713 lines
35 KiB
C
713 lines
35 KiB
C
/*
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* FreeSWITCH Modular Media Switching Software Library / Soft-Switch Application
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* Copyright (C) 2005-2014, Anthony Minessale II <anthm@freeswitch.org>
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*
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* Version: MPL 1.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is FreeSWITCH Modular Media Switching Software Library / Soft-Switch Application
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*
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* The Initial Developer of the Original Code is
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* Anthony Minessale II <anthm@freeswitch.org>
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* Portions created by the Initial Developer are Copyright (C)
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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*
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* Anthony Minessale II <anthm@freeswitch.org>
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*
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*
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* switch_channel.h -- Media Channel Interface
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*
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*/
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/**
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* @file switch_channel.h
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* @brief Media Channel Interface
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* @see switch_channel
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*/
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#ifndef SWITCH_CHANNEL_H
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#define SWITCH_CHANNEL_H
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#include <switch.h>
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SWITCH_BEGIN_EXTERN_C struct switch_channel_timetable {
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switch_time_t profile_created;
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switch_time_t created;
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switch_time_t answered;
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switch_time_t progress;
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switch_time_t progress_media;
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switch_time_t hungup;
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switch_time_t transferred;
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switch_time_t resurrected;
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switch_time_t bridged;
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switch_time_t last_hold;
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switch_time_t hold_accum;
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struct switch_channel_timetable *next;
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};
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typedef struct switch_channel_timetable switch_channel_timetable_t;
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/**
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* @defgroup switch_channel Channel Functions
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* @ingroup core1
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* The switch_channel object is a private entity that belongs to a session that contains the call
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* specific information such as the call state, variables, caller profiles and DTMF queue
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* @{
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*/
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/*!
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\brief Get the current state of a channel in the state engine
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\param channel channel to retrieve state from
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\return current state of channel
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*/
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SWITCH_DECLARE(switch_channel_state_t) switch_channel_get_state(switch_channel_t *channel);
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SWITCH_DECLARE(switch_channel_state_t) switch_channel_get_running_state(switch_channel_t *channel);
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SWITCH_DECLARE(int) switch_channel_check_signal(switch_channel_t *channel, switch_bool_t in_thread_only);
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/*!
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\brief Determine if a channel is ready for io
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\param channel channel to test
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\return true if the channel is ready
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*/
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SWITCH_DECLARE(int) switch_channel_test_ready(switch_channel_t *channel, switch_bool_t check_ready, switch_bool_t check_media);
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#define switch_channel_ready(_channel) switch_channel_test_ready(_channel, SWITCH_TRUE, SWITCH_FALSE)
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#define switch_channel_media_ready(_channel) switch_channel_test_ready(_channel, SWITCH_TRUE, SWITCH_TRUE)
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#define switch_channel_media_up(_channel) (switch_channel_test_flag(_channel, CF_ANSWERED) || switch_channel_test_flag(_channel, CF_EARLY_MEDIA))
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#define switch_channel_up(_channel) (switch_channel_check_signal(_channel, SWITCH_TRUE) || switch_channel_get_state(_channel) < CS_HANGUP)
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#define switch_channel_down(_channel) (switch_channel_check_signal(_channel, SWITCH_TRUE) || switch_channel_get_state(_channel) >= CS_HANGUP)
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#define switch_channel_up_nosig(_channel) (switch_channel_get_state(_channel) < CS_HANGUP)
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#define switch_channel_down_nosig(_channel) (switch_channel_get_state(_channel) >= CS_HANGUP)
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#define switch_channel_media_ack(_channel) (!switch_channel_test_cap(_channel, CC_MEDIA_ACK) || switch_channel_test_flag(_channel, CF_MEDIA_ACK))
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#define switch_channel_text_only(_channel) (switch_channel_test_flag(_channel, CF_HAS_TEXT) && !switch_channel_test_flag(_channel, CF_AUDIO))
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SWITCH_DECLARE(void) switch_channel_wait_for_state(switch_channel_t *channel, switch_channel_t *other_channel, switch_channel_state_t want_state);
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SWITCH_DECLARE(void) switch_channel_wait_for_state_timeout(switch_channel_t *other_channel, switch_channel_state_t want_state, uint32_t timeout);
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SWITCH_DECLARE(switch_status_t) switch_channel_wait_for_flag(switch_channel_t *channel,
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switch_channel_flag_t want_flag,
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switch_bool_t pres, uint32_t to, switch_channel_t *super_channel);
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SWITCH_DECLARE(switch_channel_state_t) switch_channel_perform_set_state(switch_channel_t *channel,
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const char *file, const char *func, int line, switch_channel_state_t state);
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SWITCH_DECLARE(switch_channel_state_t) switch_channel_perform_set_running_state(switch_channel_t *channel, switch_channel_state_t state,
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const char *file, const char *func, int line);
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#define switch_channel_set_running_state(channel, state) switch_channel_perform_set_running_state(channel, state, __FILE__, __SWITCH_FUNC__, __LINE__)
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/*!
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\brief Set the current state of a channel
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\param channel channel to set state of
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\param state new state
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\return current state of channel after application of new state
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*/
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#define switch_channel_set_state(channel, state) switch_channel_perform_set_state(channel, __FILE__, __SWITCH_FUNC__, __LINE__, state)
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/*!
