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
48void
49fifoq_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}
94