C++ ConvertPtr::fromDouble方法代码示例

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;
}

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;
    }
}

void PvaClientPutData::putDouble(double value)
{
    PVScalarPtr pvScalar = getScalarValue();
    ScalarType scalarType = pvScalar->getScalar()->getScalarType();
    if(scalarType==pvDouble) {
        PVDoublePtr pvDouble = static_pointer_cast<PVDouble>(pvScalar);
         pvDouble->put(value);
         return;
    }
    if(!ScalarTypeFunc::isNumeric(scalarType)) {
        throw std::runtime_error(messagePrefix + notCompatibleScalar);
    }
    convert->fromDouble(pvScalar,value);
}

void PvaClientMultiPutDouble::put(epics::pvData::shared_vector<double> const &data)
{
    if(!isPutConnected) connect();
    if(data.size()!=nchannel) {
         throw std::runtime_error("data has wrong size");
    }
    shared_vector<epics::pvData::boolean> isConnected = pvaClientMultiChannel->getIsConnected();
    for(size_t i=0; i<nchannel; ++i)
    {
         if(isConnected[i]) {
               PVStructurePtr pvTop = pvaClientPut[i]->getData()->getPVStructure();
               PVScalarPtr pvValue = pvTop->getSubField<PVScalar>("value");
               convert->fromDouble(pvValue,data[i]);
               pvaClientPut[i]->issuePut();
         }
         if(isConnected[i]) {
              Status status = pvaClientPut[i]->waitPut();
              if(status.isOK())  continue;
              string message = string("channel ") + pvaClientChannelArray[i]->getChannelName()
                   + " PvaChannelPut::waitPut " + status.getMessage();
              throw std::runtime_error(message);
         }
    }
}

static void testPVScalar(
    string const & valueNameMaster,
    string const & valueNameCopy,
    PVStructurePtr const & pvMaster,
    PVCopyPtr const & pvCopy)
{
    PVStructurePtr pvStructureCopy;
    PVScalarPtr pvValueMaster;
    PVScalarPtr pvValueCopy;
    BitSetPtr bitSet;
    size_t offset;
    ConvertPtr convert = getConvert();

    pvValueMaster = pvMaster->getSubField<PVScalar>(valueNameMaster);
    convert->fromDouble(pvValueMaster,.04);
    StructureConstPtr structure = pvCopy->getStructure();
    if(debug) { cout << "structure from copy" << endl << *structure << endl; }
    pvStructureCopy = pvCopy->createPVStructure();
    pvValueCopy = pvStructureCopy->getSubField<PVScalar>(valueNameCopy);
    bitSet = BitSetPtr(new BitSet(pvStructureCopy->getNumberFields()));
    pvCopy->initCopy(pvStructureCopy, bitSet);
    if(debug) { cout << "after initCopy pvValueCopy " << convert->toDouble(pvValueCopy); }
    if(debug) { cout << endl; }
    convert->fromDouble(pvValueMaster,.06);
    testOk1(convert->toDouble(pvValueCopy)==.04);
    pvCopy->updateCopySetBitSet(pvStructureCopy,bitSet);
    testOk1(convert->toDouble(pvValueCopy)==.06);
    testOk1(bitSet->get(pvValueCopy->getFieldOffset()));
    if(debug) { cout << "after put(.06) pvValueCopy " << convert->toDouble(pvValueCopy); }
    if(debug) { cout << " bitSet " << *bitSet; }
    if(debug) { cout << endl; }
    offset = pvCopy->getCopyOffset(pvValueMaster);
    if(debug) { cout << "getCopyOffset() " << offset; }
    if(debug) { cout << " pvValueCopy->getOffset() " << pvValueCopy->getFieldOffset(); }
    if(debug) { cout << " pvValueMaster->getOffset() " << pvValueMaster->getFieldOffset(); }
    if(debug) { cout << " bitSet " << *bitSet; }
    if(debug) { cout << endl; }
    bitSet->clear();
    convert->fromDouble(pvValueMaster,1.0);
    if(debug) { cout << "before updateCopyFromBitSet"; }
    if(debug) { cout << " masterValue " << convert->toDouble(pvValueMaster); }
    if(debug) { cout << " copyValue " << convert->toDouble(pvValueCopy); }
    if(debug) { cout << " bitSet " << *bitSet; }
    if(debug) { cout << endl; }
    bitSet->set(0);
    testOk1(convert->toDouble(pvValueCopy)==0.06);
    pvCopy->updateCopyFromBitSet(pvStructureCopy,bitSet);
    testOk1(convert->toDouble(pvValueCopy)==1.0);
    if(debug) { cout << "after updateCopyFromBitSet"; }
    if(debug) { cout << " masterValue " << convert->toDouble(pvValueMaster); }
    if(debug) { cout << " copyValue " << convert->toDouble(pvValueCopy); }
    if(debug) { cout << " bitSet " << *bitSet; }
    if(debug) { cout << endl; }
    convert->fromDouble(pvValueCopy,2.0);
    bitSet->set(0);
    if(debug) { cout << "before updateMaster"; }
    if(debug) { cout << " masterValue " << convert->toDouble(pvValueMaster); }
    if(debug) { cout << " copyValue " << convert->toDouble(pvValueCopy); }
    if(debug) { cout << " bitSet " << *bitSet; }
    if(debug) { cout << endl; }
    testOk1(convert->toDouble(pvValueMaster)==1.0);
    pvCopy->updateMaster(pvStructureCopy,bitSet);
    testOk1(convert->toDouble(pvValueMaster)==2.0);
    if(debug) { cout << "after updateMaster"; }
    if(debug) { cout << " masterValue " << convert->toDouble(pvValueMaster); }
    if(debug) { cout << " copyValue " << convert->toDouble(pvValueCopy); }
    if(debug) { cout << " bitSet " << *bitSet; }
    if(debug) { cout << endl; }
}