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\brief return a cause code for a given string
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\param str the string to check
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\return the code
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*/
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SWITCH_DECLARE(switch_call_cause_t) switch_channel_str2cause(_In_ const char *str);
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/*!
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\brief return the cause code for a given channel
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\param channel the channel
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\return the code
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*/
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SWITCH_DECLARE(switch_call_cause_t) switch_channel_get_cause(_In_ switch_channel_t *channel);
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SWITCH_DECLARE(switch_call_cause_t) switch_channel_cause_q850(switch_call_cause_t cause);
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SWITCH_DECLARE(switch_call_cause_t) switch_channel_get_cause_q850(switch_channel_t *channel);
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SWITCH_DECLARE(switch_call_cause_t *) switch_channel_get_cause_ptr(switch_channel_t *channel);
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/*!
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\brief return a cause string for a given cause
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\param cause the code to check
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\return the string
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*/
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SWITCH_DECLARE(const char *) switch_channel_cause2str(_In_ switch_call_cause_t cause);
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/*!
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\brief View the timetable of a channel
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\param channel channel to retrieve timetable from
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\return a pointer to the channel's timetable (created, answered, etc..)
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*/
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SWITCH_DECLARE(switch_channel_timetable_t *) switch_channel_get_timetable(_In_ switch_channel_t *channel);
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/*!
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\brief Allocate a new channel
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\param channel NULL pointer to allocate channel to
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\param pool memory_pool to use for allocation
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\return SWITCH_STATUS_SUCCESS if successful
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*/
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SWITCH_DECLARE(switch_status_t) switch_channel_alloc(_In_ switch_channel_t **channel, _In_ switch_call_direction_t direction,
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_In_ switch_memory_pool_t *pool);
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/*!
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\brief Connect a newly allocated channel to a session object and setup it's initial state
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\param channel the channel to initilize
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\param session the session to connect the channel to
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\param state the initial state of the channel
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\param flags the initial channel flags
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*/
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SWITCH_DECLARE(switch_status_t) switch_channel_init(switch_channel_t *channel, switch_core_session_t *session, switch_channel_state_t state,
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switch_channel_flag_t flag);
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/*!
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\brief Takes presence_data_cols as a parameter or as a channel variable and copies them to channel profile variables
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\param channel the channel on which to set the channel profile variables
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\param presence_data_cols is a colon separated list of channel variables to copy to channel profile variables
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*/
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SWITCH_DECLARE(void) switch_channel_set_presence_data_vals(switch_channel_t *channel, const char *presence_data_cols);
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/*!
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\brief Fire A presence event for the channel
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\param channel the channel to initilize
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\param rpid the rpid if for the icon to use
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\param status the status message
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\param id presence id
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*/
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SWITCH_DECLARE(void) switch_channel_perform_presence(switch_channel_t *channel, const char *rpid, const char *status, const char *id,
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const char *file, const char *func, int line);
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#define switch_channel_presence(_a, _b, _c, _d) switch_channel_perform_presence(_a, _b, _c, _d, __FILE__, __SWITCH_FUNC__, __LINE__)
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/*!
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\brief Uninitalize a channel
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\param channel the channel to uninit
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*/
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SWITCH_DECLARE(void) switch_channel_uninit(switch_channel_t *channel);
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/*!
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\brief Set the given channel's caller profile
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\param channel channel to assign the profile to
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\param caller_profile the profile to assign
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*/
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SWITCH_DECLARE(void) switch_channel_set_caller_profile(switch_channel_t *channel, switch_caller_profile_t *caller_profile);
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SWITCH_DECLARE(void) switch_channel_step_caller_profile(switch_channel_t *channel);
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/*!
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\brief Retrieve the given channel's caller profile
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\param channel channel to retrieve the profile from
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\return the requested profile
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*/
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SWITCH_DECLARE(switch_caller_profile_t *) switch_channel_get_caller_profile(switch_channel_t *channel);
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/*!
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\brief Set the given channel's originator caller profile
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\param channel channel to assign the profile to
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\param caller_profile the profile to assign
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*/
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SWITCH_DECLARE(void) switch_channel_set_originator_caller_profile(switch_channel_t *channel, switch_caller_profile_t *caller_profile);
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SWITCH_DECLARE(void) switch_channel_set_hunt_caller_profile(switch_channel_t *channel, switch_caller_profile_t *caller_profile);
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/*!
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\brief Retrieve the given channel's originator caller profile
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\param channel channel to retrieve the profile from
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\return the requested profile
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*/
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SWITCH_DECLARE(switch_caller_profile_t *) switch_channel_get_originator_caller_profile(switch_channel_t *channel);
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/*!
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\brief Set the given channel's originatee caller profile
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\param channel channel to assign the profile to
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\param caller_profile the profile to assign
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*/
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SWITCH_DECLARE(void) switch_channel_set_originatee_caller_profile(switch_channel_t *channel, switch_caller_profile_t *caller_profile);
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/*!
