[457] | 1 | /*
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| 2 | * Copyright (c) 2001-2003 Swedish Institute of Computer Science.
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| 3 | * All rights reserved.
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| 4 | *
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| 5 | * Redistribution and use in source and binary forms, with or without modification,
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| 6 | * are permitted provided that the following conditions are met:
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| 7 | *
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| 8 | * 1. Redistributions of source code must retain the above copyright notice,
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| 9 | * this list of conditions and the following disclaimer.
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| 10 | * 2. Redistributions in binary form must reproduce the above copyright notice,
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| 11 | * this list of conditions and the following disclaimer in the documentation
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| 12 | * and/or other materials provided with the distribution.
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| 13 | * 3. The name of the author may not be used to endorse or promote products
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| 14 | * derived from this software without specific prior written permission.
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| 15 | *
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| 16 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
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| 17 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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| 18 | * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
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| 19 | * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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| 20 | * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
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| 21 | * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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| 22 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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| 23 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
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| 24 | * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
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| 25 | * OF SUCH DAMAGE.
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| 26 | *
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| 27 | * This file is part of the lwIP TCP/IP stack.
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| 28 | *
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| 29 | * Author: Adam Dunkels <adam@sics.se>
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| 30 | *
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| 31 | */
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| 32 |
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| 33 | #include "arch/perf.h"
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| 34 |
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| 35 | #include <stdio.h>
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| 36 |
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| 37 | static FILE *f;
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| 38 |
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| 39 | void
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| 40 | perf_print(unsigned long c1l, unsigned long c1h,
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| 41 | unsigned long c2l, unsigned long c2h,
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| 42 | char *key)
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| 43 | {
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| 44 | unsigned long sub_ms, sub_ls;
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| 45 |
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| 46 | sub_ms = c2h - c1h;
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| 47 | sub_ls = c2l - c1l;
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| 48 | if (c2l < c1l) sub_ms--;
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| 49 | fprintf(f, "%s: %.8lu%.8lu\n", key, sub_ms, sub_ls);
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| 50 | fflush(NULL);
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| 51 | }
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| 52 |
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| 53 | void
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| 54 | perf_print_times(struct tms *start, struct tms *end, char *key)
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| 55 | {
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| 56 | fprintf(f, "%s: %lu\n", key, end->tms_stime - start->tms_stime);
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| 57 | fflush(NULL);
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| 58 | }
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| 59 |
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| 60 | void
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| 61 | perf_init(char *fname)
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| 62 | {
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| 63 | f = fopen(fname, "w");
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| 64 | }
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| 65 |
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