controlstatefactory.cxx

SIP 1.5.0源代码

/* ====================================================================
 * The Vovida Software License, Version 1.0 
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 * Copyright (c) 2000 Vovida Networks, Inc.  All rights reserved.
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 * 
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 *    distribution.
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 * 3. The names "VOCAL", "Vovida Open Communication Application Library",
 *    and "Vovida Open Communication Application Library (VOCAL)" must
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 *    software without prior written permission. For written
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 * 4. Products derived from this software may not be called "VOCAL", nor
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 * This software consists of voluntary contributions made by Vovida
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static const char* const ControlStateFactory_cxx_Version = 
"$Id: ControlStateFactory.cxx,v 1.3 2002/05/07 02:28:47 sprajpat Exp $";

#include "ControlStateFactory.hxx"
#include "StateAuthPending.hxx"
#include "StateCallReady.hxx"
#include "StateDeleted.hxx"
#include "StateInCall.hxx"
#include "StateInit.hxx"
#include "StateTearDown.hxx"

ControlStateFactory* ControlStateFactory::myInstance = 0;
VMutex ControlStateFactory::myMutex;


ControlStateFactory& 
ControlStateFactory::instance()
{
    if(myInstance == 0)
    {
        myInstance = new ControlStateFactory();
    }
    return *myInstance;
}

void
ControlStateFactory::destroy()
{
    delete ControlStateFactory::myInstance;
    ControlStateFactory::myInstance = 0;
    
}

ControlState* 
ControlStateFactory::getState(CStateType stateType)
{
    ControlState* retVal;

    myMutex.lock();
    pthread_t tId = pthread_self();
    ControlStateMap& tMap = myControlStateMap[tId];
    myMutex.unlock();

    ControlStateMap::iterator itr  = tMap.find(stateType);
    if(itr != tMap.end())
    {
        return itr->second;
    }
    switch(stateType)
    {
        case C_STATE_INIT:
           retVal = new StateInit();
        break;
        case C_STATE_AUTH_PENDING:
           retVal = new StateAuthPending();
        break;
        case C_STATE_CALL_READY:
           retVal = new StateCallReady();
        break;
        case C_STATE_IN_CALL:
           retVal = new StateInCall();
        break;
        case C_STATE_TEAR_DOWN:
           retVal = new StateTearDown();
        break;
        case C_STATE_DELETED:
           retVal = new StateDeleted();
        break;
        default:
            assert(0); 
        break;
    }
    tMap[stateType] = retVal;
    return retVal;
}

ControlStateFactory::~ControlStateFactory()
{
    for(ThreadBasedControlStateMap::iterator itr = myControlStateMap.begin();
               itr != myControlStateMap.end(); itr++)
    {
        ControlStateMap& tMap = itr->second;
        for(ControlStateMap::iterator itr2 = tMap.begin();
               itr2 != tMap.end(); itr2++)
        {
            delete (itr2->second);
        }
        tMap.erase(tMap.begin(), tMap.end());
    }
}