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ChannelRequest::cancel() impl.

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This commit is contained in:
Matej Sekoranja
2014-04-07 12:22:30 +02:00
parent d2fb05ddd8
commit 4bbab422fe
11 changed files with 216 additions and 20 deletions
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pvAccessApp/server/responseHandlers.cpp
+50 -4
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@@ -50,7 +50,7 @@ ServerResponseHandler::ServerResponseHandler(ServerContextImpl::shared_pointer c
MB_INIT;
ResponseHandler::shared_pointer badResponse(new ServerBadResponse(context));
m_handlerTable.resize(CMD_RPC+1);
m_handlerTable.resize(CMD_CANCEL_REQUEST+1);
m_handlerTable[CMD_BEACON].reset(new ServerNoopResponse(context, "Beacon")); /* 0 */
m_handlerTable[CMD_CONNECTION_VALIDATION].reset(new ServerConnectionValidationHandler(context)); /* 1 */
@@ -68,12 +68,13 @@ ServerResponseHandler::ServerResponseHandler(ServerContextImpl::shared_pointer c
m_handlerTable[CMD_PUT_GET].reset(new ServerPutGetHandler(context)); /* 12 - put-get response */
m_handlerTable[CMD_MONITOR].reset(new ServerMonitorHandler(context)); /* 13 - monitor response */
m_handlerTable[CMD_ARRAY].reset(new ServerArrayHandler(context)); /* 14 - array response */
m_handlerTable[CMD_CANCEL_REQUEST].reset(new ServerCancelRequestHandler(context)); /* 15 - cancel request */
m_handlerTable[CMD_DESTROY_REQUEST].reset(new ServerDestroyRequestHandler(context)); /* 15 - destroy request */
m_handlerTable[CMD_PROCESS].reset(new ServerProcessHandler(context)); /* 16 - process response */
m_handlerTable[CMD_GET_FIELD].reset(new ServerGetFieldHandler(context)); /* 17 - get field response */
m_handlerTable[CMD_MESSAGE] = badResponse; /* 18 - message to Requester */
m_handlerTable[CMD_MULTIPLE_DATA] = badResponse; /* 19 - grouped monitors */
m_handlerTable[CMD_RPC].reset(new ServerRPCHandler(context)); /* 20 - RPC response */
m_handlerTable[CMD_CANCEL_REQUEST].reset(new ServerCancelRequestHandler(context)); /* 21 - cancel request */
}
void ServerResponseHandler::handleResponse(osiSockAddr* responseFrom,
@@ -1659,7 +1660,7 @@ void ServerChannelArrayRequesterImpl::send(ByteBuffer* buffer, TransportSendCont
}
/****************************************************************************************/
void ServerCancelRequestHandler::handleResponse(osiSockAddr* responseFrom,
void ServerDestroyRequestHandler::handleResponse(osiSockAddr* responseFrom,
Transport::shared_pointer const & transport, int8 version, int8 command,
size_t payloadSize, ByteBuffer* payloadBuffer) {
AbstractServerResponseHandler::handleResponse(responseFrom,
@@ -1693,11 +1694,56 @@ void ServerCancelRequestHandler::handleResponse(osiSockAddr* responseFrom,
channel->unregisterRequest(ioid);
}
void ServerCancelRequestHandler::failureResponse(Transport::shared_pointer const & transport, pvAccessID ioid, const Status& errorStatus)
void ServerDestroyRequestHandler::failureResponse(Transport::shared_pointer const & transport, pvAccessID ioid, const Status& errorStatus)
{
BaseChannelRequester::message(transport, ioid, errorStatus.getMessage(), warningMessage);
}
/****************************************************************************************/
void ServerCancelRequestHandler::handleResponse(osiSockAddr* responseFrom,
Transport::shared_pointer const & transport, int8 version, int8 command,
size_t payloadSize, ByteBuffer* payloadBuffer) {
AbstractServerResponseHandler::handleResponse(responseFrom,
transport, version, command, payloadSize, payloadBuffer);
// NOTE: we do not explicitly check if transport is OK
ChannelHostingTransport::shared_pointer casTransport = dynamic_pointer_cast<ChannelHostingTransport>(transport);
transport->ensureData(2*sizeof(int32)/sizeof(int8));
const pvAccessID sid = payloadBuffer->getInt();
const pvAccessID ioid = payloadBuffer->getInt();
ServerChannelImpl::shared_pointer channel = static_pointer_cast<ServerChannelImpl>(casTransport->getChannel(sid));
if (channel == NULL)
{
failureResponse(transport, ioid, BaseChannelRequester::badCIDStatus);
return;
}
Destroyable::shared_pointer request = channel->getRequest(ioid);
if (request == NULL)
{
failureResponse(transport, ioid, BaseChannelRequester::badIOIDStatus);
return;
}
ChannelRequest::shared_pointer cr = dynamic_pointer_cast<ChannelRequest>(request);
if (cr == NULL)
{
failureResponse(transport, ioid, BaseChannelRequester::notAChannelRequestStatus);
return;
}
// cancel
cr->cancel();
}
void ServerCancelRequestHandler::failureResponse(Transport::shared_pointer const & transport, pvAccessID ioid, const Status& errorStatus)
{
BaseChannelRequester::message(transport, ioid, errorStatus.getMessage(), warningMessage);
}
/****************************************************************************************/
void ServerProcessHandler::handleResponse(osiSockAddr* responseFrom,
Transport::shared_pointer const & transport, int8 version, int8 command,