void ChannelArrayLocal::setLength(size_t length)
{
ChannelArrayRequester::shared_pointer requester = channelArrayRequester.lock();
if(!requester) return;
if(isDestroyed) {
requester->setLengthDone(channelDestroyedStatus,getPtrSelf());
return;
}
if(pvRecord->getTraceLevel()>1)
{
cout << "ChannelArrayLocal::setLength" << endl;
}
try {
{
epicsGuard <PVRecord> guard(*pvRecord);
if(length>=0) {
if(pvArray->getLength()!=length) pvArray->setLength(length);
}
}
requester->setLengthDone(Status::Ok,getPtrSelf());
} catch(std::exception e) {
string exceptionMessage = e.what();
Status status = Status(Status::STATUSTYPE_ERROR,exceptionMessage);
requester->setLengthDone(status,getPtrSelf());
}
}
void ChannelArrayLocal::getArray(size_t offset, size_t count, size_t stride)
{
ChannelArrayRequester::shared_pointer requester = channelArrayRequester.lock();
if(!requester) return;
if(isDestroyed) {
requester->getArrayDone(channelDestroyedStatus,getPtrSelf(),pvCopy);
return;
}
if(pvRecord->getTraceLevel()>1)
{
cout << "ChannelArrayLocal::getArray" << endl;
}
if(offset<0) {
requester->getArrayDone(illegalOffsetStatus,getPtrSelf(),pvCopy);
return;
}
if(stride<0) {
requester->getArrayDone(illegalStrideStatus,getPtrSelf(),pvCopy);
return;
}
const char *exceptionMessage = NULL;
try {
bool ok = false;
epicsGuard <PVRecord> guard(*pvRecord);
while(true) {
size_t length = pvArray->getLength();
if(length<=0) break;
if(count<=0) {
count = (length -offset + stride -1)/stride;
if(count>0) ok = true;
break;
}
size_t maxcount = (length -offset + stride -1)/stride;
if(count>maxcount) count = maxcount;
ok = true;
break;
}
if(ok) {
pvCopy->setLength(count);
copy(pvArray,offset,stride,pvCopy,0,1,count);
}
} catch(std::exception e) {
exceptionMessage = e.what();
}
Status status = Status::Ok;
if(exceptionMessage!=NULL) {
status = Status(Status::STATUSTYPE_ERROR,exceptionMessage);
}
requester->getArrayDone(status,getPtrSelf(),pvCopy);
}
void ChannelArrayLocal::getLength()
{
ChannelArrayRequester::shared_pointer requester = channelArrayRequester.lock();
if(!requester) return;
size_t length = 0;
const char *exceptionMessage = NULL;
try {
epicsGuard <PVRecord> guard(*pvRecord);
length = pvArray->getLength();
} catch(std::exception e) {
exceptionMessage = e.what();
}
Status status = Status::Ok;
if(exceptionMessage!=NULL) {
status = Status(Status::STATUSTYPE_ERROR,exceptionMessage);
}
requester->getLengthDone(status,getPtrSelf(),length);
}
ChannelArray::shared_pointer CAChannel::createChannelArray(
ChannelArrayRequester::shared_pointer const & channelArrayRequester,
epics::pvData::PVStructure::shared_pointer const & /*pvRequest*/)
{
Status errorStatus(Status::STATUSTYPE_ERROR, "not supported");
ChannelArray::shared_pointer nullChannelArray;
EXCEPTION_GUARD(channelArrayRequester->channelArrayConnect(errorStatus, nullChannelArray,
Array::const_shared_pointer()));
return nullChannelArray;
}
ChannelArray::shared_pointer ChannelBase::createChannelArray(
ChannelArrayRequester::shared_pointer const &channelArrayRequester,
PVStructure::shared_pointer const &pvRequest)
{
Status status(Status::STATUSTYPE_ERROR,
String("ChannelArray not supported"));
channelArrayRequester->channelArrayConnect(
status,
ChannelArray::shared_pointer(),
PVArray::shared_pointer());
return ChannelArray::shared_pointer();
}
ChannelArray::shared_pointer DbPv::createChannelArray(
ChannelArrayRequester::shared_pointer const &channelArrayRequester,
PVStructure::shared_pointer const &pvRequest)
{
DbPvArray::shared_pointer dbPvArray(
new DbPvArray(getPtrSelf(),channelArrayRequester));
if(!dbPvArray->init(pvRequest)) {
Status createFailed(Status::STATUSTYPE_ERROR, "create dbPvArray failed");
ScalarArrayConstPtr xxx;
channelArrayRequester->channelArrayConnect(
createFailed,
dbPvArray,
xxx);
}
