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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 APPNDB_HPP
#define APPNDB_HPP
#include "NdbApi.hpp"
#include <NdbMain.h>
#include <NdbOut.hpp>
#include <NdbSleep.h>
#include <NdbTick.h>
#include <NdbThread.h>
#include <Vector.hpp>
#include "TableInfoPs.hpp"
#include <rep/storage/GCIContainer.hpp>
#include <rep/storage/GCIBuffer.hpp>
#include <rep/state/RepState.hpp>
extern "C" {
void * runAppNDB_C(void *);
}
/**
* @class AppNDB
* @brief Connects to NDB and appliers log records into standby system
*/
class AppNDB {
public:
/***************************************************************************
* Constructor / Destructor / Init
***************************************************************************/
AppNDB(class GCIContainer * gciContainer, class RepState * repState);
~AppNDB();
void init(const char * connectString);
GrepError::Code
applyBuffer(Uint32 nodeGrp, Uint32 first, Uint32 force);
/**
* Takes a table id and drops it.
* @param tableId Name of table to be dropped
* @return Returns 1 = ok, -1 failed
*
* @todo Fix: 0 usually means ok...
*/
int dropTable(Uint32 tableId);
void startApplier();
void stopApplier(GrepError::Code err);
private:
/***************************************************************************
* Methods
***************************************************************************/
friend void* runAppNDB_C(void*);
void threadMainAppNDB(void);
/**
* Takes a log records and does the operation specified in the log record
* on NDB.
* @param - lr (LogRecord)
* @param - force true if GREP:SSCoord is in phase STARTING.
* Ignore "Execute" errors if true.
*/
int applyLogRecord(LogRecord * lr, bool force, Uint32 gci);
/**
* Applies a table based on a meta record and creates the table
* in NDB.
* @param - meta record
* @return - 0 on success, -1 if something went wrong
*/
int applyMetaRecord(MetaRecord * mr, Uint32 gci);
/**
* Takes a meta record and uses NdbDictionaryXXX::parseInfoTable
* and returns a table
* @param mr - MetaRecord
* @return - a table based on the meta record
*/
NdbDictionary::Table* prepareMetaRecord(MetaRecord * mr);
/**
* Prints out an NDB error message if a ndb operation went wrong.
* @param msg - text explaining the error
* @param err - NDB error type
*/
void reportNdbError(const char * msg, const NdbError & err);
/**
* Prints out a warning message. Used if support for something
* is not implemented.
* @param tableName - the name of the table this warning occured on
* @param message - warning message
*/
void reportWarning(const char * tableName, const char * message);
/**
* Prints out a warning message. Used if support for something
* is not implemented.
* @param tableName - the name of the table this warning occured on
* @param columnName - the name of the column this warning occured on
* @param message - warning message
*/
void reportWarning(const char * tableName, const char * columnName,
const char * message);
/***************************************************************************
* Variables
***************************************************************************/
GCIContainer * m_gciContainer;
RepState * m_repState;
Ndb* m_ndb;
NdbDictionary::Dictionary * m_dict;
NodeId m_ownNodeId;
bool m_started;
TableInfoPs * m_tableInfoPs;
NdbThread* m_applierThread;
NdbCondition * m_cond;
MutexVector<GCIBuffer*> m_gciBufferList;
};
#endif
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