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getHandler

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This commit is contained in:
Gasper Jansa
2011-02-22 22:55:47 +01:00
parent 49ebe7787c
commit 1dfdaa4ec5
3 changed files with 146 additions and 55 deletions
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178
pvAccessApp/server/responseHandlers.cpp
View File

@@ -55,7 +55,7 @@ namespace epics {
_handlerTable[7] = new CreateChannelHandler(context);
_handlerTable[8] = new DestroyChannelHandler(context);
_handlerTable[9] = _badResponse;
//_handlerTable[10] = new GetHandler(context);
_handlerTable[10] = new GetHandler(context);
_handlerTable[11] = _badResponse;
_handlerTable[12] = _badResponse;
_handlerTable[13] = _badResponse;
@@ -296,6 +296,16 @@ namespace epics {
_context(context)
{}
ChannelFindRequesterImplObjectPool::~ChannelFindRequesterImplObjectPool()
{
for(std::vector<ChannelFindRequesterImpl*>::iterator iter = _elements.begin();
iter != _elements.end(); iter++)
{
delete *iter;
}
_elements.erase(_elements.begin(), _elements.end());
}
ChannelFindRequesterImpl* ChannelFindRequesterImplObjectPool::get()
{
Lock guard(_mutex);
@@ -320,6 +330,49 @@ namespace epics {
}
/****************************************************************************************/
void CreateChannelHandler::handleResponse(osiSockAddr* responseFrom,
Transport* transport, int8 version, int8 command,
int payloadSize, epics::pvData::ByteBuffer* payloadBuffer) {
AbstractServerResponseHandler::handleResponse(responseFrom,
transport, version, command, payloadSize, payloadBuffer);
// TODO for not only one request at the time is supported, i.e. dataCount == 1
transport->ensureData((sizeof(int32)+sizeof(int16))/sizeof(int8));
const int16 count = payloadBuffer->getShort();
if (count != 1)
{
THROW_BASE_EXCEPTION("only 1 supported for now");
}
const pvAccessID cid = payloadBuffer->getInt();
String channelName = SerializeHelper::deserializeString(payloadBuffer, transport);
if (channelName.size() == 0)
{
char host[100];
sockAddrToA(&transport->getRemoteAddress()->sa,host,100);
errlogSevPrintf(errlogMinor,"Zero length channel name, disconnecting client: %s", host);
disconnect(transport);
return;
}
else if (channelName.size() > UNREASONABLE_CHANNEL_NAME_LENGTH)
{
char host[100];
sockAddrToA(&transport->getRemoteAddress()->sa,host,100);
errlogSevPrintf(errlogMinor,"Unreasonable channel name length, disconnecting client: %s", host);
disconnect(transport);
return;
}
ChannelRequester* cr = new ChannelRequesterImpl(transport, channelName, cid);
_provider->createChannel(channelName, cr, transport->getPriority());
}
void CreateChannelHandler::disconnect(Transport* transport)
{
transport->close(true);
}
ChannelRequesterImpl::ChannelRequesterImpl(Transport* transport, const String channelName, const pvAccessID cid) :
_transport(transport),
@@ -351,9 +404,8 @@ namespace epics {
return name.str();
}
void ChannelRequesterImpl::message(const String message, const epics::pvData::MessageType messageType)
void ChannelRequesterImpl::message(const String message, const MessageType messageType)
{
// TODO review
errlogSevPrintf(errlogMinor, "[%s] %s", messageTypeName[messageType].c_str(), message.c_str());
}
@@ -417,9 +469,7 @@ namespace epics {
catch (std::exception& e)
{
errlogSevPrintf(errlogMinor, "Exception caught when creating channel: %s", _channelName.c_str());
//TODO implement BaseChannelRequester
//createChannelFailedResponse(buffer, control,
// BaseChannelRequester.statusCreate.createStatus(StatusType.FATAL, "failed to create channel", e));
createChannelFailedResponse(buffer, control, Status(Status::STATUSTYPE_FATAL, "failed to create channel", e.what()));
if (serverChannel != NULL)
{
serverChannel->destroy();
@@ -428,9 +478,7 @@ namespace epics {
catch (...)
{
errlogSevPrintf(errlogMinor, "Exception caught when creating channel: %s", _channelName.c_str());
//TODO implement BaseChannelRequester
//createChannelFailedResponse(buffer, control,
// BaseChannelRequester.statusCreate.createStatus(StatusType.FATAL, "failed to create channel", e));
