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authorMatthew Jordan <mjordan@digium.com>2013-07-25 04:06:32 +0000
committerMatthew Jordan <mjordan@digium.com>2013-07-25 04:06:32 +0000
commitcafc1158961f28ad54ebcdc5e042bf8094cbc620 (patch)
tree2e54d30ea5d8db7e007ff5c653c5acd4ed3fb649 /include/asterisk/bridging_features.h
parent9d8a5ceb02f6559940bd94aaf163a544ce6e6f4c (diff)
A great big renaming patch
This patch renames the bridging* files to bridge*. This may seem pedantic and silly, but it fits better in line with current Asterisk naming conventions: * channel is not "channeling" * monitor is not "monitoring" etc. A bridge is an object. It is a first class citizen in Asterisk. "Bridging" is the act of using a bridge on a set of channels - and the API that fulfills that role is more than just the action. (closes issue ASTERISK-22130) git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@395378 65c4cc65-6c06-0410-ace0-fbb531ad65f3
Diffstat (limited to 'include/asterisk/bridging_features.h')
-rw-r--r--include/asterisk/bridging_features.h798
1 files changed, 0 insertions, 798 deletions
diff --git a/include/asterisk/bridging_features.h b/include/asterisk/bridging_features.h
deleted file mode 100644
index 05fdf2587..000000000
--- a/include/asterisk/bridging_features.h
+++ /dev/null
@@ -1,798 +0,0 @@
-/*
- * Asterisk -- An open source telephony toolkit.
- *
- * Copyright (C) 2009, Digium, Inc.
- *
- * Joshua Colp <jcolp@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 Channel Bridging API
- * \author Joshua Colp <jcolp@digium.com>
- */
-
-#ifndef _ASTERISK_BRIDGING_FEATURES_H
-#define _ASTERISK_BRIDGING_FEATURES_H
-
-#if defined(__cplusplus) || defined(c_plusplus)
-extern "C" {
-#endif
-
-/*! \brief Flags used for bridge features */
-enum ast_bridge_feature_flags {
- /*! Upon channel hangup all bridge participants should be kicked out. */
- AST_BRIDGE_FLAG_DISSOLVE_HANGUP = (1 << 0),
- /*! The last channel to leave the bridge dissolves it. */
- AST_BRIDGE_FLAG_DISSOLVE_EMPTY = (1 << 1),
- /*! Move between bridging technologies as needed. */
- AST_BRIDGE_FLAG_SMART = (1 << 2),
- /*! Bridge channels cannot be merged from this bridge. */
- AST_BRIDGE_FLAG_MERGE_INHIBIT_FROM = (1 << 3),
- /*! Bridge channels cannot be merged to this bridge. */
- AST_BRIDGE_FLAG_MERGE_INHIBIT_TO = (1 << 4),
- /*! Bridge channels cannot be local channel swap optimized from this bridge. */
- AST_BRIDGE_FLAG_SWAP_INHIBIT_FROM = (1 << 5),
- /*! Bridge channels cannot be local channel swap optimized to this bridge. */
- AST_BRIDGE_FLAG_SWAP_INHIBIT_TO = (1 << 6),
- /*! Bridge channels can be moved to another bridge only by masquerade (ConfBridge) */
- AST_BRIDGE_FLAG_MASQUERADE_ONLY = (1 << 7),
- /*! Bridge does not allow transfers of channels out */
- AST_BRIDGE_FLAG_TRANSFER_PROHIBITED = (1 << 8),
- /*! Bridge transfers require transfer of entire bridge rather than individual channels */
- AST_BRIDGE_FLAG_TRANSFER_BRIDGE_ONLY = (1 << 9),
-};
-
-/*! \brief Flags used for per bridge channel features */
-enum ast_bridge_channel_feature_flags {
- /*! Upon channel hangup all bridge participants should be kicked out. */
- AST_BRIDGE_CHANNEL_FLAG_DISSOLVE_HANGUP = (1 << 0),
- /*! This channel leaves the bridge if all participants have this flag set. */
- AST_BRIDGE_CHANNEL_FLAG_LONELY = (1 << 1),
- /*! This channel cannot be moved to another bridge. */
- AST_BRIDGE_CHANNEL_FLAG_IMMOVABLE = (1 << 2),
-};
-
-/*! \brief Built in DTMF features */
-enum ast_bridge_builtin_feature {
- /*! DTMF based Blind Transfer */
- AST_BRIDGE_BUILTIN_BLINDTRANSFER,
- /*! DTMF based Attended Transfer */
- AST_BRIDGE_BUILTIN_ATTENDEDTRANSFER,
- /*!
