bool ExampleLink::init()
{
initPVRecord();
PVStructurePtr pvStructure = getPVRecordStructure()->getPVStructure();
pvValue = pvStructure->getSubField<PVDoubleArray>("value");
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;
}
PVStructurePtr pvRequest = CreateRequest::create()->createRequest(
"value");
MonitorRequester::shared_pointer monitorRequester =
dynamic_pointer_cast<MonitorRequester>(getPtrSelf());
monitor = channel->createMonitor(monitorRequester,pvRequest);
return true;
}
bool ExampleGetLinkRecord::init(PvaClientPtr const & pva,string const & channelName,string const & providerName)
{
initPVRecord();
PVStructurePtr pvStructure = getPVRecordStructure()->getPVStructure();
pvValue = pvStructure->getSubField<PVDoubleArray>("value");
if(!pvValue) {
return false;
}
pvaClientGet = pva->channel(channelName,providerName)->createGet();
return true;
}
bool ExampleMonitorLinkRecord::init(PvaClientPtr const & pva,string const & channelName,string const & providerName)
{
initPVRecord();
PVStructurePtr pvStructure = getPVRecordStructure()->getPVStructure();
pvValue = pvStructure->getSubField<PVDoubleArray>("value");
if(!pvValue) {
return false;
}
PvaClientChannelPtr pvaClientChannel = pva->channel(channelName,providerName,0.0);
monitorRequester = dynamic_pointer_cast<PvaClientMonitorRequester>(getPtrSelf());
pvaClientMonitor = pvaClientChannel->monitor("value",monitorRequester);
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;
}