return dbPvArray;
}
void ChannelArrayLocal::putArray(
PVArrayPtr const & pvArray, size_t offset, size_t count, size_t stride)
{
ChannelArrayRequester::shared_pointer requester = channelArrayRequester.lock();
if(!requester) return;
if(isDestroyed) {
requester->putArrayDone(channelDestroyedStatus,getPtrSelf());
return;
}
if(pvRecord->getTraceLevel()>1)
{
cout << "ChannelArrayLocal::putArray" << endl;
}
if(offset<0) {
requester->putArrayDone(illegalOffsetStatus,getPtrSelf());
return;
}
if(count<0) {
requester->putArrayDone(illegalCountStatus,getPtrSelf());
return;
}
if(stride<0) {
requester->putArrayDone(illegalStrideStatus,getPtrSelf());
return;
}
size_t newLength = offset + count*stride;
if(newLength<pvArray->getLength()) pvArray->setLength(newLength);
const char *exceptionMessage = NULL;
try {
epicsGuard <PVRecord> guard(*pvRecord);
copy(pvArray,0,1,this->pvArray,offset,stride,count);
} catch(std::exception e) {
exceptionMessage = e.what();
}
Status status = Status::Ok;
if(exceptionMessage!=NULL) {
status = Status(Status::STATUSTYPE_ERROR,exceptionMessage);
}
requester->putArrayDone(status,getPtrSelf());
}
ChannelArrayLocalPtr ChannelArrayLocal::create(
ChannelLocalPtr const &channelLocal,
ChannelArrayRequester::shared_pointer const & channelArrayRequester,
PVStructurePtr const & pvRequest,
PVRecordPtr const &pvRecord)
{
PVFieldPtrArray const & pvFields = pvRequest->getPVFields();
if(pvFields.size()!=1) {
Status status(
Status::STATUSTYPE_ERROR,"invalid pvRequest");
ChannelArrayLocalPtr channelArray;
ArrayConstPtr array;
channelArrayRequester->channelArrayConnect(status,channelArray,array);
return channelArray;
}
PVFieldPtr pvField = pvFields[0];
string fieldName("");
while(true) {
string name = pvField->getFieldName();
if(fieldName.size()>0) fieldName += '.';
fieldName += name;
PVStructurePtr pvs = static_pointer_cast<PVStructure>(pvField);
PVFieldPtrArray const & pvfs = pvs->getPVFields();
if(pvfs.size()!=1) break;
pvField = pvfs[0];
}
size_t indfield = fieldName.find_first_of("field.");
if(indfield==0) {
fieldName = fieldName.substr(6);
}
pvField = pvRecord->getPVRecordStructure()->getPVStructure()->getSubField(fieldName);
if(!pvField) {
Status status(
Status::STATUSTYPE_ERROR,fieldName +" not found");
ChannelArrayLocalPtr channelArray;
ArrayConstPtr array;
channelArrayRequester->channelArrayConnect(
status,channelArray,array);
return channelArray;
}
if(pvField->getField()->getType()!=scalarArray
&& pvField->getField()->getType()!=structureArray
&& pvField->getField()->getType()!=unionArray)
{
Status status(
Status::STATUSTYPE_ERROR,fieldName +" not array");
ChannelArrayLocalPtr channelArray;
ArrayConstPtr array;
channelArrayRequester->channelArrayConnect(
status,channelArray,array);
return channelArray;
}
PVArrayPtr pvArray = static_pointer_cast<PVArray>(pvField);
PVArrayPtr pvCopy;
if(pvField->getField()->getType()==scalarArray) {
PVScalarArrayPtr xxx = static_pointer_cast<PVScalarArray>(pvField);
pvCopy = getPVDataCreate()->createPVScalarArray(
xxx->getScalarArray()->getElementType());
} else if(pvField->getField()->getType()==structureArray) {
PVStructureArrayPtr xxx = static_pointer_cast<PVStructureArray>(pvField);
pvCopy = getPVDataCreate()->createPVStructureArray(
xxx->getStructureArray()->getStructure());
} else {
PVUnionArrayPtr xxx = static_pointer_cast<PVUnionArray>(pvField);
pvCopy = getPVDataCreate()->createPVUnionArray(
xxx->getUnionArray()->getUnion());
}
ChannelArrayLocalPtr array(new ChannelArrayLocal(
channelLocal,
channelArrayRequester,
pvArray,
pvCopy,
pvRecord));
if(pvRecord->getTraceLevel()>0)
{
cout << "ChannelArrayLocal::create";
cout << " recordName " << pvRecord->getRecordName() << endl;
}
channelArrayRequester->channelArrayConnect(
Status::Ok, array, pvCopy->getArray());
return array;
}