- * DTMF based depart bridge feature
- *
- * \note Imparted channels are optionally hangup depending upon
- * how it was imparted.
- *
- * \note Joined channels exit the bridge with
- * BRIDGE_CHANNEL_STATE_END_WITH_DISSOLVE.
- */
- AST_BRIDGE_BUILTIN_HANGUP,
- /*!
- * DTMF based Park
- *
- * \details The bridge is parked and the channel hears the
- * parking slot to which it was parked.
- */
- AST_BRIDGE_BUILTIN_PARKCALL,
-/* BUGBUG does Monitor and/or MixMonitor require a two party bridge? MixMonitor is used by ConfBridge so maybe it doesn't. */
- /*!
- * DTMF one-touch-record toggle using Monitor app.
- *
- * \note Only valid on two party bridges.
- */
- AST_BRIDGE_BUILTIN_AUTOMON,
- /*!
- * DTMF one-touch-record toggle using MixMonitor app.
- *
- * \note Only valid on two party bridges.
- */
- AST_BRIDGE_BUILTIN_AUTOMIXMON,
-
- /*! End terminator for list of built in features. Must remain last. */
- AST_BRIDGE_BUILTIN_END
-};
-
-enum ast_bridge_builtin_interval {
- /*! Apply Call Duration Limits */
- AST_BRIDGE_BUILTIN_INTERVAL_LIMITS,
-
- /*! End terminator for list of built in interval features. Must remain last. */
- AST_BRIDGE_BUILTIN_INTERVAL_END
-};
-
-struct ast_bridge;
-struct ast_bridge_channel;
-
-/*!
- * \brief Hook callback type
- *
- * \param bridge The bridge that the channel is part of
- * \param bridge_channel Channel executing the feature
- * \param hook_pvt Private data passed in when the hook was created
- *
- * For interval hooks:
- * \retval 0 Setup to fire again at the last interval.
- * \retval positive Setup to fire again at the new interval returned.
- * \retval -1 Remove the callback hook.
- *
- * For other hooks:
- * \retval 0 Keep the callback hook.
- * \retval -1 Remove the callback hook.
- */
-typedef int (*ast_bridge_hook_callback)(struct ast_bridge *bridge, struct ast_bridge_channel *bridge_channel, void *hook_pvt);
-
-/*!
- * \brief Hook pvt destructor callback
- *
- * \param hook_pvt Private data passed in when the hook was created to destroy
- */
-typedef void (*ast_bridge_hook_pvt_destructor)(void *hook_pvt);
-
-/*!
- * \brief Talking indicator callback
- *
- * \details This callback can be registered with the bridge in order
- * to receive updates on when a bridge_channel has started and stopped
- * talking
- *
- * \param bridge_channel Channel executing the feature
- * \param talking TRUE if the channel is now talking
- *
- * \retval 0 Keep the callback hook.
- * \retval -1 Remove the callback hook.
