diff options
Diffstat (limited to 'plugins/!Deprecated/Dbx_tree/src/FileAccess.h')
| -rw-r--r-- | plugins/!Deprecated/Dbx_tree/src/FileAccess.h | 191 |
1 files changed, 0 insertions, 191 deletions
diff --git a/plugins/!Deprecated/Dbx_tree/src/FileAccess.h b/plugins/!Deprecated/Dbx_tree/src/FileAccess.h deleted file mode 100644 index f49643e2a3..0000000000 --- a/plugins/!Deprecated/Dbx_tree/src/FileAccess.h +++ /dev/null @@ -1,191 +0,0 @@ -/*
-
-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
-
-#include <windows.h>
-#include <time.h>
-#include "stdint.h"
-#include "sigslot.h"
-
-class CFileAccess
-{
-public:
- static const uint8_t cJournalSignature[20];
-
- CFileAccess(const TCHAR* FileName);
- virtual ~CFileAccess();
-
-
- uint32_t Read(void* Buf, uint32_t Source, uint32_t Size)
- {
- return _Read(Buf, Source, Size);
- };
-
- bool Write(void* Buf, uint32_t Dest, uint32_t Size)
- {
- if (m_Journal.Use)
- {
- DWORD written;
-
- TJournalEntry * data = reinterpret_cast<TJournalEntry*>(m_Journal.Buffer + m_Journal.BufUse);
- data->Signature = 'writ';
- data->Address = Dest;
- data->Size = Size;
- m_Journal.BufUse += 12;
- if (Size + m_Journal.BufUse < sizeof(m_Journal.Buffer) - 12) // one journal header has always to fit in
- {
- memcpy(m_Journal.Buffer + m_Journal.BufUse, Buf, Size);
- m_Journal.BufUse += Size;
- } else {
- WriteFile(m_Journal.hFile, m_Journal.Buffer, m_Journal.BufUse, &written, NULL);
- WriteFile(m_Journal.hFile, Buf, Size, &written, NULL);
-
- m_Journal.BufUse = 0;
- }
- } else {
- _Write(Buf, Dest, Size);
- }
-
- return true;
- };
-
- void Invalidate(uint32_t Dest, uint32_t Size)
- {
- if (m_Journal.Use)
- {
- DWORD written;
-
- TJournalEntry * data = reinterpret_cast<TJournalEntry*>(m_Journal.Buffer + m_Journal.BufUse);
- data->Signature = 'inva';
- data->Address = Dest;
- data->Size = Size;
- m_Journal.BufUse += 12;
- if (m_Journal.BufUse > sizeof(m_Journal.Buffer) - 12)
- {
- WriteFile(m_Journal.hFile, m_Journal.Buffer, m_Journal.BufUse, &written, NULL);
- m_Journal.BufUse = 0;
- }
- } else {
- _Invalidate(Dest, Size);
- }
- };
-
- void Flush()
- {
- if (m_Journal.Use)
- {
- if (m_Journal.BufUse)
- {
- DWORD written;
- WriteFile(m_Journal.hFile, m_Journal.Buffer, m_Journal.BufUse, &written, NULL);
- m_Journal.BufUse = 0;
- }
- FlushFileBuffers(m_Journal.hFile);
- } else {
- _Flush();
- }
- };
-
- void UseJournal(bool UseIt)
- {
- m_Journal.Use = UseIt;
- };
-
- void CompleteTransaction()
- {
- if (m_Size != m_LastSize)
- {
- m_sigFileSizeChanged.emit(this, m_Size);
- m_LastSize = m_Size;
- }
- };
- void CloseTransaction()
- {
- if (m_Journal.Use)
- {
- DWORD written;
-
- TJournalEntry * data = reinterpret_cast<TJournalEntry*>(m_Journal.Buffer + m_Journal.BufUse);
- data->Signature = 'fini';
- data->Address = 0;
- data->Size = m_Size;
-
- WriteFile(m_Journal.hFile, m_Journal.Buffer, m_Journal.BufUse + 12, &written, NULL);
- m_Journal.BufUse = 0;
- }
- };
-
- void CleanJournal();
-
- uint32_t Size(uint32_t NewSize);
- uint32_t Size()
- { return m_Size; };
- void ReadOnly(bool ReadOnly)
- { m_ReadOnly = ReadOnly; };
- bool ReadOnly()
- { return m_ReadOnly; };
-
- typedef sigslot::signal2<CFileAccess *, uint32_t> TOnFileSizeChanged;
-
- TOnFileSizeChanged & sigFileSizeChanged()
- { return m_sigFileSizeChanged; };
-
-protected:
- TCHAR* m_FileName;
- struct {
- bool Use;
- TCHAR* FileName;
- HANDLE hFile;
-
- uint8_t Buffer[4096];
- uint32_t BufUse;
- } m_Journal;
-
- uint32_t m_Size;
- uint32_t m_AllocSize;
- uint32_t m_AllocGranularity;
- uint32_t m_MinAllocGranularity;
- uint32_t m_MaxAllocGranularity;
- uint32_t m_LastAllocTime;
- bool m_ReadOnly;
- uint32_t m_LastSize;
-
- TOnFileSizeChanged m_sigFileSizeChanged;
- virtual uint32_t _Read(void* Buf, uint32_t Source, uint32_t Size) = 0;
- virtual uint32_t _Write(void* Buf, uint32_t Dest, uint32_t Size) = 0;
- virtual void _Invalidate(uint32_t Dest, uint32_t Size) = 0;
- virtual uint32_t _SetSize(uint32_t Size) = 0;
- virtual void _Flush() = 0;
-
-#pragma pack (push, 1)
- typedef struct TJournalEntry
- {
- uint32_t Signature;
- uint32_t Address;
- uint32_t Size;
- } TJournalEntry;
-#pragma pack (pop)
-
- void InitJournal();
- void ProcessJournal();
-};
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