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// **********************************************************************
//
// Copyright (c) 2003-2007 ZeroC, Inc. All rights reserved.
//
// This copy of Ice is licensed to you under the terms described in the
// ICE_LICENSE file included in this distribution.
//
// **********************************************************************

#include <Ice/Ice.h>
#include <CallbackI.h>

using namespace std;
using namespace Ice;
using namespace Demo;

CallbackSenderI::CallbackSenderI(const Ice::CommunicatorPtr& communicator) :
    _communicator(communicator),
    _destroy(false),
    _num(0),
    _callbackSenderThread(new CallbackSenderThread(this))
{
}

void
CallbackSenderI::destroy()
{
    IceUtil::ThreadPtr callbackSenderThread;

    {
        IceUtil::Monitor<IceUtil::Mutex>::Lock lock(*this);
        
        cout << "destroying callback sender" << endl;
        _destroy = true;
        
        notify();

        callbackSenderThread = _callbackSenderThread;
        _callbackSenderThread = 0; // Resolve cyclic dependency.
    }

    callbackSenderThread->getThreadControl().join();
}

void
CallbackSenderI::addClient(const Identity& ident, const Current& current)
{
    IceUtil::Monitor<IceUtil::Mutex>::Lock lock(*this);

    cout << "adding client `" << _communicator->identityToString(ident) << "'"<< endl;

    CallbackReceiverPrx client = CallbackReceiverPrx::uncheckedCast(current.con->createProxy(ident));
    _clients.insert(client);
}

void
CallbackSenderI::start()
{
    _callbackSenderThread->start();
}

void
CallbackSenderI::run()
{
    IceUtil::Monitor<IceUtil::Mutex>::Lock lock(*this);

    while(!_destroy)
    {
        timedWait(IceUtil::Time::seconds(2));

        if(!_destroy && !_clients.empty())
        {
            ++_num;
            
            set<CallbackReceiverPrx>::iterator p = _clients.begin();
            while(p != _clients.end())
            {
                try
                {
                    (*p)->callback(_num);
                    ++p;
                }
                catch(const Exception& ex)
                {
                    cerr << "removing client `" << _communicator->identityToString((*p)->ice_getIdentity()) << "':\n"
                         << ex << endl;
                    _clients.erase(p++);
                }
            }
        }
    }
}