stasis_app.h File Reference

Stasis Application API. See Stasis Application API for detailed documentation. More...

#include "asterisk/channel.h"

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Data Structures
struct	stasis_app_control_rule
	Rule to check to see if an operation is allowed. More...
struct	stasis_app_event_source
	Event source information and callbacks. More...
typedef void(*	stasis_app_cb) (void *data, const char *app_name, struct ast_json *message)
	Callback for Stasis application handler. More...
struct ao2_container *	stasis_app_get_all (void)
	Gets the names of all registered Stasis applications. More...
struct stasis_app *	stasis_app_get_by_name (const char *name)
	Retrieve a handle to a Stasis application by its name. More...
int	stasis_app_is_registered (const char *name)
	Check if a Stasis application is registered. More...
const char *	stasis_app_name (const struct stasis_app *app)
	Retrieve an application's name. More...
struct ast_json *	stasis_app_object_to_json (struct stasis_app *app)
	Return the JSON representation of a Stasis application. More...
int	stasis_app_register (const char *app_name, stasis_app_cb handler, void *data)
	Register a new Stasis application. More...
int	stasis_app_register_all (const char *app_name, stasis_app_cb handler, void *data)
	Register a new Stasis application that receives all Asterisk events. More...
void	stasis_app_register_event_source (struct stasis_app_event_source *obj)
	Register an application event source. More...
void	stasis_app_register_event_sources (void)
	Register core event sources. More...
int	stasis_app_send (const char *app_name, struct ast_json *message)
	Send a message to the given Stasis application. More...
enum stasis_app_subscribe_res	stasis_app_subscribe (const char *app_name, const char **event_source_uris, int event_sources_count, struct ast_json **json)
	Subscribes an application to a list of event sources. More...
enum stasis_app_subscribe_res	stasis_app_subscribe_channel (const char *app_name, struct ast_channel *chan)
	Directly subscribe an application to a channel. More...
enum	stasis_app_subscribe_res {   STASIS_ASR_OK , STASIS_ASR_APP_NOT_FOUND , STASIS_ASR_EVENT_SOURCE_NOT_FOUND , STASIS_ASR_EVENT_SOURCE_BAD_SCHEME ,   STASIS_ASR_INTERNAL_ERROR }
	Return code for stasis_app_[un]subscribe. More...
struct ast_json *	stasis_app_to_json (const char *app_name)
	Return the JSON representation of a Stasis application. More...
void	stasis_app_unregister (const char *app_name)
	Unregister a Stasis application and unsubscribe from all event sources. More...
void	stasis_app_unregister_event_source (struct stasis_app_event_source *obj)
	Unregister an application event source. More...
void	stasis_app_unregister_event_sources (void)
	Unregister core event sources. More...
enum stasis_app_subscribe_res	stasis_app_unsubscribe (const char *app_name, const char **event_source_uris, int event_sources_count, struct ast_json **json)
	Unsubscribes an application from a list of event sources. More...
enum stasis_app_user_event_res	stasis_app_user_event (const char *app_name, const char *event_name, const char **source_uris, int sources_count, struct ast_json *json_variables)
	Generate a Userevent for stasis app (echo to AMI) More...
enum	stasis_app_user_event_res {   STASIS_APP_USER_OK , STASIS_APP_USER_APP_NOT_FOUND , STASIS_APP_USER_EVENT_SOURCE_NOT_FOUND , STASIS_APP_USER_EVENT_SOURCE_BAD_SCHEME ,   STASIS_APP_USER_USEREVENT_INVALID , STASIS_APP_USER_INTERNAL_ERROR }
	Return code for stasis_app_user_event. More...
struct stasis_topic *	ast_app_get_topic (struct stasis_app *app)
	Returns the stasis topic for an app. More...
struct ast_bridge *	stasis_app_bridge_create (const char *type, const char *name, const char *id)
	Create a bridge of the specified type. More...
struct ast_bridge *	stasis_app_bridge_create_invisible (const char *type, const char *name, const char *id)
	Create an invisible bridge of the specified type. More...
void	stasis_app_bridge_destroy (const char *bridge_id)
	Destroy the bridge. More...
struct ast_bridge *	stasis_app_bridge_find_by_id (const char *bridge_id)
	Returns the bridge with the given id. More...
struct ast_channel *	stasis_app_bridge_moh_channel (struct ast_bridge *bridge)
	Finds or creates an announcer channel in a bridge that can play music on hold. More...
int	stasis_app_bridge_moh_stop (struct ast_bridge *bridge)
	Breaks down MOH channels playing on the bridge created by stasis_app_bridge_moh_channel. More...
int	stasis_app_bridge_playback_channel_add (struct ast_bridge *bridge, struct ast_channel *chan, struct stasis_app_control *control)
	Adds a channel to the list of ARI playback channels for bridges. More...
struct ast_channel *	stasis_app_bridge_playback_channel_find (struct ast_bridge *bridge)
	Finds an existing ARI playback channel in a bridge. More...
void	stasis_app_bridge_playback_channel_remove (char *bridge_id, struct stasis_app_control *control)
	remove channel from list of ARI playback channels for bridges. More...
int	stasis_app_channel_is_internal (struct ast_channel *chan)
	Is this channel internal to Stasis? More...
int	stasis_app_channel_is_stasis_end_published (struct ast_channel *chan)
	Has this channel had a StasisEnd published on it? More...
int	stasis_app_channel_set_internal (struct ast_channel *chan)
	Mark this channel as being internal to Stasis. More...
void	stasis_app_channel_set_stasis_end_published (struct ast_channel *chan)
	Indicate that this channel has had a StasisEnd published for it. More...
int	stasis_app_channel_unreal_set_internal (struct ast_channel *chan)
	Mark this unreal channel and it's other half as being internal to Stasis. More...
void	stasis_app_control_absorb_dtmf_in_bridge (struct stasis_app_control *control, int absorb)
	Set whether DTMF from the channel is absorbed instead of passing through to the bridge. More...
int	stasis_app_control_add_channel_to_bridge (struct stasis_app_control *control, struct ast_bridge *bridge)
	Add a channel to the bridge. More...
int	stasis_app_control_add_role (struct stasis_app_control *control, const char *role)
	Apply a bridge role to a channel controlled by a stasis app control. More...
int	stasis_app_control_answer (struct stasis_app_control *control)
	Answer the channel associated with this control. More...
int	stasis_app_control_bridge_features_init (struct stasis_app_control *control)
	Initialize bridge features into a channel control. More...
enum	stasis_app_control_channel_result { STASIS_APP_CHANNEL_OKAY = 0 , STASIS_APP_CHANNEL_RECORDING }
	Result codes used when adding/removing channels to/from bridges. More...
void	stasis_app_control_clear_roles (struct stasis_app_control *control)
	Clear bridge roles currently applied to a channel controlled by a stasis app control. More...
int	stasis_app_control_continue (struct stasis_app_control *control, const char *context, const char *extension, int priority)
	Exit res_stasis and continue execution in the dialplan. More...
struct stasis_app_control *	stasis_app_control_create (struct ast_channel *chan)
	Creates a control handler for a channel that isn't in a stasis app. More...
int	stasis_app_control_dial (struct stasis_app_control *control, const char *dialstring, unsigned int timeout)
	Dial a channel. More...
int	stasis_app_control_dtmf (struct stasis_app_control *control, const char *dtmf, int before, int between, unsigned int duration, int after)
	Send DTMF to the channel associated with this control. More...
void	stasis_app_control_execute_until_exhausted (struct ast_channel *chan, struct stasis_app_control *control)
	Act on a stasis app control queue until it is empty. More...
struct stasis_app_control *	stasis_app_control_find_by_channel (const struct ast_channel *chan)
	Returns the handler for the given channel. More...
struct stasis_app_control *	stasis_app_control_find_by_channel_id (const char *channel_id)
	Returns the handler for the channel with the given id. More...
void	stasis_app_control_flush_queue (struct stasis_app_control *control)
	Flush the control command queue. More...
const char *	stasis_app_control_get_channel_id (const struct stasis_app_control *control)
	Returns the uniqueid of the channel associated with this control. More...
struct ast_channel_snapshot *	stasis_app_control_get_snapshot (const struct stasis_app_control *control)
	Returns the most recent snapshot for the associated channel. More...
void	stasis_app_control_hold (struct stasis_app_control *control)
	Place the channel associated with the control on hold. More...
void	stasis_app_control_inhibit_colp_in_bridge (struct stasis_app_control *control, int inhibit_colp)
	Set whether COLP frames should be generated when joining the bridge. More...
int	stasis_app_control_is_done (struct stasis_app_control *control)
	Check if a control is marked as done. More...
int	stasis_app_control_is_failed (const struct stasis_app_control *control)
	Check if a control object is marked as "failed". More...
void	stasis_app_control_mark_failed (struct stasis_app_control *control)
	Set the failed flag on a control structure. More...
void	stasis_app_control_moh_start (struct stasis_app_control *control, const char *moh_class)
	Play music on hold to a channel (does not affect hold status) More...
void	stasis_app_control_moh_stop (struct stasis_app_control *control)
	Stop playing music on hold to a channel (does not affect hold status) More...
int	stasis_app_control_move (struct stasis_app_control *control, const char *app_name, const char *app_args)
	Exit res_stasis and move to another Stasis application. More...
int	stasis_app_control_mute (struct stasis_app_control *control, unsigned int direction, enum ast_frame_type frametype)
	Mute the channel associated with this control. More...
void	stasis_app_control_mute_in_bridge (struct stasis_app_control *control, int mute)
	Set whether audio from the channel is muted instead of passing through to the bridge. More...
void	stasis_app_control_publish (struct stasis_app_control *control, struct stasis_message *message)
	Publish a message to the control's channel's topic. More...
int	stasis_app_control_queue_control (struct stasis_app_control *control, enum ast_control_frame_type frame_type)
	Queue a control frame without payload. More...
int	stasis_app_control_redirect (struct stasis_app_control *control, const char *endpoint)
	Redirect a channel in res_stasis to a particular endpoint. More...
void	stasis_app_control_register_add_rule (struct stasis_app_control *control, struct stasis_app_control_rule *rule)
	Registers an add channel to bridge rule. More...
void	stasis_app_control_register_remove_rule (struct stasis_app_control *control, struct stasis_app_control_rule *rule)
	Registers a remove channel from bridge rule. More...
int	stasis_app_control_remove_channel_from_bridge (struct stasis_app_control *control, struct ast_bridge *bridge)
	Remove a channel from the bridge. More...
int	stasis_app_control_ring (struct stasis_app_control *control)
	Indicate ringing to the channel associated with this control. More...
int	stasis_app_control_ring_stop (struct stasis_app_control *control)
	Stop locally generated ringing on the channel associated with this control. More...
int	stasis_app_control_set_channel_var (struct stasis_app_control *control, const char *variable, const char *value)
	Set a variable on the channel associated with this control to value. More...
void	stasis_app_control_shutdown (void)
	Let Stasis app internals shut down. More...
void	stasis_app_control_silence_start (struct stasis_app_control *control)
	Start playing silence to a channel. More...
void	stasis_app_control_silence_stop (struct stasis_app_control *control)
	Stop playing silence to a channel. More...
void	stasis_app_control_unhold (struct stasis_app_control *control)
	Remove the channel associated with the control from hold. More...
int	stasis_app_control_unmute (struct stasis_app_control *control, unsigned int direction, enum ast_frame_type frametype)
	Unmute the channel associated with this control. More...
void	stasis_app_control_unregister_add_rule (struct stasis_app_control *control, struct stasis_app_control_rule *rule)
	UnRegister an add channel to bridge rule. More...
void	stasis_app_control_unregister_remove_rule (struct stasis_app_control *control, struct stasis_app_control_rule *rule)
	Unregisters a remove channel from bridge rule. More...
int	stasis_app_event_allowed (const char *app_name, struct ast_json *event)
	Check if the given event should be filtered. More...
int	stasis_app_event_filter_set (struct stasis_app *app, struct ast_json *filter)
	Set the application's event type filter. More...
struct ast_json *	stasis_app_event_filter_to_json (struct stasis_app *app, struct ast_json *json)
	Convert and add the app's event type filter(s) to the given json object. More...
struct ast_bridge *	stasis_app_get_bridge (struct stasis_app_control *control)
	Gets the bridge currently associated with a control object. More...
int	stasis_app_get_debug (struct stasis_app *app)
	Get debug status of an application. More...
int	stasis_app_get_debug_by_name (const char *app_name)
	Get debug status of an application. More...
struct stasis_message_sanitizer *	stasis_app_get_sanitizer (void)
	Get the Stasis message sanitizer for app_stasis applications. More...
void	stasis_app_set_debug (struct stasis_app *app, int debug)
	Enable/disable request/response and event logging on an application. More...
void	stasis_app_set_debug_by_name (const char *app_name, int debug)
	Enable/disable request/response and event logging on an application. More...
void	stasis_app_set_global_debug (int debug)
	Enable/disable request/response and event logging on all applications. More...
void	stasis_app_to_cli (const struct stasis_app *app, struct ast_cli_args *a)
	Dump properties of a stasis_app to the CLI. More...

