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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 */
//****************************************************************************
//
// AUTHOR
// Magnus Svensson
//
// NAME
// OSE_Transporter
//
// DESCRIPTION
// A OSE_Transporter instance is created when OSE-signal communication
// shall be used (user specified). It handles connect, disconnect,
// send and receive.
//
//
//
//***************************************************************************/
#ifndef OSE_Transporter_H
#define OSE_Transporter_H
#include "Transporter.hpp"
#include "ose.h"
class OSE_Transporter : public Transporter {
friend class OSE_Receiver;
friend class TransporterRegistry;
public:
// Initialize member variables
OSE_Transporter(int prioASignalSize,
int prioBSignalSize,
NodeId localNodeId,
const char * lHostName,
NodeId remoteNodeId,
NodeId serverNodeId,
const char * rHostName,
int byteorder,
bool compression,
bool checksum,
bool signalId,
Uint32 reportFreq = 4096);
// Disconnect, delete send buffers and receive buffer
~OSE_Transporter();
/**
* Allocate buffers for sending and receiving
*/
bool initTransporter();
/**
* Connect
*/
virtual void doConnect();
/**
* Disconnect
*/
virtual void doDisconnect();
Uint32 * getWritePtr(Uint32 lenBytes, Uint32 prio);
void updateWritePtr(Uint32 lenBytes, Uint32 prio);
/**
* Retrieves the contents of the send buffers, copies it into
* an OSE signal and sends it. Until the send buffers are empty
*/
void doSend();
bool hasDataToSend() const {
return prioBSignal->dataSignal.length > 0;
}
protected:
/**
* Not implemented
* OSE uses async connect/disconnect
*/
virtual bool connectImpl(Uint32 timeOut){
return false;
}
/**
* Not implemented
* OSE uses async connect/disconnect
*/
virtual void disconnectImpl(){
}
private:
const bool isServer;
int maxPrioBDataSize;
/**
* Remote node name
* On same machine: ndb_node1
* On remote machine: rhost/ndb_node1
**/
PROCESS remoteNodePid;
OSATTREF remoteNodeRef;
char remoteNodeName[256];
Uint32 signalIdCounter;
int prioBSignalSize;
Uint32 * prioBInsertPtr;
union SIGNAL * prioBSignal;
struct NdbTransporterData * allocPrioASignal(Uint32 lenBytes) const;
/**
* Statistics
*/
Uint32 reportFreq;
Uint32 receiveCount;
Uint64 receiveSize;
Uint32 sendCount;
Uint64 sendSize;
void initSignals();
/**
* OSE Receiver callbacks
*/
void huntReceived(struct NdbTransporterHunt * sig);
bool connectReq(struct NdbTransporterConnectReq * sig);
bool connectRef(struct NdbTransporterConnectRef * sig);
bool connectConf(struct NdbTransporterConnectConf * sig);
bool disconnectOrd(struct NdbTransporterDisconnectOrd * sig);
enum OSETransporterState {
DISCONNECTED = 0,
WAITING_FOR_HUNT = 1,
WAITING_FOR_CONNECT_REQ = 2,
WAITING_FOR_CONNECT_CONF = 3,
CONNECTED = 4
} state;
};
// Define of OSE_Transporter_H
#endif
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