- */
-typedef int (*ast_bridge_talking_indicate_callback)(struct ast_bridge_channel *bridge_channel, void *pvt_data, int talking);
-
-enum ast_bridge_hook_remove_flags {
- /*! The hook is removed when the channel is pulled from the bridge. */
- AST_BRIDGE_HOOK_REMOVE_ON_PULL = (1 << 0),
- /*! The hook is removed when the bridge's personality changes. */
- AST_BRIDGE_HOOK_REMOVE_ON_PERSONALITY_CHANGE = (1 << 1),
-};
-
-enum ast_bridge_hook_type {
- /*! The hook type has not been specified. */
- AST_BRIDGE_HOOK_TYPE_NONE,
- AST_BRIDGE_HOOK_TYPE_DTMF,
- AST_BRIDGE_HOOK_TYPE_TIMER,
- AST_BRIDGE_HOOK_TYPE_HANGUP,
- AST_BRIDGE_HOOK_TYPE_JOIN,
- AST_BRIDGE_HOOK_TYPE_LEAVE,
- AST_BRIDGE_HOOK_TYPE_TALK,
-};
-
-/* BUGBUG Need to be able to selectively remove DTMF, hangup, and interval hooks. */
-/*! \brief Structure that is the essence of a feature hook. */
-struct ast_bridge_hook {
- /*! Callback that is called when hook is tripped */
- ast_bridge_hook_callback callback;
- /*! Callback to destroy hook_pvt data right before destruction. */
- ast_bridge_hook_pvt_destructor destructor;
- /*! Unique data that was passed into us */
- void *hook_pvt;
- /*! Flags determining when hooks should be removed from a bridge channel */
- struct ast_flags remove_flags;
- /*! What kind of hook this is. */
- enum ast_bridge_hook_type type;
-};
-
-/*!
- * \brief Maximum length of a DTMF feature string
- */
-#define MAXIMUM_DTMF_FEATURE_STRING (11 + 1)
-
-/*! Extra parameters for a DTMF feature hook. */
-struct ast_bridge_hook_dtmf_parms {
- /*! DTMF String that is examined during a feature hook lookup */
- char code[MAXIMUM_DTMF_FEATURE_STRING];
-};
-
-/*! DTMF specific hook. */
-struct ast_bridge_hook_dtmf {
- /*! Generic feature hook information. */
- struct ast_bridge_hook generic;
- /*! Extra parameters for a DTMF feature hook. */
- struct ast_bridge_hook_dtmf_parms dtmf;
-};
-
-/*! Extra parameters for an interval timer hook. */
-struct ast_bridge_hook_timer_parms {
- /*! Time at which the hook should actually trip */
- struct timeval trip_time;
- /*! Heap index for interval hook */
- ssize_t heap_index;
- /*! Interval that the hook should execute at in milliseconds */
- unsigned int interval;
- /*! Sequence number for the hook to ensure expiration ordering */
- unsigned int seqno;
-};
-
-/*! Timer specific hook. */
-struct ast_bridge_hook_timer {
- /*! Generic feature hook information. */
- struct ast_bridge_hook generic;
- /*! Extra parameters for an interval timer hook. */
- struct ast_bridge_hook_timer_parms timer;
-};
-
-/*!
- * \brief Structure that contains features information
- */
-struct ast_bridge_features {
- /*! Attached DTMF feature hooks */
- struct ao2_container *dtmf_hooks;
- /*! Attached miscellaneous other hooks. */
- struct ao2_container *other_hooks;
- /*! Attached interval hooks */
- struct ast_heap *interval_hooks;
- /*! Limits feature data */
- struct ast_bridge_features_limits *limits;
- /*! Feature flags that are enabled */
- struct ast_flags feature_flags;
- /*! Used to assign the sequence number to the next interval hook added. */
- unsigned int interval_sequence;
- /*! TRUE if feature_flags is setup */
- unsigned int usable:1;
- /*! TRUE if the channel/bridge is muted. */
- unsigned int mute:1;
- /*! TRUE if DTMF should be passed into the bridge tech. */
- unsigned int dtmf_passthrough:1;
-};
-
-/*!
