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/*
Miranda NG: the free IM client for Microsoft* Windows*
Copyright 2012 Miranda NG project,
all portions of this codebase are copyrighted to the people
listed in contributors.txt.
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.
*/
#include <m_db_int.h>
struct ModuleName
{
char *name;
DWORD ofs;
};
struct CDdxMmap : public MIDatabase, public MZeroedObject
{
CDdxMmap(const TCHAR* tszFileName);
~CDdxMmap();
int Load(bool bSkipInit);
int Create(void);
int CreateDbHeaders();
int CheckDbHeaders();
void DatabaseCorruption(TCHAR *text);
protected:
STDMETHODIMP_(void) SetCacheSafetyMode(BOOL);
STDMETHODIMP_(LONG) GetContactCount(void);
STDMETHODIMP_(HANDLE) FindFirstContact(const char* szProto = NULL);
STDMETHODIMP_(HANDLE) FindNextContact(HANDLE hContact, const char* szProto = NULL);
STDMETHODIMP_(LONG) DeleteContact(HANDLE hContact);
STDMETHODIMP_(HANDLE) AddContact(void);
STDMETHODIMP_(BOOL) IsDbContact(HANDLE hContact);
STDMETHODIMP_(LONG) GetEventCount(HANDLE hContact);
STDMETHODIMP_(HANDLE) AddEvent(HANDLE hContact, DBEVENTINFO *dbe);
STDMETHODIMP_(BOOL) DeleteEvent(HANDLE hContact, HANDLE hDbEvent);
STDMETHODIMP_(LONG) GetBlobSize(HANDLE hDbEvent);
STDMETHODIMP_(BOOL) GetEvent(HANDLE hDbEvent, DBEVENTINFO *dbe);
STDMETHODIMP_(BOOL) MarkEventRead(HANDLE hContact, HANDLE hDbEvent);
STDMETHODIMP_(HANDLE) GetEventContact(HANDLE hDbEvent);
STDMETHODIMP_(HANDLE) FindFirstEvent(HANDLE hContact);
STDMETHODIMP_(HANDLE) FindFirstUnreadEvent(HANDLE hContact);
STDMETHODIMP_(HANDLE) FindLastEvent(HANDLE hContact);
STDMETHODIMP_(HANDLE) FindNextEvent(HANDLE hDbEvent);
STDMETHODIMP_(HANDLE) FindPrevEvent(HANDLE hDbEvent);
STDMETHODIMP_(BOOL) EnumModuleNames(DBMODULEENUMPROC pFunc, void *pParam);
STDMETHODIMP_(BOOL) GetContactSetting(HANDLE hContact, DBCONTACTGETSETTING *dbcgs);
STDMETHODIMP_(BOOL) GetContactSettingStr(HANDLE hContact, DBCONTACTGETSETTING *dbcgs);
STDMETHODIMP_(BOOL) GetContactSettingStatic(HANDLE hContact, DBCONTACTGETSETTING *dbcgs);
STDMETHODIMP_(BOOL) FreeVariant(DBVARIANT *dbv);
STDMETHODIMP_(BOOL) WriteContactSetting(HANDLE hContact, DBCONTACTWRITESETTING *dbcws);
STDMETHODIMP_(BOOL) DeleteContactSetting(HANDLE hContact, DBCONTACTGETSETTING *dbcgs);
STDMETHODIMP_(BOOL) EnumContactSettings(HANDLE hContact, DBCONTACTENUMSETTINGS* dbces);
STDMETHODIMP_(BOOL) SetSettingResident(BOOL bIsResident, const char *pszSettingName);
STDMETHODIMP_(BOOL) EnumResidentSettings(DBMODULEENUMPROC pFunc, void *pParam);
private:
TCHAR* m_tszProfileName;
HANDLE m_hDbFile;
DBHeader m_dbHeader;
DWORD m_ChunkSize;
BOOL m_safetyMode;
////////////////////////////////////////////////////////////////////////////
// database stuff
public:
UINT_PTR m_flushBuffersTimerId;
DWORD m_flushFailTick;
PBYTE m_pDbCache;
private:
PBYTE m_pNull;
HANDLE m_hMap;
DWORD m_dwFileSize;
CRITICAL_SECTION m_csDbAccess;
int CheckProto(HANDLE hContact, const char *proto);
DWORD CreateNewSpace(int bytes);
void DeleteSpace(DWORD ofs, int bytes);
DWORD ReallocSpace(DWORD ofs, int oldSize, int newSize);
void Map();
void ReMap(DWORD needed);
void DBMoveChunk(DWORD ofsDest, DWORD ofsSource, int bytes);
PBYTE DBRead(DWORD ofs, int bytesRequired, int *bytesAvail);
void DBWrite(DWORD ofs, PVOID pData, int bytes);
void DBFill(DWORD ofs, int bytes);
void DBFlush(int setting);
int InitCache(void);
__forceinline PBYTE DBRead(HANDLE hContact, int bytesRequired, int *bytesAvail)
{ return DBRead((DWORD)hContact, bytesRequired, bytesAvail);
}
////////////////////////////////////////////////////////////////////////////
// settings
int m_codePage;
HANDLE m_hCacheHeap;
HANDLE m_hLastCachedContact;
char* m_lastSetting;
DBCachedContactValueList *m_lastVL;
LIST<DBCachedContactValueList> m_lContacts;
LIST<DBCachedGlobalValue> m_lGlobalSettings;
LIST<char> m_lSettings, m_lResidentSettings;
HANDLE hSettingChangeEvent, hContactDeletedEvent, hContactAddedEvent;
DWORD GetSettingsGroupOfsByModuleNameOfs(DBContact *dbc,DWORD ofsModuleName);
char* InsertCachedSetting(const char* szName, size_t cbNameLen);
char* GetCachedSetting(const char *szModuleName,const char *szSettingName, int moduleNameLen, int settingNameLen);
void SetCachedVariant(DBVARIANT* s, DBVARIANT* d);
void FreeCachedVariant(DBVARIANT* V);
DBVARIANT* GetCachedValuePtr(HANDLE hContact, char* szSetting, int bAllocate);
int GetContactSettingWorker(HANDLE hContact,DBCONTACTGETSETTING *dbcgs,int isStatic);
////////////////////////////////////////////////////////////////////////////
// contacts
DBCachedContactValueList* AddToCachedContactList(HANDLE hContact, int index);
////////////////////////////////////////////////////////////////////////////
// modules
HANDLE m_hModHeap;
LIST<ModuleName> m_lMods, m_lOfs;
HANDLE hEventAddedEvent, hEventDeletedEvent, hEventFilterAddedEvent;
ModuleName *m_lastmn;
void AddToList(char *name, DWORD len, DWORD ofs);
DWORD FindExistingModuleNameOfs(const char *szName);
int InitModuleNames(void);
DWORD GetModuleNameOfs(const char *szName);
char *GetModuleNameByOfs(DWORD ofs);
};
extern LIST<CDdxMmap> g_Dbs;
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