C++ PVStructurePtr::getScalarArrayField方法代码示例

bool PVEnumerated::attach(PVFieldPtr const & pvField)
{
    if(pvField->getField()->getType()!=structure) return false;
    PVStructurePtr pvStructure = static_pointer_cast<PVStructure>(pvField);
    pvIndex = pvStructure->getIntField("index");
    if(pvIndex.get()==NULL) return false;
    PVScalarArrayPtr pvScalarArray = pvStructure->getScalarArrayField(
        "choices",pvString);
    if(pvScalarArray.get()==NULL) {
        pvIndex.reset();
        return false;
    }
    pvChoices = static_pointer_cast<PVStringArray>(pvScalarArray);
    return true;
}

bool ExampleLink::init()
{
    initPVRecord();

    PVStructurePtr pvStructure = getPVRecordStructure()->getPVStructure();
    pvTimeStamp.attach(pvStructure->getSubField("timeStamp"));
    pvAlarm.attach(pvStructure->getSubField("alarm"));
    pvValue = static_pointer_cast<PVDoubleArray>(
        pvStructure->getScalarArrayField("value",pvDouble));
    if(!pvValue) {
        return false;
    }
    ChannelProvider::shared_pointer provider =
        getChannelProviderRegistry()->getProvider(providerName);
    if(!provider) {
         cout << getRecordName() << " provider "
              << providerName << " does not exist" << endl;
        return false;
    }
    ChannelRequester::shared_pointer channelRequester =
        dynamic_pointer_cast<ChannelRequester>(getPtrSelf());
    channel = provider->createChannel(channelName,channelRequester);
    event.wait();
    if(!status.isOK()) {
        cout << getRecordName() << " createChannel failed "
             << status.getMessage() << endl;
        return false;
    }
    ChannelGetRequester::shared_pointer channelGetRequester =
        dynamic_pointer_cast<ChannelGetRequester>(getPtrSelf());
    PVStructurePtr pvRequest = CreateRequest::create()->createRequest(
        "value,alarm,timeStamp");
    channelGet = channel->createChannelGet(channelGetRequester,pvRequest);
    event.wait();
    if(!status.isOK()) {
        cout << getRecordName() << " createChannelGet failed "
             << status.getMessage() << endl;
        return false;
    }
    getPVValue = static_pointer_cast<PVDoubleArray>(
        getPVStructure->getScalarArrayField("value",pvDouble));
    if(!getPVValue) {
        cout << getRecordName() << " get value not  PVDoubleArray" << endl;
        return false;
    }
    return true;
}

bool RecordListRecord::init()
{
    initPVRecord();
    PVStructurePtr pvStructure = getPVStructure();
    database = pvStructure->getStringField("argument.database");
    if(database.get()==NULL) return false;
    regularExpression = pvStructure->getStringField(
        "argument.regularExpression");
    if(regularExpression.get()==NULL) return false;
    status = pvStructure->getStringField("result.status");
    if(status.get()==NULL) return false;
    PVFieldPtr pvField = pvStructure->getSubField("result.names");
    if(pvField.get()==NULL) {
        std::cerr << "no result.names" << std::endl;
        return false;
    }
    name = static_pointer_cast<PVStringArray>(
         pvStructure->getScalarArrayField("result.names",pvString));
    if(name.get()==NULL) return false;
    return true;
}