- * \brief Structure that contains configuration information for the blind transfer built in feature
- */
-struct ast_bridge_features_blind_transfer {
- /*! Context to use for transfers (If not empty.) */
- char context[AST_MAX_CONTEXT];
-};
-
-/*!
- * \brief Structure that contains configuration information for the attended transfer built in feature
- */
-struct ast_bridge_features_attended_transfer {
- /*! Context to use for transfers (If not empty.) */
- char context[AST_MAX_CONTEXT];
- /*! DTMF string used to abort the transfer (If not empty.) */
- char abort[MAXIMUM_DTMF_FEATURE_STRING];
- /*! DTMF string used to turn the transfer into a three way conference (If not empty.) */
- char threeway[MAXIMUM_DTMF_FEATURE_STRING];
- /*! DTMF string used to complete the transfer (If not empty.) */
- char complete[MAXIMUM_DTMF_FEATURE_STRING];
- /*! DTMF string used to swap bridged targets (If not empty.) */
- char swap[MAXIMUM_DTMF_FEATURE_STRING];
-};
-
-enum ast_bridge_features_monitor {
- /*! Toggle start/stop of Monitor/MixMonitor. */
- AUTO_MONITOR_TOGGLE,
- /*! Start Monitor/MixMonitor if not already started. */
- AUTO_MONITOR_START,
- /*! Stop Monitor/MixMonitor if not already stopped. */
- AUTO_MONITOR_STOP,
-};
-
-struct ast_bridge_features_automonitor {
- /*! Start/Stop behavior. */
- enum ast_bridge_features_monitor start_stop;
-};
-
-struct ast_bridge_features_automixmonitor {
- /*! Start/Stop behavior. */
- enum ast_bridge_features_monitor start_stop;
-};
-
-/*!
- * \brief Structure that contains configuration information for the limits feature
- */
-struct ast_bridge_features_limits {
- /*! Maximum duration that the channel is allowed to be in the bridge (specified in milliseconds) */
- unsigned int duration;
- /*! Duration into the call when warnings should begin (specified in milliseconds or 0 to disable) */
- unsigned int warning;
- /*! Interval between the warnings (specified in milliseconds or 0 to disable) */
- unsigned int frequency;
-
- AST_DECLARE_STRING_FIELDS(
- /*! Sound file to play when the maximum duration is reached (if empty, then nothing will be played) */
- AST_STRING_FIELD(duration_sound);
- /*! Sound file to play when the warning time is reached (if empty, then the remaining time will be played) */
- AST_STRING_FIELD(warning_sound);
- /*! Sound file to play when the call is first entered (if empty, then the remaining time will be played) */
- AST_STRING_FIELD(connect_sound);
- );
- /*! Time when the bridge will be terminated by the limits feature */
- struct timeval quitting_time;
-};
-
-/*!
- * \brief Register a handler for a built in feature
- *
- * \param feature The feature that the handler will be responsible for
- * \param callback The callback function that will handle it
- * \param dtmf Default DTMF string used to activate the feature
- *
- * \retval 0 on success
- * \retval -1 on failure
- *
- * Example usage:
- *
- * \code
- * ast_bridge_features_register(AST_BRIDGE_BUILTIN_ATTENDED_TRANSFER, bridge_builtin_attended_transfer, "*1");
- * \endcode
- *
- * This registers the function bridge_builtin_attended_transfer as the function responsible for the built in
- * attended transfer feature.
- */
-int ast_bridge_features_register(enum ast_bridge_builtin_feature feature, ast_bridge_hook_callback callback, const char *dtmf);
-
-/*!
- * \brief Unregister a handler for a built in feature
- *
- * \param feature The feature to unregister
- *
- * \retval 0 on success
- * \retval -1 on failure
- *
- * Example usage:
- *
- * \code
- * ast_bridge_features_unregister(AST_BRIDGE_BUILTIN_ATTENDED_TRANSFER);
- * \endcode
- *
- * This unregisters the function that is handling the built in attended transfer feature.
