epics::pvAccess::ServerGetFieldHandler Class Reference

#include "responseHandlers.h"

Inheritance diagram for epics::pvAccess::ServerGetFieldHandler:

Collaboration diagram for epics::pvAccess::ServerGetFieldHandler:

Public Member Functions
	ServerGetFieldHandler (ServerContextImpl::shared_pointer const &context)
virtual	~ServerGetFieldHandler ()
virtual void	handleResponse (osiSockAddr *responseFrom, Transport::shared_pointer const &transport, epics::pvData::int8 version, epics::pvData::int8 command, std::size_t payloadSize, epics::pvData::ByteBuffer *payloadBuffer) OVERRIDE FINAL
Public Member Functions inherited from epics::pvAccess::AbstractServerResponseHandler
	AbstractServerResponseHandler (ServerContextImpl::shared_pointer const &context, std::string description)
virtual	~AbstractServerResponseHandler ()
Public Member Functions inherited from epics::pvAccess::ResponseHandler
	POINTER_DEFINITIONS (ResponseHandler)
	ResponseHandler (Context *context, const std::string &description)
virtual	~ResponseHandler ()

Additional Inherited Members
Static Public Attributes inherited from epics::pvAccess::ResponseHandler
static size_t	num_instances
Protected Attributes inherited from epics::pvAccess::AbstractServerResponseHandler
ServerContextImpl::shared_pointer	_context
Protected Attributes inherited from epics::pvAccess::ResponseHandler
std::string	_description
epics::pvData::int32	_debugLevel

Detailed Description

Get field request handler.

Definition at line 680 of file responseHandlers.h.

Constructor & Destructor Documentation

epics::pvAccess::ServerGetFieldHandler::ServerGetFieldHandler ( ServerContextImpl::shared_pointer const &  context )

inline

Definition at line 683 of file responseHandlers.h.

                                                                           :
        AbstractServerResponseHandler(context, "Get field request") {
    }

virtual epics::pvAccess::ServerGetFieldHandler::~ServerGetFieldHandler ( )

inlinevirtual

Definition at line 686 of file responseHandlers.h.

{}

Member Function Documentation

void epics::pvAccess::ServerGetFieldHandler::handleResponse ( osiSockAddr *  responseFrom, Transport::shared_pointer const &  transport, epics::pvData::int8  version, epics::pvData::int8  command, std::size_t  payloadSize, epics::pvData::ByteBuffer *  payloadBuffer  )

virtual

Handle response.

Parameters

[in]	responseFrom	remote address of the responder, 0 if unknown.
[in]	transport	response source transport.
[in]	version	message version.
[in]	payloadSize	size of this message data available in the payloadBuffer.
[in]	payloadBuffer	message payload data. Note that this might not be the only message in the buffer. Code must not manipulate buffer.

Reimplemented from epics::pvAccess::ResponseHandler.

Definition at line 2638 of file responseHandlers.cpp.

                                                       {
    AbstractServerResponseHandler::handleResponse(responseFrom,
            transport, version, command, payloadSize, payloadBuffer);

    // NOTE: we do not explicitly check if transport is OK
    detail::BlockingServerTCPTransportCodec* casTransport(static_cast<detail::BlockingServerTCPTransportCodec*>(transport.get()));

    transport->ensureData(2*sizeof(int32)/sizeof(int8));
    const pvAccessID sid = payloadBuffer->getInt();
    const pvAccessID ioid = payloadBuffer->getInt();

    ServerChannel::shared_pointer channel = casTransport->getChannel(sid);
    if (!channel.get())
    {
        getFieldFailureResponse(transport, ioid, BaseChannelRequester::badCIDStatus);
        return;
    }

    string subField = SerializeHelper::deserializeString(payloadBuffer, transport.get());

    // issue request
    GetFieldRequester::shared_pointer req;
    {
        std::tr1::shared_ptr<ServerGetFieldRequesterImpl> tp(new ServerGetFieldRequesterImpl(_context, channel, ioid, transport));
        req = tp;
    }

    channel->installGetField(req);

    // TODO exception check
    channel->getChannel()->getField(req, subField);
}

---

The documentation for this class was generated from the following files:

• modules/pvAccess/src/server/pv/responseHandlers.h
• modules/pvAccess/src/server/responseHandlers.cpp