uastatemachine.cxx

SIP（Session Initiation Protocol）是由IETF定义

/* ====================================================================
 * The Vovida Software License, Version 1.0 
 * 
 * Copyright (c) 2000 Vovida Networks, Inc.  All rights reserved.
 * 
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in
 *    the documentation and/or other materials provided with the
 *    distribution.
 * 
 * 3. The names "VOCAL", "Vovida Open Communication Application Library",
 *    and "Vovida Open Communication Application Library (VOCAL)" must
 *    not be used to endorse or promote products derived from this
 *    software without prior written permission. For written
 *    permission, please contact [e-mail].
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 * 4. Products derived from this software may not be called "VOCAL", nor
 *    may "VOCAL" appear in their name, without prior written
 *    permission of Vovida Networks, Inc.
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 * ====================================================================
 * 
 * This software consists of voluntary contributions made by Vovida
 * Networks, Inc. and many individuals on behalf of Vovida Networks,
 * Inc.  For more information on Vovida Networks, Inc., please see
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static const char* const UaStateMachine_cxx_Version =
    "$Id: UaStateMachine.cxx,v 1.28 2002/11/09 02:13:08 derekm Exp $";

#include "global.h"
#include "State.hxx"
#include "UaStateMachine.hxx"
#include "UaCallInfo.hxx"

#include "StateBusy.hxx"
#include "StateCallEnded.hxx"
#include "StateDialing.hxx"
#include "StateError.hxx"
#include "StateFastBusy.hxx"
#include "StateIdle.hxx"
#include "StateInCall.hxx"
#include "StateRinging.hxx"
#include "StateTrying.hxx"
#include "StateInCallDialing.hxx"
#include "StateReRinging.hxx"
#include "StateInCallTrying.hxx"
#include "StateIn2Calls.hxx"
#include "StateBeingXferred.hxx"
#include "StateBlindXferring.hxx"
#include "StateConsultXferring.hxx"
#include "StateInCallBusy.hxx"
#include "StateInCallFastBusy.hxx"
#include "StateConferencing.hxx"
#include "StateBusyHere.hxx"
#include "StateOnhold.hxx"

#include "StateAutoIdle.hxx"
#include "StateAutoTrying.hxx"
#include "StateAutoInCall.hxx"
#include "UaConfiguration.hxx"

#include "StateAutoRS.hxx"

using namespace Vocal;

///
UaStateMachine::UaStateMachine()
{
    cpLog( LOG_DEBUG, "User Agent State Machine" );

    if ( UaConfiguration::instance()->getLoadGenOn() )
    {
        if (UaConfiguration::instance()->getRunMode() == "RSTest")
        {
            cpLog(LOG_DEBUG, "*** StateMachine for RS Test ***");
            addState( new StateAutoRS );
        }
        else if (UaConfiguration::instance()->getRunMode() == "Calling")
        {
            // State for calling
            cpLog(LOG_DEBUG, "*** StateMachine for Calling Load Gen Used ***");
            addState( new StateAutoIdle );
            addState( new StateAutoTrying );
            addState( new StateAutoInCall );
        }
        else if (UaConfiguration::instance()->getRunMode() == "Receiving")
        {
            // State for receiving
            cpLog(LOG_DEBUG, "*** StateMachine for Receiving Load Gen Used ***");
            addState( new StateAutoIdle );
            addState( new StateAutoInCall );
        }
        else
        {
            cpLog(LOG_ERR, "******* RUNNING MODE IS NOT CORRECTLY SET! *******");
            assert ( 0 );
        }
    }
    else
    {
        addState( new StateBusy );
        addState( new StateCallEnded );
        addState( new StateDialing );
        addState( new StateError );
        addState( new StateFastBusy );
        addState( new StateIdle );
        addState( new StateInCall );
        addState( new StateRinging );
        addState( new StateTrying );
        addState( new StateBusyHere );
        addState( new StateOnhold );

        const UaXferMode xferMode = UaConfiguration::instance()->getXferMode();

        if ( xferMode != XferOff )
        {
            addState( new StateInCallDialing );
            addState( new StateReRinging );
            addState( new StateIn2Calls );
            addState( new StateBeingXferred );
            addState( new StateInCallBusy );
            addState( new StateInCallFastBusy );
            addState( new StateInCallTrying );

            if ( xferMode == XferOn )
            {
                addState( new StateBlindXferring );
                addState( new StateConsultXferring );
            }
            else if ( xferMode == ConfOn )
            {
                addState( new StateConferencing );
            }
        }

    }
}    // UaStateMachine::UaStateMachine



///
UaStateMachine::~UaStateMachine()
{}    // UaStateMachine::~UaStateMachine


void
UaStateMachine::process( const Sptr < SipProxyEvent > event )
{
    assert( event != 0 );

    Sptr<UaCallInfo> call;
    call.dynamicCast( event->getCallInfo() );
    assert( call != 0 );

    cpLog( LOG_DEBUG, "Current State is %s", call->getState()->name() );

    Sptr<State> nextState = call->getState()->process( event );

    if( nextState != PROXY_CONTINUE )
    {
	call->setState( nextState );
	cpLog( LOG_DEBUG, "Next State is %s", nextState->name() );
    }
}    // UaStateMachine::process

///
Sptr < State >
UaStateMachine::findState( const string stateName )
{
    StateIter iter = myStates.begin();
    while ( iter != myStates.end() )
    {
        if ( stateName == (*iter)->name() )
        {
            return *iter;
        }
        iter++;
    }
    return 0;
}


///
const char* const
UaStateMachine::name() const
{
    return "User Agent State Machine";
}    // UaStateMachine::name