- */
-int ast_bridge_features_unregister(enum ast_bridge_builtin_feature feature);
-
-/*!
- * \brief Invoke a built in feature hook now.
- *
- * \param feature The feature to invoke
- *
- * \note This API call is only meant to be used by bridge
- * subclasses and hook callbacks to request a builtin feature
- * hook to be executed.
- *
- * \retval 0 on success
- * \retval -1 on failure
- *
- * Example usage:
- *
- * \code
- * ast_bridge_features_do(AST_BRIDGE_BUILTIN_ATTENDED_TRANSFER, bridge, bridge_channel, hook_pvt);
- * \endcode
- */
-int ast_bridge_features_do(enum ast_bridge_builtin_feature feature, struct ast_bridge *bridge, struct ast_bridge_channel *bridge_channel, void *hook_pvt);
-
-/*!
- * \brief Attach interval hooks to a bridge features structure
- *
- * \param features Bridge features structure
- * \param limits Configured limits applicable to the channel
- * \param remove_flags Dictates what situations the hook should be removed.
- *
- * \retval 0 on success
- * \retval -1 on failure
- */
-typedef int (*ast_bridge_builtin_set_limits_fn)(struct ast_bridge_features *features,
- struct ast_bridge_features_limits *limits, enum ast_bridge_hook_remove_flags remove_flags);
-
-/*!
- * \brief Register a handler for a built in interval feature
- *
- * \param interval The interval feature that the handler will be responsible for
- * \param callback the Callback function that will handle it
- *
- * \retval 0 on success
- * \retval -1 on failure
- *
- * Example usage:
- *
- * \code
- * ast_bridge_interval_register(AST_BRIDGE_BUILTIN_INTERVAL_LIMITS, bridge_builtin_set_limits);
- * \endcode
- *
- * This registers the function bridge_builtin_set_limits as the function responsible for the built in
- * duration limit feature.
- */
-int ast_bridge_interval_register(enum ast_bridge_builtin_interval interval, ast_bridge_builtin_set_limits_fn callback);
-
-/*!
- * \brief Unregisters a handler for a built in interval feature
- *
- * \param interval the interval feature to unregister
- *
- * \retval 0 on success
- * \retval -1 on failure
- *
- * Example usage:
- *
- * \code
- * ast_bridge_interval_unregister(AST_BRIDGE_BULTIN_INTERVAL_LIMITS)
- * /endcode
- *
- * This unregisters the function that is handling the built in duration limit feature.
- */
-int ast_bridge_interval_unregister(enum ast_bridge_builtin_interval interval);
-
-/*!
- * \brief Attach a bridge channel join hook to a bridge features structure
- *
- * \param features Bridge features structure
- * \param callback Function to execute upon activation
- * \param hook_pvt Unique data
- * \param destructor Optional destructor callback for hook_pvt data
- * \param remove_flags Dictates what situations the hook should be removed.
- *
- * \retval 0 on success
- * \retval -1 on failure (The caller must cleanup any hook_pvt resources.)
- *
- * Example usage:
- *
- * \code
- * struct ast_bridge_features features;
- * ast_bridge_features_init(&features);
- * ast_bridge_join_hook(&features, join_callback, NULL, NULL, 0);
- * \endcode
- *
- * This makes the bridging core call join_callback when a
- * channel successfully joins the bridging system. A pointer to
- * useful data may be provided to the hook_pvt parameter.
- */
-int ast_bridge_join_hook(struct ast_bridge_features *features,
- ast_bridge_hook_callback callback,
- void *hook_pvt,
- ast_bridge_hook_pvt_destructor destructor,
- enum ast_bridge_hook_remove_flags remove_flags);
-
-/*!
- * \brief Attach a bridge channel leave hook to a bridge features structure
- *
- * \param features Bridge features structure
- * \param callback Function to execute upon activation
- * \param hook_pvt Unique data
- * \param destructor Optional destructor callback for hook_pvt data
- * \param remove_flags Dictates what situations the hook should be removed.