static void testPVScalar(
    string const & valueNameRecord,
    string const & valueNameCopy,
    PVRecordPtr const & pvRecord,
    PVCopyPtr const & pvCopy)
{
    PVStructurePtr pvStructureRecord;
    PVStructurePtr pvStructureCopy;
    PVFieldPtr pvField;
    PVScalarPtr pvValueRecord;
    PVScalarPtr pvValueCopy;
    BitSetPtr bitSet;
    size_t offset;
    ConvertPtr convert = getConvert();

    cout << endl;
    pvStructureRecord = pvRecord->getPVRecordStructure()->getPVStructure();
    pvField = pvStructureRecord->getSubField(valueNameRecord);
    pvValueRecord = static_pointer_cast<PVScalar>(pvField);
    convert->fromDouble(pvValueRecord,.04);
    StructureConstPtr structure = pvCopy->getStructure();
    cout << "structure from copy" << endl << *structure << endl;
    pvStructureCopy = pvCopy->createPVStructure();
    pvField = pvStructureCopy->getSubField(valueNameCopy);
    pvValueCopy = static_pointer_cast<PVScalar>(pvField);
    bitSet = BitSetPtr(new BitSet(pvStructureCopy->getNumberFields()));
    pvCopy->initCopy(pvStructureCopy, bitSet);
    cout << "after initCopy pvValueCopy " << convert->toDouble(pvValueCopy);
    cout << endl;
    convert->fromDouble(pvValueRecord,.06);
    pvCopy->updateCopySetBitSet(pvStructureCopy,bitSet);
    cout << "after put(.06) pvValueCopy " << convert->toDouble(pvValueCopy);
    cout << " bitSet " << *bitSet;
    cout << endl;
    offset = pvCopy->getCopyOffset(pvValueRecord);
    cout << "getCopyOffset() " << offset;
    cout << " pvValueCopy->getOffset() " << pvValueCopy->getFieldOffset();
    cout << " pvValueRecord->getOffset() " << pvValueRecord->getFieldOffset();
    cout << " bitSet " << *bitSet;
    cout << endl;
    bitSet->clear();
    convert->fromDouble(pvValueRecord,1.0);
    cout << "before updateCopyFromBitSet";
    cout << " recordValue " << convert->toDouble(pvValueRecord);
    cout << " copyValue " << convert->toDouble(pvValueCopy);
    cout << " bitSet " << *bitSet;
    cout << endl;
    bitSet->set(0);
    pvCopy->updateCopyFromBitSet(pvStructureCopy,bitSet);
    cout << "after updateCopyFromBitSet";
    cout << " recordValue " << convert->toDouble(pvValueRecord);
    cout << " copyValue " << convert->toDouble(pvValueCopy);
    cout << " bitSet " << *bitSet;
    cout << endl;
    convert->fromDouble(pvValueCopy,2.0);
    bitSet->set(0);
    cout << "before updateMaster";
    cout << " recordValue " << convert->toDouble(pvValueRecord);
    cout << " copyValue " << convert->toDouble(pvValueCopy);
    cout << " bitSet " << *bitSet;
    cout << endl;
    pvCopy->updateMaster(pvStructureCopy,bitSet);
    cout << "after updateMaster";
    cout << " recordValue " << convert->toDouble(pvValueRecord);
    cout << " copyValue " << convert->toDouble(pvValueCopy);
    cout << " bitSet " << *bitSet;
    cout << endl;
}

