C++ (Cpp) PvaClientChannelPtr::get示例

示例#1

文件： examplePvaClientPut.cpp 项目： dhickin/exampleCPP

static void exampleDoubleArray(PvaClientPtr const &pva,string const & channelName,string const & providerName)
{
    cout << "__exampleDoubleArray__ channelName " << channelName << " providerName " << providerName << endl;
    PvaClientChannelPtr channel = pva->channel(channelName,providerName,2.0);
    PvaClientPutPtr put = channel->put();
    PvaClientPutDataPtr putData = put->getData();
    PvaClientMonitorPtr monitor = pva->channel(channelName,providerName,2.0)->monitor("value");
    PvaClientMonitorDataPtr monitorData = monitor->getData();
    size_t num = 5;
    shared_vector<double> data(num,0);
    for(size_t i=0; i<num; ++i) data[i] = .1*i;
    putData->putDoubleArray(freeze(data)); put->put();
    cout <<  channel->get("field(value)")->getData()->showChanged(cout) << endl;
    data = shared_vector<double>(num,0);
    for(size_t i=0; i<num; ++i) data[i] = .1*(i + 1);
    putData->putDoubleArray(freeze(data)); put->put();
    cout <<  channel->get("field(value)")->getData()->showChanged(cout) << endl;
    if(!monitor->waitEvent()) {
           cout << "waitEvent returned false. Why???";
    } else while(true) {
         cout << "monitor changed\n" << monitorData->showChanged(cout);
         monitor->releaseEvent();
         if(!monitor->poll()) break;
    }
}

示例#2

文件： examplePvaClientProcess.cpp 项目： dhickin/exampleCPP

static void exampleProcess(PvaClientPtr const &pva)
{
    cout << "example process\n";
    PvaClientChannelPtr channel = pva->channel("PVRdouble");
    PvaClientProcessPtr process = channel->createProcess();
    process->process();
    cout <<  channel->get("field()")->getData()->showChanged(cout) << endl;
    process->process();
    cout <<  channel->get("field()")->getData()->showChanged(cout) << endl;
}

示例#3

文件： examplePvaClientPut.cpp 项目： dhickin/exampleCPP

static void examplePVFieldPut(PvaClientPtr const &pva,string const & channelName,string const & providerName)
{
    cout << "__examplePVFieldPut__ channelName " << channelName << " providerName " << providerName << endl;
    PvaClientChannelPtr channel = pva->channel(channelName,providerName,2.0);
    PvaClientPutPtr put = channel->put();
    PvaClientPutDataPtr putData = put->getData();
    PVScalarPtr pvScalar = static_pointer_cast<PVScalar>(putData->getValue());
    convert->fromDouble(pvScalar,1.0); put->put();
    cout <<  channel->get("field(value)")->getData()->showChanged(cout) << endl;
    convert->fromDouble(pvScalar,2.0); put->put();
    cout <<  channel->get("field(value)")->getData()->showChanged(cout) << endl;
}

示例#4

文件： examplePvaClientProcess.cpp 项目： epics-base/pvExampleTestCPP

static void exampleProcess(PvaClientPtr const &pva)
{
    cout << "example process\n";
    PvaClientChannelPtr channel = pva->channel("PVRdouble");
    PvaClientProcessPtr process = channel->createProcess();
    try {
        process->process();
        cout <<  channel->get("field()")->getData()->showChanged(cout) << endl;
        process->process();
        cout <<  channel->get("field()")->getData()->showChanged(cout) << endl;
    } catch (std::runtime_error e) {
        cout << "exception " << e.what() << endl;
    }
}

示例#5

文件： examplePvaClientPut.cpp 项目： MichaelRitzert/pvaClientCPP

static void examplePVFieldPut(PvaClientPtr const &pva)
{
    cout << "example put\n";
    PvaClientChannelPtr channel = pva->channel("exampleDouble");
    PvaClientPutPtr put = channel->put();
    PvaClientPutDataPtr putData = put->getData();
    PVFieldPtr pvField = putData->getValue();
    PVScalarPtr pvScalar = static_pointer_cast<PVScalar>(pvField);
    try {
        convert->fromDouble(pvScalar,1.0); put->put();
        cout <<  channel->get("field()")->getData()->showChanged(cout) << endl;
        convert->fromDouble(pvScalar,2.0); put->put();
        cout <<  channel->get("field()")->getData()->showChanged(cout) << endl;
    } catch (std::runtime_error e) {
        cout << "exception " << e.what() << endl;
    }
}

示例#6

文件： examplePvaClientPut.cpp 项目： dhickin/exampleCPP

static void exampleDouble(PvaClientPtr const &pva,string const & channelName,string const & providerName)
{
    cout << "__exampleDouble__ channelName " << channelName << " providerName " << providerName << endl;
    PvaClientChannelPtr channel = pva->channel(channelName,providerName,2.0);
    PvaClientPutPtr put = channel->put();
    PvaClientPutDataPtr putData = put->getData();
    PvaClientMonitorPtr monitor = pva->channel(channelName,providerName,2.0)->monitor("value");
    PvaClientMonitorDataPtr monitorData = monitor->getData();
    putData->putDouble(3.0); put->put();
    cout <<  channel->get("field(value)")->getData()->showChanged(cout) << endl;
    putData->putDouble(4.0); put->put();
    cout <<  channel->get("field(value)")->getData()->showChanged(cout) << endl;
    if(!monitor->waitEvent()) {
           cout << "waitEvent returned false. Why???";
    } else while(true) {
         cout << "monitor changed\n" << monitorData->showChanged(cout);
         monitor->releaseEvent();
         if(!monitor->poll()) break;
    }
}

示例#7

文件： examplePvaClientPut.cpp 项目： MichaelRitzert/pvaClientCPP

static void examplePut(PvaClientPtr const &pva)
{
    cout << "example put\n";
    PvaClientChannelPtr channel = pva->channel("exampleDouble");
    PvaClientPutPtr put = channel->put();
    PvaClientPutDataPtr putData = put->getData();
    PvaClientMonitorPtr monitor = pva->channel("exampleDouble")->monitor("");
    PvaClientMonitorDataPtr monitorData = monitor->getData();
    try {
        putData->putDouble(3.0); put->put();
        cout <<  channel->get("field()")->getData()->showChanged(cout) << endl;
        putData->putDouble(4.0); put->put();
        cout <<  channel->get("field()")->getData()->showChanged(cout) << endl;
        if(!monitor->waitEvent()) {
               cout << "waitEvent returned false. Why???";
        } else while(true) {
             cout << "monitor changed\n" << monitorData->showChanged(cout);
             monitor->releaseEvent();
             if(!monitor->poll()) break;
        }
    } catch (std::runtime_error e) {
        cout << "exception " << e.what() << endl;
    }
}