Detailed Description

Stasis Application API. See Stasis Application API for detailed documentation.

Author

David M. Lee, II dlee@.nosp@m.digi.nosp@m.um.co.nosp@m.m

Since

12

Definition in file stasis_app.h.

Typedef Documentation

stasis_app_cb

typedef void(* stasis_app_cb) (void *data, const char *app_name, struct ast_json *message)

Callback for Stasis application handler.

The message given to the handler is a borrowed copy. If you want to keep a reference to it, you should use ao2_ref() to keep it around.

Parameters

data	Data ptr given when registered.
app_name	Name of the application being dispatched to.
message	Message to handle. (borrowed copy)

Definition at line 67 of file stasis_app.h.

Enumeration Type Documentation

stasis_app_control_channel_result

enum stasis_app_control_channel_result

Result codes used when adding/removing channels to/from bridges.

Enumerator
STASIS_APP_CHANNEL_OKAY	The channel is okay to be added/removed
STASIS_APP_CHANNEL_RECORDING	The channel is currently recording

Definition at line 800 of file stasis_app.h.

                                       {
    /*! The channel is okay to be added/removed */
    STASIS_APP_CHANNEL_OKAY = 0,
    /*! The channel is currently recording */
    STASIS_APP_CHANNEL_RECORDING
};

stasis_app_subscribe_res

enum stasis_app_subscribe_res

Return code for stasis_app_[un]subscribe.

Enumerator
STASIS_ASR_OK
STASIS_ASR_APP_NOT_FOUND
STASIS_ASR_EVENT_SOURCE_NOT_FOUND
STASIS_ASR_EVENT_SOURCE_BAD_SCHEME
STASIS_ASR_INTERNAL_ERROR

Definition at line 292 of file stasis_app.h.

                              {
    STASIS_ASR_OK,
    STASIS_ASR_APP_NOT_FOUND,
    STASIS_ASR_EVENT_SOURCE_NOT_FOUND,
    STASIS_ASR_EVENT_SOURCE_BAD_SCHEME,
    STASIS_ASR_INTERNAL_ERROR,
};

stasis_app_user_event_res

enum stasis_app_user_event_res

Return code for stasis_app_user_event.

Enumerator
STASIS_APP_USER_OK
STASIS_APP_USER_APP_NOT_FOUND
STASIS_APP_USER_EVENT_SOURCE_NOT_FOUND
STASIS_APP_USER_EVENT_SOURCE_BAD_SCHEME
STASIS_APP_USER_USEREVENT_INVALID
STASIS_APP_USER_INTERNAL_ERROR

Definition at line 265 of file stasis_app.h.

                               {
    STASIS_APP_USER_OK,
    STASIS_APP_USER_APP_NOT_FOUND,
    STASIS_APP_USER_EVENT_SOURCE_NOT_FOUND,
    STASIS_APP_USER_EVENT_SOURCE_BAD_SCHEME,
    STASIS_APP_USER_USEREVENT_INVALID,
    STASIS_APP_USER_INTERNAL_ERROR,
};

Function Documentation

ast_app_get_topic()

struct stasis_topic * ast_app_get_topic

(

struct stasis_app *

app

)

Returns the stasis topic for an app.

Parameters

app	Stasis app to get topic of

Definition at line 1028 of file res/stasis/app.c.

{
    return app->topic;
}

References app.

Referenced by app_send_end_msg(), send_start_msg_snapshots(), and stasis_app_user_event().

stasis_app_bridge_create()

struct ast_bridge * stasis_app_bridge_create	(	const char *	type,
		const char *	name,
		const char *	id
	)

Create a bridge of the specified type.

Parameters

type	The type of bridge to be created
name	Optional name to give to the bridge
id	Optional Unique ID to give to the bridge

Returns

New bridge.

Return values

NULL

on error.

Definition at line 891 of file res_stasis.c.

{
    return bridge_create_common(type, name, id, 0);
}

References bridge_create_common(), name, and type.

Referenced by ast_ari_bridges_create(), and ast_ari_bridges_create_with_id().

stasis_app_bridge_create_invisible()

struct ast_bridge * stasis_app_bridge_create_invisible	(	const char *	type,
		const char *	name,
		const char *	id
	)

Create an invisible bridge of the specified type.

Parameters

type	The type of bridge to be created
name	Optional name to give to the bridge
id	Optional Unique ID to give to the bridge

Returns

New bridge.

Return values

NULL

on error.

Definition at line 896 of file res_stasis.c.

{
    return bridge_create_common(type, name, id, 1);
}

References bridge_create_common(), name, and type.

Referenced by get_dial_bridge().

stasis_app_bridge_destroy()

void stasis_app_bridge_destroy

(

const char *

bridge_id

)

Destroy the bridge.

Parameters

bridge_id

Uniqueid of bridge to be destroyed

Definition at line 901 of file res_stasis.c.

{
    struct ast_bridge *bridge = stasis_app_bridge_find_by_id(bridge_id);
    if (!bridge) {
        return;
    }
    ast_debug(1, "Bridge " BRIDGE_PRINTF_SPEC ": destroying bridge\n",
        BRIDGE_PRINTF_VARS(bridge));
 
    ao2_unlink(app_bridges, bridge);
    ast_debug(1, "Bridge " BRIDGE_PRINTF_SPEC ": unlinked from app_bridges.  current refcount: %d\n",
        BRIDGE_PRINTF_VARS(bridge), ao2_ref(bridge, 0));
    ast_bridge_destroy(bridge, 0);
}

References ao2_ref, ao2_unlink, app_bridges, ast_bridge_destroy(), ast_debug, BRIDGE_PRINTF_SPEC, BRIDGE_PRINTF_VARS, and stasis_app_bridge_find_by_id().

Referenced by ast_ari_bridges_destroy().

stasis_app_bridge_find_by_id()

struct ast_bridge * stasis_app_bridge_find_by_id

(

const char *

bridge_id

)

Returns the bridge with the given id.

Parameters

bridge_id

Uniqueid of the bridge.

Returns

NULL bridge not created by a Stasis application, or bridge does not exist.

Pointer to bridge.

Definition at line 800 of file res_stasis.c.

{
    return ao2_find(app_bridges, bridge_id, OBJ_SEARCH_KEY);
}

References ao2_find, app_bridges, and OBJ_SEARCH_KEY.

Referenced by bridge_create_common(), bridge_find(), find_bridge(), and stasis_app_bridge_destroy().

stasis_app_bridge_moh_channel()

struct ast_channel * stasis_app_bridge_moh_channel

(

struct ast_bridge *

bridge

)

Finds or creates an announcer channel in a bridge that can play music on hold.

Parameters

bridge

Bridge we want an MOH channel for

Returns

NULL if the music on hold channel fails to be created or join the bridge for any reason.

Pointer to the ;1 end of the announcer channel chain.

Definition at line 655 of file res_stasis.c.

{
    struct ast_channel *chan;
    struct stasis_app_bridge_channel_wrapper *moh_wrapper;
 
    ao2_lock(app_bridges_moh);
    moh_wrapper = ao2_find(app_bridges_moh, bridge->uniqueid, OBJ_SEARCH_KEY | OBJ_NOLOCK);
    if (!moh_wrapper) {
        chan = bridge_moh_create(bridge);
    }
    ao2_unlock(app_bridges_moh);
 
    if (moh_wrapper) {
        chan = ast_channel_get_by_name(moh_wrapper->channel_id);
        ao2_ref(moh_wrapper, -1);
    }
 
    return chan;
}

References ao2_find, ao2_lock, ao2_ref, ao2_unlock, app_bridges_moh, ast_channel_get_by_name(), bridge_moh_create(), stasis_app_bridge_channel_wrapper::channel_id, OBJ_NOLOCK, OBJ_SEARCH_KEY, and ast_bridge::uniqueid.

Referenced by ast_ari_bridges_start_moh().

stasis_app_bridge_moh_stop()

int stasis_app_bridge_moh_stop

(

struct ast_bridge *

bridge

)

Breaks down MOH channels playing on the bridge created by stasis_app_bridge_moh_channel.

Parameters

bridge

Bridge we want to stop the MOH on

Returns

-1 if no moh channel could be found and stopped

0 on success

Definition at line 675 of file res_stasis.c.

{
    struct stasis_app_bridge_channel_wrapper *moh_wrapper;
    struct ast_channel *chan;
 
    moh_wrapper = ao2_find(app_bridges_moh, bridge->uniqueid, OBJ_SEARCH_KEY | OBJ_UNLINK);
    if (!moh_wrapper) {
        return -1;
    }
 
    chan = ast_channel_get_by_name(moh_wrapper->channel_id);
    ao2_ref(moh_wrapper, -1);
    if (!chan) {
        return -1;
    }
 
    ast_moh_stop(chan);
    ast_softhangup(chan, AST_CAUSE_NORMAL_CLEARING);
    ao2_cleanup(chan);
 
    return 0;
}

References ao2_cleanup, ao2_find, ao2_ref, app_bridges_moh, AST_CAUSE_NORMAL_CLEARING, ast_channel_get_by_name(), ast_moh_stop(), ast_softhangup(), ast_channel::bridge, stasis_app_bridge_channel_wrapper::channel_id, OBJ_SEARCH_KEY, OBJ_UNLINK, and ast_bridge::uniqueid.

Referenced by ast_ari_bridges_stop_moh().

stasis_app_bridge_playback_channel_add()

int stasis_app_bridge_playback_channel_add	(	struct ast_bridge *	bridge,
		struct ast_channel *	chan,
		struct stasis_app_control *	control
	)

Adds a channel to the list of ARI playback channels for bridges.