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\brief Retrieve the given channel's originatee caller profile
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\param channel channel to retrieve the profile from
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\return the requested profile
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*/
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SWITCH_DECLARE(switch_caller_profile_t *) switch_channel_get_originatee_caller_profile(switch_channel_t *channel);
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/*!
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\brief Set the given channel's origination caller profile
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\param channel channel to assign the profile to
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\param caller_profile the profile to assign
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*/
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SWITCH_DECLARE(void) switch_channel_set_origination_caller_profile(switch_channel_t *channel, switch_caller_profile_t *caller_profile);
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/*!
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\brief Retrieve the given channel's origination caller profile
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\param channel channel to retrieve the profile from
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\return the requested profile
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*/
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SWITCH_DECLARE(switch_caller_profile_t *) switch_channel_get_origination_caller_profile(switch_channel_t *channel);
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/*!
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\brief Retrieve the given channel's unique id
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\param channel channel to retrieve the unique id from
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\return the unique id
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*/
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SWITCH_DECLARE(char *) switch_channel_get_uuid(switch_channel_t *channel);
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/*!
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\brief Set a variable on a given channel
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\param channel channel to set variable on
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\param varname the name of the variable
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\param value the value of the variable
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\returns SWITCH_STATUS_SUCCESS if successful
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*/
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SWITCH_DECLARE(switch_status_t) switch_channel_set_profile_var(switch_channel_t *channel, const char *name, const char *val);
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SWITCH_DECLARE(switch_status_t) switch_channel_set_variable_var_check(switch_channel_t *channel,
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const char *varname, const char *value, switch_bool_t var_check);
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SWITCH_DECLARE(switch_status_t) switch_channel_add_variable_var_check(switch_channel_t *channel,
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const char *varname, const char *value, switch_bool_t var_check, switch_stack_t stack);
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SWITCH_DECLARE(switch_status_t) switch_channel_set_variable_printf(switch_channel_t *channel, const char *varname, const char *fmt, ...);
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SWITCH_DECLARE(switch_status_t) switch_channel_set_variable_name_printf(switch_channel_t *channel, const char *val, const char *fmt, ...);
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SWITCH_DECLARE(switch_status_t) switch_channel_set_variable_partner_var_check(switch_channel_t *channel,
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const char *varname, const char *value, switch_bool_t var_check);
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SWITCH_DECLARE(const char *) switch_channel_get_variable_partner(switch_channel_t *channel, const char *varname);
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SWITCH_DECLARE(const char *) switch_channel_get_hold_music(switch_channel_t *channel);
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SWITCH_DECLARE(const char *) switch_channel_get_hold_music_partner(switch_channel_t *channel);
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SWITCH_DECLARE(uint32_t) switch_channel_del_variable_prefix(switch_channel_t *channel, const char *prefix);
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SWITCH_DECLARE(switch_status_t) switch_channel_transfer_variable_prefix(switch_channel_t *orig_channel, switch_channel_t *new_channel, const char *prefix);
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#define switch_channel_set_variable_safe(_channel, _var, _val) switch_channel_set_variable_var_check(_channel, _var, _val, SWITCH_FALSE)
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#define switch_channel_set_variable(_channel, _var, _val) switch_channel_set_variable_var_check(_channel, _var, _val, SWITCH_TRUE)
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#define switch_channel_set_variable_partner(_channel, _var, _val) switch_channel_set_variable_partner_var_check(_channel, _var, _val, SWITCH_TRUE)
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SWITCH_DECLARE(switch_status_t) switch_channel_export_variable_var_check(switch_channel_t *channel,
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const char *varname, const char *val,
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const char *export_varname,
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switch_bool_t var_check);
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SWITCH_DECLARE(void) switch_channel_process_export(switch_channel_t *channel, switch_channel_t *peer_channel,
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switch_event_t *var_event, const char *export_varname);
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#define switch_channel_export_variable(_channel, _varname, _value, _ev) switch_channel_export_variable_var_check(_channel, _varname, _value, _ev, SWITCH_TRUE)
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SWITCH_DECLARE(switch_status_t) switch_channel_export_variable_printf(switch_channel_t *channel, const char *varname,
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const char *export_varname, const char *fmt, ...);
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SWITCH_DECLARE(void) switch_channel_set_scope_variables(switch_channel_t *channel, switch_event_t **event);
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SWITCH_DECLARE(switch_status_t) switch_channel_get_scope_variables(switch_channel_t *channel, switch_event_t **event);
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/*!
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\brief Retrieve a variable from a given channel
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\param channel channel to retrieve variable from
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\param varname the name of the variable
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\return the value of the requested variable
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*/
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SWITCH_DECLARE(const char *) switch_channel_get_variable_dup(switch_channel_t *channel, const char *varname, switch_bool_t dup, int idx);
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#define switch_channel_get_variable(_c, _v) switch_channel_get_variable_dup(_c, _v, SWITCH_TRUE, -1)
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SWITCH_DECLARE(switch_status_t) switch_channel_get_variables(switch_channel_t *channel, switch_event_t **event);
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SWITCH_DECLARE(switch_status_t) switch_channel_pass_callee_id(switch_channel_t *channel, switch_channel_t *other_channel);
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static inline int switch_channel_var_false(switch_channel_t *channel, const char *variable) {
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return switch_false(switch_channel_get_variable_dup(channel, variable, SWITCH_FALSE, -1));
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}
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static inline int switch_channel_var_true(switch_channel_t *channel, const char *variable) {
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return switch_true(switch_channel_get_variable_dup(channel, variable, SWITCH_FALSE, -1));
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}
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/*!
