usr.sbin/altq/altqstat/qdisc_priq.c

   1 /*      $NetBSD: qdisc_priq.c,v 1.5 2006/10/12 19:59:13 peter Exp $     */
   2 /*      $KAME: qdisc_priq.c,v 1.6 2003/07/10 12:09:38 kjc Exp $ */
   3 /*
   4  * Copyright (C) 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_priq.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 "quip_client.h"
  47 #include "altqstat.h"
  48
  49 void
  50 priq_stat_loop(int fd, const char *ifname, int count, int interval)
  51 {
  52         struct priq_classstats stats1[PRIQ_MAXPRI], stats2[PRIQ_MAXPRI];
  53         char clnames[PRIQ_MAXPRI][128];
  54         struct priq_class_stats get_stats;
  55         struct priq_classstats  *sp, *lp, *new, *last, *tmp;
  56         struct timeval          cur_time, last_time;
  57         int                     i;
  58         double                  sec;
  59         int                     cnt = count;
  60         sigset_t                omask;
  61
  62         strlcpy(get_stats.iface.ifname, ifname,
  63                 sizeof(get_stats.iface.ifname));
  64         new = &stats1[0];
  65         last = &stats2[0];
  66
  67         /* invalidate class handles */
  68         for (i=0; i<PRIQ_MAXPRI; i++)
  69                 last[i].class_handle = PRIQ_NULLCLASS_HANDLE;
  70
  71         for (;;) {
  72                 get_stats.stats = new;
  73                 get_stats.maxpri = PRIQ_MAXPRI;
  74                 if (ioctl(fd, PRIQ_GETSTATS, &get_stats) < 0)
  75                         err(1, "ioctl PRIQ_GETSTATS");
  76
  77                 gettimeofday(&cur_time, NULL);
  78                 sec = calc_interval(&cur_time, &last_time);
  79
  80                 printf("\n%s:\n", ifname);
  81
  82                 for (i = get_stats.maxpri; i >= 0; i--) {
  83                         sp = &new[i];
  84                         lp = &last[i];
  85
  86                         if (sp->class_handle == PRIQ_NULLCLASS_HANDLE)
  87                                 continue;
  88
  89                         if (sp->class_handle != lp->class_handle) {
  90                                 quip_chandle2name(ifname, sp->class_handle,
  91                                     clnames[i], sizeof(clnames[0]));
  92                         }
  93
  94                         printf("[%s] handle:%#x pri:%d\n",
  95                                clnames[i], sp->class_handle, i);
  96                         if (lp->class_handle != PRIQ_NULLCLASS_HANDLE) {
  97                                 printf("  measured: %sbps qlen:%2d period:%u\n",
  98                                     rate2str(calc_rate(sp->xmitcnt.bytes,
  99                                         lp->xmitcnt.bytes, sec)),
 100                                     sp->qlength, sp->period);
 101                         }
 102                         printf("     packets:%llu (%llu bytes) drops:%llu\n",
 103                                (ull)sp->xmitcnt.packets,
 104                                (ull)sp->xmitcnt.bytes,
 105                                (ull)sp->dropcnt.packets);
 106                         if (sp->qtype == Q_RED)
 107                                 print_redstats(sp->red);
 108                         else if (sp->qtype == Q_RIO)
 109                                 print_riostats(sp->red);
 110                 }
 111
 112                 /* swap the buffer pointers */
 113                 tmp = last;
 114                 last = new;
 115                 new = tmp;
 116
 117                 last_time = cur_time;
 118
 119                 if (count != 0 && --cnt == 0)
 120                         break;
 121
 122                 /* wait for alarm signal */
 123                 if (sigprocmask(SIG_BLOCK, NULL, &omask) == 0)
 124                         sigsuspend(&omask);
 125         }
 126 }