usr.sbin/altq/altqstat/qdisc_fifoq.c

   1 /*      $NetBSD: qdisc_fifoq.c,v 1.4 2006/10/12 19:59:13 peter Exp $    */
   2 /*      $KAME: qdisc_fifoq.c,v 1.6 2002/11/08 06:36:18 kjc Exp $        */
   3 /*
   4  * Copyright (C) 1999-2000
   5  *      Sony Computer Science Laboratories, Inc.  All rights reserved.
   6  *
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted provided that the following conditions
   9  * are met:
  10  * 1. Redistributions of source code must retain the above copyright
  11  *    notice, this list of conditions and the following disclaimer.
  12  * 2. Redistributions in binary form must reproduce the above copyright
  13  *    notice, this list of conditions and the following disclaimer in the
  14  *    documentation and/or other materials provided with the distribution.
  15  *
  16  * THIS SOFTWARE IS PROVIDED BY SONY CSL AND CONTRIBUTORS ``AS IS'' AND
  17  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  18  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  19  * ARE DISCLAIMED.  IN NO EVENT SHALL SONY CSL OR CONTRIBUTORS BE LIABLE
  20  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  21  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  22  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  23  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  24  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  25  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  26  * SUCH DAMAGE.
  27  */
  28
  29 #include <sys/param.h>
  30 #include <sys/ioctl.h>
  31 #include <sys/time.h>
  32 #include <sys/socket.h>
  33 #include <net/if.h>
  34 #include <netinet/in.h>
  35 #include <altq/altq.h>
  36 #include <altq/altq_fifoq.h>
  37
  38 #include <stdio.h>
  39 #include <stdlib.h>
  40 #include <unistd.h>
  41 #include <string.h>
  42 #include <signal.h>
  43 #include <errno.h>
  44 #include <err.h>
  45
  46 #include "altqstat.h"
  47
  48 void
  49 fifoq_stat_loop(int fd, const char *ifname, int count, int interval)
  50 {
  51         struct fifoq_getstats get_stats;
  52         struct timeval cur_time, last_time;
  53         u_int64_t last_bytes;
  54         double sec;
  55         int cnt = count;
  56         sigset_t                omask;
  57
  58         strlcpy(get_stats.iface.fifoq_ifname, ifname,
  59                 sizeof(get_stats.iface.fifoq_ifname));
  60
  61         gettimeofday(&last_time, NULL);
  62         last_time.tv_sec -= interval;
  63         last_bytes = 0;
  64
  65         for (;;) {
  66                 if (ioctl(fd, FIFOQ_GETSTATS, &get_stats) < 0)
  67                         err(1, "ioctl FIFOQ_GETSTATS");
  68
  69                 gettimeofday(&cur_time, NULL);
  70                 sec = calc_interval(&cur_time, &last_time);
  71
  72                 printf(" q_len:%d q_limit:%d period:%u\n",
  73                        get_stats.q_len, get_stats.q_limit, get_stats.period);
  74                 printf(" xmit:%llu pkts (%llu bytes) drop:%llu pkts (%llu bytes)\n",
  75                        (ull)get_stats.xmit_cnt.packets,
  76                        (ull)get_stats.xmit_cnt.bytes,
  77                        (ull)get_stats.drop_cnt.packets,
  78                        (ull)get_stats.drop_cnt.bytes);
  79                 printf(" throughput: %sbps\n",
  80                        rate2str(calc_rate(get_stats.xmit_cnt.bytes,
  81                                           last_bytes, sec)));
  82
  83                 last_bytes = get_stats.xmit_cnt.bytes;
  84                 last_time = cur_time;
  85
  86                 if (count != 0 && --cnt == 0)
  87                         break;
  88
  89                 /* wait for alarm signal */
  90                 if (sigprocmask(SIG_BLOCK, NULL, &omask) == 0)
  91                         sigsuspend(&omask);
  92         }
  93 }