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* \brief Start iterating over the entries in the channel variable list.
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* \param channel the channel to iterate the variables for
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* \remark This function locks the profile mutex, use switch_channel_variable_last to unlock
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*/
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SWITCH_DECLARE(switch_event_header_t *) switch_channel_variable_first(switch_channel_t *channel);
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/*!
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* \brief Stop iterating over channel variables.
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* \remark Unlocks the profile mutex initially locked in switch_channel_variable_first
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*/
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SWITCH_DECLARE(void) switch_channel_variable_last(switch_channel_t *channel);
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SWITCH_DECLARE(void) switch_channel_restart(switch_channel_t *channel);
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SWITCH_DECLARE(switch_status_t) switch_channel_caller_extension_masquerade(switch_channel_t *orig_channel, switch_channel_t *new_channel, uint32_t offset);
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/*!
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\brief Assign a caller extension to a given channel
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\param channel channel to assign extension to
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\param caller_extension extension to assign
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*/
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SWITCH_DECLARE(void) switch_channel_set_caller_extension(switch_channel_t *channel, switch_caller_extension_t *caller_extension);
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SWITCH_DECLARE(void) switch_channel_invert_cid(switch_channel_t *channel);
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SWITCH_DECLARE(void) switch_channel_flip_cid(switch_channel_t *channel);
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SWITCH_DECLARE(void) switch_channel_sort_cid(switch_channel_t *channel);
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/*!
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\brief Retrieve caller extension from a given channel
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\param channel channel to retrieve extension from
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\return the requested extension
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*/
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SWITCH_DECLARE(switch_caller_extension_t *) switch_channel_get_caller_extension(switch_channel_t *channel);
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/*!
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\brief Test for presence of given flag on a given channel
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\param channel channel to test
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\param flag to test
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\return TRUE if flags were present
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*/
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SWITCH_DECLARE(uint32_t) switch_channel_test_flag(switch_channel_t *channel, switch_channel_flag_t flag);
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/*!
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\brief Set given flag(s) on a given channel
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\param channel channel on which to set flag
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\param flag or'd list of flags to set
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*/
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SWITCH_DECLARE(void) switch_channel_set_flag_value(switch_channel_t *channel, switch_channel_flag_t flag, uint32_t value);
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#define switch_channel_set_flag(_c, _f) switch_channel_set_flag_value(_c, _f, 1)
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SWITCH_DECLARE(void) switch_channel_set_flag_recursive(switch_channel_t *channel, switch_channel_flag_t flag);
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SWITCH_DECLARE(void) switch_channel_set_cap_value(switch_channel_t *channel, switch_channel_cap_t cap, uint32_t value);
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#define switch_channel_set_cap(_c, _cc) switch_channel_set_cap_value(_c, _cc, 1)
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SWITCH_DECLARE(void) switch_channel_clear_cap(switch_channel_t *channel, switch_channel_cap_t cap);
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SWITCH_DECLARE(uint32_t) switch_channel_test_cap(switch_channel_t *channel, switch_channel_cap_t cap);
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SWITCH_DECLARE(uint32_t) switch_channel_test_cap_partner(switch_channel_t *channel, switch_channel_cap_t cap);
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/*!
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\brief Set given flag(s) on a given channel's bridge partner
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\param channel channel to derive the partner channel to set flag on
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\param flag to set
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\return true if the flag was set
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*/
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SWITCH_DECLARE(switch_bool_t) switch_channel_set_flag_partner(switch_channel_t *channel, switch_channel_flag_t flag);
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/*!
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\brief Clears given flag(s) on a given channel's bridge partner
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\param channel channel to derive the partner channel to clear flag(s) from
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\param flag the flag to clear
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\return true if the flag was cleared
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*/
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SWITCH_DECLARE(switch_bool_t) switch_channel_clear_flag_partner(switch_channel_t *channel, switch_channel_flag_t flag);
|
|
|
|
SWITCH_DECLARE(uint32_t) switch_channel_test_flag_partner(switch_channel_t *channel, switch_channel_flag_t flag);
|
|
|
|
/*!
|
|
\brief Set given flag(s) on a given channel to be applied on the next state change
|
|
\param channel channel on which to set flag(s)
|
|
\param flag flag to set
|
|
*/
|
|
SWITCH_DECLARE(void) switch_channel_set_state_flag(switch_channel_t *channel, switch_channel_flag_t flag);
|
|
SWITCH_DECLARE(void) switch_channel_clear_state_flag(switch_channel_t *channel, switch_channel_flag_t flag);
|
|
|
|
/*!
