy of the GNU Lesser General Public License
00020  * along with ALVAR; if not, see
00021  * <http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html>.
00022  */
00023 
00024 #include "Timer_private.h"
00025 
00026 #include <time.h>
00027 
00028 namespace alvar {
00029 
00030 class TimerPrivateData
00031 {
00032 public:
00033     TimerPrivateData()
00034         : mStart()
00035     {
00036     }
00037 
00038     timespec mStart;
00039 };
00040 
00041 TimerPrivate::TimerPrivate()
00042     : d(new TimerPrivateData())
00043 {
00044 }
00045 
00046 TimerPrivate::~TimerPrivate()
00047 {
00048     delete d;
00049 }
00050 
00051 void TimerPrivate::start()
00052 {
00053     clock_gettime(CLOCK_MONOTONIC, &d->mStart);
00054 }
00055 
00056 double TimerPrivate::stop()
00057 {
00058     timespec stop;
00059     clock_gettime(CLOCK_MONOTONIC, &stop);
00060     return (stop.tv_sec - d->mStart.tv_sec) +
00061            (stop.tv_nsec - d->mStart.tv_nsec) / 1000000000.0;
00062 }
00063 
00064 } // namespace alvar


ar_track_alvar
Author(s): Scott Niekum
autogenerated on Thu Feb 16 2017 03:23:02