//.........这里部分代码省略.........
        }
        case pvDouble: {
             pvStructure = standardPVField->scalar(
                 stype,allProperties);
             hasValueAlarm = true;
             hasDisplayControl = true;
             PVDoublePtr pvField = pvStructure->getSubField<PVDouble>("value");
             pvField->put(1.123e35);
             break;
        }
        case pvString: {
             pvStructure = standardPVField->scalar(
                 stype,alarmTimeStamp);
             PVStringPtr pvField = pvStructure->getSubField<PVString>("value");
             pvField->put(string("this is a string"));
             break;
        }
    }
    PVLongPtr seconds = pvStructure->getSubField<PVLong>(
        string("timeStamp.secondsPastEpoch"));
    testOk1(seconds.get()!=0);
    seconds->put(123456789);
    PVIntPtr nano = pvStructure->getSubField<PVInt>(string("timeStamp.nanoseconds"));
    testOk1(nano.get()!=0);
    nano->put(1000000);
    PVIntPtr severity = pvStructure->getSubField<PVInt>(string("alarm.severity"));
    testOk1(severity.get()!=0);
    severity->put(2);
    PVStringPtr message = pvStructure->getSubField<PVString>(string("alarm.message"));
    testOk1(message.get()!=0);
    message->put(string("messageForAlarm"));
    if(hasDisplayControl) {
        PVStringPtr desc = pvStructure->getSubField<PVString>(
            string("display.description"));
        testOk1(desc.get()!=0);
        desc->put(string("this is a description"));
        PVStringPtr format = pvStructure->getSubField<PVString>(
            string("display.format"));
        testOk1(format.get()!=0);
        format->put(string("f10.2"));
        PVStringPtr units = pvStructure->getSubField<PVString>(
            string("display.units"));
        testOk1(units.get()!=0);
        units->put(string("SomeUnits"));
        PVDoublePtr limit = pvStructure->getSubField<PVDouble>(
            string("display.limitLow"));
        testOk1(limit.get()!=0);
        limit->put(0.0);
        limit = pvStructure->getSubField<PVDouble>(
            string("display.limitHigh"));
        testOk1(limit.get()!=0);
        limit->put(10.0);
        limit = pvStructure->getSubField<PVDouble>(
            string("control.limitLow"));
        testOk1(limit.get()!=0);
        limit->put(1.0);
        limit = pvStructure->getSubField<PVDouble>(
            string("control.limitHigh"));
        testOk1(limit.get()!=0);
        limit->put(9.0);
    }
    if(hasValueAlarm) {
        PVBooleanPtr pvBoolean = pvStructure->getSubField<PVBoolean>("valueAlarm.active");
        pvBoolean->put(true);
        PVScalarPtr pvtemp = pvStructure->getSubField<PVScalar>("valueAlarm.lowAlarmLimit");
        testOk1(pvtemp.get()!=0);
        convert->fromDouble(pvtemp,1.0);
        pvtemp = pvStructure->getSubField<PVScalar>("valueAlarm.highAlarmLimit");
        testOk1(pvtemp.get()!=0);
        convert->fromDouble(pvtemp,9.0);
        severity = pvStructure->getSubField<PVInt>(
            string("valueAlarm.lowAlarmSeverity"));
        testOk1(severity.get()!=0);
        severity->put(2);
        severity = pvStructure->getSubField<PVInt>(
            string("valueAlarm.highAlarmSeverity"));
        testOk1(severity.get()!=0);
        severity->put(2);
        PVBooleanPtr active = pvStructure->getSubField<PVBoolean>(
            string("valueAlarm.active"));
        testOk1(active.get()!=0);
        active->put(true);
    }
    if(hasBooleanAlarm) {
        PVBooleanPtr pvBoolean = pvStructure->getSubField<PVBoolean>("valueAlarm.active");
        pvBoolean->put(true);
        severity = pvStructure->getSubField<PVInt>(
            string("valueAlarm.falseSeverity"));
        testOk1(severity.get()!=0);
        severity->put(0);
        severity = pvStructure->getSubField<PVInt>(
            string("valueAlarm.trueSeverity"));
        testOk1(severity.get()!=0);
        severity->put(2);
        severity = pvStructure->getSubField<PVInt>(
            string("valueAlarm.changeStateSeverity"));
        testOk1(severity.get()!=0);
        severity->put(1);
    }
}