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 "../util-internal.h"
28 #include "event2/event-config.h"
35 #include <sys/types.h>
37 #ifdef EVENT__HAVE_SYS_TIME_H
40 #ifdef EVENT__HAVE_SYS_SOCKET_H
41 #include <sys/socket.h>
52 struct timeval timeout = {3, 0};
55 closed_cb(evutil_socket_t fd, short event, void *arg)
57 if (EV_TIMEOUT & event) {
58 printf("%s: Timeout!\n", __func__);
62 if (EV_CLOSED & event) {
63 printf("%s: detected socket close with success\n", __func__);
67 printf("%s: unable to detect socket close\n", __func__);
72 main(int argc, char **argv)
74 struct event_base *base;
75 struct event_config *cfg;
77 const char *test = "test string";
78 evutil_socket_t pair[2];
80 /* Initialize the library and check if the backend
81 supports EV_FEATURE_EARLY_CLOSE
83 cfg = event_config_new();
84 event_config_require_features(cfg, EV_FEATURE_EARLY_CLOSE);
85 base = event_base_new_with_config(cfg);
86 event_config_free(cfg);
88 /* Backend doesn't support EV_FEATURE_EARLY_CLOSE */
92 /* Create a pair of sockets */
93 if (evutil_socketpair(AF_UNIX, SOCK_STREAM, 0, pair) == -1)
96 /* Send some data on socket 0 and immediately close it */
97 if (send(pair[0], test, (int)strlen(test)+1, 0) < 0)
99 shutdown(pair[0], EVUTIL_SHUT_WR);
102 ev = event_new(base, pair[1], EV_CLOSED | EV_TIMEOUT, closed_cb, event_self_cbarg());
103 event_add(ev, &timeout);
104 event_base_dispatch(base);
106 /* Finalize library */
107 event_base_free(base);