N-sim
Emulation and simulation of
Wireless Sensor Networks



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/home/brennan/n-sim/OrbisQuartus/server/l4/patches/lwip-ore/perf.c

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00001 /*
00002  * Copyright (c) 2001-2003 Swedish Institute of Computer Science.
00003  * All rights reserved. 
00004  * 
00005  * Redistribution and use in source and binary forms, with or without modification, 
00006  * are permitted provided that the following conditions are met:
00007  *
00008  * 1. Redistributions of source code must retain the above copyright notice,
00009  *    this list of conditions and the following disclaimer.
00010  * 2. Redistributions in binary form must reproduce the above copyright notice,
00011  *    this list of conditions and the following disclaimer in the documentation
00012  *    and/or other materials provided with the distribution.
00013  * 3. The name of the author may not be used to endorse or promote products
00014  *    derived from this software without specific prior written permission. 
00015  *
00016  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED 
00017  * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 
00018  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT 
00019  * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 
00020  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT 
00021  * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 
00022  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
00023  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 
00024  * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY 
00025  * OF SUCH DAMAGE.
00026  *
00027  * This file is part of the lwIP TCP/IP stack.
00028  * 
00029  * Author: Adam Dunkels <adam@sics.se>
00030  *
00031  */
00032 
00033 #include "arch/perf.h"
00034 
00035 #include <stdio.h>
00036 
00037 static FILE *f;
00038 
00039 void
00040 perf_print(unsigned long c1l, unsigned long c1h,
00041            unsigned long c2l, unsigned long c2h,
00042            char *key)
00043 {
00044   unsigned long sub_ms, sub_ls;
00045   
00046   sub_ms = c2h - c1h;
00047   sub_ls = c2l - c1l;
00048   if (c2l < c1l) sub_ms--;
00049   fprintf(f, "%s: %.8lu%.8lu\n", key, sub_ms, sub_ls);
00050   fflush(NULL);
00051 }
00052 
00053 void
00054 perf_print_times(struct tms *start, struct tms *end, char *key)
00055 {
00056   fprintf(f, "%s: %lu\n", key, end->tms_stime - start->tms_stime);
00057   fflush(NULL);  
00058 }
00059 
00060 void
00061 perf_init(char *fname)
00062 {
00063   f = fopen(fname, "w");  
00064 }
00065         


© 2007, Los Alamos National Security, LLC.