ChannelGetLocalPtr ChannelGetLocal::create(
ChannelLocalPtr const &channelLocal,
ChannelGetRequester::shared_pointer const & channelGetRequester,
PVStructurePtr const & pvRequest,
PVRecordPtr const &pvRecord)
{
PVCopyPtr pvCopy = PVCopy::create(
pvRecord->getPVRecordStructure()->getPVStructure(),
pvRequest,
"");
if(!pvCopy) {
Status status(
Status::STATUSTYPE_ERROR,
"invalid pvRequest");
ChannelGet::shared_pointer channelGet;
channelGetRequester->channelGetConnect(
status,
channelGet,
nullStructure);
ChannelGetLocalPtr localGet;
return localGet;
}
PVStructurePtr pvStructure = pvCopy->createPVStructure();
BitSetPtr bitSet(new BitSet(pvStructure->getNumberFields()));
ChannelGetLocalPtr get(new ChannelGetLocal(
getProcess(pvRequest,false),
channelLocal,
channelGetRequester,
pvCopy,
pvStructure,
bitSet,
pvRecord));
if(pvRecord->getTraceLevel()>0)
{
cout << "ChannelGetLocal::create";
cout << " recordName " << pvRecord->getRecordName() << endl;
}
channelGetRequester->channelGetConnect(
Status::Ok,get,pvStructure->getStructure());
return get;
}
void ChannelGetLocal::get()
{
ChannelGetRequester::shared_pointer requester = channelGetRequester.lock();
if(!requester) return;
if(isDestroyed) {
requester->getDone(
channelDestroyedStatus,getPtrSelf(),nullPVStructure,nullBitSet);
return;
}
try {
bitSet->clear();
{
epicsGuard <PVRecord> guard(*pvRecord);
if(callProcess) {
pvRecord->beginGroupPut();
pvRecord->process();
pvRecord->endGroupPut();
}
pvCopy->updateCopySetBitSet(pvStructure, bitSet);
}
if(firstTime) {
bitSet->clear();
bitSet->set(0);
firstTime = false;
}
requester->getDone(
Status::Ok,
getPtrSelf(),
pvStructure,
bitSet);
if(pvRecord->getTraceLevel()>1)
{
cout << "ChannelGetLocal::get" << endl;
}
} catch(std::exception& ex) {
Status status = Status(Status::STATUSTYPE_FATAL, ex.what());
requester->getDone(status,getPtrSelf(),pvStructure,bitSet);
}
}
ChannelGet::shared_pointer ChannelBase::createChannelGet(
ChannelGetRequester::shared_pointer const &channelGetRequester,
PVStructure::shared_pointer const &pvRequest)
{
Status status(Status::STATUSTYPE_ERROR,
String("ChannelGet not supported"));
channelGetRequester->channelGetConnect(
status,
ChannelGet::shared_pointer(),
PVStructure::shared_pointer(),
BitSet::shared_pointer());
return ChannelGet::shared_pointer();
}
ChannelGet::shared_pointer DbPv::createChannelGet(
ChannelGetRequester::shared_pointer const &channelGetRequester,
PVStructure::shared_pointer const &pvRequest)
{
DbPvGet::shared_pointer dbPvGet(
new DbPvGet(getPtrSelf(),channelGetRequester));
if(!dbPvGet->init(pvRequest)) {
Status createFailed(Status::STATUSTYPE_ERROR, "create dbPvGet failed");
channelGetRequester->channelGetConnect(
createFailed,
dbPvGet,
nullStructure);
}
return dbPvGet;
}