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/*
* 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 Call Parking and Pickup API
* Includes code and algorithms from the Zapata library.
*/
#ifndef _AST_FEATURES_H
#define _AST_FEATURES_H
#include "asterisk/pbx.h"
#include "asterisk/linkedlists.h"
#include "asterisk/bridge.h"
/*! \brief main call feature structure */
enum {
AST_FEATURE_FLAG_NEEDSDTMF = (1 << 0),
AST_FEATURE_FLAG_ONPEER = (1 << 1),
AST_FEATURE_FLAG_ONSELF = (1 << 2),
AST_FEATURE_FLAG_BYCALLEE = (1 << 3),
AST_FEATURE_FLAG_BYCALLER = (1 << 4),
AST_FEATURE_FLAG_BYBOTH = (3 << 3),
};
/*!
* \brief Bridge a call, optionally allowing redirection
*
* \note The function caller is assumed to have already done the
* COLP exchange for the initial bridging of the two channels if
* it was desired.
*/
int ast_bridge_call(struct ast_channel *chan, struct ast_channel *peer, struct ast_bridge_config *config);
/*!
* \brief Bridge a call, and add additional flags to the bridge
*
* \details
* This does the same thing as \ref ast_bridge_call, except that once the bridge
* is created, the provided flags are set on the bridge. The provided flags are
* added to the bridge's flags; they will not clear any flags already set.
*
* \param chan The calling channel
* \param peer The called channel
* \param config Bridge configuration for the channels
* \param flags Additional flags to set on the created bridge
*
* \note The function caller is assumed to have already done the
* COLP exchange for the initial bridging of the two channels if
* it was desired.
*/
int ast_bridge_call_with_flags(struct ast_channel *chan, struct ast_channel *peer, struct ast_bridge_config *config, unsigned int flags);
/*!
* \brief Add an arbitrary channel to a bridge
* \since 12.0.0
*
* \details
* The channel that is being added to the bridge can be in any state: unbridged,
* bridged, answered, unanswered, etc. The channel will be added asynchronously,
* meaning that when this function returns once the channel has been added to
* the bridge, not once the channel has been removed from the bridge.
*
* In addition, a tone can optionally be played to the channel once the
* channel is placed into the bridge.
*
* \note When this function returns, there is no guarantee that the channel that
* was passed in is valid any longer. Do not attempt to operate on the channel
* after this function returns.
*
* \param bridge Bridge to which the channel should be added
* \param chan The channel to add to the bridge
* \param features Features for this channel in the bridge
* \param play_tone Indicates if a tone should be played to the channel
* \param xfersound Sound that should be used to indicate transfer with play_tone
*
* \note The features parameter must be NULL or obtained by
* ast_bridge_features_new(). You must not dereference features
* after calling even if the call fails.
*
* \retval 0 Success
* \retval -1 Failure
*/
int ast_bridge_add_channel(struct ast_bridge *bridge, struct ast_channel *chan,
struct ast_bridge_features *features, int play_tone, const char *xfersound);
/*!
* \brief parse L option and read associated channel variables to set warning, warning frequency, and timelimit
* \note caller must be aware of freeing memory for warning_sound, end_sound, and start_sound
*/
int ast_bridge_timelimit(struct ast_channel *chan, struct ast_bridge_config *config, char *parse, struct timeval *calldurationlimit);
#endif /* _AST_FEATURES_H */
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