|
|
\brief Clear given flag(s) from a channel
|
|
\param channel channel to clear flags from
|
|
\param flag flag to clear
|
|
*/
|
|
SWITCH_DECLARE(void) switch_channel_clear_flag(switch_channel_t *channel, switch_channel_flag_t flag);
|
|
|
|
SWITCH_DECLARE(void) switch_channel_clear_flag_recursive(switch_channel_t *channel, switch_channel_flag_t flag);
|
|
|
|
SWITCH_DECLARE(switch_status_t) switch_channel_perform_answer(switch_channel_t *channel, const char *file, const char *func, int line);
|
|
|
|
SWITCH_DECLARE(switch_status_t) switch_channel_perform_mark_answered(switch_channel_t *channel, const char *file, const char *func, int line);
|
|
SWITCH_DECLARE(void) switch_channel_check_zrtp(switch_channel_t *channel);
|
|
|
|
/*!
|
|
\brief Answer a channel (initiate/acknowledge a successful connection)
|
|
\param channel channel to answer
|
|
\return SWITCH_STATUS_SUCCESS if channel was answered successfully
|
|
*/
|
|
#define switch_channel_answer(channel) switch_channel_perform_answer(channel, __FILE__, __SWITCH_FUNC__, __LINE__)
|
|
|
|
/*!
|
|
\brief Mark a channel answered with no indication (for outbound calls)
|
|
\param channel channel to mark answered
|
|
\return SWITCH_STATUS_SUCCESS if channel was answered successfully
|
|
*/
|
|
#define switch_channel_mark_answered(channel) switch_channel_perform_mark_answered(channel, __FILE__, __SWITCH_FUNC__, __LINE__)
|
|
|
|
/*!
|
|
\brief Mark a channel pre_answered (early media) with no indication (for outbound calls)
|
|
\param channel channel to mark pre_answered
|
|
\return SWITCH_STATUS_SUCCESS if channel was pre_answered successfully
|
|
*/
|
|
#define switch_channel_mark_pre_answered(channel) switch_channel_perform_mark_pre_answered(channel, __FILE__, __SWITCH_FUNC__, __LINE__)
|
|
|
|
SWITCH_DECLARE(switch_status_t) switch_channel_perform_acknowledge_call(switch_channel_t *channel,
|
|
const char *file, const char *func, int line);
|
|
#define switch_channel_acknowledge_call(channel) switch_channel_perform_acknowledge_call(channel, __FILE__, __SWITCH_FUNC__, __LINE__)
|
|
|
|
SWITCH_DECLARE(switch_status_t) switch_channel_perform_ring_ready_value(switch_channel_t *channel,
|
|
switch_ring_ready_t rv,
|
|
const char *file, const char *func, int line);
|
|
/*!
|
|
\brief Send Ringing message to a channel
|
|
\param channel channel to ring
|
|
\return SWITCH_STATUS_SUCCESS if successful
|
|
*/
|
|
#define switch_channel_ring_ready(channel) switch_channel_perform_ring_ready_value(channel, SWITCH_RING_READY_RINGING, __FILE__, __SWITCH_FUNC__, __LINE__)
|
|
#define switch_channel_ring_ready_value(channel, _rv) \
|
|
switch_channel_perform_ring_ready_value(channel, _rv, __FILE__, __SWITCH_FUNC__, __LINE__)
|
|
|
|
|
|
SWITCH_DECLARE(switch_status_t) switch_channel_perform_pre_answer(switch_channel_t *channel, const char *file, const char *func, int line);
|
|
|
|
SWITCH_DECLARE(switch_status_t) switch_channel_perform_mark_pre_answered(switch_channel_t *channel, const char *file, const char *func, int line);
|
|
|
|
SWITCH_DECLARE(switch_status_t) switch_channel_perform_mark_ring_ready_value(switch_channel_t *channel,
|
|
switch_ring_ready_t rv,
|
|
const char *file, const char *func, int line);
|
|
|
|
/*!
|
|
\brief Indicate progress on a channel to attempt early media
|
|
\param channel channel to pre-answer
|
|
\return SWITCH_STATUS_SUCCESS
|
|
*/
|
|
#define switch_channel_pre_answer(channel) switch_channel_perform_pre_answer(channel, __FILE__, __SWITCH_FUNC__, __LINE__)
|
|
|
|
/*!
|
|
\brief Indicate a channel is ready to provide ringback
|
|
\param channel channel
|
|
\return SWITCH_STATUS_SUCCESS
|
|
*/
|
|
#define switch_channel_mark_ring_ready(channel) \
|
|
switch_channel_perform_mark_ring_ready_value(channel, SWITCH_RING_READY_RINGING, __FILE__, __SWITCH_FUNC__, __LINE__)
|
|
|
|
#define switch_channel_mark_ring_ready_value(channel, _rv) \
|
|
switch_channel_perform_mark_ring_ready_value(channel, _rv, __FILE__, __SWITCH_FUNC__, __LINE__)
|
|
|
|
/*!
|
|
\brief add a state handler table to a given channel
|
|
\param channel channel on which to add the state handler table
|
|
\param state_handler table of state handler functions
|
|
\return the index number/priority of the table negative value indicates failure
|
|
*/
|
|
SWITCH_DECLARE(int) switch_channel_add_state_handler(switch_channel_t *channel, const switch_state_handler_table_t *state_handler);
|
|
|
|
/*!