Parameters

bridge	Bridge we are adding the playback channel for
chan	Channel being added as a playback channel (must be ;1)
control	The app control structure for the playback channel

Return values

-1	failed to add channel for any reason
0	on success

Definition at line 731 of file res_stasis.c.

{
    RAII_VAR(struct stasis_app_bridge_channel_wrapper *, new_wrapper, NULL, ao2_cleanup);
    char *bridge_id = ast_strdup(bridge->uniqueid);
 
    if (!bridge_id) {
        return -1;
    }
 
    if (ast_bridge_set_after_callback(chan,
        playback_after_bridge_cb, playback_after_bridge_cb_failed, bridge_id)) {
        ast_free(bridge_id);
        return -1;
    }
 
    new_wrapper = ao2_alloc_options(sizeof(*new_wrapper),
        stasis_app_bridge_channel_wrapper_destructor, AO2_ALLOC_OPT_LOCK_NOLOCK);
    if (!new_wrapper) {
        return -1;
    }
 
    if (ast_string_field_init(new_wrapper, 32)) {
        return -1;
    }
 
    ast_string_field_set(new_wrapper, bridge_id, bridge->uniqueid);
    ast_string_field_set(new_wrapper, channel_id, ast_channel_uniqueid(chan));
 
    if (!ao2_link(app_bridges_playback, new_wrapper)) {
        return -1;
    }
 
    ao2_link(app_controls, control);
    return 0;
}

References AO2_ALLOC_OPT_LOCK_NOLOCK, ao2_alloc_options, ao2_cleanup, ao2_link, app_bridges_playback, app_controls, ast_bridge_set_after_callback(), ast_channel_uniqueid(), ast_free, ast_strdup, ast_string_field_init, ast_string_field_set, stasis_app_control::bridge, NULL, playback_after_bridge_cb(), playback_after_bridge_cb_failed(), RAII_VAR, stasis_app_bridge_channel_wrapper_destructor(), and ast_bridge::uniqueid.

Referenced by ari_bridges_play_new().

stasis_app_bridge_playback_channel_find()

struct ast_channel * stasis_app_bridge_playback_channel_find

(

struct ast_bridge *

bridge

)

Finds an existing ARI playback channel in a bridge.

Parameters

bridge

Bridge we want to find the playback channel for

Returns

NULL if the playback channel can not be found for any reason.

Pointer to the ;1 end of the playback channel chain.

Definition at line 785 of file res_stasis.c.

{
    struct stasis_app_bridge_channel_wrapper *playback_wrapper;
    struct ast_channel *chan;
 
    playback_wrapper = ao2_find(app_bridges_playback, bridge->uniqueid, OBJ_SEARCH_KEY);
    if (!playback_wrapper) {
        return NULL;
    }
 
    chan = ast_channel_get_by_name(playback_wrapper->channel_id);
    ao2_ref(playback_wrapper, -1);
    return chan;
}

References ao2_find, ao2_ref, app_bridges_playback, ast_channel_get_by_name(), ast_channel::bridge, stasis_app_bridge_channel_wrapper::channel_id, NULL, OBJ_SEARCH_KEY, and ast_bridge::uniqueid.

Referenced by ari_bridges_handle_play().

stasis_app_bridge_playback_channel_remove()

void stasis_app_bridge_playback_channel_remove	(	char *	bridge_id,
		struct stasis_app_control *	control
	)

remove channel from list of ARI playback channels for bridges.

Parameters

bridge_id	The unique ID of the bridge the playback channel is in.
control	The app control structure for the playback channel

Definition at line 769 of file res_stasis.c.

{
    struct stasis_app_bridge_channel_wrapper *wrapper;
 
    wrapper = ao2_find(app_bridges_playback, bridge_id, OBJ_SEARCH_KEY | OBJ_UNLINK);
    if (wrapper) {
        /* If wrapper is not found, then that means the after bridge callback has been
         * called or is in progress. No need to unlink the control here since that has
         * been done or is about to be done in the after bridge callback
         */
        ao2_unlink(app_controls, control);
        ao2_ref(wrapper, -1);
    }
}

References ao2_find, ao2_ref, ao2_unlink, app_bridges_playback, app_controls, stasis_app_bridge_channel_wrapper::bridge_id, OBJ_SEARCH_KEY, and OBJ_UNLINK.

Referenced by ari_bridges_play_new(), and bridge_channel_control_thread().

stasis_app_channel_is_internal()

int stasis_app_channel_is_internal

(

struct ast_channel *

chan

)

Is this channel internal to Stasis?

Parameters

chan	The channel to check.

Return values

0	No
1	Yes

Definition at line 2401 of file res_stasis.c.

{
    struct ast_datastore *datastore;
    int res = 0;
 
    ast_channel_lock(chan);
    datastore = ast_channel_datastore_find(chan, &stasis_internal_channel_info, NULL);
    if (datastore) {
        res = 1;
    }
    ast_channel_unlock(chan);
 
    return res;
}

References ast_channel_datastore_find(), ast_channel_lock, ast_channel_unlock, NULL, and stasis_internal_channel_info.

Referenced by bridge_stasis_push().

stasis_app_channel_is_stasis_end_published()

int stasis_app_channel_is_stasis_end_published

(

struct ast_channel *

chan

)

Has this channel had a StasisEnd published on it?

Parameters

chan	The channel upon which the query rests.

Return values

0	No
1	Yes

Definition at line 1344 of file res_stasis.c.

{
    struct ast_datastore *datastore;
 
    ast_channel_lock(chan);
    datastore = ast_channel_datastore_find(chan, &set_end_published_info, NULL);
    ast_channel_unlock(chan);
 
    return datastore ? 1 : 0;
}

References ast_channel_datastore_find(), ast_channel_lock, ast_channel_unlock, NULL, and set_end_published_info.

Referenced by internal_bridge_after_cb(), and stasis_app_exec().

stasis_app_channel_set_internal()

int stasis_app_channel_set_internal

(

struct ast_channel *

chan

)

Mark this channel as being internal to Stasis.

Parameters

chan	The channel to mark.

Return values

zero	Success
non-zero	Failure

Definition at line 2390 of file res_stasis.c.

{
    int res;
 
    ast_channel_lock(chan);
    res = set_internal_datastore(chan);
    ast_channel_unlock(chan);
 
    return res;
}

References ast_channel_lock, ast_channel_unlock, ast_unreal_pvt::chan, and set_internal_datastore().

stasis_app_channel_set_stasis_end_published()

void stasis_app_channel_set_stasis_end_published

(

struct ast_channel *

chan

)

Indicate that this channel has had a StasisEnd published for it.

Parameters

chan	The channel that is exiting Stasis.

Definition at line 1332 of file res_stasis.c.

{
    struct ast_datastore *datastore;
 
    datastore = ast_datastore_alloc(&set_end_published_info, NULL);
    if (datastore) {
        ast_channel_lock(chan);
        ast_channel_datastore_add(chan, datastore);
        ast_channel_unlock(chan);
    }
}

References ast_channel_datastore_add(), ast_channel_lock, ast_channel_unlock, ast_datastore_alloc, NULL, and set_end_published_info.

Referenced by bridge_stasis_moving(), and channel_stolen_cb().

stasis_app_channel_unreal_set_internal()

int stasis_app_channel_unreal_set_internal

(

struct ast_channel *

chan

)

Mark this unreal channel and it's other half as being internal to Stasis.

Parameters

chan	The channel to mark.

Return values

zero	Success
non-zero	Failure

Definition at line 2367 of file res_stasis.c.

{
    struct ast_channel *outchan = NULL, *outowner = NULL;
    int res = 0;
    struct ast_unreal_pvt *unreal_pvt = ast_channel_tech_pvt(chan);
 
    ao2_ref(unreal_pvt, +1);
    ast_unreal_lock_all(unreal_pvt, &outowner, &outchan);
    if (outowner) {
        res |= set_internal_datastore(outowner);
        ast_channel_unlock(outowner);
        ast_channel_unref(outowner);
    }
    if (outchan) {
        res |= set_internal_datastore(outchan);
        ast_channel_unlock(outchan);
        ast_channel_unref(outchan);
    }
    ao2_unlock(unreal_pvt);
    ao2_ref(unreal_pvt, -1);
    return res;
}

References ao2_ref, ao2_unlock, ast_channel_tech_pvt(), ast_channel_unlock, ast_channel_unref, ast_unreal_lock_all(), ast_unreal_pvt::chan, NULL, and set_internal_datastore().

Referenced by bridge_moh_create(), and prepare_bridge_media_channel().

stasis_app_control_absorb_dtmf_in_bridge()

void stasis_app_control_absorb_dtmf_in_bridge	(	struct stasis_app_control *	control,
		int	absorb
	)

Set whether DTMF from the channel is absorbed instead of passing through to the bridge.

Parameters

control	Control whose channel should have its DTMF absorbed when bridged
absorb	Whether DTMF should be absorbed (1) instead of passed through (0).

Definition at line 1494 of file control.c.

{
    control->bridge_features->dtmf_passthrough = !absorb;
}

References stasis_app_control::bridge_features, and ast_bridge_features::dtmf_passthrough.

Referenced by ast_ari_bridges_add_channel().

stasis_app_control_add_channel_to_bridge()

int stasis_app_control_add_channel_to_bridge	(	struct stasis_app_control *	control,
		struct ast_bridge *	bridge
	)

Add a channel to the bridge.

Parameters

control	Control whose channel should be added to the bridge
bridge	Pointer to the bridge

Returns

non-zero on failure

zero on success

Definition at line 1413 of file control.c.

{
    ast_debug(3, "%s: Sending channel add_to_bridge command\n",
            stasis_app_control_get_channel_id(control));
 
    return app_send_command_on_condition(
        control, control_add_channel_to_bridge, bridge, NULL,
        app_control_can_add_channel_to_bridge);
}

References app_control_can_add_channel_to_bridge(), app_send_command_on_condition(), ast_debug, control_add_channel_to_bridge(), NULL, and stasis_app_control_get_channel_id().

Referenced by ast_ari_bridges_add_channel().

stasis_app_control_add_role()

int stasis_app_control_add_role	(	struct stasis_app_control *	control,
		const char *	role
	)

Apply a bridge role to a channel controlled by a stasis app control.

Parameters

control	Control for res_stasis
role	Role to apply

Returns

0 for success

-1 for error.

Definition at line 331 of file control.c.

{
    char *role_dup;
 
    role_dup = ast_strdup(role);
    if (!role_dup) {
        return -1;
    }
 
    stasis_app_send_command_async(control, app_control_add_role, role_dup, ast_free_ptr);
 
    return 0;
}

References app_control_add_role(), ast_free_ptr(), ast_strdup, and stasis_app_send_command_async().

Referenced by ast_ari_bridges_add_channel().

stasis_app_control_answer()

int stasis_app_control_answer

(

struct stasis_app_control *

control

)

Answer the channel associated with this control.

Parameters

control

Control for res_stasis.

Returns

0 for success.

Non-zero for error.

Definition at line 44 of file res_stasis_answer.c.