createChannelFailedResponse(buffer, control, Status(Status::STATUSTYPE_FATAL, "failed to create channel"));
if (serverChannel != NULL)
{
serverChannel->destroy();
@@ -439,6 +487,16 @@ namespace epics {
}
}
void ChannelRequesterImpl::release()
{
delete this;
}
void ChannelRequesterImpl::acquire()
{
//noop
}
void ChannelRequesterImpl::createChannelFailedResponse(ByteBuffer* buffer, TransportSendControl* control, const Status& status)
{
control->startMessage((int8)7, 2*sizeof(int32)/sizeof(int8));
@@ -515,30 +573,30 @@ namespace epics {
if (init)
{
// pvRequest
//PVStructurePtr pvRequest = transport->getIntrospectionRegistry()->deserializePVRequest(payloadBuffer, transport);
PVStructurePtr pvRequest = transport->getIntrospectionRegistry()->deserializePVRequest(payloadBuffer, transport);
// create...
// new ChannelGetRequesterImpl(_context, channel, ioid, transport, pvRequest);
new ChannelGetRequesterImpl(_context, channel, ioid, transport, pvRequest);
}
/* else
else
{
final boolean lastRequest = QoS.DESTROY.isSet(qosCode);
const boolean lastRequest = (QOS_DESTROY & qosCode) != 0;
ChannelGetRequesterImpl request = (ChannelGetRequesterImpl)channel.getRequest(ioid);
if (request == null) {
BaseChannelRequester.sendFailureMessage((byte)10, transport, ioid, qosCode, BaseChannelRequester.badIOIDStatus);
ChannelGetRequesterImpl* request = static_cast<ChannelGetRequesterImpl*>(channel->getRequest(ioid));
if (request == NULL)
{
BaseChannelRequester::sendFailureMessage((int8)10, transport, ioid, qosCode, BaseChannelRequester::badIOIDStatus);
return;
}
if (!request.startRequest(qosCode)) {
BaseChannelRequester.sendFailureMessage((byte)10, transport, ioid, qosCode, BaseChannelRequester.otherRequestPendingStatus);
if (!request->startRequest(qosCode))
{
BaseChannelRequester::sendFailureMessage((int8)10, transport, ioid, qosCode, BaseChannelRequester::otherRequestPendingStatus);
return;
}
request.getChannelGet().get(lastRequest);
}
*/
request->getChannelGet()->get(lastRequest);
}
}
ChannelGetRequesterImpl::ChannelGetRequesterImpl(ServerContextImpl* context, ServerChannelImpl* channel, const pvAccessID ioid, Transport* transport,
@@ -593,6 +651,13 @@ namespace epics {
return _channelGet;
}
String ChannelGetRequesterImpl::getRequesterName()
{
stringstream name;
name << typeid(*_transport).name();
return name.str();
}
void ChannelGetRequesterImpl::lock()
{
//TODO
@@ -603,41 +668,56 @@ namespace epics {
//TODO
}
void ChannelGetRequesterImpl::release()
{
delete this;
}
void ChannelGetRequesterImpl::acquire()
{
//noop
}
void ChannelGetRequesterImpl::message(const String message, MessageType messageType)
{
errlogSevPrintf(errlogMinor, "[%s] %s", messageTypeName[messageType].c_str(), message.c_str());
}
void ChannelGetRequesterImpl::send(ByteBuffer* buffer, TransportSendControl* control)
{
const int32 request = getPendingRequest();
control->startMessage((int8)10, sizeof(int32)/sizeof(int8) + 1);
buffer->putInt(_ioid);
buffer->put((int8)request);
IntrospectionRegistry* introspectionRegistry = _transport->getIntrospectionRegistry();
{
Lock guard(_mutex);
introspectionRegistry->serializeStatus(buffer, control, _status);
}
control->startMessage((int8)10, sizeof(int32)/sizeof(int8) + 1);
buffer->putInt(_ioid);
buffer->put((int8)request);
IntrospectionRegistry* introspectionRegistry = _transport->getIntrospectionRegistry();
{
Lock guard(_mutex);
introspectionRegistry->serializeStatus(buffer, control, _status);
}
if (_status.isSuccess())
{
if (request & QOS_INIT)
{
Lock guard(_mutex);
introspectionRegistry->serialize(_pvStructure != NULL ? _pvStructure->getField() : NULL, buffer, control);
if (_status.isSuccess())
{
if (request & QOS_INIT)
{
Lock guard(_mutex);
introspectionRegistry->serialize(_pvStructure != NULL ? _pvStructure->getField() : NULL, buffer, control);
}
else
{
_bitSet->serialize(buffer, control);
_pvStructure->serialize(buffer, control, _bitSet);
}
}
}
else
{
_bitSet->serialize(buffer, control);
_pvStructure->serialize(buffer, control, _bitSet);
}
}
stopRequest();
stopRequest();
// lastRequest
if (request & QOS_DESTROY)
{
destroy();
}
// lastRequest
if (request & QOS_DESTROY)
{
destroy();
}
}
}
}