|
|
\brief clear a state handler table from a given channel
|
|
\param channel channel from which to clear the state handler table
|
|
\param state_handler table of state handler functions
|
|
*/
|
|
SWITCH_DECLARE(void) switch_channel_clear_state_handler(switch_channel_t *channel, const switch_state_handler_table_t *state_handler);
|
|
|
|
/*!
|
|
\brief Retrieve an state handler tablefrom a given channel at given index level
|
|
\param channel channel from which to retrieve the state handler table
|
|
\param index the index of the state handler table (start from 0)
|
|
\return given channel's state handler table at given index or NULL if requested index does not exist.
|
|
*/
|
|
SWITCH_DECLARE(const switch_state_handler_table_t *) switch_channel_get_state_handler(switch_channel_t *channel, int index);
|
|
|
|
/*!
|
|
\brief Set private data on channel
|
|
\param channel channel on which to set data
|
|
\param key unique keyname to associate your private data to
|
|
\param private_info void pointer to private data
|
|
\return SWITCH_STATUS_SUCCESS if data was set
|
|
\remarks set NULL to delete your private data
|
|
*/
|
|
SWITCH_DECLARE(switch_status_t) switch_channel_set_private(switch_channel_t *channel, const char *key, const void *private_info);
|
|
|
|
/*!
|
|
\brief Retrieve private from a given channel
|
|
\param channel channel to retrieve data from
|
|
\param key unique keyname to retrieve your private data
|
|
\return void pointer to channel's private data
|
|
*/
|
|
SWITCH_DECLARE(void *) switch_channel_get_private(switch_channel_t *channel, const char *key);
|
|
SWITCH_DECLARE(void *) switch_channel_get_private_partner(switch_channel_t *channel, const char *key);
|
|
|
|
/*!
|
|
\brief Assign a name to a given channel
|
|
\param channel channel to assign name to
|
|
\param name name to assign
|
|
\return SWITCH_STATUS_SUCCESS if name was assigned
|
|
*/
|
|
SWITCH_DECLARE(switch_status_t) switch_channel_set_name(switch_channel_t *channel, const char *name);
|
|
|
|
/*!
|
|
\brief Retrieve the name of a given channel
|
|
\param channel channel to get name of
|
|
\return the channel's name
|
|
*/
|
|
SWITCH_DECLARE(char *) switch_channel_get_name(switch_channel_t *channel);
|
|
|
|
|
|
SWITCH_DECLARE(switch_channel_state_t) switch_channel_perform_hangup(switch_channel_t *channel,
|
|
const char *file, const char *func, int line, switch_call_cause_t hangup_cause);
|
|
|
|
/*!
|
|
\brief Hangup a channel flagging it's state machine to end
|
|
\param channel channel to hangup
|
|
\param hangup_cause the appropriate hangup cause
|
|
\return the resulting channel state.
|
|
*/
|
|
#define switch_channel_hangup(channel, hangup_cause) switch_channel_perform_hangup(channel, __FILE__, __SWITCH_FUNC__, __LINE__, hangup_cause)
|
|
|
|
/*!
|
|
\brief Test for presence of DTMF on a given channel
|
|
\param channel channel to test
|
|
\return number of digits in the queue
|
|
*/
|
|
SWITCH_DECLARE(switch_size_t) switch_channel_has_dtmf(_In_ switch_channel_t *channel);
|
|
SWITCH_DECLARE(switch_status_t) switch_channel_dtmf_lock(switch_channel_t *channel);
|
|
SWITCH_DECLARE(switch_status_t) switch_channel_try_dtmf_lock(switch_channel_t *channel);
|
|
SWITCH_DECLARE(switch_status_t) switch_channel_dtmf_unlock(switch_channel_t *channel);
|
|
|
|
|
|
/*!
|
|
\brief Queue DTMF on a given channel
|
|
\param channel channel to queue DTMF to
|
|
\param dtmf digit
|
|
\return SWITCH_STATUS_SUCCESS if successful
|
|
*/
|
|
SWITCH_DECLARE(switch_status_t) switch_channel_queue_dtmf(_In_ switch_channel_t *channel, _In_ const switch_dtmf_t *dtmf);
|
|
SWITCH_DECLARE(switch_status_t) switch_channel_queue_dtmf_string(_In_ switch_channel_t *channel, _In_ const char *dtmf_string);
|
|
|
|
/*!
|
|
\brief Retrieve DTMF digits from a given channel
|
|
\param channel channel to retrieve digits from
|
|
\param dtmf digit
|
|
\return number of bytes read into the buffer
|
|
*/
|
|
SWITCH_DECLARE(switch_status_t) switch_channel_dequeue_dtmf(_In_ switch_channel_t *channel, _In_ switch_dtmf_t *dtmf);
|
|
SWITCH_DECLARE(void) switch_channel_flush_dtmf(_In_ switch_channel_t *channel);
|
|
SWITCH_DECLARE(switch_size_t) switch_channel_dequeue_dtmf_string(_In_ switch_channel_t *channel, _Out_opt_bytecapcount_(len)
|
|
char *dtmf_str, _In_ switch_size_t len);
|
|
|
|
/*!