static void testPVScalarArray(
    ScalarType scalarType,
    string const & valueNameRecord,
    string const & valueNameCopy,
    PVRecordPtr const & pvRecord,
    PVCopyPtr const & pvCopy)
{
    PVStructurePtr pvStructureRecord;
    PVStructurePtr pvStructureCopy;
    PVScalarArrayPtr pvValueRecord;
    PVScalarArrayPtr pvValueCopy;
    BitSetPtr bitSet;
    size_t offset;
    size_t n = 5;
    shared_vector<double> values(n);
    cout << endl;
    pvStructureRecord = pvRecord->getPVRecordStructure()->getPVStructure();
    pvValueRecord = pvStructureRecord->getScalarArrayField(valueNameRecord,scalarType);
    for(size_t i=0; i<n; i++) values[i] = i;
    const shared_vector<const double> xxx(freeze(values));
    pvValueRecord->putFrom(xxx);
    StructureConstPtr structure = pvCopy->getStructure();
    cout << "structure from copy" << endl << *structure << endl;
    pvStructureCopy = pvCopy->createPVStructure();
    pvValueCopy = pvStructureCopy->getScalarArrayField(valueNameCopy,scalarType);
    bitSet = BitSetPtr(new BitSet(pvStructureCopy->getNumberFields()));
    pvCopy->initCopy(pvStructureCopy, bitSet);
    cout << "after initCopy pvValueCopy " << *pvValueCopy << endl;
    cout << endl;
    values.resize(n);
    for(size_t i=0; i<n; i++) values[i] = i + .06;
    const shared_vector<const double> yyy(freeze(values));
    pvValueRecord->putFrom(yyy);
    pvCopy->updateCopySetBitSet(pvStructureCopy,bitSet);
    cout << "after put(i+ .06) pvValueCopy " << *pvValueCopy << endl;
    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();
    values.resize(n);
    for(size_t i=0; i<n; i++) values[i] = i + 1.0;
    const shared_vector<const double> zzz(freeze(values));
    pvValueRecord->putFrom(zzz);
    cout << "before updateCopyFromBitSet";
    cout << " recordValue " << *pvValueRecord << endl;
    cout << " copyValue " << *pvValueCopy << endl;
    cout << " bitSet " << *bitSet;
    cout << endl;
    bitSet->set(0);
    pvCopy->updateCopyFromBitSet(pvStructureCopy,bitSet);
    cout << "after updateCopyFromBitSet";
    cout << " recordValue " << *pvValueRecord << endl;
    cout << " copyValue " << *pvValueCopy << endl;
    cout << " bitSet " << *bitSet;
    cout << endl;
    values.resize(n);
    for(size_t i=0; i<n; i++) values[i] = i + 2.0;
    const shared_vector<const double> ttt(freeze(values));
    pvValueRecord->putFrom(ttt);
    bitSet->set(0);
    cout << "before updateMaster";
    cout << " recordValue " << *pvValueRecord << endl;
    cout << " copyValue " << *pvValueCopy << endl;
    cout << " bitSet " << *bitSet;
    cout << endl;
    pvCopy->updateMaster(pvStructureCopy,bitSet);
    cout << "after updateMaster";
    cout << " recordValue " << *pvValueRecord << endl;
    cout << " copyValue " << *pvValueRecord << endl;
    cout << " bitSet " << *bitSet;
    cout << endl;
}

void test()
{
    String builder;
    int n = 9;
    StringArray channelName(n);
    channelName[0] = "masarExample0000";
    channelName[1] = "masarExample0001";
    channelName[2] = "masarExample0002";
    channelName[3] = "masarExample0003";
    channelName[4] = "masarExample0004";
    channelName[5] = "masarExampleCharArray";
    channelName[6] = "masarExampleStringArray";
    channelName[7] = "masarExampleLongArray";
    channelName[8] = "masarExampleDoubleArray";
    GatherV3DataPtr gather(new GatherV3Data(channelName,n));
    bool result = gather->connect(5.0);
    if(!result) {
        printf("connect failed\n%s\n",gather->getMessage().c_str());
        printf("This test requires iocBoot/iocAll ");
        printf("It must be started before running this test\n");
        exit(1);
    }
    NTTablePtr nttable = gather->getNTTable();
    BooleanArrayData booldata;
    PVBooleanArrayPtr pvIsArray = static_pointer_cast<PVBooleanArray>
            (nttable->getPVStructure()->getScalarArrayField("isArray",pvBoolean));
    pvIsArray->get(0,n,booldata);
    BooleanArray & isArray = booldata.data;
    DoubleArrayData ddata;
    gather->getDoubleValue()->get(0,n,ddata);
    DoubleArray & dvalue = ddata.data;
    StringArrayData sdata;
    gather->getStringValue()->get(0,n,sdata);
    StringArray & svalue = sdata.data;
    LongArrayData ldata;
    gather->getLongValue()->get(0,n,ldata);
    LongArray & lvalue = ldata.data;
    IntArrayData idata;
    StructureArrayData structdata;
    gather->getArrayValue()->get(0,n,structdata);
    PVStructurePtrArray & structvalue = structdata.data;
    gather->getDBRType()->get(0,n,idata);
    IntArray & dbrType = idata.data;
    for(int i=0; i<n; i++) {
        if(isArray[i]) {
            PVStructurePtr pvStructure = structvalue[i];
            switch(dbrType[i]) {
            case DBF_STRING: {
                PVStringArrayPtr pvValue = static_pointer_cast<PVStringArray>(
                    pvStructure->getScalarArrayField("stringValue",pvString));
                int num = 4;
                String value[4];
                value[0] = "aaa";
                value[1] = "bbb";
                value[2] = "ccc";
                value[3] = "ddd";
                pvValue->put(0,num,value,0);
                break;
            }
            case DBF_CHAR:
            case DBF_INT:
            case DBF_LONG: {
                PVIntArrayPtr pvValue = static_pointer_cast<PVIntArray>(
                    pvStructure->getScalarArrayField("intValue",pvInt));
                int num = 4;
                int32 value[4] = {1,2,3,4};
                pvValue->put(0,num,value,0);
                 break;
            }
            case DBF_FLOAT:
            case DBF_DOUBLE: {
                PVDoubleArrayPtr pvValue = static_pointer_cast<PVDoubleArray>(
                    pvStructure->getScalarArrayField("doubleValue",pvDouble));
                int num = 4;
                double value[4] = {1e1,1e2,1e3,1e4};
                pvValue->put(0,num,value,0);
                 break;
            }
            default:
                printf("got an unexpected DBF type. Logic error\n");
                exit(1);
            }
            continue;
        }
        switch(dbrType[i]) {
        case DBF_STRING:
             svalue[i] = String("this is set by gatherV3DataPut"); break;
        case DBF_ENUM:
             svalue[i] = String("one"); break;
        case DBF_CHAR:
        case DBF_INT:
        case DBF_LONG:
             lvalue[i] = i; break;
        case DBF_FLOAT:
        case DBF_DOUBLE:
             dvalue[i] = i; break;
        default:
            printf("got an unexpected DBF type. Logic error\n");
            exit(1);
        }
//.........这里部分代码省略.........

