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      1 /*	$NetBSD: qdisc_blue.c,v 1.4 2006/10/28 11:43:02 peter Exp $	*/
      2 /*	$KAME: qdisc_blue.c,v 1.3 2001/08/15 12:51:58 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_blue.h>
     37 
     38 #include <stdio.h>
     39 #include <stdlib.h>
     40 #include <unistd.h>
     41 #include <string.h>
     42 #include <math.h>
     43 #include <errno.h>
     44 #include <err.h>
     45 
     46 #include "altqstat.h"
     47 
     48 void
     49 blue_stat_loop(int fd, const char *ifname, int count, int interval)
     50 {
     51 	struct blue_stats blue_stats;
     52 	struct timeval cur_time, last_time;
     53 	u_int64_t last_bytes;
     54 	double sec;
     55 	int cnt = count;
     56 
     57 	strlcpy(blue_stats.iface.blue_ifname, ifname,
     58 		sizeof(blue_stats.iface.blue_ifname));
     59 
     60 	gettimeofday(&last_time, NULL);
     61 	last_time.tv_sec -= interval;
     62 	last_bytes = 0;
     63 
     64 	for (;;) {
     65 		if (ioctl(fd, BLUE_GETSTATS, &blue_stats) < 0)
     66 			err(1, "ioctl BLUE_GETSTATS");
     67 
     68 		gettimeofday(&cur_time, NULL);
     69 		sec = calc_interval(&cur_time, &last_time);
     70 
     71 		printf(" q_len:%d , q_limit:%d, q_pmark: %d\n",
     72 		       blue_stats.q_len,  blue_stats.q_limit,
     73 		       blue_stats.q_pmark);
     74 		printf(" xmit: %llu pkts, drop: %llu pkts (forced: %llu, early: %llu)\n",
     75 		       (ull)blue_stats.xmit_packets,
     76 		       (ull)blue_stats.drop_packets,
     77 		       (ull)blue_stats.drop_forced,
     78 		       (ull)blue_stats.drop_unforced);
     79 		if (blue_stats.marked_packets != 0)
     80 			printf(" marked: %llu\n",
     81 			       (ull)blue_stats.marked_packets);
     82 		printf(" throughput: %sbps\n",
     83 		       rate2str(calc_rate(blue_stats.xmit_bytes,
     84 					  last_bytes, sec)));
     85 
     86 		last_bytes = blue_stats.xmit_bytes;
     87 		last_time = cur_time;
     88 
     89 		if (count != 0 && --cnt == 0)
     90 			break;
     91 
     92 		sleep(interval);
     93 	}
     94 }
     95