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// **********************************************************************
//
// Copyright (c) 2003-2006 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.
//
// **********************************************************************
#ifndef SUBSCRIBERS_H
#define SUBSCRIBERS_H
#include <IceStorm/IceStormInternal.h> // F
#include <IceStorm/Event.h>
namespace IceStorm
{
class Instance;
typedef IceUtil::Handle<Instance> InstancePtr;
class Subscriber;
typedef IceUtil::Handle<Subscriber> SubscriberPtr;
class Subscriber : public IceUtil::Shared
{
public:
static SubscriberPtr create(const InstancePtr&, const Ice::ObjectPrx&, const IceStorm::QoS&);
static SubscriberPtr create(const InstancePtr&, const TopicLinkPrx&, int);
~Subscriber();
void reachable();
Ice::ObjectPrx proxy() const;
Ice::Identity id() const;
bool persistent() const;
enum QueueState
{
QueueStateError,
QueueStateFlush,
QueueStateNoFlush
};
virtual QueueState queue(bool, const std::vector<EventPtr>&);
//
// Return true if flush() must be called again, false otherwise.
//
virtual bool flush() = 0;
virtual void destroy();
//
// These methods must only be called by the SubscriberPool they
// are not internally mutex protected.
//
void flushTime(const IceUtil::Time&);
IceUtil::Time pollMaxFlushTime(const IceUtil::Time&);
void setError(const Ice::Exception&);
void setUnreachable(const Ice::Exception&);
protected:
Subscriber(const InstancePtr&, const Ice::ObjectPrx&, bool, const Ice::Identity&);
// Immutable
const InstancePtr _instance;
const Ice::Identity _id;
const bool _persistent;
const Ice::ObjectPrx _proxy;
IceUtil::Mutex _mutex;
enum State
{
//
// The Subscriber is active.
//
StateActive,
//
// The Subscriber encountered an error during event
// transmission.
//
StateError,
//
// The Subscriber is no longer reachable.
//
StateUnreachable
};
State _state;
bool _busy;
EventSeq _events;
//
// Not protected by _mutex. These members are protected by the
// SubscriberPool mutex.
//
bool _resetMax;
IceUtil::Time _maxSend;
};
bool operator==(const IceStorm::SubscriberPtr&, const Ice::Identity&);
}
#endif // SUBSCRIBERS_H
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