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Diffstat (limited to 'trunk/apps/app_waitforring.c')
-rw-r--r-- | trunk/apps/app_waitforring.c | 117 |
1 files changed, 117 insertions, 0 deletions
diff --git a/trunk/apps/app_waitforring.c b/trunk/apps/app_waitforring.c new file mode 100644 index 000000000..b4248fee9 --- /dev/null +++ b/trunk/apps/app_waitforring.c @@ -0,0 +1,117 @@ +/* + * Asterisk -- An open source telephony toolkit. + * + * Copyright (C) 1999 - 2005, Digium, Inc. + * + * Mark Spencer <markster@digium.com> + * + * See http://www.asterisk.org for more information about + * the Asterisk project. Please do not directly contact + * any of the maintainers of this project for assistance; + * the project provides a web site, mailing lists and IRC + * channels for your use. + * + * This program is free software, distributed under the terms of + * the GNU General Public License Version 2. See the LICENSE file + * at the top of the source tree. + */ + +/*! \file + * + * \brief Wait for Ring Application + * + * \author Mark Spencer <markster@digium.com> + * + * \ingroup applications + */ + +#include "asterisk.h" + +ASTERISK_FILE_VERSION(__FILE__, "$Revision$") + +#include "asterisk/file.h" +#include "asterisk/channel.h" +#include "asterisk/pbx.h" +#include "asterisk/module.h" +#include "asterisk/lock.h" + +static char *synopsis = "Wait for Ring Application"; + +static char *desc = " WaitForRing(timeout):\n" +"Returns 0 after waiting at least timeout seconds. and\n" +"only after the next ring has completed. Returns 0 on\n" +"success or -1 on hangup\n"; + +static char *app = "WaitForRing"; + + +static int waitforring_exec(struct ast_channel *chan, void *data) +{ + struct ast_frame *f; + int res = 0; + double s; + int ms; + + if (!data || (sscanf(data, "%lg", &s) != 1)) { + ast_log(LOG_WARNING, "WaitForRing requires an argument (minimum seconds)\n"); + return 0; + } + + ms = s*1000.0; + while(ms > 0) { + ms = ast_waitfor(chan, ms); + if (ms < 0) { + res = ms; + break; + } + if (ms > 0) { + f = ast_read(chan); + if (!f) { + res = -1; + break; + } + if ((f->frametype == AST_FRAME_CONTROL) && (f->subclass == AST_CONTROL_RING)) { + ast_verb(3, "Got a ring but still waiting for timeout\n"); + } + ast_frfree(f); + } + } + /* Now we're really ready for the ring */ + if (!res) { + ms = 99999999; + while(ms > 0) { + ms = ast_waitfor(chan, ms); + if (ms < 0) { + res = ms; + break; + } + if (ms > 0) { + f = ast_read(chan); + if (!f) { + res = -1; + break; + } + if ((f->frametype == AST_FRAME_CONTROL) && (f->subclass == AST_CONTROL_RING)) { + ast_verb(3, "Got a ring after the timeout\n"); + ast_frfree(f); + break; + } + ast_frfree(f); + } + } + } + + return res; +} + +static int unload_module(void) +{ + return ast_unregister_application(app); +} + +static int load_module(void) +{ + return ast_register_application(app, waitforring_exec, synopsis, desc); +} + +AST_MODULE_INFO_STANDARD(ASTERISK_GPL_KEY, "Waits until first ring after time"); |