157 lines
2.5 KiB
C++
157 lines
2.5 KiB
C++
/*
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* beaconEmitter.h
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*/
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#ifndef BEACONEMITTER_H
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#define BEACONEMITTER_H
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#include "timer.h"
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#include "remote.h"
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#include "beaconServerStatusProvider.h"
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#include "inetAddressUtil.h"
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#include "introspectionRegistry.h"
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#include <timeStamp.h>
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#include <osiSock.h>
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#include <algorithm>
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#include <iostream>
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using namespace epics::pvData;
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namespace epics { namespace pvAccess {
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class ServerContext;
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class Logger;
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/**
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* BeaconEmitter
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*
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* @author gjansa
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*/
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class BeaconEmitter: public TransportSender, public TimerCallback
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{
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public:
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/**
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* Constructor.
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* @param transport transport to be used to send beacons.
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* @param context CA context.
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*/
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BeaconEmitter(Transport* transport, ServerContext* context);
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/**
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* Test Constructor (ohne context)
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* @param transport transport to be used to send beacons.
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*/
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BeaconEmitter(Transport* transport,const osiSockAddr* serverAddress);
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virtual ~BeaconEmitter();
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/*
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* @see TransportSender#lock()
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*/
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void lock();
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/*
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* @see TransportSender#unlock()
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*/
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void unlock();
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void acquire();
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void release();
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void send(ByteBuffer* buffer, TransportSendControl* control);
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/**
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* noop
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*/
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void timerStopped();
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/**
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* noop
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*/
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void destroy();
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/**
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* Start emitting.
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*/
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void start();
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/**
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* Reschedule timer.
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*/
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void reschedule();
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/**
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* Timer callback.
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*/
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void callback();
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private:
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/**
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* Minimal (initial) CA beacon period (in seconds).
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*/
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static const float EPICS_CA_MIN_BEACON_PERIOD;
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/**
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* Minimal CA beacon count limit.
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*/
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static const float EPICS_CA_MIN_BEACON_COUNT_LIMIT;
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/**
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* Timer.
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*/
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Timer* _timer;
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/**
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* Logger.
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*/
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Logger* _logger;
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/**
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* Transport.
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*/
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Transport* _transport;
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/**
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* Beacon sequence ID.
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*/
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int16 _beaconSequenceID;
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/**
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* Startup timestamp (when clients detect a change, they will consider server restarted).
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*/
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TimeStamp* _startupTime;
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/**
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* Fast (at startup) beacon period (in sec).
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*/
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double _fastBeaconPeriod;
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/**
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* Slow (after beaconCountLimit is reached) beacon period (in sec).
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*/
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double _slowBeaconPeriod;
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/**
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* Limit on number of beacons issued.
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*/
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int16 _beaconCountLimit;
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/**
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* Server address.
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*/
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const osiSockAddr* _serverAddress;
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/**
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* Server port.
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*/
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int32 _serverPort;
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/**
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* Server status provider implementation (optional).
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*/
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BeaconServerStatusProvider* _serverStatusProvider;
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/**
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* Timer task node.
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*/
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TimerNode* _timerNode;
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};
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}}
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#endif /* INTROSPECTIONREGISTRY_H */
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