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/* Copyright (C) 2003 MySQL AB
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
#ifndef Transporter_H
#define Transporter_H
#include <TransporterCallback.hpp>
#include "TransporterDefinitions.hpp"
#include "Packer.hpp"
#include <NdbMutex.h>
#include <NdbThread.h>
class Transporter {
friend class TransporterRegistry;
public:
virtual bool initTransporter() = 0;
/**
* Destructor
*/
virtual ~Transporter();
/**
* None blocking
* Use isConnected() to check status
*/
virtual void doConnect();
/**
* Blocking
*/
virtual void doDisconnect();
virtual Uint32 * getWritePtr(Uint32 lenBytes, Uint32 prio) = 0;
virtual void updateWritePtr(Uint32 lenBytes, Uint32 prio) = 0;
/**
* Are we currently connected
*/
bool isConnected() const;
/**
* Remote Node Id
*/
NodeId getRemoteNodeId() const;
/**
* Set callback object
*/
void setCallbackObject(void * callback);
protected:
Transporter(NodeId lNodeId,
NodeId rNodeId,
int byteorder,
bool compression,
bool checksum,
bool signalId);
/**
* Blocking, for max timeOut milli seconds
* Returns true if connect succeded
*/
virtual bool connectImpl(Uint32 timeOut) = 0;
/**
* Blocking
*/
virtual void disconnectImpl() = 0;
const NodeId localNodeId;
const NodeId remoteNodeId;
unsigned createIndex;
int byteOrder;
bool compressionUsed;
bool checksumUsed;
bool signalIdUsed;
Packer m_packer;
private:
/**
* Thread and mutex for connect
*/
NdbThread* theThreadPtr;
friend void* runConnect(void * me);
protected:
/**
* Error reporting from connect thread(s)
*/
void reportThreadError(NodeId nodeId,
TransporterError errorCode);
Uint32 getErrorCount();
TransporterError getThreadError();
void resetThreadError();
TransporterError _threadError;
Uint32 _timeOutMillis;
Uint32 _errorCount;
protected:
NdbMutex* theMutexPtr;
bool _connected; // Are we connected
bool _connecting; // Connect thread is running
bool _disconnecting; // We are disconnecting
void * callbackObj;
};
inline
bool
Transporter::isConnected() const {
return _connected;
}
inline
NodeId
Transporter::getRemoteNodeId() const {
return remoteNodeId;
}
inline
void
Transporter::reportThreadError(NodeId nodeId, TransporterError errorCode)
{
#if 0
ndbout_c("Transporter::reportThreadError (NodeId: %d, Error code: %d)",
nodeId, errorCode);
#endif
_threadError = errorCode;
_errorCount++;
}
inline
TransporterError
Transporter::getThreadError(){
return _threadError;
}
inline
Uint32
Transporter::getErrorCount()
{
return _errorCount;
}
inline
void
Transporter::resetThreadError()
{
_threadError = TE_NO_ERROR;
}
inline
void
Transporter::setCallbackObject(void * callback) {
callbackObj = callback;
}
#endif // Define of Transporter_H
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