- *
- * \retval 0 on success
- * \retval -1 on failure (The caller must cleanup any hook_pvt resources.)
- *
- * Example usage:
- *
- * \code
- * struct ast_bridge_features features;
- * ast_bridge_features_init(&features);
- * ast_bridge_leave_hook(&features, leave_callback, NULL, NULL, 0);
- * \endcode
- *
- * This makes the bridging core call leave_callback when a
- * channel successfully leaves the bridging system. A pointer
- * to useful data may be provided to the hook_pvt parameter.
- */
-int ast_bridge_leave_hook(struct ast_bridge_features *features,
- ast_bridge_hook_callback callback,
- void *hook_pvt,
- ast_bridge_hook_pvt_destructor destructor,
- enum ast_bridge_hook_remove_flags remove_flags);
-
-/*!
- * \brief Attach a hangup hook to a bridge features structure
- *
- * \param features Bridge features structure
- * \param callback Function to execute upon activation
- * \param hook_pvt Unique data
- * \param destructor Optional destructor callback for hook_pvt data
- * \param remove_flags Dictates what situations the hook should be removed.
- *
- * \retval 0 on success
- * \retval -1 on failure (The caller must cleanup any hook_pvt resources.)
- *
- * Example usage:
- *
- * \code
- * struct ast_bridge_features features;
- * ast_bridge_features_init(&features);
- * ast_bridge_hangup_hook(&features, hangup_callback, NULL, NULL, 0);
- * \endcode
- *
- * This makes the bridging core call hangup_callback if a
- * channel that has this hook hangs up. A pointer to useful
- * data may be provided to the hook_pvt parameter.
- */
-int ast_bridge_hangup_hook(struct ast_bridge_features *features,
- ast_bridge_hook_callback callback,
- void *hook_pvt,
- ast_bridge_hook_pvt_destructor destructor,
- enum ast_bridge_hook_remove_flags remove_flags);
-
-/*!
- * \brief Attach a DTMF hook to a bridge features structure
- *
- * \param features Bridge features structure
- * \param dtmf DTMF string to be activated upon
- * \param callback Function to execute upon activation
- * \param hook_pvt Unique data
- * \param destructor Optional destructor callback for hook_pvt data
- * \param remove_flags Dictates what situations the hook should be removed.
- *
- * \retval 0 on success
- * \retval -1 on failure (The caller must cleanup any hook_pvt resources.)
- *
- * Example usage:
- *
- * \code
- * struct ast_bridge_features features;
- * ast_bridge_features_init(&features);
- * ast_bridge_dtmf_hook(&features, "#", pound_callback, NULL, NULL, 0);
- * \endcode
- *
- * This makes the bridging core call pound_callback if a channel that has this
- * feature structure inputs the DTMF string '#'. A pointer to useful data may be
- * provided to the hook_pvt parameter.
- */
-int ast_bridge_dtmf_hook(struct ast_bridge_features *features,
- const char *dtmf,
- ast_bridge_hook_callback callback,
- void *hook_pvt,
- ast_bridge_hook_pvt_destructor destructor,
- enum ast_bridge_hook_remove_flags remove_flags);
-
-/*!
- * \brief Attach an interval hook to a bridge features structure
- *
- * \param features Bridge features structure
- * \param interval The interval that the hook should execute at in milliseconds
- * \param callback Function to execute upon activation
- * \param hook_pvt Unique data
- * \param destructor Optional destructor callback for hook_pvt data
- * \param remove_flags Dictates what situations the hook should be removed.
- *
- * \retval 0 on success
- * \retval -1 on failure (The caller must cleanup any hook_pvt resources.)
