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NFFT
3.3.1
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00001 /* 00002 * Copyright (c) 2002, 2016 Jens Keiner, Stefan Kunis, Daniel Potts 00003 * 00004 * This program is free software; you can redistribute it and/or modify it under 00005 * the terms of the GNU General Public License as published by the Free Software 00006 * Foundation; either version 2 of the License, or (at your option) any later 00007 * version. 00008 * 00009 * This program is distributed in the hope that it will be useful, but WITHOUT 00010 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS 00011 * FOR A PARTICULAR PURPOSE. See the GNU General Public License for more 00012 * details. 00013 * 00014 * You should have received a copy of the GNU General Public License along with 00015 * this program; if not, write to the Free Software Foundation, Inc., 51 00016 * Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. 00017 */ 00018 00019 #include "infft.h" 00020 00021 #ifdef HAVE_TIME_H 00022 #include <time.h> 00023 #endif 00024 00025 R Y(elapsed_seconds)(ticks t1, ticks t0) 00026 { 00027 UNUSED(t1); 00028 UNUSED(t0); 00029 return (R)(elapsed(t1,t0)) / (R)(TICKS_PER_SECOND); 00030 } 00031 00032 R Y(clock_gettime_seconds)(void) 00033 { 00034 #if defined(HAVE_CLOCK_GETTIME) 00035 struct timespec tp; 00036 if (clock_gettime(CLOCK_REALTIME, &tp) != 0) 00037 { 00038 tp.tv_sec = 0; 00039 tp.tv_nsec = 0; 00040 } 00041 00042 return tp.tv_sec+(R)tp.tv_nsec/K(1e9); 00043 #else 00044 return K(0.0); 00045 #endif 00046 } 00047