116 lines
2.6 KiB
C++
116 lines
2.6 KiB
C++
/**
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* Copyright - See the COPYRIGHT that is included with this distribution.
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* pvAccessCPP is distributed subject to a Software License Agreement found
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* in file LICENSE that is included with this distribution.
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*/
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#include <pv/beaconHandler.h>
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#include <pv/transportRegistry.h>
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using namespace std;
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using namespace epics::pvData;
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using namespace epics::pvAccess;
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namespace epics {
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namespace pvAccess {
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BeaconHandler::BeaconHandler(Context::shared_pointer context,
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const osiSockAddr* responseFrom) :
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_context(Context::weak_pointer(context)),
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_responseFrom(*responseFrom),
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_mutex(),
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_serverStartupTime(0)
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{
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}
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BeaconHandler::BeaconHandler(const osiSockAddr* responseFrom) :
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_responseFrom(*responseFrom),
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_mutex(),
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_serverStartupTime(0)
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{
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}
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BeaconHandler::~BeaconHandler()
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{
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}
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void BeaconHandler::beaconNotify(osiSockAddr* from, int8 remoteTransportRevision,
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TimeStamp* timestamp, TimeStamp* startupTime, int16 sequentalID,
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PVFieldPtr data)
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{
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bool networkChanged = updateBeacon(remoteTransportRevision, timestamp, startupTime, sequentalID);
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if(networkChanged)
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{
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changedTransport();
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}
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}
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bool BeaconHandler::updateBeacon(int8 remoteTransportRevision, TimeStamp* timestamp,
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TimeStamp* startupTime, int16 sequentalID)
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{
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Lock guard(_mutex);
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// first beacon notification check
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if (_serverStartupTime.getSecondsPastEpoch() == 0)
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{
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_serverStartupTime = *startupTime;
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// new server up..
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_context.lock()->beaconAnomalyNotify();
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// notify corresponding transport(s)
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beaconArrivalNotify();
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return false;
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}
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bool networkChange = !(_serverStartupTime == *startupTime);
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if (networkChange)
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{
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_context.lock()->beaconAnomalyNotify();
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}
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else
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{
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beaconArrivalNotify();
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}
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return networkChange;
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}
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void BeaconHandler::beaconArrivalNotify()
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{
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auto_ptr<TransportRegistry::transportVector_t> transports =
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_context.lock()->getTransportRegistry()->get("TCP", &_responseFrom);
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if (!transports.get())
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return;
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// notify all
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for (TransportRegistry::transportVector_t::iterator iter = transports->begin();
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iter != transports->end();
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iter++)
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{
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(*iter)->aliveNotification();
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}
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}
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void BeaconHandler::changedTransport()
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{
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auto_ptr<TransportRegistry::transportVector_t> transports =
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_context.lock()->getTransportRegistry()->get("TCP", &_responseFrom);
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if (!transports.get())
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return;
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// notify all
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for (TransportRegistry::transportVector_t::iterator iter = transports->begin();
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iter != transports->end();
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iter++)
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{
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(*iter)->changedTransport();
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}
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}
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}}
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