{
    int retval;
 
    ast_debug(3, "%s: Sending answer command\n",
        stasis_app_control_get_channel_id(control));
 
    retval = stasis_app_send_command(control, app_control_answer, NULL, NULL);
 
    if (retval != 0) {
        ast_log(LOG_WARNING, "%s: Failed to answer channel\n",
            stasis_app_control_get_channel_id(control));
        return -1;
    }
 
    return 0;
}

References app_control_answer(), ast_debug, ast_log, LOG_WARNING, NULL, stasis_app_control_get_channel_id(), and stasis_app_send_command().

Referenced by ast_ari_channels_answer().

stasis_app_control_bridge_features_init()

int stasis_app_control_bridge_features_init

(

struct stasis_app_control *

control

)

Initialize bridge features into a channel control.

Note

Bridge features on a control are destroyed after each bridge session, so new features need to be initialized before each bridge add.

Parameters

control

Control in which to store the features

Returns

non-zero on failure

zero on success

Definition at line 1481 of file control.c.

{
    struct ast_bridge_features *features;
 
    features = ast_bridge_features_new();
    if (!features) {
        return 1;
    }
    control->bridge_features = features;
    return 0;
}

References ast_bridge_features_new(), and stasis_app_control::bridge_features.

Referenced by ast_ari_bridges_add_channel().

stasis_app_control_clear_roles()

void stasis_app_control_clear_roles

(

struct stasis_app_control *

control

)

Clear bridge roles currently applied to a channel controlled by a stasis app control.

Parameters

control

Control for res_stasis

Definition at line 353 of file control.c.

{
    stasis_app_send_command_async(control, app_control_clear_roles, NULL, NULL);
}

References app_control_clear_roles(), NULL, and stasis_app_send_command_async().

Referenced by ast_ari_bridges_add_channel().

stasis_app_control_continue()

int stasis_app_control_continue	(	struct stasis_app_control *	control,
		const char *	context,
		const char *	extension,
		int	priority
	)

Exit res_stasis and continue execution in the dialplan.

If the channel is no longer in res_stasis, this function does nothing.

Parameters

control	Control for res_stasis
context	An optional context to continue to
extension	An optional extension to continue to
priority	An optional priority to continue to

Returns

0 for success

-1 for error.

Definition at line 415 of file control.c.

{
    struct stasis_app_control_continue_data *continue_data;
 
    if (!(continue_data = ast_calloc(1, sizeof(*continue_data)))) {
        return -1;
    }
    ast_copy_string(continue_data->context, S_OR(context, ""), sizeof(continue_data->context));
    ast_copy_string(continue_data->extension, S_OR(extension, ""), sizeof(continue_data->extension));
    if (priority > 0) {
        continue_data->priority = priority;
    } else {
        continue_data->priority = -1;
    }
 
    stasis_app_send_command_async(control, app_control_continue, continue_data, ast_free_ptr);
 
    return 0;
}

References app_control_continue(), ast_calloc, ast_copy_string(), ast_free_ptr(), voicemailpwcheck::context, stasis_app_control_continue_data::context, stasis_app_control_continue_data::extension, priority, stasis_app_control_continue_data::priority, S_OR, and stasis_app_send_command_async().

Referenced by ast_ari_channels_continue_in_dialplan().

stasis_app_control_create()

struct stasis_app_control * stasis_app_control_create

(

struct ast_channel *

chan

)

Creates a control handler for a channel that isn't in a stasis app.

Since

12.0.0

Parameters

chan	Channel to create controller handle for

Returns

NULL on failure to create the handle

Pointer to res_stasis handler.

Definition at line 333 of file res_stasis.c.

{
    return control_create(chan, NULL);
}

References control_create(), and NULL.

Referenced by ari_bridges_play_new(), and ast_ari_bridges_record().

stasis_app_control_dial()

int stasis_app_control_dial	(	struct stasis_app_control *	control,
		const char *	dialstring,
		unsigned int	timeout
	)

Dial a channel.

Parameters

control	Control for res_stasis.
dialstring	The dialstring to pass to the channel driver
timeout	Optional timeout in milliseconds

Definition at line 1696 of file control.c.

{
    struct control_dial_args *args;
 
    args = control_dial_args_alloc(dialstring, timeout);
    if (!args) {
        return -1;
    }
 
    return stasis_app_send_command_async(control, app_control_dial,
        args, control_dial_args_destroy);
}

References app_control_dial(), args, control_dial_args_alloc(), control_dial_args_destroy(), control_dial_args::dialstring, stasis_app_send_command_async(), and control_dial_args::timeout.

Referenced by ast_ari_channels_dial().

stasis_app_control_dtmf()

int stasis_app_control_dtmf	(	struct stasis_app_control *	control,
		const char *	dtmf,
		int	before,
		int	between,
		unsigned int	duration,
		int	after
	)

Send DTMF to the channel associated with this control.

Parameters

control	Control for res_stasis.
dtmf	DTMF string.
before	Amount of time to wait before sending DTMF digits.
between	Amount of time between each DTMF digit.
duration	Amount of time each DTMF digit lasts for.
after	Amount of time to wait after sending DTMF digits.

Returns

0 for success.

-1 for error.

Definition at line 591 of file control.c.

{
    struct stasis_app_control_dtmf_data *dtmf_data;
 
    if (!(dtmf_data = ast_calloc(1, sizeof(*dtmf_data) + strlen(dtmf) + 1))) {
        return -1;
    }
 
    dtmf_data->before = before;
    dtmf_data->between = between;
    dtmf_data->duration = duration;
    dtmf_data->after = after;
    strcpy(dtmf_data->dtmf, dtmf);
 
    stasis_app_send_command_async(control, app_control_dtmf, dtmf_data, ast_free_ptr);
 
    return 0;
}

References stasis_app_control_dtmf_data::after, app_control_dtmf(), ast_calloc, ast_free_ptr(), stasis_app_control_dtmf_data::before, stasis_app_control_dtmf_data::between, stasis_app_control_dtmf_data::dtmf, stasis_app_control_dtmf_data::duration, and stasis_app_send_command_async().

Referenced by ast_ari_channels_send_dtmf().

stasis_app_control_execute_until_exhausted()

void stasis_app_control_execute_until_exhausted	(	struct ast_channel *	chan,
		struct stasis_app_control *	control
	)

Act on a stasis app control queue until it is empty.

Since

12.0.0

Parameters

chan	Channel to handle
control	Control object to execute

Definition at line 1295 of file res_stasis.c.

{
    while (!control_is_done(control)) {
        int command_count;
        command_count = control_dispatch_all(control, chan);
 
        ao2_lock(control);
 
        if (control_command_count(control)) {
            /* If the command queue isn't empty, something added to the queue before it was locked. */
            ao2_unlock(control);
            continue;
        }
 
        if (command_count == 0 || ast_channel_fdno(chan) == -1) {
            control_mark_done(control);
            ao2_unlock(control);
            break;
        }
        ao2_unlock(control);
    }
}

References ao2_lock, ao2_unlock, ast_channel_fdno(), control_command_count(), control_dispatch_all(), control_is_done(), and control_mark_done().

Referenced by bridge_channel_control_thread().

stasis_app_control_find_by_channel()

struct stasis_app_control * stasis_app_control_find_by_channel

(

const struct ast_channel *

chan

)

Returns the handler for the given channel.

Parameters

chan	Channel to handle.

Returns

NULL channel not in Stasis application.

Pointer to res_stasis handler.

Definition at line 338 of file res_stasis.c.

{
    if (chan == NULL) {
        return NULL;
    }
 
    return stasis_app_control_find_by_channel_id(
        ast_channel_uniqueid(chan));
}

References ast_channel_uniqueid(), NULL, and stasis_app_control_find_by_channel_id().

Referenced by ari_bridges_play_found(), bridge_stasis_moving(), bridge_stasis_push(), bridge_stasis_push_peek(), and bridge_timeout().

stasis_app_control_find_by_channel_id()

struct stasis_app_control * stasis_app_control_find_by_channel_id

(

const char *

channel_id

)

Returns the handler for the channel with the given id.

Parameters

channel_id

Uniqueid of the channel.

Returns

NULL channel not in Stasis application, or channel does not exist.

Pointer to res_stasis handler.

Definition at line 349 of file res_stasis.c.

{
    return ao2_find(app_controls, channel_id, OBJ_SEARCH_KEY);
}

References ao2_find, app_controls, and OBJ_SEARCH_KEY.

Referenced by find_channel_control(), find_control(), remove_bridge_playback(), and stasis_app_control_find_by_channel().

stasis_app_control_flush_queue()

void stasis_app_control_flush_queue

(

struct stasis_app_control *

control

)

Flush the control command queue.

Since

13.9.0

Parameters

control

Control object to flush command queue.

Definition at line 1323 of file res_stasis.c.

{
    control_flush_queue(control);
}

References control_flush_queue().

Referenced by bridge_channel_control_thread().

stasis_app_control_get_channel_id()

const char * stasis_app_control_get_channel_id

(

const struct stasis_app_control *

control

)

Returns the uniqueid of the channel associated with this control.

Parameters

control

Control object.

Returns

Uniqueid of the associate channel.

Return values

NULL	if control is NULL.

Definition at line 1460 of file control.c.

{
    return ast_channel_uniqueid(control->channel);
}

References ast_channel_uniqueid(), and stasis_app_control::channel.

Referenced by app_control_answer(), app_control_remove_channel_from_bridge(), app_control_silence_start(), check_add_remove_channel(), control_compare(), control_hash(), control_silence_stop_now(), control_swap_channel_in_bridge(), masq_match_cb(), playback_publish(), recording_publish(), stasis_app_control_add_channel_to_bridge(), stasis_app_control_answer(), stasis_app_control_get_snapshot(), stasis_app_control_play_uri(), stasis_app_control_record(), and stasis_app_control_remove_channel_from_bridge().

stasis_app_control_get_snapshot()

struct ast_channel_snapshot * stasis_app_control_get_snapshot

(

const struct stasis_app_control *

control

)

Returns the most recent snapshot for the associated channel.

The returned pointer is AO2 managed, so ao2_cleanup() when you're done.

Parameters

control

Control for res_stasis.

Returns

Most recent snapshot. ao2_cleanup() when done.

Return values

NULL	if channel isn't in cache.

Definition at line 886 of file control.c.

{
    return ast_channel_snapshot_get_latest(stasis_app_control_get_channel_id(control));
}

References ast_channel_snapshot_get_latest(), and stasis_app_control_get_channel_id().

Referenced by ari_bridges_play_helper(), ari_channels_handle_play(), ast_ari_channels_continue_in_dialplan(), and channel_state_invalid().

stasis_app_control_hold()

void stasis_app_control_hold

(

struct stasis_app_control *

control

)

Place the channel associated with the control on hold.

Parameters

control

Control for res_stasis.

Definition at line 774 of file control.c.

{
    stasis_app_send_command_async(control, app_control_hold, NULL, NULL);
}

References app_control_hold(), NULL, and stasis_app_send_command_async().

Referenced by ast_ari_channels_hold().

stasis_app_control_inhibit_colp_in_bridge()

void stasis_app_control_inhibit_colp_in_bridge	(	struct stasis_app_control *	control,
		int	inhibit_colp
	)

Set whether COLP frames should be generated when joining the bridge.

Since

18

Parameters

control	Control whose channel should have its COLP frames inhibited when bridged
inhibit_colp	Whether COLP frames should be generated (0) or not (1).

Definition at line 1506 of file control.c.

