diff options
| author | Vadim Dashevskiy <watcherhd@gmail.com> | 2012-05-15 10:38:20 +0000 |
|---|---|---|
| committer | Vadim Dashevskiy <watcherhd@gmail.com> | 2012-05-15 10:38:20 +0000 |
| commit | 48540940b6c28bb4378abfeb500ec45a625b37b6 (patch) | |
| tree | 2ef294c0763e802f91d868bdef4229b6868527de /plugins/Dbx_tree/DataBase.h | |
| parent | 5c350913f011e119127baeb32a6aedeb4f0d33bc (diff) | |
initial commit
git-svn-id: http://svn.miranda-ng.org/main/trunk@2 1316c22d-e87f-b044-9b9b-93d7a3e3ba9c
Diffstat (limited to 'plugins/Dbx_tree/DataBase.h')
| -rw-r--r-- | plugins/Dbx_tree/DataBase.h | 157 |
1 files changed, 157 insertions, 0 deletions
diff --git a/plugins/Dbx_tree/DataBase.h b/plugins/Dbx_tree/DataBase.h new file mode 100644 index 0000000000..2577249572 --- /dev/null +++ b/plugins/Dbx_tree/DataBase.h @@ -0,0 +1,157 @@ +/*
+
+dbx_tree: tree database driver for Miranda IM
+
+Copyright 2007-2010 Michael "Protogenes" Kunz,
+
+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.
+
+*/
+
+#pragma once
+
+#ifndef _MSC_VER
+#include <stdint.h>
+#else
+#include "stdint.h"
+#endif
+#include "MREWSync.h"
+
+#include "Events.h"
+#include "Settings.h"
+#include "Entities.h"
+
+#include "FileAccess.h"
+#include "MappedMemory.h"
+#include "DirectAccess.h"
+#include "Blockmanager.h"
+
+#include "sigslot.h"
+
+#include "EncryptionManager.h"
+
+typedef enum TDBFileType {
+ DBFileSetting = 0,
+ DBFilePrivate = 1,
+ DBFileMax = 2
+} TDBFileType;
+
+static const uint8_t cFileSignature[DBFileMax][20] = {"Miranda IM Settings", "Miranda IM DataTree"};
+static const uint32_t cDBVersion = 0x00000001;
+
+static const uint32_t cHeaderBlockSignature = 0x7265491E;
+
+#pragma pack(push, 1) // push current alignment to stack, set alignment to 1 byte boundary
+
+typedef struct TSettingsHeader {
+ uint8_t Signature[20]; /// signature must be cSettingsHeader
+ uint32_t Version; /// internal DB version cDataBaseVersion
+ uint32_t Obscure;
+ TFileEncryption FileEncryption; /// Encryption Method
+ uint32_t FileStructureBlock; /// Offset of CBlockManager master block
+ uint32_t FileSize; /// Offset to the last used byte + 1
+ uint32_t Settings; /// Offset to the SettingsBTree RootNode
+ uint8_t Reserved[256 - sizeof(TFileEncryption) - 20 - 5*sizeof(uint32_t)]; /// reserved storage
+} TSettingsHeader;
+
+typedef struct TPrivateHeader {
+ uint8_t Signature[20]; /// signature must be CDataHeader
+ uint32_t Version; /// internal DB version cDataBaseVersion
+ uint32_t Obscure;
+ TFileEncryption FileEncryption; /// Encryption Method
+ uint32_t FileStructureBlock; /// Offset of CBlockManager master block
+ uint32_t FileSize; /// Offset to the last used byte + 1
+ uint32_t RootEntity; /// Offset to the Root CList Entity
+ uint32_t Entities; /// Offset to the EntityBTree RootNode
+ uint32_t Virtuals; /// Offset to the VirtualsBTree RootNode
+ uint8_t Reserved[256 - sizeof(TFileEncryption) - 20 - 7*sizeof(uint32_t)]; /// reserved storage
+} TPrivateHeader;
+
+
+typedef union TGenericFileHeader {
+ struct {
+ uint8_t Signature[20]; /// signature must be cSettingsHeader
+ uint32_t Version; /// internal DB version cDataBaseVersion
+ uint32_t Obscure;
+ TFileEncryption FileEncryption; /// Encryption Method
+ uint32_t FileStructureBlock; /// Offset of CBlockManager master block
+ uint32_t FileSize; /// Offset to the last used byte + 1
+ uint8_t Reserved[256 - sizeof(TFileEncryption) - 20 - 4*sizeof(uint32_t)]; /// reserved storage
+ } Gen;
+ TSettingsHeader Set;
+ TPrivateHeader Pri;
+} TGenericFileHeader;
+
+#pragma pack(pop)
+
+
+class CDataBase : public sigslot::has_slots<>
+{
+private:
+ TCHAR* m_FileName[DBFileMax];
+ bool m_Opened;
+
+ CBlockManager *m_BlockManager[DBFileMax];
+ CFileAccess *m_FileAccess[DBFileMax];
+ TGenericFileHeader * m_Header[DBFileMax];
+ CEncryptionManager *m_EncryptionManager[DBFileMax];
+
+ uint32_t m_HeaderBlock[DBFileMax];
+
+ void onSettingsRootChanged(CSettings* Settings, CSettingsTree::TNodeRef NewRoot);
+ void onVirtualsRootChanged(void* Virtuals, CVirtuals::TNodeRef NewRoot);
+ void onEntitiesRootChanged(void* Entities, CEntities::TNodeRef NewRoot);
+ void onFileSizeChanged(CFileAccess * File, uint32_t Size);
+
+ bool PrivateFileExists();
+ bool CreateNewFile(TDBFileType File);
+
+ int CheckFile(TDBFileType Index);
+ int LoadFile(TDBFileType Index);
+protected:
+ CEntities *m_Entities;
+ CSettings *m_Settings;
+ CEvents *m_Events;
+
+ void ReWriteHeader(TDBFileType Index);
+
+public:
+ CDataBase(const char* FileName);
+ virtual ~CDataBase();
+
+ int CreateDB();
+ int CheckDB();
+ int OpenDB();
+
+ CEntities & getEntities()
+ {
+ return *m_Entities;
+ }
+ CSettings & getSettings()
+ {
+ return *m_Settings;
+ }
+ CEvents & getEvents()
+ {
+ return *m_Events;
+ }
+
+ int getProfileName(int BufferSize, char * Buffer);
+ int getProfilePath(int BufferSize, char * Buffer);
+
+};
+
+
+extern CDataBase *gDataBase;
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