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Diffstat (limited to 'src/libjasper/base/jas_tmr.c')
| -rw-r--r-- | src/libjasper/base/jas_tmr.c | 149 |
1 files changed, 149 insertions, 0 deletions
diff --git a/src/libjasper/base/jas_tmr.c b/src/libjasper/base/jas_tmr.c new file mode 100644 index 0000000..942a083 --- /dev/null +++ b/src/libjasper/base/jas_tmr.c @@ -0,0 +1,149 @@ +/* + * Copyright (c) 2004 Michael David Adams. + * All rights reserved. + */ + +/* __START_OF_JASPER_LICENSE__ + * + * JasPer License Version 2.0 + * + * Copyright (c) 2001-2006 Michael David Adams + * Copyright (c) 1999-2000 Image Power, Inc. + * Copyright (c) 1999-2000 The University of British Columbia + * + * All rights reserved. + * + * Permission is hereby granted, free of charge, to any person (the + * "User") obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without restriction, + * including without limitation the rights to use, copy, modify, merge, + * publish, distribute, and/or sell copies of the Software, and to permit + * persons to whom the Software is furnished to do so, subject to the + * following conditions: + * + * 1. The above copyright notices and this permission notice (which + * includes the disclaimer below) shall be included in all copies or + * substantial portions of the Software. + * + * 2. The name of a copyright holder shall not be used to endorse or + * promote products derived from the Software without specific prior + * written permission. + * + * THIS DISCLAIMER OF WARRANTY CONSTITUTES AN ESSENTIAL PART OF THIS + * LICENSE. NO USE OF THE SOFTWARE IS AUTHORIZED HEREUNDER EXCEPT UNDER + * THIS DISCLAIMER. THE SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS + * "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING + * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A + * PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS. IN NO + * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, OR ANY SPECIAL + * INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES WHATSOEVER RESULTING + * FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, + * NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION + * WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. NO ASSURANCES ARE + * PROVIDED BY THE COPYRIGHT HOLDERS THAT THE SOFTWARE DOES NOT INFRINGE + * THE PATENT OR OTHER INTELLECTUAL PROPERTY RIGHTS OF ANY OTHER ENTITY. + * EACH COPYRIGHT HOLDER DISCLAIMS ANY LIABILITY TO THE USER FOR CLAIMS + * BROUGHT BY ANY OTHER ENTITY BASED ON INFRINGEMENT OF INTELLECTUAL + * PROPERTY RIGHTS OR OTHERWISE. AS A CONDITION TO EXERCISING THE RIGHTS + * GRANTED HEREUNDER, EACH USER HEREBY ASSUMES SOLE RESPONSIBILITY TO SECURE + * ANY OTHER INTELLECTUAL PROPERTY RIGHTS NEEDED, IF ANY. THE SOFTWARE + * IS NOT FAULT-TOLERANT AND IS NOT INTENDED FOR USE IN MISSION-CRITICAL + * SYSTEMS, SUCH AS THOSE USED IN THE OPERATION OF NUCLEAR FACILITIES, + * AIRCRAFT NAVIGATION OR COMMUNICATION SYSTEMS, AIR TRAFFIC CONTROL + * SYSTEMS, DIRECT LIFE SUPPORT MACHINES, OR WEAPONS SYSTEMS, IN WHICH + * THE FAILURE OF THE SOFTWARE OR SYSTEM COULD LEAD DIRECTLY TO DEATH, + * PERSONAL INJURY, OR SEVERE PHYSICAL OR ENVIRONMENTAL DAMAGE ("HIGH + * RISK ACTIVITIES"). THE COPYRIGHT HOLDERS SPECIFICALLY DISCLAIM ANY + * EXPRESS OR IMPLIED WARRANTY OF FITNESS FOR HIGH RISK ACTIVITIES. + * + * __END_OF_JASPER_LICENSE__ + */ + +/* + * Timing Routines + * + * $Id: jas_tmr.c,v 1.1 2008/10/17 06:14:59 scuri Exp $ + */ + +/******************************************************************************\ +* Includes. +\******************************************************************************/ + +#include <stdio.h> +#include <stdlib.h> +#include <time.h> + +#include "jasper/jas_tmr.h" + +/******************************************************************************\ +* Code. +\******************************************************************************/ + +#if defined(HAVE_GETTIMEOFDAY) + +void jas_tmr_start(jas_tmr_t *tmr) +{ + if (gettimeofday(&tmr->start, 0)) { + abort(); + } +} + +void jas_tmr_stop(jas_tmr_t *tmr) +{ + if (gettimeofday(&tmr->stop, 0)) { + abort(); + } +} + +double jas_tmr_get(jas_tmr_t *tmr) +{ + double t0; + double t1; + t0 = ((double) tmr->start.tv_sec) + ((double) tmr->start.tv_usec) / 1e6; + t1 = ((double) tmr->stop.tv_sec) + ((double) tmr->stop.tv_usec) / 1e6; + return t1 - t0; +} + +#elif defined(HAVE_GETRUSAGE) + +void jas_tmr_start(jas_tmr_t *tmr) +{ + if (getrusage(RUSAGE_SELF, &tmr->start) < 0) { + abort(); + } +} + +void jas_tmr_stop(jas_tmr_t *tmr) +{ + if (getrusage(RUSAGE_SELF, &tmr->stop) < 0) { + abort(); + } +} + +double jas_tmr_get(jas_tmr_t *tmr) +{ + double t; + t = ((tmr->stop.ru_utime.tv_sec * 1e6 + tmr->stop.ru_utime.tv_usec) - + (tmr->start.ru_utime.tv_sec * 1e6 + tmr->start.ru_utime.tv_usec)) / 1e6; + t += ((tmr->stop.ru_stime.tv_sec * 1e6 + tmr->stop.ru_stime.tv_usec) - + (tmr->start.ru_stime.tv_sec * 1e6 + tmr->start.ru_stime.tv_usec)) / 1e6; + return t; +} + +#else + +void jas_tmr_start(jas_tmr_t *tmr) +{ +} + +void jas_tmr_stop(jas_tmr_t *tmr) +{ +} + +double jas_tmr_get(jas_tmr_t *tmr) +{ + return 0.0; +} + +#endif + |