{
    control->bridge_features->inhibit_colp = inhibit_colp;
}

References stasis_app_control::bridge_features, and ast_bridge_features::inhibit_colp.

Referenced by ast_ari_bridges_add_channel().

stasis_app_control_is_done()

int stasis_app_control_is_done

(

struct stasis_app_control *

control

)

Check if a control is marked as done.

Since

12.2.0

Parameters

control

Which control object is being evaluated

Definition at line 1318 of file res_stasis.c.

{
    return control_is_done(control);
}

References control_is_done().

Referenced by ari_bridges_play_found().

stasis_app_control_is_failed()

int stasis_app_control_is_failed

(

const struct stasis_app_control *

control

)

Check if a control object is marked as "failed".

Parameters

control

Control object to check

Definition at line 382 of file control.c.

{
    return control->failed;
}

References stasis_app_control::failed.

Referenced by stasis_app_exec().

stasis_app_control_mark_failed()

void stasis_app_control_mark_failed

(

struct stasis_app_control *

control

)

Set the failed flag on a control structure.

Parameters

control

Control object to be updated

Definition at line 377 of file control.c.

{
    control->failed = 1;
}

References stasis_app_control::failed.

stasis_app_control_moh_start()

void stasis_app_control_moh_start	(	struct stasis_app_control *	control,
		const char *	moh_class
	)

Play music on hold to a channel (does not affect hold status)

Parameters

control	Control for res_stasis.
moh_class	class of music on hold to play (NULL allowed)

Definition at line 806 of file control.c.

{
    char *data = NULL;
 
    if (!ast_strlen_zero(moh_class)) {
        data = ast_strdup(moh_class);
    }
 
    stasis_app_send_command_async(control, app_control_moh_start, data, ast_free_ptr);
}

References app_control_moh_start(), ast_free_ptr(), ast_strdup, ast_strlen_zero(), NULL, and stasis_app_send_command_async().

Referenced by ast_ari_channels_start_moh().

stasis_app_control_moh_stop()

void stasis_app_control_moh_stop

(

struct stasis_app_control *

control

)

Stop playing music on hold to a channel (does not affect hold status)

Parameters

control

Control for res_stasis.

Definition at line 824 of file control.c.

{
    stasis_app_send_command_async(control, app_control_moh_stop, NULL, NULL);
}

References app_control_moh_stop(), NULL, and stasis_app_send_command_async().

Referenced by ast_ari_channels_stop_moh().

stasis_app_control_move()

int stasis_app_control_move	(	struct stasis_app_control *	control,
		const char *	app_name,
		const char *	app_args
	)

Exit res_stasis and move to another Stasis application.

If the channel is no longer in res_stasis, this function does nothing.

Parameters

control	Control for res_stasis
app_name	The name of the application to switch to
app_args	The list of arguments to pass to the application

Returns

0 for success

-1 for error

Definition at line 477 of file control.c.

{
    struct stasis_app_control_move_data *move_data;
    size_t size;
 
    size = sizeof(*move_data) + strlen(app_name) + 1;
    if (app_args) {
        /* Application arguments are optional */
        size += strlen(app_args) + 1;
    }
 
    if (!(move_data = ast_calloc(1, size))) {
        return -1;
    }
 
    move_data->app_name = (char *)move_data + sizeof(*move_data);
    strcpy(move_data->app_name, app_name); /* Safe */
 
    if (app_args) {
        move_data->app_args = move_data->app_name + strlen(app_name) + 1;
        strcpy(move_data->app_args, app_args); /* Safe */
    } else {
        move_data->app_args = NULL;
    }
 
    stasis_app_send_command_async(control, app_control_move, move_data, ast_free_ptr);
 
    return 0;
}

References stasis_app_control_move_data::app_args, app_control_move(), app_name(), stasis_app_control_move_data::app_name, ast_calloc, ast_free_ptr(), NULL, and stasis_app_send_command_async().

Referenced by ast_ari_channels_move().

stasis_app_control_mute()

int stasis_app_control_mute	(	struct stasis_app_control *	control,
		unsigned int	direction,
		enum ast_frame_type	frametype
	)

Mute the channel associated with this control.

Parameters

control	Control for res_stasis.
direction	The direction in which the audio should be muted.
frametype	The type of stream that should be muted.

Returns

0 for success

-1 for error.

Definition at line 657 of file control.c.

{
    struct stasis_app_control_mute_data *mute_data;
 
    if (!(mute_data = ast_calloc(1, sizeof(*mute_data)))) {
        return -1;
    }
 
    mute_data->direction = direction;
    mute_data->frametype = frametype;
 
    stasis_app_send_command_async(control, app_control_mute, mute_data, ast_free_ptr);
 
    return 0;
}

References app_control_mute(), ast_calloc, ast_free_ptr(), stasis_app_control_mute_data::direction, stasis_app_control_mute_data::frametype, and stasis_app_send_command_async().

Referenced by ast_ari_channels_mute().

stasis_app_control_mute_in_bridge()

void stasis_app_control_mute_in_bridge	(	struct stasis_app_control *	control,
		int	mute
	)

Set whether audio from the channel is muted instead of passing through to the bridge.

Parameters

control	Control whose channel should have its audio muted when bridged
mute	Whether audio should be muted (1) instead of passed through (0).

Definition at line 1500 of file control.c.

{
    control->bridge_features->mute = mute;
}

References stasis_app_control::bridge_features, and ast_bridge_features::mute.

Referenced by ast_ari_bridges_add_channel().

stasis_app_control_publish()

void stasis_app_control_publish	(	struct stasis_app_control *	control,
		struct stasis_message *	message
	)

Publish a message to the control's channel's topic.

Parameters

control	Control to publish to
message	Message to publish

Definition at line 1466 of file control.c.

{
    if (!control || !control->channel || !message) {
        return;
    }
    stasis_publish(ast_channel_topic(control->channel), message);
}

References ast_channel_topic(), stasis_app_control::channel, and stasis_publish().

Referenced by playback_publish(), and recording_publish().

stasis_app_control_queue_control()

int stasis_app_control_queue_control	(	struct stasis_app_control *	control,
		enum ast_control_frame_type	frame_type
	)

Queue a control frame without payload.

Parameters

control	Control to publish to.
frame_type	type of control frame.

Returns

zero on success

non-zero on failure

Definition at line 1475 of file control.c.

{
    return ast_queue_control(control->channel, frame_type);
}

References ast_queue_control(), and stasis_app_control::channel.

Referenced by playback_forward(), playback_pause(), playback_restart(), playback_reverse(), playback_stop(), playback_unpause(), recording_cancel(), recording_pause(), recording_stop(), recording_unpause(), and toggle_recording_mute().

stasis_app_control_redirect()

int stasis_app_control_redirect	(	struct stasis_app_control *	control,
		const char *	endpoint
	)

Redirect a channel in res_stasis to a particular endpoint.

Parameters

control	Control for res_stasis
endpoint	The endpoint transfer string where the channel should be sent to

Returns

0 for success

-1 for error

Definition at line 526 of file control.c.

{
    char *endpoint_data = ast_strdup(endpoint);
 
    if (!endpoint_data) {
        return -1;
    }
 
    stasis_app_send_command_async(control, app_control_redirect, endpoint_data, ast_free_ptr);
 
    return 0;
}

References app_control_redirect(), ast_free_ptr(), ast_strdup, and stasis_app_send_command_async().

Referenced by ast_ari_channels_redirect().

stasis_app_control_register_add_rule()

void stasis_app_control_register_add_rule	(	struct stasis_app_control *	control,
		struct stasis_app_control_rule *	rule
	)

Registers an add channel to bridge rule.

Parameters

control	Control object
rule	The rule to register

Definition at line 225 of file control.c.

{
    return app_control_register_rule(control, &control->add_rules, rule);
}

References stasis_app_control::add_rules, and app_control_register_rule().

Referenced by stasis_app_control_record().

stasis_app_control_register_remove_rule()

void stasis_app_control_register_remove_rule	(	struct stasis_app_control *	control,
		struct stasis_app_control_rule *	rule
	)

Registers a remove channel from bridge rule.

Parameters

control	Control object
rule	The rule to register

Definition at line 239 of file control.c.

{
    return app_control_register_rule(control, &control->remove_rules, rule);
}

References app_control_register_rule(), and stasis_app_control::remove_rules.

stasis_app_control_remove_channel_from_bridge()

int stasis_app_control_remove_channel_from_bridge	(	struct stasis_app_control *	control,
		struct ast_bridge *	bridge
	)

Remove a channel from the bridge.

Parameters

control	Control whose channel should be removed from the bridge
bridge	Pointer to the bridge

Returns

non-zero on failure

zero on success

Definition at line 1450 of file control.c.

{
    ast_debug(3, "%s: Sending channel remove_from_bridge command\n",
            stasis_app_control_get_channel_id(control));
    return app_send_command_on_condition(
        control, app_control_remove_channel_from_bridge, bridge, NULL,
        app_control_can_remove_channel_from_bridge);
}

References app_control_can_remove_channel_from_bridge(), app_control_remove_channel_from_bridge(), app_send_command_on_condition(), ast_debug, NULL, and stasis_app_control_get_channel_id().

Referenced by ast_ari_bridges_remove_channel().

stasis_app_control_ring()

int stasis_app_control_ring

(

struct stasis_app_control *

control

)

Indicate ringing to the channel associated with this control.

Parameters

control

Control for res_stasis.

Returns

0 for success.

-1 for error.

Definition at line 618 of file control.c.

{
    stasis_app_send_command_async(control, app_control_ring, NULL, NULL);
 
    return 0;
}

References app_control_ring(), NULL, and stasis_app_send_command_async().

Referenced by ast_ari_channels_ring().

stasis_app_control_ring_stop()

int stasis_app_control_ring_stop

(

struct stasis_app_control *

control

)

Stop locally generated ringing on the channel associated with this control.

Parameters

control

Control for res_stasis.

Returns

0 for success.

-1 for error.

Definition at line 633 of file control.c.

{
    stasis_app_send_command_async(control, app_control_ring_stop, NULL, NULL);
 
    return 0;
}

References app_control_ring_stop(), NULL, and stasis_app_send_command_async().

Referenced by ast_ari_channels_ring_stop().

stasis_app_control_set_channel_var()

int stasis_app_control_set_channel_var	(	struct stasis_app_control *	control,
		const char *	variable,
		const char *	value
	)

Set a variable on the channel associated with this control to value.

Parameters

control	Control for res_stasis.
variable	The name of the variable
value	The value to set the variable to

Returns

0 for success.

-1 for error.

Definition at line 737 of file control.c.

{
    struct chanvar *var;
 
    var = ast_calloc(1, sizeof(*var));
    if (!var) {
        return -1;
    }
 
    var->name = ast_strdup(variable);
    if (!var->name) {
        free_chanvar(var);
        return -1;
    }
 
    /* It's kosher for value to be NULL. It means the variable is being unset */
    if (value) {
        var->value = ast_strdup(value);
        if (!var->value) {
            free_chanvar(var);
            return -1;
        }
    }
 
    stasis_app_send_command_async(control, app_control_set_channel_var, var, free_chanvar);
 
    return 0;
}

References app_control_set_channel_var(), ast_calloc, ast_strdup, free_chanvar(), stasis_app_send_command_async(), value, and var.

Referenced by ast_ari_channels_set_channel_var().

stasis_app_control_shutdown()

void stasis_app_control_shutdown

(

void

)

Let Stasis app internals shut down.

