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//
// Copyright (c) ZeroC, Inc. All rights reserved.
//
#ifndef TRANSIENT_TOPIC_I_H
#define TRANSIENT_TOPIC_I_H
#include <IceStorm/IceStormInternal.h>
namespace IceStorm
{
// Forward declarations.
class Instance;
class Subscriber;
class TransientTopicImpl : public TopicInternal
{
public:
static std::shared_ptr<TransientTopicImpl> create(const std::shared_ptr<Instance>&, const std::string&,
const Ice::Identity&);
std::string getName(const Ice::Current&) const override;
std::shared_ptr<Ice::ObjectPrx> getNonReplicatedPublisher(const Ice::Current&) const override;
std::shared_ptr<Ice::ObjectPrx> getPublisher(const Ice::Current&) const override;
std::shared_ptr<Ice::ObjectPrx> subscribeAndGetPublisher(QoS, std::shared_ptr<Ice::ObjectPrx>, const Ice::Current&) override;
void unsubscribe(std::shared_ptr<Ice::ObjectPrx>, const Ice::Current&) override;
std::shared_ptr<TopicLinkPrx> getLinkProxy(const Ice::Current&) override;
void link(std::shared_ptr<TopicPrx>, int, const Ice::Current&) override;
void unlink(std::shared_ptr<TopicPrx>, const Ice::Current&) override;
LinkInfoSeq getLinkInfoSeq(const Ice::Current&) const override;
Ice::IdentitySeq getSubscribers(const Ice::Current&) const override;
void destroy(const Ice::Current&) override;
void reap(Ice::IdentitySeq, const Ice::Current&) override;
// Internal methods
bool destroyed() const;
Ice::Identity id() const;
void publish(bool, const EventDataSeq&);
void shutdown();
private:
TransientTopicImpl(std::shared_ptr<Instance>, const std::string&, const Ice::Identity&);
//
// Immutable members.
//
const std::shared_ptr<Instance> _instance;
const std::string _name; // The topic name
const Ice::Identity _id; // The topic identity
std::shared_ptr<Ice::ObjectPrx> _publisherPrx;
std::shared_ptr<TopicLinkPrx> _linkPrx;
//
// We keep a vector of subscribers since the optimized behaviour
// should be publishing events, not searching through the list of
// subscribers for a particular subscriber. I tested
// vector/list/map and although there was little difference vector
// was the fastest of the three.
//
std::vector<std::shared_ptr<Subscriber>> _subscribers;
bool _destroyed; // Has this Topic been destroyed?
mutable std::mutex _mutex;
};
} // End namespace IceStorm
#endif
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