1 /* 2 * Copyright (c) 1993 George V. Neville-Neil 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. The name, George Neville-Neil may not be used to endorse or promote 14 * products derived from this software without specific prior 15 * written permission. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 */ 29 30 #ifndef _TIMING_H_ 31 #define _TIMING_H_ 32 33 #ifdef TIME_WITH_SYS_TIME 34 #include <sys/time.h> 35 #include <time.h> 36 #else /* !TIME_WITH_SYS_TIME */ 37 #ifdef HAVE_SYS_TIME_H 38 #include <sys/time.h> 39 #else /* !HAVE_SYS_TIME_H */ 40 #include <time.h> 41 #endif /* !HAVE_SYS_TIME_H */ 42 #endif /* !TIME_WITH_SYS_TIME */ 43 44 static struct timeval aftertp, beforetp; 45 46 #define BEGINTIMING gettimeofday(&beforetp, NULL) 47 48 #define ENDTIMING gettimeofday(&aftertp, NULL); \ 49 if(beforetp.tv_usec > aftertp.tv_usec) \ 50 { \ 51 aftertp.tv_usec += 1000000; \ 52 aftertp.tv_sec--; \ 53 } 54 55 #define TIMINGUS (((aftertp.tv_sec - beforetp.tv_sec) * 1000000) + \ 56 (aftertp.tv_usec - beforetp.tv_usec)) 57 58 #define TIMINGMS (((aftertp.tv_sec - beforetp.tv_sec) * 1000) + \ 59 ((aftertp.tv_usec - beforetp.tv_usec) / 1000)) 60 61 #define TIMINGS ((aftertp.tv_sec - beforetp.tv_sec) + \ 62 (aftertp.tv_usec - beforetp.tv_usec) / 1000000) 63 64 #endif /* _TIMING_H_ */ 65
