140 lines
4.1 KiB
C++
140 lines
4.1 KiB
C++
/* pvaMultiDouble.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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#define epicsExportSharedSymbols
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#include <pv/pvaMultiDouble.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 std;
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namespace epics { namespace pva {
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PvaMultiDoublePtr PvaMultiDouble::create(
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PvaPtr const & pva,
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PVStringArrayPtr const & channelName,
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double timeout,
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std::string const & providerName)
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{
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PvaMultiChannelPtr pvaMultiChannel(
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PvaMultiChannel::create(pva,channelName,providerName));
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Status status = pvaMultiChannel->connect(timeout,0);
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if(!status.isOK()) throw std::runtime_error(status.getMessage());
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return PvaMultiDoublePtr(new PvaMultiDouble(pvaMultiChannel));
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}
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PvaMultiDouble::PvaMultiDouble(PvaMultiChannelPtr const &pvaMultiChannel)
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:
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pvaMultiChannel(pvaMultiChannel)
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{}
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PvaMultiDouble::~PvaMultiDouble()
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{
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}
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void PvaMultiDouble::createGet()
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{
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PvaChannelArrayPtr pvaChannelArray = pvaMultiChannel->getPvaChannelArray().lock();
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if(!pvaChannelArray) throw std::runtime_error("pvaChannelArray is gone");
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shared_vector<const PvaChannelPtr> pvaChannels = *pvaChannelArray;
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size_t numChannel = pvaChannels.size();
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pvaGet = std::vector<PvaGetPtr>(numChannel,PvaGetPtr());
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bool allOK = true;
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string message;
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for(size_t i=0; i<numChannel; ++i)
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{
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pvaGet[i] = pvaChannels[i]->createGet("value");
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pvaGet[i]->issueConnect();
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}
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for(size_t i=0; i<numChannel; ++i)
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{
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Status status = pvaGet[i]->waitConnect();
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if(!status.isOK()) {
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message = "connect status " + status.getMessage();
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allOK = false;
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break;
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}
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}
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if(!allOK) throw std::runtime_error(message);
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}
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void PvaMultiDouble::createPut()
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{
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PvaChannelArrayPtr pvaChannelArray = pvaMultiChannel->getPvaChannelArray().lock();
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if(!pvaChannelArray) throw std::runtime_error("pvaChannelArray is gone");
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shared_vector<const PvaChannelPtr> pvaChannels = *pvaChannelArray;
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size_t numChannel = pvaChannels.size();
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pvaPut = std::vector<PvaPutPtr>(numChannel,PvaPutPtr());
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bool allOK = true;
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string message;
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for(size_t i=0; i<numChannel; ++i)
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{
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pvaPut[i] = pvaChannels[i]->createPut("value");
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pvaPut[i]->issueConnect();
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}
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for(size_t i=0; i<numChannel; ++i)
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{
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Status status = pvaPut[i]->waitConnect();
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if(!status.isOK()) {
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message = "connect status " + status.getMessage();
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allOK = false;
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break;
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}
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}
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if(!allOK) throw std::runtime_error(message);
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}
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epics::pvData::shared_vector<double> PvaMultiDouble::get()
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{
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if(pvaGet.empty()) createGet();
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shared_vector<const string> channelNames = pvaMultiChannel->getChannelNames()->view();
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size_t numChannel = channelNames.size();
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epics::pvData::shared_vector<double> data(channelNames.size());
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for(size_t i=0; i<numChannel; ++i)
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{
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pvaGet[i]->issueGet();
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}
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for(size_t i=0; i<numChannel; ++i)
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{
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Status status = pvaGet[i]->waitGet();
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if(!status.isOK()) {
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string message = channelNames[i] + " " + status.getMessage();
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throw std::runtime_error(message);
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}
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data[i] = pvaGet[i]->getData()->getDouble();
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}
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return data;
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}
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void PvaMultiDouble::put(shared_vector<double> const &value)
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{
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if(pvaPut.empty()) createPut();
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shared_vector<const string> channelNames = pvaMultiChannel->getChannelNames()->view();
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size_t numChannel = channelNames.size();
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for(size_t i=0; i<numChannel; ++i)
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{
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pvaPut[i]->getData()->putDouble(value[i]);
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pvaPut[i]->issuePut();
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}
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for(size_t i=0; i<numChannel; ++i)
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{
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Status status = pvaPut[i]->waitPut();
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if(!status.isOK()) {
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string message = channelNames[i] + " " + status.getMessage();
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throw std::runtime_error(message);
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}
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}
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}
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}}
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