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/*
* This file is part of rasdaman community.
*
* Rasdaman community 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 3 of the License, or
* (at your option) any later version.
*
* Rasdaman community 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 rasdaman community. If not, see <http://www.gnu.org/licenses/>.
*
* Copyright 2003, 2004, 2005, 2006, 2007, 2008, 2009 Peter Baumann /
rasdaman GmbH.
*
* For more information please see <http://www.rasdaman.org>
* or contact Peter Baumann via <baumann@rasdaman.com>.
/
/**
* SOURCE: rasmgr_master.hh
*
* MODULE: rasmgr
* CLASS: MasterComm
*
* PURPOSE:
* Main loop of master rasmgr
*
* COMMENTS:
* None
*
*/
#ifndef RASMGR_MASTER_HH
#define RASMGR_MASTER_HH
#include "rasmgr_comm_nb.hh"
#include <deque>
#include<string>
/**
* \ingroup Rasmgrs
*/
class ClientID
{
public:
ClientID();
void init(const char*);
bool operator==(const ClientID&);
bool operator!=(const ClientID&);
std::string getID() const;
bool isValid() const;
private:
std::string idstring;
bool valid;
friend std::ostream& operator<<(std::ostream&, const ClientID&);
};
/**
* \ingroup Rasmgrs
*/
class ClientQueue
{
public:
ClientQueue();
~ClientQueue();
void put(ClientID&, const char *dbName, char serverType, int errorCode);
// the answer is 0 or the errorcode
int canBeServed(ClientID&, const char *dbName, char serverType, bool fake);
private:
struct ClientEntry
{
bool activ;
ClientID clientID;
std::string dbName;
char serverType;
int errorCode;
time_t lastAction;
time_t timeLimit;
bool wasfake;
ClientEntry();
ClientEntry(ClientID &client, const char *dbName, char serverType, int errorCode);
bool shouldWeCleanup(bool fake);
void updateTime();
bool isTimeout();
};
std::deque<ClientEntry> clients;
};
/**
* \ingroup Rasmgrs
*/
class MasterComm:public NbServerComm
{
public:
MasterComm();
~MasterComm();
void Run();
void commitChanges();
void commitAuthFile();
private:
bool isMessage(const char *messageStart);
int getFreeServer(bool fake);
const char* convertAnswerCode(int code);
// int getFakeFreeServer();
int answerAccessDenied();
int answerAccessDeniedCode();
void doCommit();
bool commit;
bool commitAuthOnly;
void processJob( NbJob ¤tJob );
int processRequest( NbJob ¤tJob );
bool fillInBuffer(const char*);
char *header;
char *body;
char inBuffer[MAXMSG];
char outBuffer[MAXMSGOUTBUFF];
bool allowMultipleWriteTransactions;
ClientQueue clientQueue;
};
extern MasterComm masterCommunicator;
#endif
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