epics::pvAccess::ServerDestroyChannelHandler Class Reference

#include "responseHandlers.h"

Inheritance diagram for epics::pvAccess::ServerDestroyChannelHandler:

Collaboration diagram for epics::pvAccess::ServerDestroyChannelHandler:

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

Destroy channel request handler.

Definition at line 237 of file responseHandlers.h.

Constructor & Destructor Documentation

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

inline

Definition at line 240 of file responseHandlers.h.

                                                                                 :
        AbstractServerResponseHandler(context, "Destroy channel request") {
    }

virtual epics::pvAccess::ServerDestroyChannelHandler::~ServerDestroyChannelHandler ( )

inlinevirtual

Definition at line 243 of file responseHandlers.h.

{}

Member Function Documentation

void epics::pvAccess::ServerDestroyChannelHandler::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 968 of file responseHandlers.cpp.

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

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


    transport->ensureData(8);
    const pvAccessID sid = payloadBuffer->getInt();
    const pvAccessID cid = payloadBuffer->getInt();

    // get channel by SID
    ServerChannel::shared_pointer channel = casTransport->getChannel(sid);
    if (channel.get() == NULL)
    {
        if (!transport->isClosed())
        {
            char host[100];
            sockAddrToDottedIP(&responseFrom->sa,host,100);
            LOG(logLevelDebug, "Trying to destroy a channel that no longer exists (SID: %d, CID %d, client: %s).", sid, cid, host);
        }
        return;
    }

    // destroy
    channel->destroy();

    // .. and unregister
    casTransport->unregisterChannel(sid);

    // send response back
    TransportSender::shared_pointer sr(new ServerDestroyChannelHandlerTransportSender(cid, sid));
    transport->enqueueSendRequest(sr);
}

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

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