|
|
\brief Render the name of the provided state enum
|
|
\param state state to get name of
|
|
\return the string representation of the state
|
|
*/
|
|
SWITCH_DECLARE(const char *) switch_channel_state_name(_In_ switch_channel_state_t state);
|
|
|
|
/*!
|
|
\brief Render the enum of the provided state name
|
|
\param name the name of the state
|
|
\return the enum value (numeric)
|
|
*/
|
|
SWITCH_DECLARE(switch_channel_state_t) switch_channel_name_state(_In_ const char *name);
|
|
|
|
/*!
|
|
\brief Add information about a given channel to an event object
|
|
\param channel channel to add information about
|
|
\param event event to add information to
|
|
*/
|
|
SWITCH_DECLARE(void) switch_channel_event_set_data(_In_ switch_channel_t *channel, _In_ switch_event_t *event);
|
|
|
|
SWITCH_DECLARE(void) switch_channel_event_set_basic_data(_In_ switch_channel_t *channel, _In_ switch_event_t *event);
|
|
SWITCH_DECLARE(void) switch_channel_event_set_extended_data(_In_ switch_channel_t *channel, _In_ switch_event_t *event);
|
|
|
|
/*!
|
|
\brief Expand varaibles in a string based on the variables in a paticular channel
|
|
\param channel channel to expand the variables from
|
|
\param in the original string
|
|
\return the original string if no expansion takes place otherwise a new string that must be freed
|
|
\note it's necessary to test if the return val is the same as the input and free the string if it is not.
|
|
*/
|
|
SWITCH_DECLARE(char *) switch_channel_expand_variables_check(switch_channel_t *channel, const char *in, switch_event_t *var_list, switch_event_t *api_list, uint32_t recur);
|
|
#define switch_channel_expand_variables(_channel, _in) switch_channel_expand_variables_check(_channel, _in, NULL, NULL, 0)
|
|
|
|
#define switch_channel_inbound_display(_channel) ((switch_channel_direction(_channel) == SWITCH_CALL_DIRECTION_INBOUND && !switch_channel_test_flag(_channel, CF_BLEG)) || (switch_channel_direction(_channel) == SWITCH_CALL_DIRECTION_OUTBOUND && switch_channel_test_flag(_channel, CF_DIALPLAN)))
|
|
|
|
#define switch_channel_outbound_display(_channel) ((switch_channel_direction(_channel) == SWITCH_CALL_DIRECTION_INBOUND && switch_channel_test_flag(_channel, CF_BLEG)) || (switch_channel_direction(_channel) == SWITCH_CALL_DIRECTION_OUTBOUND && !switch_channel_test_flag(_channel, CF_DIALPLAN)))
|
|
|
|
SWITCH_DECLARE(char *) switch_channel_build_param_string(_In_ switch_channel_t *channel, _In_opt_ switch_caller_profile_t *caller_profile,
|
|
_In_opt_ const char *prefix);
|
|
SWITCH_DECLARE(switch_status_t) switch_channel_set_timestamps(_In_ switch_channel_t *channel);
|
|
|
|
#define switch_channel_stop_broadcast(_channel) for(;;) {if (switch_channel_test_flag(_channel, CF_BROADCAST)) {switch_channel_set_flag(_channel, CF_STOP_BROADCAST); switch_channel_set_flag(_channel, CF_BREAK); } break;}
|
|
|
|
SWITCH_DECLARE(void) switch_channel_perform_audio_sync(switch_channel_t *channel, const char *file, const char *func, int line);
|
|
#define switch_channel_audio_sync(_c) switch_channel_perform_audio_sync(_c, __FILE__, __SWITCH_FUNC__, __LINE__)
|
|
SWITCH_DECLARE(void) switch_channel_perform_video_sync(switch_channel_t *channel, const char *file, const char *func, int line);
|
|
#define switch_channel_video_sync(_c) switch_channel_perform_video_sync(_c, __FILE__, __SWITCH_FUNC__, __LINE__)
|
|
|
|
SWITCH_DECLARE(void) switch_channel_set_private_flag(switch_channel_t *channel, uint32_t flags);
|
|
SWITCH_DECLARE(void) switch_channel_clear_private_flag(switch_channel_t *channel, uint32_t flags);
|
|
SWITCH_DECLARE(int) switch_channel_test_private_flag(switch_channel_t *channel, uint32_t flags);
|
|
|
|
SWITCH_DECLARE(void) switch_channel_set_app_flag_key(const char *app, switch_channel_t *channel, uint32_t flags);
|
|
SWITCH_DECLARE(void) switch_channel_clear_app_flag_key(const char *app, switch_channel_t *channel, uint32_t flags);
|
|
SWITCH_DECLARE(int) switch_channel_test_app_flag_key(const char *app, switch_channel_t *channel, uint32_t flags);
|
|
|
|
#define switch_channel_set_app_flag(_c, _f) switch_channel_set_app_flag_key(__FILE__, _c, _f)
|
|
#define switch_channel_clear_app_flag(_c, _f) switch_channel_clear_app_flag_key(__FILE__, _c, _f)
|
|
