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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_srv.hh
*
* MODULE: rasmgr
* CLASS: RasServer, RasServerManager
*
* COMMENTS:
* None
*
*/
#ifndef RASMGR_SRV_HH
#define RASMGR_SRV_HH
#include "rasmgr.hh"
#include "rasmgr_config.hh"
#include "rasmgr_host.hh"
#include "rasmgr_dbm.hh"
//#define RASEXECUTABLE "rst"
#define RASEXECUTABLE BINDIR"rasserver"
#define MAXREGULARCOUNTER 3
/// return codes
const unsigned int RASSERVER_OK = 0;
const unsigned int RASSERVER_NODATABASEHOST = -1;
const unsigned int RASSERVER_CANNOTSTARTSRV = -2;
const unsigned int RASSERVER_NOREMOTERASMGR = -3;
const unsigned int RASSERVER_INCOMPLETESEND = -4;
const unsigned int RASSERVER_SRVNOTUP = -5;
const unsigned int RASSERVER_CMDLINEOFLO = -6;
/**
* \ingroup Rasmgrs
*/
class RasServer
{
public:
RasServer();
~RasServer();
void init(const char *srvName,const char* hostName,char serverType,long listenPort);
const char *getName();
const char *getHostName();
const char *getHostNetwName();
long getPort();
char getType();
void changeName(const char *newName);
void changeType(const char newType); // char not char*!!
void changePort(long newPort);
void changeExtraParam(const char *extraParam);
void changeCountDown(int);
void changeAutoRestart(bool);
const char *getExtraParams();
int getCountDown();
bool connectToDBHost(const char *dbHostName);//,const char *connString);
bool disconnectFromDBHost();
const char *getDBHostName();
static char* getDescriptionHeader(char *destBuffer);
char* getDescription(char *destBuffer);
static char* getDescriptionExecHeader(char *destBuffer);
char* getDescriptionExec(char *destBuffer);
static char* getDescriptionPortHeader(char *destBuffer);
char* getDescriptionPort(char *destBuffer);
int startServer();
int startServerInDebugger(char *command); // test modus only
int downServer(bool forced);
int killServer();
void changeStatus(int,long);
bool isUp();
bool isStarting();
bool isValid();
bool isAvailable();
bool forceAvailable();
bool isConnectedToDBHost();
bool isAutoRestart();
void setNotAvailable();
void startWriteTransaction(Database& dataBase);
void startReadTransaction(Database& dataBase);
void changeExecutableName(const char*);
const char* getExecutableName();
private:
int downNow();
void clearPendingTransaction();
char serverName[ARG_MAX];
ServerHost *ptrServerHost;
bool isinternal;
char serverType; //'r','h'
long listenPort; // 'r' ->rpc prognum; 'h' ->TCP/IP port
char extraParam[ARG_MAX];
char executableName[ARG_MAX];
DatabaseHost *ptrDatabaseHost;
//char connStr[100];
bool downReq;
bool available;
bool isup;
bool isstarting;
bool activityExpected; // to avoid the possibility of starting rasserver by hand
int regularSignalCounter; // how namy times should a nonavailable server signal before we put it available again
unsigned long activityCounter; // counts "activities" per server, i.e., actions that are noticeable by the server
int initialCountDown;
int currentCountDown;
int crashCount;
bool autorestart;
bool writeTransaction;
bool readTransaction;
Database *connDatabase;
bool valid;
};
/**
* \ingroup Rasmgrs
*/
class RasServerManager
{
public:
RasServerManager();
~RasServerManager();
bool insertNewServer(const char *srvName,const char* hostName,char serverType,long listenPort);
bool removeServer(const char *srvName);
int countServers();
RasServer& operator[](int);
RasServer& operator[](const char*srvName);
RasServer& last();
int changeServerStatus(char *reqMessage);
void disconnectAllServersFromDBH(const char *dbhName);
int countUpServers();
void printStatus();
bool reset(); // test modus only
bool acceptChangeName(const char *oldName,const char *newName);
private:
bool testUniqueness(const char* srvName);
list<RasServer> srvList;
RasServer protElem;
};
extern RasServerManager rasManager;
#endif
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