- *
- * \code
- * struct ast_bridge_features features;
- * ast_bridge_features_init(&features);
- * ast_bridge_interval_hook(&features, 1000, playback_callback, NULL, NULL, 0);
- * \endcode
- *
- * This makes the bridging core call playback_callback every second. A pointer to useful
- * data may be provided to the hook_pvt parameter.
- */
-int ast_bridge_interval_hook(struct ast_bridge_features *features,
- unsigned int interval,
- ast_bridge_hook_callback callback,
- void *hook_pvt,
- ast_bridge_hook_pvt_destructor destructor,
- enum ast_bridge_hook_remove_flags remove_flags);
-
-/*!
- * \brief Attach a bridge channel talk detection hook to a bridge features structure
- *
- * \param features Bridge features structure
- * \param callback Function to execute upon activation
- * \param hook_pvt Unique data
- * \param destructor Optional destructor callback for hook_pvt data
- * \param remove_flags Dictates what situations the hook should be removed.
- *
- * \retval 0 on success
- * \retval -1 on failure (The caller must cleanup any hook_pvt resources.)
- *
- * Example usage:
- *
- * \code
- * struct ast_bridge_features features;
- * ast_bridge_features_init(&features);
- * ast_bridge_talk_hook(&features, talk_callback, NULL, NULL, 0);
- * \endcode
- *
- * This makes the bridging technology call talk_callback when a
- * channel is recognized as starting and stopping talking. A
- * pointer to useful data may be provided to the hook_pvt
- * parameter.
- *
- * \note This hook is currently only supported by softmix.
- */
-int ast_bridge_talk_detector_hook(struct ast_bridge_features *features,
- ast_bridge_talking_indicate_callback callback,
- void *hook_pvt,
- ast_bridge_hook_pvt_destructor destructor,
- enum ast_bridge_hook_remove_flags remove_flags);
-
-/*!
- * \brief Enable a built in feature on a bridge features structure
- *
- * \param features Bridge features structure
- * \param feature Feature to enable
- * \param dtmf Optionally the DTMF stream to trigger the feature, if not specified it will be the default
- * \param config Configuration structure unique to the built in type
- * \param destructor Optional destructor callback for config data
- * \param remove_flags Dictates what situations the hook should be removed.
- *
- * \retval 0 on success
- * \retval -1 on failure
- *
- * Example usage:
- *
- * \code
- * struct ast_bridge_features features;
- * ast_bridge_features_init(&features);
- * ast_bridge_features_enable(&features, AST_BRIDGE_BUILTIN_ATTENDEDTRANSFER, NULL, NULL, 0);
- * \endcode
- *
- * This enables the attended transfer DTMF option using the default DTMF string. An alternate
- * string may be provided using the dtmf parameter. Internally this is simply setting up a hook
- * to a built in feature callback function.
- */
-int ast_bridge_features_enable(struct ast_bridge_features *features,
- enum ast_bridge_builtin_feature feature,
- const char *dtmf,
- void *config,
- ast_bridge_hook_pvt_destructor destructor,
- enum ast_bridge_hook_remove_flags remove_flags);
-
-/*!
- * \brief Constructor function for ast_bridge_features_limits
- *
- * \param limits pointer to a ast_bridge_features_limits struct that has been allocted, but not initialized
- *
- * \retval 0 on success
- * \retval -1 on failure
- */
-int ast_bridge_features_limits_construct(struct ast_bridge_features_limits *limits);
-
-/*!
- * \brief Destructor function for ast_bridge_features_limits
- *
- * \param limits pointer to an ast_bridge_features_limits struct that needs to be destroyed
- *
- * This function does not free memory allocated to the ast_bridge_features_limits struct, it only frees elements within the struct.
- * You must still call ast_free on the the struct if you allocated it with malloc.
- */
-void ast_bridge_features_limits_destroy(struct ast_bridge_features_limits *limits);
-
-/*!
- * \brief Limit the amount of time a channel may stay in the bridge and optionally play warning messages as time runs out
- *
- * \param features Bridge features structure
- * \param limits Configured limits applicable to the channel
- * \param remove_flags Dictates what situations the hook should be removed.
