2 * Asterisk -- An open source telephony toolkit.
4 * Copyright (C) 1999 - 2005, Digium, Inc.
6 * Mark Spencer <markster@digium.com>
8 * See http://www.asterisk.org for more information about
9 * the Asterisk project. Please do not directly contact
10 * any of the maintainers of this project for assistance;
11 * the project provides a web site, mailing lists and IRC
12 * channels for your use.
14 * This program is free software, distributed under the terms of
15 * the GNU General Public License Version 2. See the LICENSE file
16 * at the top of the source tree.
21 * \brief Wait for Ring Application
23 * \author Mark Spencer <markster@digium.com>
25 * \ingroup applications
30 ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
36 #include <sys/types.h>
38 #include "asterisk/file.h"
39 #include "asterisk/logger.h"
40 #include "asterisk/channel.h"
41 #include "asterisk/pbx.h"
42 #include "asterisk/module.h"
43 #include "asterisk/options.h"
44 #include "asterisk/lock.h"
46 static char *synopsis = "Wait for Ring Application";
48 static char *desc = " WaitForRing(timeout)\n"
49 "Returns 0 after waiting at least timeout seconds. and\n"
50 "only after the next ring has completed. Returns 0 on\n"
51 "success or -1 on hangup\n";
53 static char *app = "WaitForRing";
56 static int waitforring_exec(struct ast_channel *chan, void *data)
63 if (!data || (sscanf(data, "%lg", &s) != 1)) {
64 ast_log(LOG_WARNING, "WaitForRing requires an argument (minimum seconds)\n");
70 ms = ast_waitfor(chan, ms);
81 if ((f->frametype == AST_FRAME_CONTROL) && (f->subclass == AST_CONTROL_RING)) {
82 ast_verb(3, "Got a ring but still waiting for timeout\n");
87 /* Now we're really ready for the ring */
91 ms = ast_waitfor(chan, ms);
102 if ((f->frametype == AST_FRAME_CONTROL) && (f->subclass == AST_CONTROL_RING)) {
103 ast_verb(3, "Got a ring after the timeout\n");
115 static int unload_module(void)
117 return ast_unregister_application(app);
120 static int load_module(void)
122 return ast_register_application(app, waitforring_exec, synopsis, desc);
125 AST_MODULE_INFO_STANDARD(ASTERISK_GPL_KEY, "Waits until first ring after time");