Ejemplo n.º 1
0
void
ObserverTopic::unsubscribe(const Ice::ObjectPrx& observer, const string& name)
{
    Lock sync(*this);
    Ice::EncodingVersion v = IceInternal::getCompatibleEncoding(observer->ice_getEncodingVersion());
    map<Ice::EncodingVersion, IceStorm::TopicPrx>::const_iterator p = _topics.find(v);
    if(p == _topics.end())
    {
        return;
    }
    try
    {
        p->second->unsubscribe(observer);
    }
    catch(const Ice::ObjectAdapterDeactivatedException&)
    {
    }

    assert(observer);

    if(!name.empty())
    {
        assert(_syncSubscribers.find(name) != _syncSubscribers.end());
        _syncSubscribers.erase(name);

        map<int, set<string> >::iterator p = _waitForUpdates.begin();
        bool notifyMonitor = false;
        while(p != _waitForUpdates.end())
        {
            p->second.erase(name);
            if(p->second.empty())
            {
                _waitForUpdates.erase(p++);
                notifyMonitor = true;
            }
            else
            {
                ++p;
            }
        }
    
        if(notifyMonitor)
        {
            notifyAll();
        }
    }
}
Ejemplo n.º 2
0
int
ObserverTopic::subscribe(const Ice::ObjectPrx& obsv, const string& name)
{
    Lock sync(*this);
    if(_topics.empty())
    {
        return -1;
    }

    assert(obsv);
    try
    {
        IceStorm::QoS qos;
        qos["reliability"] = "ordered";
        Ice::EncodingVersion v = IceInternal::getCompatibleEncoding(obsv->ice_getEncodingVersion());
        map<Ice::EncodingVersion, IceStorm::TopicPrx>::const_iterator p = _topics.find(v);
        if(p == _topics.end())
        {
            Ice::Warning out(_logger);
            out << "unsupported encoding version for observer `" << obsv << "'";
            return -1;
        }
        initObserver(p->second->subscribeAndGetPublisher(qos, obsv->ice_twoway()));
    }
    catch(const IceStorm::AlreadySubscribed&)
    {
        throw ObserverAlreadyRegisteredException(obsv->ice_getIdentity());
    }

    if(!name.empty())
    {
        assert(_syncSubscribers.find(name) == _syncSubscribers.end());
        _syncSubscribers.insert(name);
        addExpectedUpdate(_serial, name);
        return _serial;
    }
    return -1;
}