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
49void
50priq_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