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      1 /*	$NetBSD: qdisc_priq.c,v 1.6 2006/10/28 11:43:02 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 }
    127