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/*
* Asterisk -- An open source telephony toolkit.
*
* Copyright (C) 2007, Redfish Solutions
*
* Philip Prindeville <philipp@redfish-solutions.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 Sleep until the given epoch
*
* \author Philip Prindeville <philipp@redfish-solutions.com>
*
* \ingroup applications
*/
#include "asterisk.h"
ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
#include "asterisk/logger.h"
#include "asterisk/channel.h"
#include "asterisk/pbx.h"
#include "asterisk/module.h"
static char *app = "WaitUntil";
static char *synopsis = "Wait (sleep) until the current time is the given epoch";
static char *descrip =
" WaitUntil(<epoch>): Waits until the given time. Sets WAITUNTILSTATUS to\n"
"one of the following values:\n"
" OK Wait succeeded\n"
" FAILURE Invalid argument\n"
" HANGUP Channel hung up before time elapsed\n"
" PAST The time specified was already past\n";
static int waituntil_exec(struct ast_channel *chan, void *data)
{
int res;
double fraction;
struct timeval future = { 0, };
struct timeval tv = ast_tvnow();
int msec;
if (ast_strlen_zero(data)) {
ast_log(LOG_WARNING, "WaitUntil requires an argument(epoch)\n");
pbx_builtin_setvar_helper(chan, "WAITUNTILSTATUS", "FAILURE");
return 0;
}
if (sscanf(data, "%ld%lf", (long *)&future.tv_sec, &fraction) == 0) {
ast_log(LOG_WARNING, "WaitUntil called with non-numeric argument\n");
pbx_builtin_setvar_helper(chan, "WAITUNTILSTATUS", "FAILURE");
return 0;
}
future.tv_usec = fraction * 1000000;
if ((msec = ast_tvdiff_ms(future, tv)) < 0) {
ast_log(LOG_NOTICE, "WaitUntil called in the past (now %ld, arg %ld)\n", (long)tv.tv_sec, (long)future.tv_sec);
pbx_builtin_setvar_helper(chan, "WAITUNTILSTATUS", "PAST");
return 0;
}
if ((res = ast_safe_sleep(chan, msec)))
pbx_builtin_setvar_helper(chan, "WAITUNTILSTATUS", "HANGUP");
else
pbx_builtin_setvar_helper(chan, "WAITUNTILSTATUS", "OK");
return res;
}
static int unload_module(void)
{
return ast_unregister_application(app);
}
static int load_module(void)
{
return ast_register_application(app, waituntil_exec, synopsis, descrip);
}
AST_MODULE_INFO_STANDARD(ASTERISK_GPL_KEY, "Wait until specified time");