This is called when res_stasis is unloaded. It ensures that the Stasis app internals can free any resources they may have allocated during the time that res_stasis was loaded.

Definition at line 1710 of file control.c.

{
    ast_mutex_lock(&dial_bridge_lock);
    shutting_down = 1;
    if (dial_bridge) {
        ast_bridge_destroy(dial_bridge, 0);
        dial_bridge = NULL;
    }
    ast_mutex_unlock(&dial_bridge_lock);
}

References ast_bridge_destroy(), ast_mutex_lock, ast_mutex_unlock, dial_bridge, dial_bridge_lock, NULL, and shutting_down.

Referenced by unload_module().

stasis_app_control_silence_start()

void stasis_app_control_silence_start

(

struct stasis_app_control *

control

)

Start playing silence to a channel.

Parameters

control

Control for res_stasis.

Definition at line 858 of file control.c.

{
    stasis_app_send_command_async(control, app_control_silence_start, NULL, NULL);
}

References app_control_silence_start(), NULL, and stasis_app_send_command_async().

Referenced by ast_ari_channels_start_silence().

stasis_app_control_silence_stop()

void stasis_app_control_silence_stop

(

struct stasis_app_control *

control

)

Stop playing silence to a channel.

Parameters

control

Control for res_stasis.

Definition at line 881 of file control.c.

{
    stasis_app_send_command_async(control, app_control_silence_stop, NULL, NULL);
}

References app_control_silence_stop(), NULL, and stasis_app_send_command_async().

Referenced by ast_ari_channels_stop_silence().

stasis_app_control_unhold()

void stasis_app_control_unhold

(

struct stasis_app_control *

control

)

Remove the channel associated with the control from hold.

Parameters

control

Control for res_stasis.

Definition at line 787 of file control.c.

{
    stasis_app_send_command_async(control, app_control_unhold, NULL, NULL);
}

References app_control_unhold(), NULL, and stasis_app_send_command_async().

Referenced by ast_ari_channels_unhold().

stasis_app_control_unmute()

int stasis_app_control_unmute	(	struct stasis_app_control *	control,
		unsigned int	direction,
		enum ast_frame_type	frametype
	)

Unmute the channel associated with this control.

Parameters

control	Control for res_stasis.
direction	The direction in which the audio should be unmuted.
frametype	The type of stream that should be unmuted.

Returns

0 for success

-1 for error.

Definition at line 685 of file control.c.

{
    struct stasis_app_control_mute_data *mute_data;
 
    if (!(mute_data = ast_calloc(1, sizeof(*mute_data)))) {
        return -1;
    }
 
    mute_data->direction = direction;
    mute_data->frametype = frametype;
 
    stasis_app_send_command_async(control, app_control_unmute, mute_data, ast_free_ptr);
 
    return 0;
}

References app_control_unmute(), ast_calloc, ast_free_ptr(), stasis_app_control_mute_data::direction, stasis_app_control_mute_data::frametype, and stasis_app_send_command_async().

Referenced by ast_ari_channels_unmute().

stasis_app_control_unregister_add_rule()

void stasis_app_control_unregister_add_rule	(	struct stasis_app_control *	control,
		struct stasis_app_control_rule *	rule
	)

UnRegister an add channel to bridge rule.

Parameters

control	Control object
rule	The rule to unregister

Definition at line 232 of file control.c.

{
    app_control_unregister_rule(control, &control->add_rules, rule);
}

References stasis_app_control::add_rules, and app_control_unregister_rule().

Referenced by record_file(), and recording_fail().

stasis_app_control_unregister_remove_rule()

void stasis_app_control_unregister_remove_rule	(	struct stasis_app_control *	control,
		struct stasis_app_control_rule *	rule
	)

Unregisters a remove channel from bridge rule.

Parameters

control	Control object
rule	The rule to unregister

Definition at line 246 of file control.c.

{
    app_control_unregister_rule(control, &control->remove_rules, rule);
}

References app_control_unregister_rule(), and stasis_app_control::remove_rules.

stasis_app_event_allowed()

int stasis_app_event_allowed	(	const char *	app_name,
		struct ast_json *	event
	)

Check if the given event should be filtered.

Attempts first to find the event in the application's disallowed events list. If found then the event won't be sent to the remote. If not found in the disallowed list then a search is done to see if it can be found in the allowed list. If found the event message is sent, otherwise it is not sent.

Parameters

app_name	The application name
event	The event to check

Returns

True if allowed, false otherwise

Definition at line 1734 of file res/stasis/app.c.

{
    struct stasis_app *app = stasis_app_get_by_name(app_name);
    int res;
 
    if (!app) {
        return 0;
    }
 
    ao2_lock(app);
    res = !app_event_filter_matched(app->events_disallowed, event, 0) &&
        app_event_filter_matched(app->events_allowed, event, 1);
    ao2_unlock(app);
    ao2_ref(app, -1);
 
    return res;
}

References ao2_lock, ao2_ref, ao2_unlock, app, app_event_filter_matched(), app_name(), and stasis_app_get_by_name().

Referenced by ari_websocket_send_event().

stasis_app_event_filter_set()

int stasis_app_event_filter_set	(	struct stasis_app *	app,
		struct ast_json *	filter
	)

Set the application's event type filter.

Parameters

app	The application
filter	The allowed and/or disallowed event filter

Returns

0 if successfully set

Definition at line 1708 of file res/stasis/app.c.

{
    return app_events_disallowed_set(app, filter) || app_events_allowed_set(app, filter);
}

References app, app_events_allowed_set(), app_events_disallowed_set(), and filter().

Referenced by ast_ari_applications_filter().

stasis_app_event_filter_to_json()

struct ast_json * stasis_app_event_filter_to_json	(	struct stasis_app *	app,
		struct ast_json *	json
	)

Convert and add the app's event type filter(s) to the given json object.

Parameters

app	The application
json	The json object to add the filter data to

Returns

The given json object

Definition at line 1636 of file res/stasis/app.c.

{
    if (!app || !json) {
        return json;
    }
 
    ast_json_object_set(json, "events_allowed", app->events_allowed ?
        ast_json_ref(app->events_allowed) : ast_json_array_create());
    ast_json_object_set(json, "events_disallowed", app->events_disallowed ?
        ast_json_ref(app->events_disallowed) : ast_json_array_create());
 
    return json;
}

References app, ast_json_array_create(), ast_json_object_set(), and ast_json_ref().

Referenced by stasis_app_object_to_json().

stasis_app_get_all()

struct ao2_container * stasis_app_get_all

(

void

)

Gets the names of all registered Stasis applications.

Returns

ast_str_container of container names.

Return values

NULL

on error.

Definition at line 1769 of file res_stasis.c.

{
    struct ao2_container *apps;
 
    if (!apps_registry) {
        return NULL;
    }
 
    apps = ast_str_container_alloc(1);
    if (!apps) {
        return NULL;
    }
 
    ao2_callback(apps_registry, OBJ_NODATA, append_name, apps);
 
    return apps;
}

References ao2_callback, append_name(), apps, apps_registry, ast_str_container_alloc, NULL, and OBJ_NODATA.

Referenced by ari_show_apps(), ast_ari_applications_list(), complete_ari_app(), and stasis_app_set_global_debug().

stasis_app_get_bridge()

struct ast_bridge * stasis_app_get_bridge

(

struct stasis_app_control *

control

)

Gets the bridge currently associated with a control object.

Since

12

Note

If the bridge returned by this function is to be held for any length of time, its refcount should be incremented until the caller is finished with it.

Parameters

control

Control object for the channel to query.

Returns

Associated ast_bridge.

Return values

NULL	if not associated with a bridge.

Definition at line 957 of file control.c.

{
    struct ast_bridge *ret;
 
    if (!control) {
        return NULL;
    }
 
    ao2_lock(control);
    ret = control->bridge;
    ao2_unlock(control);
 
    return ret;
}

References ao2_lock, ao2_unlock, stasis_app_control::bridge, and NULL.

Referenced by app_control_continue(), app_control_dtmf(), app_control_remove_channel_from_bridge(), ast_ari_bridges_remove_channel(), ast_ari_bridges_set_video_source(), control_swap_channel_in_bridge(), play_uri(), record_file(), and stasis_app_exec().

stasis_app_get_by_name()

struct stasis_app * stasis_app_get_by_name

(

const char *

name

)

Retrieve a handle to a Stasis application by its name.

Parameters

name	The name of the registered Stasis application

Returns

stasis_app on success.

Return values

NULL

on error.

Definition at line 1742 of file res_stasis.c.

{
    return find_app_by_name(name);
}

References find_app_by_name(), and name.

Referenced by ari_set_debug(), ari_show_app(), ast_ari_applications_filter(), stasis_app_event_allowed(), stasis_app_get_debug_by_name(), stasis_app_set_debug_by_name(), and stasis_app_set_global_debug().

stasis_app_get_debug()

int stasis_app_get_debug

(

struct stasis_app *

app

)

Get debug status of an application.

Parameters

app	The app to check

Returns

The debug flag for the app || the global debug flag

Definition at line 863 of file res/stasis/app.c.

{
    return (app ? app->debug : 0) || global_debug;
}

References app, and global_debug.

stasis_app_get_debug_by_name()

int stasis_app_get_debug_by_name

(

const char *

app_name

)

Get debug status of an application.

Parameters

app_name

The app_name to check

Returns

The debug flag for the app || the global debug flag

Definition at line 868 of file res/stasis/app.c.

{
    int debug_enabled = 0;
 
    if (global_debug) {
        debug_enabled = 1;
    } else {
        struct stasis_app *app = stasis_app_get_by_name(app_name);
 
        if (app) {
            if (app->debug) {
                debug_enabled = 1;
            }
            ao2_ref(app, -1);
        }
    }
    return debug_enabled;
}

References ao2_ref, app, app_name(), global_debug, and stasis_app_get_by_name().

Referenced by ari_websocket_process_request(), ast_ari_callback(), and stasis_app_message_handler().

stasis_app_get_sanitizer()

struct stasis_message_sanitizer * stasis_app_get_sanitizer

(

void

)

Get the Stasis message sanitizer for app_stasis applications.

Return values

The	stasis message sanitizer

Definition at line 2343 of file res_stasis.c.

{
    return &app_sanitizer;
}

References app_sanitizer.

Referenced by app_send_end_msg(), ast_ari_bridges_create(), ast_ari_bridges_create_with_id(), ast_ari_bridges_get(), ast_ari_bridges_list(), ast_ari_channels_list(), ast_ari_endpoints_get(), ast_ari_endpoints_list(), ast_ari_endpoints_list_by_tech(), channel_callerid(), channel_connected_line(), channel_destroyed_event(), channel_dialplan(), message_received_handler(), simple_bridge_event(), simple_channel_event(), and simple_endpoint_event().

stasis_app_is_registered()

int stasis_app_is_registered

(

const char *

name

)

Check if a Stasis application is registered.

Parameters

name	The name of the registered Stasis application

Returns

1 if the application is registered.

0 if the application is not registered.

Definition at line 1747 of file res_stasis.c.

{
    struct stasis_app *app = find_app_by_name(name);
 
    /*
     * It's safe to unref app here because we're not actually
     * using it or returning it.
     */
    ao2_cleanup(app);
 
    return app != NULL;
}

References ao2_cleanup, app, find_app_by_name(), name, and NULL.

stasis_app_name()

const char * stasis_app_name

(

const struct stasis_app *

app

)

Retrieve an application's name.

