| /****************************************************************************** |
| * Copyright (c) 2005 The Regents of the University of California. |
| * This material was produced under U.S. Government contract W-7405-ENG-36 |
| * for Los Alamos National Laboratory, which is operated by the University |
| * of California for the U.S. Department of Energy. The U.S. Government has |
| * rights to use, reproduce, and distribute this software. NEITHER THE |
| * GOVERNMENT NOR THE UNIVERSITY MAKES ANY WARRANTY, EXPRESS OR IMPLIED, OR |
| * ASSUMES ANY LIABILITY FOR THE USE OF THIS SOFTWARE. If software is modified |
| * to produce derivative works, such modified software should be clearly |
| * marked, so as not to confuse it with the version available from LANL. |
| * |
| * Additionally, this program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License v1.0 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/epl-v10.html |
| * |
| * LA-CC 04-115 |
| ******************************************************************************/ |
| #ifdef __gnu_linux__ |
| #define _GNU_SOURCE |
| #endif /* __gnu_linux__ */ |
| |
| #include <stdio.h> |
| #include <stdlib.h> |
| #include <string.h> |
| |
| #include "itimer.h" |
| |
| itimer * |
| itimer_new(char *label) |
| { |
| static int id = 0; |
| itimer * t = (itimer *)malloc(sizeof(itimer)); |
| |
| if (label != NULL) |
| t->label = strdup(label); |
| else |
| asprintf(&t->label, "timer_%d\n", id++); |
| |
| t->running = 0; |
| t->total_elapsed = 0; |
| t->mark_cnt = 0; |
| return t; |
| } |
| |
| void |
| itimer_start(itimer *t) |
| { |
| if (t->running) { |
| printf("warning: attempt to start a running timer\n"); fflush(stdout); |
| return; |
| } |
| |
| (void)gettimeofday(&t->start, NULL); |
| |
| t->last_mark.tv_sec = t->start.tv_sec; |
| t->last_mark.tv_usec = t->start.tv_usec; |
| t->running = 1; |
| t->elapsed = 0; |
| } |
| |
| void |
| itimer_reset(itimer *t) |
| { |
| t->running = 0; |
| t->elapsed = 0; |
| t->total_elapsed = 0; |
| } |
| |
| void |
| itimer_print(itimer *t) |
| { |
| int i; |
| |
| printf("++++ %s: started at %ld+%ld\n", t->label, (long)t->start.tv_sec, (long)t->start.tv_usec); fflush(stdout); |
| for (i = 0; i < t->mark_cnt; i++) |
| printf("++++ %s: \"%s\" mark time is %ld ms\n", t->label, t->marks[i].label, t->marks[i].elapsed); fflush(stdout); |
| if (t->elapsed > 0) |
| printf("++++ %s: last elapsed time is %ld ms\n", t->label, t->elapsed); fflush(stdout); |
| if (t->total_elapsed > 0) |
| printf("++++ %s: total elapsed time is %ld ms\n", t->label, t->total_elapsed); fflush(stdout); |
| } |
| |
| void |
| itimer_mark(itimer *t, char *msg) |
| { |
| struct timeval mark; |
| |
| if (t->mark_cnt == MAX_MARKS) |
| return; |
| |
| (void)gettimeofday(&mark, NULL); |
| |
| t->marks[t->mark_cnt].elapsed = ((long)mark.tv_sec * 1000 + (long)mark.tv_usec / 1000) |
| - ((long)t->last_mark.tv_sec * 1000 + (long)t->last_mark.tv_usec / 1000); |
| |
| t->marks[t->mark_cnt].label = strdup(msg); |
| |
| t->last_mark.tv_sec = mark.tv_sec; |
| t->last_mark.tv_usec = mark.tv_usec; |
| t->mark_cnt++; |
| } |
| |
| void |
| itimer_stop(itimer *t) |
| { |
| if (!t->running) { |
| printf("warning: attempt to stop a stopped timer\n"); fflush(stdout); |
| return; |
| } |
| |
| (void)gettimeofday(&t->stop, NULL); |
| |
| t->elapsed = ((long)t->stop.tv_sec * 1000 + (long)t->stop.tv_usec / 1000) |
| - ((long)t->start.tv_sec * 1000 + (long)t->start.tv_usec / 1000); |
| t->total_elapsed += t->elapsed; |
| t->running = 0; |
| } |
| |
| void |
| itimer_free(itimer *t) |
| { |
| int i; |
| if (t->label != NULL) |
| free(t->label); |
| for (i = 0; i < t->mark_cnt; i++) |
| free(t->marks[i].label); |
| free(t); |
| } |