external/bsd/libevent/dist/test/bench_httpclient.c

   1 /*      $NetBSD: bench_httpclient.c,v 1.1.1.1 2013/04/11 16:43:32 christos Exp $        */
   2 /*
   3  * Copyright 2009-2012 Niels Provos and Nick Mathewson
   4  *
   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  * 4. The name of the author may not be used to endorse or promote products
  14  *    derived from this software without specific prior written permission.
  15  *
  16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  17  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  18  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  19  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  20  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  21  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  22  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  23  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  24  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  25  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  26  *
  27  */
  28
  29 #include <sys/types.h>
  30 #ifdef WIN32
  31 #include <winsock2.h>
  32 #else
  33 #include <sys/socket.h>
  34 #include <netinet/in.h>
  35 # ifdef _XOPEN_SOURCE_EXTENDED
  36 #  include <arpa/inet.h>
  37 # endif
  38 #endif
  39 #include <stdlib.h>
  40 #include <string.h>
  41 #include <errno.h>
  42
  43 #include "event2/event.h"
  44 #include "event2/bufferevent.h"
  45 #include "event2/buffer.h"
  46 #include "event2/util.h"
  47
  48 /* for EVUTIL_ERR_CONNECT_RETRIABLE macro */
  49 #include "util-internal.h"
  50
  51 const char *resource = NULL;
  52 struct event_base *base = NULL;
  53
  54 int total_n_handled = 0;
  55 int total_n_errors = 0;
  56 int total_n_launched = 0;
  57 size_t total_n_bytes = 0;
  58 struct timeval total_time = {0,0};
  59 int n_errors = 0;
  60
  61 const int PARALLELISM = 200;
  62 const int N_REQUESTS = 20000;
  63
  64 struct request_info {
  65         size_t n_read;
  66         struct timeval started;
  67 };
  68
  69 static int launch_request(void);
  70 static void readcb(struct bufferevent *b, void *arg);
  71 static void errorcb(struct bufferevent *b, short what, void *arg);
  72
  73 static void
  74 readcb(struct bufferevent *b, void *arg)
  75 {
  76         struct request_info *ri = arg;
  77         struct evbuffer *input = bufferevent_get_input(b);
  78         size_t n = evbuffer_get_length(input);
  79
  80         ri->n_read += n;
  81         evbuffer_drain(input, n);
  82 }
  83
  84 static void
  85 errorcb(struct bufferevent *b, short what, void *arg)
  86 {
  87         struct request_info *ri = arg;
  88         struct timeval now, diff;
  89         if (what & BEV_EVENT_EOF) {
  90                 ++total_n_handled;
  91                 total_n_bytes += ri->n_read;
  92                 evutil_gettimeofday(&now, NULL);
  93                 evutil_timersub(&now, &ri->started, &diff);
  94                 evutil_timeradd(&diff, &total_time, &total_time);
  95
  96                 if (total_n_handled && (total_n_handled%1000)==0)
  97                         printf("%d requests done\n",total_n_handled);
  98
  99                 if (total_n_launched < N_REQUESTS) {
 100                         if (launch_request() < 0)
 101                                 perror("Can't launch");
 102                 }
 103         } else {
 104                 ++total_n_errors;
 105                 perror("Unexpected error");
 106         }
 107
 108         bufferevent_setcb(b, NULL, NULL, NULL, NULL);
 109         free(ri);
 110         bufferevent_disable(b, EV_READ|EV_WRITE);
 111         bufferevent_free(b);
 112 }
 113
 114 static void
 115 frob_socket(evutil_socket_t sock)
 116 {
 117         struct linger l;
 118         int one = 1;
 119         if (setsockopt(sock, SOL_SOCKET, SO_REUSEADDR, (void*)&one, sizeof(one))<0)
 120                 perror("setsockopt(SO_REUSEADDR)");
 121         l.l_onoff = 1;
 122         l.l_linger = 0;
 123         if (setsockopt(sock, SOL_SOCKET, SO_LINGER, (void*)&l, sizeof(l))<0)
 124                 perror("setsockopt(SO_LINGER)");
 125 }
 126
 127 static int
 128 launch_request(void)
 129 {
 130         evutil_socket_t sock;
 131         struct sockaddr_in sin;
 132         struct bufferevent *b;
 133
 134         struct request_info *ri;
 135
 136         memset(&sin, 0, sizeof(sin));
 137
 138         ++total_n_launched;
 139
 140         sin.sin_family = AF_INET;
 141         sin.sin_addr.s_addr = htonl(0x7f000001);
 142         sin.sin_port = htons(8080);
 143         if ((sock = socket(AF_INET, SOCK_STREAM, 0)) < 0)
 144                 return -1;
 145         if (evutil_make_socket_nonblocking(sock) < 0)
 146                 return -1;
 147         frob_socket(sock);
 148         if (connect(sock, (struct sockaddr*)&sin, sizeof(sin)) < 0) {
 149                 int e = errno;
 150                 if (! EVUTIL_ERR_CONNECT_RETRIABLE(e)) {
 151                         return -1;
 152                 }
 153         }
 154
 155         ri = malloc(sizeof(*ri));
 156         ri->n_read = 0;
 157         evutil_gettimeofday(&ri->started, NULL);
 158
 159         b = bufferevent_socket_new(base, sock, BEV_OPT_CLOSE_ON_FREE);
 160
 161         bufferevent_setcb(b, readcb, NULL, errorcb, ri);
 162         bufferevent_enable(b, EV_READ|EV_WRITE);
 163
 164         evbuffer_add_printf(bufferevent_get_output(b),
 165             "GET %s HTTP/1.0\r\n\r\n", resource);
 166
 167         return 0;
 168 }
 169
 170
 171 int
 172 main(int argc, char **argv)
 173 {
 174         int i;
 175         struct timeval start, end, total;
 176         long long usec;
 177         double throughput;
 178         resource = "/ref";
 179
 180         setvbuf(stdout, NULL, _IONBF, 0);
 181
 182         base = event_base_new();
 183
 184         for (i=0; i < PARALLELISM; ++i) {
 185                 if (launch_request() < 0)
 186                         perror("launch");
 187         }
 188
 189         evutil_gettimeofday(&start, NULL);
 190
 191         event_base_dispatch(base);
 192
 193         evutil_gettimeofday(&end, NULL);
 194         evutil_timersub(&end, &start, &total);
 195         usec = total_time.tv_sec * 1000000 + total_time.tv_usec;
 196
 197         if (!total_n_handled) {
 198                 puts("Nothing worked.  You probably did something dumb.");
 199                 return 0;
 200         }
 201
 202
 203         throughput = total_n_handled /
 204             (total.tv_sec+ ((double)total.tv_usec)/1000000.0);
 205
 206 #ifdef WIN32
 207 #define I64_FMT "%I64d"
 208 #define I64_TYP __int64
 209 #else
 210 #define I64_FMT "%lld"
 211 #define I64_TYP long long int
 212 #endif
 213
 214         printf("\n%d requests in %d.%06d sec. (%.2f throughput)\n"
 215             "Each took about %.02f msec latency\n"
 216             I64_FMT "bytes read. %d errors.\n",
 217             total_n_handled,
 218             (int)total.tv_sec, (int)total.tv_usec,
 219             throughput,
 220             (double)(usec/1000) / total_n_handled,
 221             (I64_TYP)total_n_bytes, n_errors);
 222
 223         return 0;
 224 }