mirror of
https://github.com/signalwire/freeswitch.git
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259 lines
9.0 KiB
C++
259 lines
9.0 KiB
C++
/*
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* mod_opalh323.cpp
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*
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* Opal-H323 gluer for Freeswitch
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* This file implements fontend of OpalH323 module functions
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* that is all functions that are used for communication
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* between FreeSWITCH core and this module
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*
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*
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* Copyright (c) 2007 Lukasz Zwierko (lzwierko@gmail.com)
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*
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* The contents of this file are subject to the Mozilla Public License
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* Version 1.0 (the "License"); you may not use this file except in
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* compliance with 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"
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* basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
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* the License for the specific language governing rights and limitations
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* under the License.
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*
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*
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* The Initial Developer of the Original Code is Lukasz Zwierko (lzwierko@gmail.com)
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*
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* Contributor(s):
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*
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* $Log: mod_opalh323.cpp,v $
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*
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* Revision 1.00 2007/10/24 07:29:52 lzwierko
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* Initial revision
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*/
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#include "mod_opalh323.h"
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#include "opalh323_backend.h"
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#include <switch.h>
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/*
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* IO routines handlers definitions
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*/
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static switch_call_cause_t opalh323_outgoing_channel(switch_core_session_t *, switch_caller_profile_t *, switch_core_session_t **, switch_memory_pool_t **);
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static switch_status_t opalh323_read_frame(switch_core_session_t *, switch_frame_t **, int, switch_io_flag_t, int);
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static switch_status_t opalh323_write_frame(switch_core_session_t *, switch_frame_t *, int, switch_io_flag_t, int);
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static switch_status_t opalh323_kill_channel(switch_core_session_t *, int);
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static switch_status_t opalh323_waitfor_read(switch_core_session_t *, int, int);
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static switch_status_t opalh323_waitfor_write(switch_core_session_t *, int, int);
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static switch_status_t opalh323_send_dtmf(switch_core_session_t *, char *);
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static switch_status_t opalh323_receive_message(switch_core_session_t *, switch_core_session_message_t *);
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static switch_status_t opalh323_receive_event(switch_core_session_t *, switch_event_t *);
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static switch_status_t opalh323_state_change(switch_core_session_t *);
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static switch_status_t opalh323_read_video_frame(switch_core_session_t *, switch_frame_t **, int, switch_io_flag_t, int);
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static switch_status_t opalh323_write_video_frame(switch_core_session_t *, switch_frame_t *, int, switch_io_flag_t, int);
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/*
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* Event handlers declaration
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*/
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static switch_status_t opalh323_on_init(switch_core_session_t *session);
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static switch_status_t opalh323_on_ring(switch_core_session_t *session);
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static switch_status_t opalh323_on_execute(switch_core_session_t *session);
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static switch_status_t opalh323_on_hangup(switch_core_session_t *session);
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static switch_status_t opalh323_on_loopback(switch_core_session_t *session);
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static switch_status_t opalh323_on_transmit(switch_core_session_t *session);
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/**
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* Declaration of private variables
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*/
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static FSOpalManager *opalh323_manager = NULL;
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static switch_memory_pool_t *opalh323_pool = NULL;
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static switch_endpoint_interface_t *opalh323_endpoint_interface;
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/*
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* IO routines handlers set declaration
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*/
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static switch_io_routines_t opalh323_io_routines = {
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/*.outgoing_channel */ opalh323_outgoing_channel,
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/*.read_frame */ opalh323_read_frame,
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/*.write_frame */ opalh323_write_frame,
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/*.kill_channel */ opalh323_kill_channel,
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/*.waitfor_read */ opalh323_waitfor_read,
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/*.waitfor_read */ opalh323_waitfor_write,
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/*.send_dtmf */ opalh323_send_dtmf,
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/*.receive_message */ opalh323_receive_message,
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/*.receive_event */ opalh323_receive_event,
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/*.state_change*/ opalh323_state_change,
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/*.read_video_frame*/ opalh323_read_video_frame,
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/*.write_video_frame*/ opalh323_write_video_frame
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};
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static switch_state_handler_table_t opalh323_event_handlers = {
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/*.on_init */ opalh323_on_init,
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/*.on_ring */ opalh323_on_ring,
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/*.on_execute */ opalh323_on_execute,
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/*.on_hangup */ opalh323_on_hangup,
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/*.on_loopback */ opalh323_on_loopback,
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/*.on_transmit */ opalh323_on_transmit
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};
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/*
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* Loadable FreeSWITCH module functions declaration
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*/
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SWITCH_MODULE_LOAD_FUNCTION(mod_opalh323_load);
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SWITCH_MODULE_SHUTDOWN_FUNCTION(mod_opalh323_shutdown);
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SWITCH_MODULE_DEFINITION(mod_opalh323, mod_opalh323_load, mod_opalh323_shutdown, NULL);
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/*
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* This function is called on module load
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* It sets up:
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* 1. frontend - interface to FreeSWITCH core
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* 2. backend - inerface to OPAL core
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*
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*/
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SWITCH_MODULE_LOAD_FUNCTION(mod_opalh323_load)
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{
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/* frontend initialization*/
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*module_interface =NULL;
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*module_interface = switch_loadable_module_create_module_interface(pool, modname);
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assert(*module_interface);
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if(!module_interface)
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{
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return SWITCH_STATUS_MEMERR;
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}
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opalh323_endpoint_interface = (switch_endpoint_interface_t*)switch_loadable_module_create_interface(*module_interface, SWITCH_ENDPOINT_INTERFACE);
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opalh323_endpoint_interface->interface_name = "OPALH323";
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opalh323_endpoint_interface->io_routines = &opalh323_io_routines;
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opalh323_endpoint_interface->state_handler = &opalh323_event_handlers;
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/* backend initialization */
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opalh323_manager = new FSOpalManager();
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assert(opalh323_manager);
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if(!opalh323_manager)
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{
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return SWITCH_STATUS_MEMERR;
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}
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if(!opalh323_manager->initialize(modname,pool,opalh323_endpoint_interface))
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{
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delete opalh323_manager;
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return SWITCH_STATUS_FALSE; /* if can't initialize return general error */
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}
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/* indicate that the module should continue to be loaded */
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return SWITCH_STATUS_SUCCESS;
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}
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/*
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* This functionis called on module teardown
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* It releases all internal resources, i.e.
