1 /*
2 * Copyright 2009-2012 Niels Provos and Nick Mathewson
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 * 1. Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
12 * 4. The name of the author may not be used to endorse or promote products
13 * derived from this software without specific prior written permission.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
18 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25 *
26 */
27
28 /* for EVUTIL_ERR_CONNECT_RETRIABLE macro */
29 #include "util-internal.h"
30
31 #include <sys/types.h>
32 #ifdef _WIN32
33 #include <winsock2.h>
34 #else
35 #include <sys/socket.h>
36 #include <netinet/in.h>
37 # ifdef _XOPEN_SOURCE_EXTENDED
38 # include <arpa/inet.h>
39 # endif
40 #endif
41 #include <stdlib.h>
42 #include <string.h>
43 #include <errno.h>
44
45 #include "event2/event.h"
46 #include "event2/bufferevent.h"
47 #include "event2/buffer.h"
48 #include "event2/util.h"
49
50 const char *resource = NULL;
51 struct event_base *base = NULL;
52
53 int total_n_handled = 0;
54 int total_n_errors = 0;
55 int total_n_launched = 0;
56 size_t total_n_bytes = 0;
57 struct timeval total_time = {0,0};
58 int n_errors = 0;
59
60 const int PARALLELISM = 200;
61 const int N_REQUESTS = 20000;
62
63 struct request_info {
64 size_t n_read;
65 struct timeval started;
66 };
67
68 static int launch_request(void);
69 static void readcb(struct bufferevent *b, void *arg);
70 static void errorcb(struct bufferevent *b, short what, void *arg);
71
72 static void
readcb(struct bufferevent * b,void * arg)73 readcb(struct bufferevent *b, void *arg)
74 {
75 struct request_info *ri = arg;
76 struct evbuffer *input = bufferevent_get_input(b);
77 size_t n = evbuffer_get_length(input);
78
79 ri->n_read += n;
80 evbuffer_drain(input, n);
81 }
82
83 static void
errorcb(struct bufferevent * b,short what,void * arg)84 errorcb(struct bufferevent *b, short what, void *arg)
85 {
86 struct request_info *ri = arg;
87 struct timeval now, diff;
88 if (what & BEV_EVENT_EOF) {
89 ++total_n_handled;
90 total_n_bytes += ri->n_read;
91 evutil_gettimeofday(&now, NULL);
92 evutil_timersub(&now, &ri->started, &diff);
93 evutil_timeradd(&diff, &total_time, &total_time);
94
95 if (total_n_handled && (total_n_handled%1000)==0)
96 printf("%d requests done\n",total_n_handled);
97
98 if (total_n_launched < N_REQUESTS) {
99 if (launch_request() < 0)
100 perror("Can't launch");
101 }
102 } else {
103 ++total_n_errors;
104 perror("Unexpected error");
105 }
106
107 bufferevent_setcb(b, NULL, NULL, NULL, NULL);
108 free(ri);
109 bufferevent_disable(b, EV_READ|EV_WRITE);
110 bufferevent_free(b);
111 }
112
113 static void
frob_socket(evutil_socket_t sock)114 frob_socket(evutil_socket_t sock)
115 {
116 #ifdef EVENT__HAVE_STRUCT_LINGER
117 struct linger l;
118 #endif
119 int one = 1;
120 if (setsockopt(sock, SOL_SOCKET, SO_REUSEADDR, (void*)&one, sizeof(one))<0)
121 perror("setsockopt(SO_REUSEADDR)");
122 #ifdef EVENT__HAVE_STRUCT_LINGER
123 l.l_onoff = 1;
124 l.l_linger = 0;
125 if (setsockopt(sock, SOL_SOCKET, SO_LINGER, (void*)&l, sizeof(l))<0)
126 perror("setsockopt(SO_LINGER)");
127 #endif
128 }
129
130 static int
launch_request(void)131 launch_request(void)
132 {
133 evutil_socket_t sock;
134 struct sockaddr_in sin;
135 struct bufferevent *b;
136
137 struct request_info *ri;
138
139 memset(&sin, 0, sizeof(sin));
140
141 ++total_n_launched;
142
143 sin.sin_family = AF_INET;
144 sin.sin_addr.s_addr = htonl(0x7f000001);
145 sin.sin_port = htons(8080);
146 if ((sock = socket(AF_INET, SOCK_STREAM, 0)) < 0)
147 return -1;
148 if (evutil_make_socket_nonblocking(sock) < 0) {
149 evutil_closesocket(sock);
150 return -1;
151 }
152 frob_socket(sock);
153 if (connect(sock, (struct sockaddr*)&sin, sizeof(sin)) < 0) {
154 int e = evutil_socket_geterror(sock);
155 if (! EVUTIL_ERR_CONNECT_RETRIABLE(e)) {
156 evutil_closesocket(sock);
157 return -1;
158 }
159 }
160
161 ri = malloc(sizeof(*ri));
162 ri->n_read = 0;
163 evutil_gettimeofday(&ri->started, NULL);
164
165 b = bufferevent_socket_new(base, sock, BEV_OPT_CLOSE_ON_FREE);
166
167 bufferevent_setcb(b, readcb, NULL, errorcb, ri);
168 bufferevent_enable(b, EV_READ|EV_WRITE);
169
170 evbuffer_add_printf(bufferevent_get_output(b),
171 "GET %s HTTP/1.0\r\n\r\n", resource);
172
173 return 0;
174 }
175
176
177 int
main(int argc,char ** argv)178 main(int argc, char **argv)
179 {
180 int i;
181 struct timeval start, end, total;
182 long long usec;
183 double throughput;
184
185 #ifdef _WIN32
186 WSADATA WSAData;
187 WSAStartup(0x101, &WSAData);
188 #endif
189
190 resource = "/ref";
191
192 setvbuf(stdout, NULL, _IONBF, 0);
193
194 base = event_base_new();
195
196 for (i=0; i < PARALLELISM; ++i) {
197 if (launch_request() < 0)
198 perror("launch");
199 }
200
201 evutil_gettimeofday(&start, NULL);
202
203 event_base_dispatch(base);
204
205 evutil_gettimeofday(&end, NULL);
206 evutil_timersub(&end, &start, &total);
207 usec = total_time.tv_sec * (long long)1000000 + total_time.tv_usec;
208
209 if (!total_n_handled) {
210 puts("Nothing worked. You probably did something dumb.");
211 return 0;
212 }
213
214
215 throughput = total_n_handled /
216 (total.tv_sec+ ((double)total.tv_usec)/1000000.0);
217
218 #ifdef _WIN32
219 #define I64_FMT "%I64d"
220 #define I64_TYP __int64
221 #else
222 #define I64_FMT "%lld"
223 #define I64_TYP long long int
224 #endif
225
226 printf("\n%d requests in %d.%06d sec. (%.2f throughput)\n"
227 "Each took about %.02f msec latency\n"
228 I64_FMT "bytes read. %d errors.\n",
229 total_n_handled,
230 (int)total.tv_sec, (int)total.tv_usec,
231 throughput,
232 (double)(usec/1000) / total_n_handled,
233 (I64_TYP)total_n_bytes, n_errors);
234
235 #ifdef _WIN32
236 WSACleanup();
237 #endif
238
239 return 0;
240 }
241