1 /*
2 * Copyright (c) 2001-2003 Swedish Institute of Computer Science.
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without modification,
6 * are permitted provided that the following conditions are met:
7 *
8 * 1. Redistributions of source code must retain the above copyright notice,
9 * this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright notice,
11 * this list of conditions and the following disclaimer in the documentation
12 * and/or other materials provided with the distribution.
13 * 3. The name of the author may not be used to endorse or promote products
14 * derived from this software without specific prior written permission.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
17 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
18 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
19 * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
20 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
21 * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
22 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
23 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
24 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
25 * OF SUCH DAMAGE.
26 *
27 * This file is part of the lwIP TCP/IP stack.
28 *
29 * Author: Adam Dunkels <adam@sics.se>
30 *
31 */
32
33 #include "arch/perf.h"
34
35 #include <stdio.h>
36
37 static FILE *f;
38
39 void
perf_print(unsigned long c1l,unsigned long c1h,unsigned long c2l,unsigned long c2h,char * key)40 perf_print(unsigned long c1l, unsigned long c1h,
41 unsigned long c2l, unsigned long c2h,
42 char *key)
43 {
44 unsigned long sub_ms, sub_ls;
45
46 sub_ms = c2h - c1h;
47 sub_ls = c2l - c1l;
48 if (c2l < c1l) sub_ms--;
49 fprintf(f, "%s: %.8lu%.8lu\n", key, sub_ms, sub_ls);
50 fflush(NULL);
51 }
52
53 void
perf_print_times(struct tms * start,struct tms * end,char * key)54 perf_print_times(struct tms *start, struct tms *end, char *key)
55 {
56 fprintf(f, "%s: %lu\n", key, end->tms_stime - start->tms_stime);
57 fflush(NULL);
58 }
59
60 void
perf_init(char * fname)61 perf_init(char *fname)
62 {
63 f = fopen(fname, "w");
64 }
65
66