127 lines
3.7 KiB
C++
127 lines
3.7 KiB
C++
/* pvaClientMultiMonitorDouble.cpp */
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/**
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* Copyright - See the COPYRIGHT that is included with this distribution.
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* EPICS pvData 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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/**
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* @author mrk
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* @date 2015.03
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*/
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#include <epicsThread.h>
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#include <epicsMath.h>
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#define epicsExportSharedSymbols
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#include <pv/pvaClientMultiChannel.h>
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using std::tr1::static_pointer_cast;
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using namespace epics::pvData;
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using namespace epics::pvAccess;
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using namespace epics::nt;
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using namespace std;
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namespace epics { namespace pvaClient {
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PvaClientMultiMonitorDoublePtr PvaClientMultiMonitorDouble::create(
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PvaClientMultiChannelPtr const &pvaMultiChannel,
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PvaClientChannelArray const &pvaClientChannelArray)
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{
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PvaClientMultiMonitorDoublePtr pvaClientMultiMonitorDouble(
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new PvaClientMultiMonitorDouble(pvaMultiChannel,pvaClientChannelArray));
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return pvaClientMultiMonitorDouble;
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}
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PvaClientMultiMonitorDouble::PvaClientMultiMonitorDouble(
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PvaClientMultiChannelPtr const &pvaClientMultiChannel,
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PvaClientChannelArray const &pvaClientChannelArray)
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: pvaClientMultiChannel(pvaClientMultiChannel),
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pvaClientChannelArray(pvaClientChannelArray),
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nchannel(pvaClientChannelArray.size()),
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doubleValue(shared_vector<double>(nchannel,epicsNAN)),
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pvaClientMonitor(std::vector<PvaClientMonitorPtr>(nchannel,PvaClientMonitorPtr())),
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isMonitorConnected(false)
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{
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if(PvaClient::getDebug()) cout<< "PvaClientMultiMonitorDouble::PvaClientMultiMonitorDouble()\n";
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}
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PvaClientMultiMonitorDouble::~PvaClientMultiMonitorDouble()
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{
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if(PvaClient::getDebug()) cout<< "PvaClientMultiMonitorDouble::~PvaClientMultiMonitorDouble()\n";
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}
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void PvaClientMultiMonitorDouble::connect()
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{
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shared_vector<epics::pvData::boolean> isConnected = pvaClientMultiChannel->getIsConnected();
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string request = "value";
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for(size_t i=0; i<nchannel; ++i)
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{
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if(isConnected[i]) {
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pvaClientMonitor[i] = pvaClientChannelArray[i]->createMonitor(request);
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pvaClientMonitor[i]->issueConnect();
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}
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}
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for(size_t i=0; i<nchannel; ++i)
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{
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if(isConnected[i]) {
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Status status = pvaClientMonitor[i]->waitConnect();
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if(status.isOK()) continue;
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string message = string("channel ") + pvaClientChannelArray[i]->getChannelName()
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+ " PvaChannelMonitor::waitConnect " + status.getMessage();
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throw std::runtime_error(message);
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}
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}
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for(size_t i=0; i<nchannel; ++i)
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{
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if(isConnected[i]) pvaClientMonitor[i]->start();
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}
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isMonitorConnected = true;
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}
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bool PvaClientMultiMonitorDouble::poll()
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{
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if(!isMonitorConnected){
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connect();
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epicsThreadSleep(.1);
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}
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bool result = false;
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shared_vector<epics::pvData::boolean> isConnected = pvaClientMultiChannel->getIsConnected();
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for(size_t i=0; i<nchannel; ++i)
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{
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if(isConnected[i]) {
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if(pvaClientMonitor[i]->poll()) {
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doubleValue[i] = pvaClientMonitor[i]->getData()->getDouble();
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pvaClientMonitor[i]->releaseEvent();
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result = true;
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}
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}
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}
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return result;
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}
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bool PvaClientMultiMonitorDouble::waitEvent(double waitForEvent)
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{
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if(poll()) return true;
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TimeStamp start;
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start.getCurrent();
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TimeStamp now;
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while(true) {
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epicsThreadSleep(.1);
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if(poll()) return true;
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now.getCurrent();
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double diff = TimeStamp::diff(now,start);
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if(diff>=waitForEvent) break;
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}
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return false;
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}
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epics::pvData::shared_vector<double> PvaClientMultiMonitorDouble::get()
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{
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return doubleValue;
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}
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}}
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