void Channel::put(const std::vector<std::string>& values, const std::string& requestDescriptor)
{
epics::pvData::PVStructure::shared_pointer pvRequest = epics::pvData::CreateRequest::create()->createRequest(requestDescriptor);
std::tr1::shared_ptr<ChannelRequesterImpl> channelRequesterImpl = std::tr1::dynamic_pointer_cast<ChannelRequesterImpl>(channel->getChannelRequester());
if (channel->getConnectionState() != epics::pvAccess::Channel::CONNECTED) {
if (!channelRequesterImpl->waitUntilConnected(timeout)) {
throw ChannelTimeout("Channel %s timed out", channel->getChannelName().c_str());
}
}
std::tr1::shared_ptr<ChannelPutRequesterImpl> putRequesterImpl(new ChannelPutRequesterImpl(channel->getChannelName()));
epics::pvAccess::ChannelPut::shared_pointer channelPut = channel->createChannelPut(putRequesterImpl, pvRequest);
if (putRequesterImpl->waitUntilDone(timeout)) {
epics::pvData::PVStructurePtr pvStructurePtr = putRequesterImpl->getStructure();
PvUtility::fromString(pvStructurePtr, values);
putRequesterImpl->resetEvent();
channelPut->put(pvStructurePtr, putRequesterImpl->getBitSet());
if (putRequesterImpl->waitUntilDone(timeout)) {
return;
}
}
throw ChannelTimeout("Channel %s put request timed out", channel->getChannelName().c_str());
}
PvObject* Channel::get(const std::string& requestDescriptor)
{
epics::pvData::PVStructure::shared_pointer pvRequest = epics::pvData::CreateRequest::create()->createRequest(requestDescriptor);
std::tr1::shared_ptr<ChannelRequesterImpl> channelRequesterImpl = std::tr1::dynamic_pointer_cast<ChannelRequesterImpl>(channel->getChannelRequester());
if (channel->getConnectionState() != epics::pvAccess::Channel::CONNECTED) {
if (!channelRequesterImpl->waitUntilConnected(timeout)) {
throw ChannelTimeout("Channel %s timed out", channel->getChannelName().c_str());
}
}
std::tr1::shared_ptr<GetFieldRequesterImpl> getFieldRequesterImpl;
getFieldRequesterImpl.reset(new GetFieldRequesterImpl(channel));
channel->getField(getFieldRequesterImpl, "");
if (!getFieldRequesterImpl->waitUntilFieldGet(timeout)) {
throw ChannelTimeout("Channel %s field get timed out", channel->getChannelName().c_str());
}
if (!getFieldRequesterImpl.get()) {
throw PvaException("Failed to get introspection data for channel %s", channel->getChannelName().c_str());
}
epics::pvData::Structure::const_shared_pointer structure =
std::tr1::dynamic_pointer_cast<const epics::pvData::Structure>(getFieldRequesterImpl->getField());
if (structure.get() == 0 || structure->getField("value").get() == 0) {
// fallback to structure
pvRequest = epics::pvData::CreateRequest::create()->createRequest("field()");
}
std::tr1::shared_ptr<ChannelGetRequesterImpl> getRequesterImpl(new ChannelGetRequesterImpl(channel->getChannelName()));
epics::pvAccess::ChannelGet::shared_pointer channelGet = channel->createChannelGet(getRequesterImpl, pvRequest);
if (getRequesterImpl->waitUntilGet(timeout)) {
return new PvObject(getRequesterImpl->getPVStructure());
}
throw ChannelTimeout("Channel %s get request timed out", channel->getChannelName().c_str());
}
epics::pvAccess::RPCClient::shared_pointer RpcClient::createRpcClient(const std::string& channelName, const epics::pvData::PVStructurePtr& pvRequest, double timeout)
{
#if defined PVA_RPC_API_VERSION && PVA_RPC_API_VERSION == 430
return epics::pvAccess::RPCClientFactory::create(channelName);
#endif // if defined PVA_RPC_API_VERSION && PVA_RPC_API_VERSION == 430
#if defined PVA_RPC_API_VERSION && PVA_RPC_API_VERSION == 435
epics::pvAccess::RPCClient::shared_pointer rpcClient = epics::pvAccess::RPCClient::create(channelName, pvRequest);
if (!rpcClient->connect(timeout)) {
throw ChannelTimeout("Channel %s timed out.", channelName.c_str());
}
return rpcClient;
#endif // if defined PVA_RPC_API_VERSION && PVA_RPC_API_VERSION == 435
#if defined PVA_RPC_API_VERSION && PVA_RPC_API_VERSION == 440
return epics::pvAccess::RPCClient::create(channelName);
#endif // if defined PVA_RPC_API_VERSION && PVA_RPC_API_VERSION == 440
}