- *
- * \retval 0 on success
- * \retval -1 on failure
- *
- * Example usage:
- *
- * \code
- * struct ast_bridge_features features;
- * struct ast_bridge_features_limits limits;
- * ast_bridge_features_init(&features);
- * ast_bridge_features_limits_construct(&limits);
- * ast_bridge_features_set_limits(&features, &limits, 0);
- * ast_bridge_features_limits_destroy(&limits);
- * \endcode
- *
- * This sets the maximum time the channel can be in the bridge to 10 seconds and does not play any warnings.
- *
- * \note This API call can only be used on a features structure that will be used in association with a bridge channel.
- * \note The ast_bridge_features_limits structure must remain accessible for the lifetime of the features structure.
- */
-int ast_bridge_features_set_limits(struct ast_bridge_features *features, struct ast_bridge_features_limits *limits, enum ast_bridge_hook_remove_flags remove_flags);
-
-/*!
- * \brief Set a flag on a bridge channel features structure
- *
- * \param features Bridge channel features structure
- * \param flag Flag to enable
- *
- * \return Nothing
- *
- * Example usage:
- *
- * \code
- * struct ast_bridge_features features;
- * ast_bridge_features_init(&features);
- * ast_bridge_features_set_flag(&features, AST_BRIDGE_CHANNEL_FLAG_DISSOLVE_HANGUP);
- * \endcode
- *
- * This sets the AST_BRIDGE_CHANNEL_FLAG_DISSOLVE_HANGUP feature
- * to be enabled on the features structure 'features'.
- */
-void ast_bridge_features_set_flag(struct ast_bridge_features *features, unsigned int flag);
-
-/*!
- * \brief Initialize bridge features structure
- *
- * \param features Bridge featues structure
- *
- * \retval 0 on success
- * \retval -1 on failure
- *
- * Example usage:
- *
- * \code
- * struct ast_bridge_features features;
- * ast_bridge_features_init(&features);
- * \endcode
- *
- * This initializes the feature structure 'features' to have nothing enabled.
- *
- * \note This MUST be called before enabling features or flags. Failure to do so
- * may result in a crash.
- */
-int ast_bridge_features_init(struct ast_bridge_features *features);
-
-/*!
- * \brief Clean up the contents of a bridge features structure
- *
- * \param features Bridge features structure
- *
- * \return Nothing
- *
- * Example usage:
- *
- * \code
- * struct ast_bridge_features features;
- * ast_bridge_features_init(&features);
- * ast_bridge_features_cleanup(&features);
- * \endcode
- *
- * This cleans up the feature structure 'features'.
- *
- * \note This MUST be called after the features structure is done being used
- * or a memory leak may occur.
- */
-void ast_bridge_features_cleanup(struct ast_bridge_features *features);
-
-/*!
- * \brief Allocate a new bridge features struct.
- * \since 12.0.0
- *
- * Example usage:
- *
- * \code
- * struct ast_bridge_features *features;
- * features = ast_bridge_features_new();
- * ast_bridge_features_destroy(features);
- * \endcode
- *
- * \retval features New allocated features struct.
- * \retval NULL on error.
- */
-struct ast_bridge_features *ast_bridge_features_new(void);
-
-/*!
- * \brief Destroy an allocated bridge features struct.
- * \since 12.0.0
- *
- * \param features Bridge features structure
- *
- * Example usage:
- *
- * \code
- * struct ast_bridge_features *features;
- * features = ast_bridge_features_new();
- * ast_bridge_features_destroy(features);
- * \endcode
- *
- * \return Nothing
- */
-void ast_bridge_features_destroy(struct ast_bridge_features *features);
-
-#if defined(__cplusplus) || defined(c_plusplus)
-}
-#endif
-
-#endif /* _ASTERISK_BRIDGING_FEATURES_H */