void ExampleServiceRPC::request(
    ChannelRPCRequester::shared_pointer const & channelRPCRequester,
    epics::pvData::PVStructure::shared_pointer const & pvArgument)
{
    String buffer;
    PVStringPtr pvfunction = pvArgument->getStringField("function");
    PVStringArrayPtr pvnames = static_pointer_cast<PVStringArray>
        (pvArgument->getScalarArrayField("names",pvString));
    PVStringArrayPtr pvvalues = static_pointer_cast<PVStringArray>
        (pvArgument->getScalarArrayField("values",pvString));
    buffer += "pvArgument ";
    bool is = true;
    if(pvfunction==0) is = false;
    if(pvnames==0) is = false;
    if(pvvalues==0) is = false;
    if(is) {
        buffer += "is a NTNameValue\n";
    } else {
        buffer += "is not a NTNameValue\n ";
    }
    pvArgument->toString(&buffer);
    printf("%s\n",buffer.c_str());
    StandardFieldPtr standardField = getStandardField();
    StandardPVFieldPtr standardPVField = getStandardPVField();
    FieldCreatePtr  fieldCreate = getFieldCreate();
    PVDataCreatePtr  pvDataCreate = getPVDataCreate();
    size_t n = 5;
    FieldConstPtrArray fields;
    StringArray names;
    fields.reserve(n);
    names.reserve(n);
    names.push_back("alarm");
    names.push_back("timeStamp");
    names.push_back("label");
    names.push_back("position");
    names.push_back("alarms");
StructureConstPtr xxx = standardField->alarm();
printf("xxx %p\n",xxx.get());
    fields.push_back(standardField->alarm());
    fields.push_back(standardField->timeStamp());
    fields.push_back(fieldCreate->createScalarArray(pvString));
    fields.push_back(fieldCreate->createScalarArray(pvDouble));
    fields.push_back(fieldCreate->createStructureArray(standardField->alarm()));
    StructureConstPtr structure = fieldCreate->createStructure(names,fields);
printf("structure %p\n",structure.get());
buffer.clear();
structure->toString(&buffer);
printf("structure\n%s\n",buffer.c_str());
    PVStructurePtr pvStructure = pvDataCreate->createPVStructure(structure);
    PVTimeStamp pvTimeStamp;
    TimeStamp timeStamp;
    pvTimeStamp.attach(pvStructure->getStructureField("timeStamp"));
    timeStamp.getCurrent();
    pvTimeStamp.set(timeStamp);
    StringArray label;
    label.reserve(2);
    for(int i=0; i<2; i++) {
        label.push_back(names[i+3]);
    }
    PVStringArrayPtr pvLabel = static_pointer_cast<PVStringArray>
        (pvStructure->getScalarArrayField("label",pvString));
    pvLabel->put(0,2,label,0);
    PVDoubleArrayPtr pvPositions = static_pointer_cast<PVDoubleArray>
        (pvStructure->getScalarArrayField("position",pvDouble));
    double positions[2];
    positions[0] = 1.0;
    positions[1] = 2.0;
    pvPositions->put(0,2,positions,0);
    PVStructureArrayPtr pvAlarms = static_pointer_cast<PVStructureArray>
        (pvStructure->getStructureArrayField("alarms"));
    PVAlarm pvAlarm;
    Alarm alarm;
    PVStructurePtrArray palarms;
    size_t na=2;
    palarms.reserve(na);
    for(size_t i=0; i<na; i++) {
        palarms.push_back(pvDataCreate->createPVStructure(standardField->alarm()));
    }
    for(size_t i=0; i<na; i++) {
        pvAlarm.attach(palarms[i]);
        alarm.setMessage("test");
        alarm.setSeverity(majorAlarm);
        alarm.setStatus(clientStatus);
        pvAlarm.set(alarm);
    }
    pvAlarms->put(0,2,palarms,0);
    String labels[2];
    labels[0] = pvPositions->getFieldName();
    labels[1] = pvAlarms->getFieldName();
    pvLabel->put(0,2,labels,0);
    buffer.erase();
    pvStructure->toString(&buffer);
    printf("%s\n",buffer.c_str());
    channelRPCRequester->requestDone(Status::Ok,pvStructure);
}