Parameters

app	An application

Returns

The name of the application.

Definition at line 1151 of file res/stasis/app.c.

{
    return app->name;
}

References app.

Referenced by app_compare(), app_hash(), app_send_end_msg(), app_subscribe(), app_unsubscribe(), append_name(), ari_set_debug(), bridge_stasis_push_peek(), cleanup_cb(), device_state_subscription_create(), devices_to_json(), find_device_state_subscription(), send_start_msg_snapshots(), stasis_app_exec(), and subscribe_device_state().

stasis_app_object_to_json()

struct ast_json * stasis_app_object_to_json

(

struct stasis_app *

app

)

Return the JSON representation of a Stasis application.

Since

16.3.0

Parameters

app	The application.

Returns

JSON representation of app with given name.

Return values

NULL

on error.

Definition at line 1945 of file res_stasis.c.

{
    if (!app) {
        return NULL;
    }
 
    return stasis_app_event_filter_to_json(
        app, app_event_sources_to_json(app, app_to_json(app)));
}

References app, app_event_sources_to_json(), app_to_json(), NULL, and stasis_app_event_filter_to_json().

Referenced by app_handle_subscriptions(), ast_ari_applications_filter(), and stasis_app_to_json().

stasis_app_register()

int stasis_app_register	(	const char *	app_name,
		stasis_app_cb	handler,
		void *	data
	)

Register a new Stasis application.

If an application is already registered with the given name, the old application is sent a 'replaced' message and unregistered.

Parameters

app_name	Name of this application.
handler	Callback for application messages.
data	Data blob to pass to the callback. Must be AO2 managed.

Returns

0 for success

-1 for error.

Definition at line 1838 of file res_stasis.c.

{
    return __stasis_app_register(app_name, handler, data, 0);
}

References __stasis_app_register(), app_name(), and handler().

Referenced by ari_ws_session_create(), and AST_TEST_DEFINE().

stasis_app_register_all()

int stasis_app_register_all	(	const char *	app_name,
		stasis_app_cb	handler,
		void *	data
	)

Register a new Stasis application that receives all Asterisk events.

If an application is already registered with the given name, the old application is sent a 'replaced' message and unregistered.

Parameters

app_name	Name of this application.
handler	Callback for application messages.
data	Data blob to pass to the callback. Must be AO2 managed.

Returns

0 for success

-1 for error.

Definition at line 1843 of file res_stasis.c.

{
    return __stasis_app_register(app_name, handler, data, 1);
}

References __stasis_app_register(), app_name(), and handler().

Referenced by ari_ws_session_create().

stasis_app_register_event_source()

void stasis_app_register_event_source

(

struct stasis_app_event_source *

obj

)

Register an application event source.

Parameters

obj	the event source to register

Definition at line 1895 of file res_stasis.c.

{
    AST_RWLIST_WRLOCK(&event_sources);
    AST_LIST_INSERT_TAIL(&event_sources, obj, next);
    AST_RWLIST_UNLOCK(&event_sources);
}

References AST_LIST_INSERT_TAIL, AST_RWLIST_UNLOCK, AST_RWLIST_WRLOCK, and stasis_app_event_source::next.

Referenced by load_module(), and stasis_app_register_event_sources().

stasis_app_register_event_sources()

void stasis_app_register_event_sources

(

void

)

Register core event sources.

Definition at line 1622 of file res/stasis/app.c.

{
    stasis_app_register_event_source(&channel_event_source);
    stasis_app_register_event_source(&bridge_event_source);
    stasis_app_register_event_source(&endpoint_event_source);
}

References bridge_event_source, channel_event_source, endpoint_event_source, and stasis_app_register_event_source().

Referenced by load_module().

stasis_app_send()

int stasis_app_send	(	const char *	app_name,
		struct ast_json *	message
	)

Send a message to the given Stasis application.

The message given to the handler is a borrowed copy. If you want to keep a reference to it, you should use ao2_ref() to keep it around.

Parameters

app_name	Name of the application to invoke.
message	Message to send (borrowed reference)

Returns

0 for success.

-1 for error.

Definition at line 1704 of file res_stasis.c.

{
    struct stasis_app *app;
 
    if (!apps_registry) {
        return -1;
    }
 
    app = ao2_find(apps_registry, app_name, OBJ_SEARCH_KEY);
    if (!app) {
        /* XXX We can do a better job handling late binding, queueing up
         * the call for a few seconds to wait for the app to register.
         */
        ast_log(LOG_WARNING,
            "Stasis app '%s' not registered\n", app_name);
        return -1;
    }
    app_send(app, message);
    ao2_ref(app, -1);
 
    return 0;
}

References ao2_find, ao2_ref, app, app_name(), app_send(), apps_registry, ast_log, LOG_WARNING, and OBJ_SEARCH_KEY.

Referenced by AST_TEST_DEFINE(), and send_device_state().

stasis_app_set_debug()

void stasis_app_set_debug	(	struct stasis_app *	app,
		int	debug
	)

Enable/disable request/response and event logging on an application.

Parameters

app	The app to debug
debug	If non-zero, enable debugging. If zero, disable.

Definition at line 842 of file res/stasis/app.c.

{
    if (!app) {
        return;
    }
 
    app->debug = debug;
}

References app, and debug.

Referenced by ari_set_debug(), and stasis_app_set_global_debug().

stasis_app_set_debug_by_name()

void stasis_app_set_debug_by_name	(	const char *	app_name,
		int	debug
	)

Enable/disable request/response and event logging on an application.

Parameters

app_name	The app name to debug
debug	If non-zero, enable debugging. If zero, disable.

Definition at line 851 of file res/stasis/app.c.

{
    struct stasis_app *app = stasis_app_get_by_name(app_name);
 
    if (!app) {
        return;
    }
 
    app->debug = debug;
    ao2_cleanup(app);
}

References ao2_cleanup, app, app_name(), debug, and stasis_app_get_by_name().

stasis_app_set_global_debug()

void stasis_app_set_global_debug

(

int

debug

)

Enable/disable request/response and event logging on all applications.

Parameters

debug

If non-zero, enable debugging. If zero, disable.

Definition at line 887 of file res/stasis/app.c.

{
    global_debug = debug;
    if (!global_debug) {
        struct ao2_container *app_names = stasis_app_get_all();
        struct ao2_iterator it_app_names;
        char *app_name;
        struct stasis_app *app;
 
        if (!app_names || !ao2_container_count(app_names)) {
            ao2_cleanup(app_names);
            return;
        }
 
        it_app_names = ao2_iterator_init(app_names, 0);
        while ((app_name = ao2_iterator_next(&it_app_names))) {
            if ((app = stasis_app_get_by_name(app_name))) {
                stasis_app_set_debug(app, 0);
            }
 
            ao2_cleanup(app_name);
            ao2_cleanup(app);
        }
        ao2_iterator_cleanup(&it_app_names);
        ao2_cleanup(app_names);
    }
}

References ao2_cleanup, ao2_container_count(), ao2_iterator_cleanup(), ao2_iterator_init(), ao2_iterator_next, app, app_name(), debug, global_debug, stasis_app_get_all(), stasis_app_get_by_name(), and stasis_app_set_debug().

Referenced by ari_set_debug().

stasis_app_subscribe()

enum stasis_app_subscribe_res stasis_app_subscribe	(	const char *	app_name,
		const char **	event_source_uris,
		int	event_sources_count,
		struct ast_json **	json
	)

Subscribes an application to a list of event sources.

Parameters

app_name	Name of the application to subscribe.
event_source_uris	URIs for the event sources to subscribe to.
event_sources_count	Array size of event_source_uris.
json	Optional output pointer for JSON representation of the app after adding the subscription.

Returns

stasis_app_subscribe_res return code.

Note

Do not hold any channel locks if subscribing to a channel.

Definition at line 2124 of file res_stasis.c.

{
    return app_handle_subscriptions(
        app_name, event_source_uris, event_sources_count,
        json, app_subscribe);
}

References app_handle_subscriptions(), app_name(), and app_subscribe().

Referenced by ast_ari_applications_subscribe().

stasis_app_subscribe_channel()

enum stasis_app_subscribe_res stasis_app_subscribe_channel	(	const char *	app_name,
		struct ast_channel *	chan
	)

Directly subscribe an application to a channel.

Parameters

app_name	Name of the application to subscribe.
chan	The channel to subscribe to

Returns

stasis_app_subscribe_res return code.

Note

This method can be used when you already hold a channel and its lock. This bypasses the channel lookup that would normally be performed by stasis_app_subscribe.

Definition at line 2063 of file res_stasis.c.

{
    struct stasis_app *app = find_app_by_name(app_name);
    int res;
 
    if (!app) {
        return STASIS_ASR_APP_NOT_FOUND;
    }
 
    ast_debug(3, "%s: Subscribing to %s\n", app_name, ast_channel_uniqueid(chan));
 
    res = app_subscribe_channel(app, chan);
    ao2_ref(app, -1);
 
    if (res != 0) {
        ast_log(LOG_ERROR, "Error subscribing app '%s' to channel '%s'\n",
            app_name, ast_channel_uniqueid(chan));
        return STASIS_ASR_INTERNAL_ERROR;
    }
 
    return STASIS_ASR_OK;
}

References ao2_ref, app, app_name(), app_subscribe_channel(), ast_channel_uniqueid(), ast_debug, ast_log, find_app_by_name(), LOG_ERROR, STASIS_ASR_APP_NOT_FOUND, STASIS_ASR_INTERNAL_ERROR, and STASIS_ASR_OK.

Referenced by ari_channels_handle_originate_with_id(), and ast_ari_channels_create().

stasis_app_to_cli()

void stasis_app_to_cli	(	const struct stasis_app *	app,
		struct ast_cli_args *	a
	)

Dump properties of a stasis_app to the CLI.

Parameters

app	The application
a	The CLI arguments

Definition at line 1168 of file res/stasis/app.c.

{
    struct ao2_iterator *channels;
    struct ao2_iterator *endpoints;
    struct ao2_iterator *bridges;
    struct app_forwards *forward;
    enum forward_type forward_type;
 
    ast_cli(a->fd, "Name: %s\n"
        "  Debug: %s\n"
        "  Subscription Model: %s\n",
        app->name,
        app->debug ? "Yes" : "No",
        app->subscription_model == STASIS_APP_SUBSCRIBE_ALL ?
            "Global Resource Subscription" :
            "Application/Explicit Resource Subscription");
    ast_cli(a->fd, "  Subscriptions: %d\n", ao2_container_count(app->forwards));
 
    ast_cli(a->fd, "    Channels:\n");
    forward_type = FORWARD_CHANNEL;
    channels = ao2_callback(app->forwards, OBJ_MULTIPLE,
        forwards_filter_by_type, &forward_type);
    if (channels) {
        while ((forward = ao2_iterator_next(channels))) {
            ast_cli(a->fd, "      %s (%d)\n", forward->id, forward->interested);
            ao2_ref(forward, -1);
        }
        ao2_iterator_destroy(channels);
    }
 
    ast_cli(a->fd, "    Bridges:\n");
    forward_type = FORWARD_BRIDGE;
    bridges = ao2_callback(app->forwards, OBJ_MULTIPLE,
        forwards_filter_by_type, &forward_type);
    if (bridges) {
        while ((forward = ao2_iterator_next(bridges))) {
            ast_cli(a->fd, "      %s (%d)\n", forward->id, forward->interested);
            ao2_ref(forward, -1);
        }
        ao2_iterator_destroy(bridges);
    }
 
    ast_cli(a->fd, "    Endpoints:\n");
    forward_type = FORWARD_ENDPOINT;
    endpoints = ao2_callback(app->forwards, OBJ_MULTIPLE,
        forwards_filter_by_type, &forward_type);
    if (endpoints) {
        while ((forward = ao2_iterator_next(endpoints))) {
            ast_cli(a->fd, "      %s (%d)\n", forward->id, forward->interested);
            ao2_ref(forward, -1);
        }
        ao2_iterator_destroy(endpoints);
    }
}

References a, ao2_callback, ao2_container_count(), ao2_iterator_destroy(), ao2_iterator_next, ao2_ref, app, ast_cli(), bridges, channels, endpoints, FORWARD_BRIDGE, FORWARD_CHANNEL, FORWARD_ENDPOINT, forwards_filter_by_type(), app_forwards::id, app_forwards::interested, OBJ_MULTIPLE, and STASIS_APP_SUBSCRIBE_ALL.

