taskqueue - Major overhaul
[dragonfly.git] / usr.sbin / spray / spray.c
bloba2db1c06078f275b25c6716db9ec3238b8009e45
1 /*
2 * Copyright (c) 1993 Winning Strategies, Inc.
3 * All rights reserved.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. All advertising materials mentioning features or use of this software
14 * must display the following acknowledgement:
15 * This product includes software developed by Winning Strategies, Inc.
16 * 4. The name of the author may not be used to endorse or promote products
17 * derived from this software without specific prior written permission
19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
20 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
21 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
22 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
23 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
24 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
28 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30 * $FreeBSD: src/usr.sbin/spray/spray.c,v 1.5.2.2 2001/07/30 10:23:00 dd Exp $
31 * $DragonFly: src/usr.sbin/spray/spray.c,v 1.4 2005/03/19 17:43:18 liamfoy Exp $
34 #include <rpc/rpc.h>
35 #include <rpcsvc/spray.h>
37 #include <err.h>
38 #include <limits.h>
39 #include <stdio.h>
40 #include <stdlib.h>
41 #include <unistd.h>
43 #ifndef SPRAYOVERHEAD
44 #define SPRAYOVERHEAD 86
45 #endif
47 static void usage(void);
48 static void print_xferstats(unsigned int, int, double);
49 static int getnum(const char *);
51 /* spray buffer */
52 char spray_buffer[SPRAYMAX];
54 /* RPC timeouts */
55 struct timeval NO_DEFAULT = { -1, -1 };
56 struct timeval ONE_WAY = { 0, 0 };
57 struct timeval TIMEOUT = { 25, 0 };
59 int
60 main(int argc, char *argv[])
62 spraycumul host_stats;
63 sprayarr host_array;
64 CLIENT *cl;
65 int c;
66 u_int i;
67 u_int count = 0;
68 int delay = 0;
69 int length = 0;
70 double xmit_time; /* time to receive data */
72 while ((c = getopt(argc, argv, "c:d:l:")) != -1) {
73 switch (c) {
74 case 'c':
75 count = getnum(optarg);
76 break;
77 case 'd':
78 delay = getnum(optarg);
79 break;
80 case 'l':
81 length = getnum(optarg);
82 break;
83 default:
84 usage();
85 /* NOTREACHED */
88 argc -= optind;
89 argv += optind;
91 if (argc != 1) {
92 usage();
93 /* NOTREACHED */
97 /* Correct packet length. */
98 if (length > SPRAYMAX) {
99 length = SPRAYMAX;
100 } else if (length < SPRAYOVERHEAD) {
101 length = SPRAYOVERHEAD;
102 } else {
103 /* The RPC portion of the packet is a multiple of 32 bits. */
104 length -= SPRAYOVERHEAD - 3;
105 length &= ~3;
106 length += SPRAYOVERHEAD;
111 * The default value of count is the number of packets required
112 * to make the total stream size 100000 bytes.
114 if (!count) {
115 count = 100000 / length;
118 /* Initialize spray argument */
119 host_array.sprayarr_len = length - SPRAYOVERHEAD;
120 host_array.sprayarr_val = spray_buffer;
123 /* create connection with server */
124 if ((cl = clnt_create(*argv, SPRAYPROG, SPRAYVERS, "udp")) == NULL) {
125 clnt_pcreateerror(getprogname());
126 exit(1);
130 * For some strange reason, RPC 4.0 sets the default timeout,
131 * thus timeouts specified in clnt_call() are always ignored.
133 * The following (undocumented) hack resets the internal state
134 * of the client handle.
136 clnt_control(cl, CLSET_TIMEOUT, (caddr_t)&NO_DEFAULT);
139 /* Clear server statistics */
140 if (clnt_call(cl, SPRAYPROC_CLEAR, (xdrproc_t)xdr_void, NULL,
141 (xdrproc_t)xdr_void, NULL, TIMEOUT) != RPC_SUCCESS) {
142 clnt_perror(cl, getprogname());
143 exit(1);
146 /* Spray server with packets */
147 printf ("sending %u packets of lnth %d to %s ...", count, length,
148 *argv);
149 fflush (stdout);
151 for (i = 0; i < count; i++) {
152 clnt_call(cl, SPRAYPROC_SPRAY, (xdrproc_t)xdr_sprayarr,
153 &host_array, (xdrproc_t)xdr_void, NULL, ONE_WAY);
155 if (delay) {
156 usleep(delay);
161 /* Collect statistics from server */
162 if (clnt_call(cl, SPRAYPROC_GET, (xdrproc_t)xdr_void, NULL,
163 (xdrproc_t)xdr_spraycumul, &host_stats, TIMEOUT) != RPC_SUCCESS) {
164 clnt_perror(cl, getprogname());
165 exit(1);
168 xmit_time = host_stats.clock.sec +
169 (host_stats.clock.usec / 1000000.0);
171 printf ("\n\tin %.2f seconds elapsed time\n", xmit_time);
174 /* report dropped packets */
175 if (host_stats.counter != count) {
176 int packets_dropped = count - host_stats.counter;
178 printf("\t%d packets (%.2f%%) dropped\n",
179 packets_dropped,
180 100.0 * packets_dropped / count );
181 } else {
182 printf("\tno packets dropped\n");
185 printf("Sent:");
186 print_xferstats(count, length, xmit_time);
188 printf("Rcvd:");
189 print_xferstats(host_stats.counter, length, xmit_time);
191 clnt_destroy(cl);
192 exit (0);
196 static void
197 print_xferstats(u_int packets, int packetlen, double xfertime)
199 int datalen;
200 double pps; /* packets per second */
201 double bps; /* bytes per second */
203 datalen = packets * packetlen;
204 pps = packets / xfertime;
205 bps = datalen / xfertime;
207 printf("\t%.0f packets/sec, ", pps);
209 if (bps >= 1024)
210 printf ("%.1fK ", bps / 1024);
211 else
212 printf ("%.0f ", bps);
214 printf("bytes/sec\n");
217 static int
218 getnum(const char *arg)
220 char *ep;
221 long tmp;
223 tmp = strtol(arg, &ep, 10);
224 if (*ep != NULL || tmp < INT_MIN || tmp > INT_MAX)
225 errx(1, "invalid value: %s", arg);
227 return((int)tmp);
230 static void
231 usage(void)
233 fprintf(stderr,
234 "usage: spray [-c count] [-l length] [-d delay] host\n");
235 exit(1);