epics::pvAccess::ServerCancelRequestHandler Class Reference

#include "responseHandlers.h"

Inheritance diagram for epics::pvAccess::ServerCancelRequestHandler:

Collaboration diagram for epics::pvAccess::ServerCancelRequestHandler:

Public Member Functions
	ServerCancelRequestHandler (ServerContextImpl::shared_pointer const &context)
virtual	~ServerCancelRequestHandler ()
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

Cancel request handler.

Definition at line 608 of file responseHandlers.h.

Constructor & Destructor Documentation

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

inline

Definition at line 611 of file responseHandlers.h.

                                                                                :
        AbstractServerResponseHandler(context, "Cancel request") {
    }

virtual epics::pvAccess::ServerCancelRequestHandler::~ServerCancelRequestHandler ( )

inlinevirtual

Definition at line 614 of file responseHandlers.h.

{}

Member Function Documentation

void epics::pvAccess::ServerCancelRequestHandler::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 2435 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)
    {
        failureResponse(transport, ioid, BaseChannelRequester::badCIDStatus);
        return;
    }

    BaseChannelRequester::shared_pointer request(channel->getRequest(ioid));
    if (!request)
    {
        failureResponse(transport, ioid, BaseChannelRequester::badIOIDStatus);
        return;
    }
    //atomic::add(request->bytesRX, payloadSize);

    ChannelRequest::shared_pointer cr = dynamic_pointer_cast<ChannelRequest>(request->getOperation());
    if (!cr)
    {
        failureResponse(transport, ioid, BaseChannelRequester::notAChannelRequestStatus);
        return;
    }

    cr->cancel();
}

---

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

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