Drizzled Public API Documentation

systab_backup_ms.h

00001 /* Copyright (C) 2009 PrimeBase Technologies GmbH, Germany
00002  *
00003  * PrimeBase Media Stream for MySQL
00004  *
00005  * This program is free software; you can redistribute it and/or modify
00006  * it under the terms of the GNU General Public License as published by
00007  * the Free Software Foundation; either version 2 of the License, or
00008  * (at your option) any later version.
00009  *
00010  * This program is distributed in the hope that it will be useful,
00011  * but WITHOUT ANY WARRANTY; without even the implied warranty of
00012  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00013  * GNU General Public License for more details.
00014  *
00015  * You should have received a copy of the GNU General Public License
00016  * along with this program; if not, write to the Free Software
00017  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
00018  *
00019  * Barry Leslie
00020  *
00021  * 2009-10-27
00022  *
00023  * System backup info table for repository backups.
00024  *
00025  */
00026 
00027 #pragma once
00028 #ifndef __SYSTAB_BACKUP_H__
00029 #define __SYSTAB_BACKUP_H__
00030 
00031 #include "cslib/CSMutex.h"
00032 
00033 #include "defs_ms.h"
00034 #include "system_table_ms.h"
00035 #include "discover_ms.h"
00036 
00037 class MSBackupInfo;
00038 
00039 class MSBackupTable : public MSOpenSystemTable {
00040 public:
00041   MSBackupTable(MSSystemTableShare *share, TABLE *table);
00042   ~MSBackupTable();
00043 
00044   void use();
00045   void unuse();
00046   void seqScanInit();
00047   bool seqScanNext(char *buf);
00048   int getRefLen() { return sizeof(iBackupIndex);}
00049   void seqScanPos(unsigned char *pos);
00050   void seqScanRead(unsigned char *pos, char *buf);
00051 
00052   void updateRow(char *old_data, char *new_data);
00053   void insertRow(char *data);
00054   void deleteRow(char *data);
00055 
00056   static void startUp();
00057   static void shutDown();
00058 
00059   static void transferTable(MSDatabase *from_db, MSDatabase *to_db);
00060   static CSStringBuffer *dumpTable(MSDatabase *db);
00061   static void restoreTable(MSDatabase *db, const char *data, size_t size, bool reload = true);
00062   static void removeTable(CSString *db_path);
00063   
00064   static void saveTable(MSDatabase *db);
00065   static void loadTable(MSDatabase *db);
00066   
00067   static const uint8_t tableID = 0X03; // A unique id for the MSBackupTable dump data
00068   static const uint16_t tableVersion = 0X0001; // The current version of the table
00069 
00070 private:
00071   uint32_t      iBackupIndex;
00072 };
00073 
00074 #define BACKUP_TABLE_NAME "pbms_backup"
00075 extern DT_FIELD_INFO pbms_backup_info[];
00076 extern DT_KEY_INFO pbms_backup_keys[];
00077 
00078 #endif // __SYSTAB_BACKUP_H__