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* it dealocates OPAL core
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*
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*/
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SWITCH_MODULE_SHUTDOWN_FUNCTION(mod_opalh323_shutdown)
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{
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/* deallocate OPAL manager */
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delete opalh323_manager;
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return SWITCH_STATUS_SUCCESS;
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}
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/*
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* IO routines handlers definitions
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*/
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static switch_call_cause_t opalh323_outgoing_channel(
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switch_core_session_t *session,
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switch_caller_profile_t *outbound_profile,
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switch_core_session_t **new_session,
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switch_memory_pool_t **pool)
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{
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return opalh323_manager->io_outgoing_channel(session,outbound_profile,new_session,pool);
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}
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static switch_status_t opalh323_read_frame(switch_core_session_t *session, switch_frame_t **frame, int timeout, switch_io_flag_t flags, int stream_id)
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{
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return opalh323_manager->io_read_frame(session,frame,timeout,flags,stream_id);
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}
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static switch_status_t opalh323_write_frame(switch_core_session_t *session, switch_frame_t *frame, int timeout, switch_io_flag_t flags, int stream_id)
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{
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return opalh323_manager->io_write_frame(session,frame,timeout,flags,stream_id);
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}
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static switch_status_t opalh323_kill_channel(switch_core_session_t *session, int sig)
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{
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return opalh323_manager->io_kill_channel(session,sig);
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}
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static switch_status_t opalh323_waitfor_read(switch_core_session_t *session, int ms, int stream_id)
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{
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return opalh323_manager->io_waitfor_read(session,ms,stream_id);
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}
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static switch_status_t opalh323_waitfor_write(switch_core_session_t *session, int ms, int stream_id)
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{
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return opalh323_manager->io_waitfor_write(session,ms,stream_id);
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}
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static switch_status_t opalh323_send_dtmf(switch_core_session_t *session, char *dtmf)
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{
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return opalh323_manager->io_send_dtmf(session,dtmf);
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}
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static switch_status_t opalh323_receive_message(switch_core_session_t *session, switch_core_session_message_t *msg)
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{
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return opalh323_manager->io_receive_message(session,msg);
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}
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static switch_status_t opalh323_receive_event(switch_core_session_t *session, switch_event_t *event)
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{
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return opalh323_manager->io_receive_event(session,event);
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}
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static switch_status_t opalh323_state_change(switch_core_session_t *session)
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{
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return opalh323_manager->io_state_change(session);
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}
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static switch_status_t opalh323_read_video_frame(switch_core_session_t *session, switch_frame_t **frame, int timeout, switch_io_flag_t flag, int stream_id)
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{
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return opalh323_manager->io_read_video_frame(session,frame,timeout,flag,stream_id);
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}
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static switch_status_t opalh323_write_video_frame(switch_core_session_t *session, switch_frame_t *frame, int timeout, switch_io_flag_t flag, int stream_id)
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{
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return opalh323_manager->io_write_video_frame(session,frame,timeout,flag,stream_id);
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}
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/*
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* Event handlers
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*/
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static switch_status_t opalh323_on_init(switch_core_session_t *session)
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{
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return opalh323_manager->callback_on_init(session);
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}
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static switch_status_t opalh323_on_ring(switch_core_session_t *session)
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{
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return opalh323_manager->callback_on_ring(session);
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}
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static switch_status_t opalh323_on_execute(switch_core_session_t *session)
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{
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return opalh323_manager->callback_on_execute(session);
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}
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static switch_status_t opalh323_on_hangup(switch_core_session_t *session)
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{
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return opalh323_manager->callback_on_hangup(session);
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}
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static switch_status_t opalh323_on_loopback(switch_core_session_t *session)
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{
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return opalh323_manager->callback_on_loopback(session);
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}
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static switch_status_t opalh323_on_transmit(switch_core_session_t *session)
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{
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return opalh323_manager->callback_on_transmit(session);
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}
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