PVRecordFieldPtr PVRecord::findPVRecordField(
PVRecordStructurePtr const & pvrs,
PVFieldPtr const & pvField)
{
size_t desiredOffset = pvField->getFieldOffset();
PVFieldPtr pvf = pvrs->getPVField();
size_t offset = pvf->getFieldOffset();
if(offset==desiredOffset) return pvrs;
PVRecordFieldPtrArrayPtr pvrfpap = pvrs->getPVRecordFields();
PVRecordFieldPtrArray::iterator iter;
for (iter = pvrfpap.get()->begin(); iter!=pvrfpap.get()->end(); iter++ ) {
PVRecordFieldPtr pvrf = *iter;
pvf = pvrf->getPVField();
offset = pvf->getFieldOffset();
if(offset==desiredOffset) return pvrf;
size_t nextOffset = pvf->getNextFieldOffset();
if(nextOffset<=desiredOffset) continue;
return findPVRecordField(
static_pointer_cast<PVRecordStructure>(pvrf),
pvField);
}
throw std::logic_error(
recordName + " pvField "
+ pvField->getFieldName() + " not in PVRecord");
}
void PVStructure::deserialize(ByteBuffer *pbuffer,
DeserializableControl *pcontrol, BitSet *pbitSet) {
size_t offset = getFieldOffset();
size_t numberFields = getNumberFields();
int32 next = pbitSet->nextSetBit(offset);
// no more changes or no changes in this structure
if(next<0||next>=static_cast<int32>(offset+numberFields)) return;
// entire structure
if(static_cast<int32>(offset)==next) {
deserialize(pbuffer, pcontrol);
return;
}
size_t fieldsSize = pvFields.size();
for(size_t i = 0; i<fieldsSize; i++) {
PVFieldPtr pvField = pvFields[i];
offset = pvField->getFieldOffset();
int32 inumberFields = pvField->getNumberFields();
next = pbitSet->nextSetBit(offset);
// no more changes
if(next<0) return;
// no change in this pvField
if(next>=static_cast<int32>(offset+inumberFields)) continue;
// deserialize field or fields
if(inumberFields==1) {
pvField->deserialize(pbuffer, pcontrol);
} else {
PVStructurePtr pvStructure = std::tr1::static_pointer_cast<PVStructure>(pvField);
pvStructure->deserialize(pbuffer, pcontrol, pbitSet);
}
}
}
PVFieldPtr PVStructure::getSubField(size_t fieldOffset) const
{
if(fieldOffset<=getFieldOffset()) {
return nullPVField;
}
if(fieldOffset>getNextFieldOffset()) return nullPVField;
size_t numFields = pvFields.size();
for(size_t i=0; i<numFields; i++) {
PVFieldPtr pvField = pvFields[i];
if(pvField->getFieldOffset()==fieldOffset) return pvFields[i];
if(pvField->getNextFieldOffset()<=fieldOffset) continue;
if(pvField->getField()->getType()==structure) {
PVStructure *pvStructure = static_cast<PVStructure *>(pvField.get());
return pvStructure->getSubField(fieldOffset);
}
}
throw std::logic_error("PVStructure.getSubField: Logic error");
}
static void test()
{
std::ostringstream oss;
testDiag("\ntestBitSetUtil\n");
StringArray fieldNames;
PVFieldPtrArray pvFields;
fieldNames.reserve(5);
pvFields.reserve(5);
fieldNames.push_back("timeStamp");
fieldNames.push_back("alarm");
fieldNames.push_back("voltage");
fieldNames.push_back("power");
fieldNames.push_back("current");
pvFields.push_back(
pvDataCreate->createPVStructure(standardField->timeStamp()));
pvFields.push_back(
pvDataCreate->createPVStructure(standardField->alarm()));
pvFields.push_back(
pvDataCreate->createPVStructure(
standardField->scalar(pvDouble,"alarm")));
pvFields.push_back(
pvDataCreate->createPVStructure(
standardField->scalar(pvDouble,"alarm")));
pvFields.push_back(
pvDataCreate->createPVStructure(
standardField->scalar(pvDouble,"alarm")));
PVStructurePtr pvs = pvDataCreate->createPVStructure(
fieldNames,pvFields);
int32 nfields = (int32)pvs->getNumberFields();
BitSetPtr bitSet = BitSet::create(nfields);
for(int32 i=0; i<nfields; i++) bitSet->set(i);
BitSetUtil::compress(bitSet,pvs);
bitSet->clear();
PVFieldPtr pvField = pvs->getSubField<PVStructure>("timeStamp");
int32 offsetTimeStamp = (int32)pvField->getFieldOffset();
pvField = pvs->getSubField<PVLong>("timeStamp.secondsPastEpoch");
int32 offsetSeconds = (int32)pvField->getFieldOffset();
pvField = pvs->getSubField<PVInt>("timeStamp.nanoseconds");
int32 offsetNano = (int32)pvField->getFieldOffset();
pvField = pvs->getSubField<PVInt>("timeStamp.userTag");
int32 offsetUserTag = (int32)pvField->getFieldOffset();
bitSet->set(offsetSeconds);
BitSetUtil::compress(bitSet,pvs);
testOk1(bitSet->get(offsetSeconds)==true);
bitSet->set(offsetNano);
bitSet->set(offsetUserTag);
BitSetUtil::compress(bitSet,pvs);
testOk1(bitSet->get(offsetSeconds)==false);
testOk1(bitSet->get(offsetTimeStamp)==true);
bitSet->clear();
pvField = pvs->getSubField<PVStructure>("current");
int32 offsetCurrent = (int32)pvField->getFieldOffset();
pvField = pvs->getSubField<PVDouble>("current.value");
int32 offsetValue = (int32)pvField->getFieldOffset();
pvField = pvs->getSubField<PVStructure>("current.alarm");
int32 offsetAlarm = (int32)pvField->getFieldOffset();
pvField = pvs->getSubField<PVInt>("current.alarm.severity");
int32 offsetSeverity = (int32)pvField->getFieldOffset();
pvField = pvs->getSubField<PVInt>("current.alarm.status");
int32 offsetStatus = (int32)pvField->getFieldOffset();
pvField = pvs->getSubField<PVString>("current.alarm.message");
int32 offsetMessage = (int32)pvField->getFieldOffset();
bitSet->set(offsetValue);
bitSet->set(offsetSeverity);
bitSet->set(offsetStatus);
bitSet->set(offsetMessage);
BitSetUtil::compress(bitSet,pvs);
testOk1(bitSet->get(offsetCurrent)==true);
bitSet->clear();
bitSet->set(offsetSeverity);
bitSet->set(offsetStatus);
bitSet->set(offsetMessage);
BitSetUtil::compress(bitSet,pvs);
testOk1(bitSet->get(offsetAlarm)==true);
bitSet->clear();
printf("testBitSetUtil PASSED\n");
}
