2 * Copyright (c) 2002-2007 Niels Provos <provos@citi.umich.edu>
3 * Copyright (c) 2007-2013 Niels Provos and Nick Mathewson
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
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. The name of the author may not be used to endorse or promote products
14 * derived from this software without specific prior written permission.
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.
27 #include "event2/event-config.h"
34 #include <sys/types.h>
36 #ifdef EVENT__HAVE_SYS_TIME_H
39 #ifdef EVENT__HAVE_SYS_SOCKET_H
40 #include <sys/socket.h>
51 #ifdef EVENT____func__
52 #define __func__ EVENT____func__
55 struct timeval timeout = {3, 0};
58 closed_cb(evutil_socket_t fd, short event, void *arg)
60 if (EV_TIMEOUT & event) {
61 printf("%s: Timeout!\n", __func__);
65 if (EV_CLOSED & event) {
66 printf("%s: detected socket close with success\n", __func__);
70 printf("%s: unable to detect socket close\n", __func__);
79 main(int argc, char **argv)
81 struct event_base *base;
82 struct event_config *cfg;
84 const char *test = "test string";
85 evutil_socket_t pair[2];
87 /* Initialize the library and check if the backend
88 supports EV_FEATURE_EARLY_CLOSE
90 cfg = event_config_new();
91 event_config_require_features(cfg, EV_FEATURE_EARLY_CLOSE);
92 base = event_base_new_with_config(cfg);
93 event_config_free(cfg);
95 /* Backend doesn't support EV_FEATURE_EARLY_CLOSE */
99 /* Create a pair of sockets */
100 if (evutil_socketpair(AF_UNIX, SOCK_STREAM, 0, pair) == -1)
103 /* Send some data on socket 0 and immediately close it */
104 if (send(pair[0], test, (int)strlen(test)+1, 0) < 0)
106 shutdown(pair[0], SHUT_WR);
109 ev = event_new(base, pair[1], EV_CLOSED | EV_TIMEOUT, closed_cb, event_self_cbarg());
110 event_add(ev, &timeout);
111 event_base_dispatch(base);
113 /* Finalize library */
114 event_base_free(base);