19
pvAccessApp/server/responseHandlers.h
View File

@@ -160,7 +160,7 @@ namespace epics {
/****************************************************************************************/
/**
* Introspection search request handler.
* Search channel request handler.
*/
class ChannelFindRequesterImplObjectPool;
class SearchHandler : public AbstractServerResponseHandler
@@ -209,6 +209,7 @@ namespace epics {
{
public:
ChannelFindRequesterImplObjectPool(ServerContextImpl* context);
~ChannelFindRequesterImplObjectPool();
ChannelFindRequesterImpl* get();
void put(ChannelFindRequesterImpl* element);
@@ -229,15 +230,19 @@ namespace epics {
*/
CreateChannelHandler(ServerContextImpl* context) :
AbstractServerResponseHandler(context, "Create channel request") {
_provider = context->getChannelProvider();
}
//TODO where is implementation???
virtual void handleResponse(osiSockAddr* responseFrom,
Transport* transport, int8 version, int8 command,
int payloadSize, epics::pvData::ByteBuffer* payloadBuffer);
private:
/**
* Disconnect.
*/
void disconnect(Transport* transport);
ChannelProvider* _provider;
};
class ChannelRequesterImpl : public ChannelRequester, public TransportSender
@@ -251,6 +256,8 @@ namespace epics {
void lock();
void unlock();
void send(ByteBuffer* buffer, TransportSendControl* control);
void release();
void acquire();
private:
Transport* _transport;
@@ -304,7 +311,7 @@ namespace epics {
}
void release() {
delete this;
delete this;
}
void acquire() {
@@ -335,7 +342,7 @@ namespace epics {
int payloadSize, epics::pvData::ByteBuffer* payloadBuffer);
};
class ChannelGetRequesterImpl : private BaseChannelRequester, public ChannelGetRequester, public TransportSender
class ChannelGetRequesterImpl : public BaseChannelRequester, public ChannelGetRequester, public TransportSender
{
public:
ChannelGetRequesterImpl(ServerContextImpl* context, ServerChannelImpl* channel, const pvAccessID ioid, Transport* transport,
@@ -348,9 +355,13 @@ namespace epics {
* @return the channelGet
*/
ChannelGet* getChannelGet();
String getRequesterName();
void lock();
void unlock();
void release();
void acquire();
void send(ByteBuffer* buffer, TransportSendControl* control);
void message(const String message, const epics::pvData::MessageType messageType);
private:
ChannelGet* _channelGet;
epics::pvData::BitSet* _bitSet;

4
pvAccessApp/server/serverChannelImpl.h
View File

@@ -59,7 +59,7 @@ public:
* @param id request ID.
* @param request request to be registered.
*/
void registerRequest(pvAccessID id, Destroyable* request);
void registerRequest(pvAccessID id, epics::pvData::Destroyable* request);
/**
* Unregister request.
@@ -72,7 +72,7 @@ public:
* @param id request ID.
* @return request with given ID, <code>null</code> if there is no request with such ID.
*/
Destroyable* getRequest(pvAccessID id);
epics::pvData::Destroyable* getRequest(pvAccessID id);
/**
* Destroy server channel.