#define switch_channel_test_app_flag(_c, _f) switch_channel_test_app_flag_key(__FILE__, _c, _f)
|
|
|
|
SWITCH_DECLARE(void) switch_channel_set_bridge_time(switch_channel_t *channel);
|
|
SWITCH_DECLARE(void) switch_channel_set_hangup_time(switch_channel_t *channel);
|
|
SWITCH_DECLARE(switch_call_direction_t) switch_channel_direction(switch_channel_t *channel);
|
|
SWITCH_DECLARE(switch_call_direction_t) switch_channel_logical_direction(switch_channel_t *channel);
|
|
SWITCH_DECLARE(void) switch_channel_set_direction(switch_channel_t *channel, switch_call_direction_t direction);
|
|
|
|
SWITCH_DECLARE(switch_core_session_t *) switch_channel_get_session(switch_channel_t *channel);
|
|
SWITCH_DECLARE(char *) switch_channel_get_flag_string(switch_channel_t *channel);
|
|
SWITCH_DECLARE(char *) switch_channel_get_cap_string(switch_channel_t *channel);
|
|
SWITCH_DECLARE(int) switch_channel_state_change_pending(switch_channel_t *channel);
|
|
|
|
SWITCH_DECLARE(void) switch_channel_perform_set_callstate(switch_channel_t *channel, switch_channel_callstate_t callstate,
|
|
const char *file, const char *func, int line);
|
|
#define switch_channel_set_callstate(channel, state) switch_channel_perform_set_callstate(channel, state, __FILE__, __SWITCH_FUNC__, __LINE__)
|
|
SWITCH_DECLARE(switch_channel_callstate_t) switch_channel_get_callstate(switch_channel_t *channel);
|
|
SWITCH_DECLARE(const char *) switch_channel_callstate2str(switch_channel_callstate_t callstate);
|
|
SWITCH_DECLARE(switch_channel_callstate_t) switch_channel_str2callstate(const char *str);
|
|
SWITCH_DECLARE(void) switch_channel_mark_hold(switch_channel_t *channel, switch_bool_t on);
|
|
|
|
/** @} */
|
|
|
|
SWITCH_DECLARE(switch_status_t) switch_channel_execute_on(switch_channel_t *channel, const char *variable_prefix);
|
|
SWITCH_DECLARE(switch_status_t) switch_channel_api_on(switch_channel_t *channel, const char *variable_prefix);
|
|
SWITCH_DECLARE(void) switch_channel_process_device_hangup(switch_channel_t *channel);
|
|
SWITCH_DECLARE(switch_caller_extension_t *) switch_channel_get_queued_extension(switch_channel_t *channel);
|
|
SWITCH_DECLARE(void) switch_channel_transfer_to_extension(switch_channel_t *channel, switch_caller_extension_t *caller_extension);
|
|
SWITCH_DECLARE(const char *) switch_channel_get_partner_uuid(switch_channel_t *channel);
|
|
SWITCH_DECLARE(const char *) switch_channel_get_partner_uuid_copy(switch_channel_t *channel, char *buf, switch_size_t blen);
|
|
SWITCH_DECLARE(switch_hold_record_t *) switch_channel_get_hold_record(switch_channel_t *channel);
|
|
SWITCH_DECLARE(void) switch_channel_state_thread_lock(switch_channel_t *channel);
|
|
SWITCH_DECLARE(void) switch_channel_state_thread_unlock(switch_channel_t *channel);
|
|
SWITCH_DECLARE(switch_status_t) switch_channel_state_thread_trylock(switch_channel_t *channel);
|
|
SWITCH_DECLARE(void) switch_channel_handle_cause(switch_channel_t *channel, switch_call_cause_t cause);
|
|
SWITCH_DECLARE(void) switch_channel_global_init(switch_memory_pool_t *pool);
|
|
SWITCH_DECLARE(void) switch_channel_global_uninit(void);
|
|
SWITCH_DECLARE(const char *) switch_channel_set_device_id(switch_channel_t *channel, const char *device_id);
|
|
SWITCH_DECLARE(void) switch_channel_clear_device_record(switch_channel_t *channel);
|
|
SWITCH_DECLARE(switch_device_record_t *) switch_channel_get_device_record(switch_channel_t *channel);
|
|
SWITCH_DECLARE(void) switch_channel_release_device_record(switch_device_record_t **dcdrp);
|
|
SWITCH_DECLARE(switch_status_t) switch_channel_bind_device_state_handler(switch_device_state_function_t function, void *user_data);
|
|
SWITCH_DECLARE(switch_status_t) switch_channel_unbind_device_state_handler(switch_device_state_function_t function);
|
|
SWITCH_DECLARE(const char *) switch_channel_device_state2str(switch_device_state_t device_state);
|
|
SWITCH_DECLARE(switch_status_t) switch_channel_pass_sdp(switch_channel_t *from_channel, switch_channel_t *to_channel, const char *sdp);
|
|
|
|
SWITCH_END_EXTERN_C
|
|
#endif
|
|
/* For Emacs:
|
|
* Local Variables:
|
|
* mode:c
|
|
* indent-tabs-mode:t
|
|
* tab-width:4
|
|
* c-basic-offset:4
|
|
* End:
|
|
* For VIM:
|
|
* vim:set softtabstop=4 shiftwidth=4 tabstop=4 noet:
|
|
*/
|