Home | History | Annotate | Line # | Download | only in test 
      1 /*	$NetBSD: bench_httpclient.c,v 1.1.1.3 2021/04/07 02:43:15 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 /* for EVUTIL_ERR_CONNECT_RETRIABLE macro */
     30 #include "util-internal.h"
     31 
     32 #include <sys/types.h>
     33 #ifdef _WIN32
     34 #include <winsock2.h>
     35 #else
     36 #include <sys/socket.h>
     37 #include <netinet/in.h>
     38 # ifdef _XOPEN_SOURCE_EXTENDED
     39 #  include <arpa/inet.h>
     40 # endif
     41 #endif
     42 #include <stdlib.h>
     43 #include <string.h>
     44 #include <errno.h>
     45 
     46 #include "event2/event.h"
     47 #include "event2/bufferevent.h"
     48 #include "event2/buffer.h"
     49 #include "event2/util.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 #ifdef EVENT__HAVE_STRUCT_LINGER
    118 	struct linger l;
    119 #endif
    120 	int one = 1;
    121 	if (setsockopt(sock, SOL_SOCKET, SO_REUSEADDR, (void*)&one, sizeof(one))<0)
    122 		perror("setsockopt(SO_REUSEADDR)");
    123 #ifdef EVENT__HAVE_STRUCT_LINGER
    124 	l.l_onoff = 1;
    125 	l.l_linger = 0;
    126 	if (setsockopt(sock, SOL_SOCKET, SO_LINGER, (void*)&l, sizeof(l))<0)
    127 		perror("setsockopt(SO_LINGER)");
    128 #endif
    129 }
    130 
    131 static int
    132 launch_request(void)
    133 {
    134 	evutil_socket_t sock;
    135 	struct sockaddr_in sin;
    136 	struct bufferevent *b;
    137 
    138 	struct request_info *ri;
    139 
    140 	memset(&sin, 0, sizeof(sin));
    141 
    142 	++total_n_launched;
    143 
    144 	sin.sin_family = AF_INET;
    145 	sin.sin_addr.s_addr = htonl(0x7f000001);
    146 	sin.sin_port = htons(8080);
    147 	if ((sock = socket(AF_INET, SOCK_STREAM, 0)) < 0)
    148 		return -1;
    149 	if (evutil_make_socket_nonblocking(sock) < 0) {
    150 		evutil_closesocket(sock);
    151 		return -1;
    152 	}
    153 	frob_socket(sock);
    154 	if (connect(sock, (struct sockaddr*)&sin, sizeof(sin)) < 0) {
    155 		int e = evutil_socket_geterror(sock);
    156 		if (! EVUTIL_ERR_CONNECT_RETRIABLE(e)) {
    157 			evutil_closesocket(sock);
    158 			return -1;
    159 		}
    160 	}
    161 
    162 	ri = malloc(sizeof(*ri));
    163 	ri->n_read = 0;
    164 	evutil_gettimeofday(&ri->started, NULL);
    165 
    166 	b = bufferevent_socket_new(base, sock, BEV_OPT_CLOSE_ON_FREE);
    167 
    168 	bufferevent_setcb(b, readcb, NULL, errorcb, ri);
    169 	bufferevent_enable(b, EV_READ|EV_WRITE);
    170 
    171 	evbuffer_add_printf(bufferevent_get_output(b),
    172 	    "GET %s HTTP/1.0\r\n\r\n", resource);
    173 
    174 	return 0;
    175 }
    176 
    177 
    178 int
    179 main(int argc, char **argv)
    180 {
    181 	int i;
    182 	struct timeval start, end, total;
    183 	long long usec;
    184 	double throughput;
    185 
    186 #ifdef _WIN32
    187 	WSADATA WSAData;
    188 	WSAStartup(0x101, &WSAData);
    189 #endif
    190 
    191 	resource = "/ref";
    192 
    193 	setvbuf(stdout, NULL, _IONBF, 0);
    194 
    195 	base = event_base_new();
    196 
    197 	for (i=0; i < PARALLELISM; ++i) {
    198 		if (launch_request() < 0)
    199 			perror("launch");
    200 	}
    201 
    202 	evutil_gettimeofday(&start, NULL);
    203 
    204 	event_base_dispatch(base);
    205 
    206 	evutil_gettimeofday(&end, NULL);
    207 	evutil_timersub(&end, &start, &total);
    208 	usec = total_time.tv_sec * (long long)1000000 + total_time.tv_usec;
    209 
    210 	if (!total_n_handled) {
    211 		puts("Nothing worked.  You probably did something dumb.");
    212 		return 0;
    213 	}
    214 
    215 
    216 	throughput = total_n_handled /
    217 	    (total.tv_sec+ ((double)total.tv_usec)/1000000.0);
    218 
    219 #ifdef _WIN32
    220 #define I64_FMT "%I64d"
    221 #define I64_TYP __int64
    222 #else
    223 #define I64_FMT "%lld"
    224 #define I64_TYP long long int
    225 #endif
    226 
    227 	printf("\n%d requests in %d.%06d sec. (%.2f throughput)\n"
    228 	    "Each took about %.02f msec latency\n"
    229 	    I64_FMT "bytes read. %d errors.\n",
    230 	    total_n_handled,
    231 	    (int)total.tv_sec, (int)total.tv_usec,
    232 	    throughput,
    233 	    (double)(usec/1000) / total_n_handled,
    234 	    (I64_TYP)total_n_bytes, n_errors);
    235 
    236 #ifdef _WIN32
    237 	WSACleanup();
    238 #endif
    239 
    240 	return 0;
    241 }
    242