Marsyas
0.6.0-alpha
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00001 /* 00002 ** Copyright (C) 1998-2005 George Tzanetakis <gtzan@cs.uvic.ca> 00003 ** 00004 ** This program is free software; you can redistribute it and/or modify 00005 ** it under the terms of the GNU General Public License as published by 00006 ** the Free Software Foundation; either version 2 of the License, or 00007 ** (at your option) any later version. 00008 ** 00009 ** This program is distributed in the hope that it will be useful, 00010 ** but WITHOUT ANY WARRANTY; without even the implied warranty of 00011 ** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 00012 ** GNU General Public License for more details. 00013 ** 00014 ** You should have received a copy of the GNU General Public License 00015 ** along with this program; if not, write to the Free Software 00016 ** Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. 00017 */ 00018 00019 #include <marsyas/sched/TmRealTime.h> 00020 #include <marsyas/sched/Scheduler.h> 00021 #include <marsyas/Conversions.h> // time2usecs 00022 #include "../common_source.h" 00023 00024 using namespace std; 00025 using namespace Marsyas; 00026 00027 TmRealTime::TmRealTime() : TmTimer("TmRealTime","System") 00028 { 00029 last_usecs_=0; 00030 last_usecs_=readTimeSrc(); 00031 } 00032 00033 TmRealTime::TmRealTime(std::string name) : TmTimer("TmRealTime",name) 00034 { 00035 last_usecs_=0; 00036 last_usecs_=readTimeSrc(); 00037 } 00038 00039 TmRealTime::TmRealTime(const TmRealTime& t) : TmTimer(t) 00040 { 00041 name_=t.name_; 00042 } 00043 00044 TmRealTime::~TmRealTime() { } 00045 00046 mrs_natural 00047 TmRealTime::getMicroSeconds() 00048 { 00049 /* struct timeval { 00050 int tv_sec; //seconds 00051 int tv_usec; //microseconds 00052 }; */ 00053 #ifndef WIN32 00054 struct timeval tv; 00055 struct timezone tz; 00056 gettimeofday(&tv, &tz); 00057 int u = tv.tv_usec; 00058 #else 00059 int u = 0; 00060 #endif 00061 return u; 00062 } 00063 00064 mrs_natural 00065 TmRealTime::readTimeSrc() 00066 { 00067 int read_usecs = getMicroSeconds(); 00068 int u = read_usecs - last_usecs_; 00069 if (u<0) { u = 1000000 + u; } 00070 last_usecs_ = read_usecs; 00071 return u; 00072 } 00073 00074 void 00075 TmRealTime::updtime() 00076 { 00077 cur_time_ = getMicroSeconds(); 00078 } 00079 00080 mrs_natural 00081 TmRealTime::intervalsize(std::string interval) 00082 { 00083 return time2usecs(interval); 00084 }