Referenced by ari_show_app().

stasis_app_to_json()

struct ast_json * stasis_app_to_json

(

const char *

app_name

)

Return the JSON representation of a Stasis application.

Parameters

app_name

Name of the application.

Returns

JSON representation of app with given name.

Return values

NULL

on error.

Definition at line 1955 of file res_stasis.c.

{
    struct stasis_app *app = find_app_by_name(app_name);
    struct ast_json *json = stasis_app_object_to_json(app);
 
    ao2_cleanup(app);
 
    return json;
}

References ao2_cleanup, app, app_name(), find_app_by_name(), and stasis_app_object_to_json().

Referenced by append_json(), and ast_ari_applications_get().

stasis_app_unregister()

void stasis_app_unregister

(

const char *

app_name

)

Unregister a Stasis application and unsubscribe from all event sources.

Parameters

app_name

Name of the application to unregister.

Definition at line 1848 of file res_stasis.c.

{
    struct stasis_app *app;
    struct stasis_app_event_source *source;
    int res;
 
    if (!app_name) {
        return;
    }
 
    if (!apps_registry) {
        return;
    }
 
    app = ao2_find(apps_registry, app_name, OBJ_SEARCH_KEY);
    if (!app) {
        ast_log(LOG_ERROR,
            "Stasis app '%s' not registered\n", app_name);
        return;
    }
 
    /* Unsubscribe from all event sources. */
    AST_RWLIST_RDLOCK(&event_sources);
    AST_LIST_TRAVERSE(&event_sources, source, next) {
        if (!source->unsubscribe || !source->is_subscribed
            || !source->is_subscribed(app, NULL)) {
            continue;
        }
 
        res = source->unsubscribe(app, NULL);
        if (res) {
            ast_log(LOG_WARNING, "%s: Error unsubscribing from event source '%s'\n",
                app_name, source->scheme);
        }
    }
    AST_RWLIST_UNLOCK(&event_sources);
 
    app_deactivate(app);
 
    /* There's a decent chance that app is ready for cleanup. Go ahead
     * and clean up, just in case
     */
    cleanup();
 
    ao2_ref(app, -1);
}

References ao2_find, ao2_ref, app, app_deactivate(), app_name(), apps_registry, AST_LIST_TRAVERSE, ast_log, AST_RWLIST_RDLOCK, AST_RWLIST_UNLOCK, cleanup(), stasis_app_event_source::is_subscribed, LOG_ERROR, LOG_WARNING, stasis_app_event_source::next, NULL, OBJ_SEARCH_KEY, stasis_app_event_source::scheme, and stasis_app_event_source::unsubscribe.

Referenced by ari_ws_session_reset(), and AST_TEST_DEFINE().

stasis_app_unregister_event_source()

void stasis_app_unregister_event_source

(

struct stasis_app_event_source *

obj

)

Unregister an application event source.

Parameters

obj	the event source to unregister

Definition at line 1902 of file res_stasis.c.

{
    struct stasis_app_event_source *source;
 
    AST_RWLIST_WRLOCK(&event_sources);
    AST_RWLIST_TRAVERSE_SAFE_BEGIN(&event_sources, source, next) {
        if (source == obj) {
            AST_RWLIST_REMOVE_CURRENT(next);
            break;
        }
    }
    AST_RWLIST_TRAVERSE_SAFE_END;
    AST_RWLIST_UNLOCK(&event_sources);
}

References AST_RWLIST_REMOVE_CURRENT, AST_RWLIST_TRAVERSE_SAFE_BEGIN, AST_RWLIST_TRAVERSE_SAFE_END, AST_RWLIST_UNLOCK, AST_RWLIST_WRLOCK, and stasis_app_event_source::next.

Referenced by stasis_app_unregister_event_sources(), and unload_module().

stasis_app_unregister_event_sources()

void stasis_app_unregister_event_sources

(

void

)

Unregister core event sources.

Definition at line 1629 of file res/stasis/app.c.

{
    stasis_app_unregister_event_source(&endpoint_event_source);
    stasis_app_unregister_event_source(&bridge_event_source);
    stasis_app_unregister_event_source(&channel_event_source);
}

References bridge_event_source, channel_event_source, endpoint_event_source, and stasis_app_unregister_event_source().

Referenced by unload_module().

stasis_app_unsubscribe()

enum stasis_app_subscribe_res stasis_app_unsubscribe	(	const char *	app_name,
		const char **	event_source_uris,
		int	event_sources_count,
		struct ast_json **	json
	)

Unsubscribes an application from a list of event sources.

Parameters

app_name	Name of the application to subscribe.
event_source_uris	URIs for the event sources to subscribe to.
event_sources_count	Array size of event_source_uris.
json	Optional output pointer for JSON representation of the app after adding the subscription.

Returns

stasis_app_subscribe_res return code.

Definition at line 2165 of file res_stasis.c.

{
    return app_handle_subscriptions(
        app_name, event_source_uris, event_sources_count,
        json, app_unsubscribe);
}

References app_handle_subscriptions(), app_name(), and app_unsubscribe().

Referenced by ast_ari_applications_unsubscribe().

stasis_app_user_event()

enum stasis_app_user_event_res stasis_app_user_event	(	const char *	app_name,
		const char *	event_name,
		const char **	source_uris,
		int	sources_count,
		struct ast_json *	json_variables
	)

Generate a Userevent for stasis app (echo to AMI)

Parameters

app_name	Name of the application to generate event for/to.
event_name	Name of the Userevent.
source_uris	URIs for the source objects to attach to event.
sources_count	Array size of source_uris.
json_variables	event blob variables.

Returns

stasis_app_user_event_res return code.

Definition at line 2174 of file res_stasis.c.

{
    RAII_VAR(struct stasis_app *, app, find_app_by_name(app_name), ao2_cleanup);
    struct ast_json *blob = NULL;
    struct ast_multi_object_blob *multi;
    struct stasis_message *message;
    enum stasis_app_user_event_res res = STASIS_APP_USER_INTERNAL_ERROR;
    int have_channel = 0;
    int i;
 
    if (!app) {
        ast_log(LOG_WARNING, "App %s not found\n", app_name);
        return STASIS_APP_USER_APP_NOT_FOUND;
    }
 
    if (!ast_multi_user_event_type()) {
        return res;
    }
 
    if (json_variables) {
        struct ast_json *json_value = ast_json_string_create(event_name);
 
        if (json_value && !ast_json_object_set(json_variables, "eventname", json_value)) {
            blob = ast_json_ref(json_variables);
        }
    } else {
        blob = ast_json_pack("{s: s}", "eventname", event_name);
    }
 
    if (!blob) {
        ast_log(LOG_ERROR, "Failed to initialize blob\n");
 
        return res;
    }
 
    multi = ast_multi_object_blob_create(blob);
    ast_json_unref(blob);
    if (!multi) {
        ast_log(LOG_ERROR, "Failed to initialize multi\n");
 
        return res;
    }
 
    for (i = 0; i < sources_count; ++i) {
        const char *uri = source_uris[i];
        void *snapshot=NULL;
        enum stasis_user_multi_object_snapshot_type type;
 
        if (ast_begins_with(uri, "channel:")) {
            type = STASIS_UMOS_CHANNEL;
            snapshot = ast_channel_snapshot_get_latest(uri + 8);
            have_channel = 1;
        } else if (ast_begins_with(uri, "bridge:")) {
            type = STASIS_UMOS_BRIDGE;
            snapshot = ast_bridge_get_snapshot_by_uniqueid(uri + 7);
        } else if (ast_begins_with(uri, "endpoint:")) {
            type = STASIS_UMOS_ENDPOINT;
            snapshot = ast_endpoint_latest_snapshot(uri + 9, NULL);
        } else {
            ast_log(LOG_WARNING, "Invalid scheme: %s\n", uri);
            ao2_ref(multi, -1);
 
            return STASIS_APP_USER_EVENT_SOURCE_BAD_SCHEME;
        }
        if (!snapshot) {
            ast_log(LOG_ERROR, "Unable to get snapshot for %s\n", uri);
            ao2_ref(multi, -1);
 
            return STASIS_APP_USER_EVENT_SOURCE_NOT_FOUND;
        }
        ast_multi_object_blob_add(multi, type, snapshot);
    }
 
    message = stasis_message_create(ast_multi_user_event_type(), multi);
    ao2_ref(multi, -1);
 
    if (!message) {
        ast_log(LOG_ERROR, "Unable to create stasis user event message\n");
        return res;
    }
 
    /*
     * Publishing to two different topics is normally to be avoided -- except
     * in this case both are final destinations with no forwards (only listeners).
     * The message has to be delivered to the application topic for ARI, but a
     * copy is also delivered directly to the manager for AMI if there is a channel.
     */
    stasis_publish(ast_app_get_topic(app), message);
 
    if (have_channel) {
        stasis_publish(ast_manager_get_topic(), message);
    }
    ao2_ref(message, -1);
 
    return STASIS_APP_USER_OK;
}

References ao2_cleanup, ao2_ref, app, app_name(), ast_app_get_topic(), ast_begins_with(), ast_bridge_get_snapshot_by_uniqueid(), ast_channel_snapshot_get_latest(), ast_endpoint_latest_snapshot(), ast_json_object_set(), ast_json_pack(), ast_json_ref(), ast_json_string_create(), ast_json_unref(), ast_log, ast_manager_get_topic(), ast_multi_object_blob_add(), ast_multi_object_blob_create(), ast_multi_user_event_type(), find_app_by_name(), LOG_ERROR, LOG_WARNING, NULL, RAII_VAR, STASIS_APP_USER_APP_NOT_FOUND, STASIS_APP_USER_EVENT_SOURCE_BAD_SCHEME, STASIS_APP_USER_EVENT_SOURCE_NOT_FOUND, STASIS_APP_USER_INTERNAL_ERROR, STASIS_APP_USER_OK, stasis_message_create(), stasis_publish(), STASIS_UMOS_BRIDGE, STASIS_UMOS_CHANNEL, STASIS_UMOS_ENDPOINT, and type.

Referenced by ast_ari_events_user_event().