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	This commit introduces the first phase of an effort to manage documentation of the interfaces in Asterisk in an XML format. Currently, a new format is available for applications and dialplan functions. A good number of conversions to the new format are also included. For more information, see the following message to asterisk-dev: http://lists.digium.com/pipermail/asterisk-dev/2008-October/034968.html git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@153365 65c4cc65-6c06-0410-ace0-fbb531ad65f3
		
			
				
	
	
		
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			119 lines
		
	
	
		
			3.0 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
/*
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 * Asterisk -- An open source telephony toolkit.
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 *
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 * Copyright (C) 2007, Redfish Solutions
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 *
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 * Philip Prindeville <philipp@redfish-solutions.com>
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 *
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 * See http://www.asterisk.org for more information about
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 * the Asterisk project. Please do not directly contact
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 * any of the maintainers of this project for assistance;
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 * the project provides a web site, mailing lists and IRC
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 * channels for your use.
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 *
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 * This program is free software, distributed under the terms of
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 * the GNU General Public License Version 2. See the LICENSE file
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 * at the top of the source tree.
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 */
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/*! \file
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 *
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 * \brief Sleep until the given epoch
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 *
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 * \author Philip Prindeville <philipp@redfish-solutions.com>
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 *
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 * \ingroup applications
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 */
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#include "asterisk.h"
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ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
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#include "asterisk/logger.h"
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#include "asterisk/channel.h"
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#include "asterisk/pbx.h"
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#include "asterisk/module.h"
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/*** DOCUMENTATION
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	<application name="WaitUntil" language="en_US">
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		<synopsis>
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			Wait (sleep) until the current time is the given epoch.
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		</synopsis>
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		<syntax>
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			<parameter name="epoch" required="true" />
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		</syntax>
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		<description>
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			<para>Waits until the given <replaceable>epoch</replaceable>.</para>
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			<para>Sets <variable>WAITUNTILSTATUS</variable> to one of the following values:</para>
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			<variablelist>
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				<variable name="WAITUNTILSTATUS">
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					<value name="OK">
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						Wait succeeded.
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					</value>
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					<value name="FAILURE">
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						Invalid argument.
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					</value>
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					<value name="HANGUP">
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						Channel hungup before time elapsed.
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					</value>
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					<value name="PAST">
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						Time specified had already past.
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					</value>
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				</variable>
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			</variablelist>
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		</description>
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	</application>
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 ***/
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static char *app = "WaitUntil";
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static int waituntil_exec(struct ast_channel *chan, void *data)
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{
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	int res;
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	double fraction;
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	long seconds;
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	struct timeval future = { 0, };
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	struct timeval now = ast_tvnow();
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	int msec;
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	if (ast_strlen_zero(data)) {
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		ast_log(LOG_WARNING, "WaitUntil requires an argument(epoch)\n");
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		pbx_builtin_setvar_helper(chan, "WAITUNTILSTATUS", "FAILURE");
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		return 0;
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	}
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	if (sscanf(data, "%ld%lf", &seconds, &fraction) == 0) {
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		ast_log(LOG_WARNING, "WaitUntil called with non-numeric argument\n");
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		pbx_builtin_setvar_helper(chan, "WAITUNTILSTATUS", "FAILURE");
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		return 0;
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	}
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	future.tv_sec = seconds;
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	future.tv_usec = fraction * 1000000;
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	if ((msec = ast_tvdiff_ms(future, now)) < 0) {
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		ast_log(LOG_NOTICE, "WaitUntil called in the past (now %ld, arg %ld)\n", (long)now.tv_sec, (long)future.tv_sec);
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		pbx_builtin_setvar_helper(chan, "WAITUNTILSTATUS", "PAST");
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		return 0;
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	}
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	if ((res = ast_safe_sleep(chan, msec)))
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		pbx_builtin_setvar_helper(chan, "WAITUNTILSTATUS", "HANGUP");
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	else
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		pbx_builtin_setvar_helper(chan, "WAITUNTILSTATUS", "OK");
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	return res;
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}
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static int unload_module(void)
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{
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	return ast_unregister_application(app);
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}
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static int load_module(void)
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{
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	return ast_register_application_xml(app, waituntil_exec);
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}
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AST_MODULE_INFO_STANDARD(ASTERISK_GPL_KEY, "Wait until specified time");
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