mrkraimer
78 lines
2.4 KiB
C++
78 lines
2.4 KiB
C++
/*examplePvaClientPut.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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*/
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/* Author: Marty Kraimer */
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#include <iostream>
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#include <pv/pvaClient.h>
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#include <pv/convert.h>
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using std::tr1::static_pointer_cast;
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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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using namespace epics::pvaClient;
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static ConvertPtr convert = getConvert();
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static void examplePut(PvaClientPtr const &pva)
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{
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cout << "example put\n";
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PvaClientChannelPtr channel = pva->channel("exampleDouble");
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PvaClientPutPtr put = channel->put();
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PvaClientPutDataPtr putData = put->getData();
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PvaClientMonitorPtr monitor = pva->channel("exampleDouble")->monitor("");
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PvaClientMonitorDataPtr monitorData = monitor->getData();
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try {
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putData->putDouble(3.0); put->put();
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cout << channel->get("field()")->getData()->showChanged(cout) << endl;
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putData->putDouble(4.0); put->put();
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cout << channel->get("field()")->getData()->showChanged(cout) << endl;
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if(!monitor->waitEvent()) {
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cout << "waitEvent returned false. Why???";
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} else while(true) {
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cout << "monitor changed\n" << monitorData->showChanged(cout);
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monitor->releaseEvent();
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if(!monitor->poll()) break;
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}
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} catch (std::runtime_error e) {
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cout << "exception " << e.what() << endl;
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}
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}
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static void examplePVFieldPut(PvaClientPtr const &pva)
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{
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cout << "example put\n";
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PvaClientChannelPtr channel = pva->channel("exampleDouble");
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PvaClientPutPtr put = channel->put();
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PvaClientPutDataPtr putData = put->getData();
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PVFieldPtr pvField = putData->getValue();
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PVScalarPtr pvScalar = static_pointer_cast<PVScalar>(pvField);
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try {
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convert->fromDouble(pvScalar,1.0); put->put();
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cout << channel->get("field()")->getData()->showChanged(cout) << endl;
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convert->fromDouble(pvScalar,2.0); put->put();
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cout << channel->get("field()")->getData()->showChanged(cout) << endl;
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} catch (std::runtime_error e) {
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cout << "exception " << e.what() << endl;
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}
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}
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int main(int argc,char *argv[])
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{
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PvaClientPtr pva = PvaClient::create();
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examplePut(pva);
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examplePVFieldPut(pva);
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return 0;
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}
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