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/*
Miranda NG: the free IM client for Microsoft* Windows*
Copyright (C) 2012-22 Miranda NG team (https://miranda-ng.org)
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.
*/
#pragma once
#define OWN_CACHED_CONTACT
#include <m_db_int.h>
#pragma warning (disable: 4200)
#define DBMODE_SHARED 0x0001
#define DBMODE_READONLY 0x0002
#define MARKED_READ (DBEF_READ | DBEF_SENT)
#include <pshpack1.h>
#define DBHEADER_VERSION MAKELONG(1, 4)
#define DBHEADER_SIGNATURE 0x40DECADEu
struct DBHeader
{
uint32_t dwSignature;
uint32_t dwVersion; // database format version
};
struct DBContact
{
uint32_t dwEventCount; // number of events in the chain for this contact
MEVENT evFirstUnread;
uint64_t tsFirstUnread;
};
struct DBEvent
{
MCONTACT dwContactID; // a contact this event belongs to
uint32_t iModuleId; // offset to a DBModuleName struct of the name of
uint64_t timestamp; // seconds since 00:00:00 01/01/1970
uint32_t flags; // see m_database.h, db/event/add
uint16_t wEventType; // module-defined event type
uint16_t cbBlob; // number of bytes in the blob
bool __forceinline markedRead() const
{
return (flags & MARKED_READ) != 0;
}
};
struct DBEventSortingKey
{
MCONTACT hContact;
MEVENT hEvent;
uint64_t ts;
static int Compare(const MDBX_val*, const MDBX_val*) MDBX_CXX17_NOEXCEPT;
};
struct DBEventIdKey
{
uint32_t iModuleId; // offset to a DBModuleName struct of the name of
char szEventId[256]; // string id
static int Compare(const MDBX_val*, const MDBX_val*) MDBX_CXX17_NOEXCEPT;
};
struct DBSettingKey
{
MCONTACT hContact;
uint32_t dwModuleId;
char szSettingName[1];
static int Compare(const MDBX_val*, const MDBX_val*) MDBX_CXX17_NOEXCEPT;
};
struct DBSettingValue
{
uint8_t type;
union
{
uint8_t bVal;
uint16_t wVal;
uint32_t dwVal;
char szVal[];
struct
{
size_t nLength;
uint8_t bVal[];
} blob;
};
};
#include <poppack.h>
struct DBCachedContact : public DBCachedContactBase
{
void Advance(MEVENT id, DBEvent &dbe);
void Snapshot();
void Revert();
DBContact dbc, tmp_dbc;
uint64_t t_tsLast;
MEVENT t_evLast;
};
struct EventItem
{
__forceinline EventItem(int _ts, MEVENT _id) :
ts(_ts), eventId(_id)
{}
uint64_t ts;
MEVENT eventId;
};
class CDbxMDBX : public MDatabaseCommon, public MIDatabaseChecker, public MZeroedObject
{
friend class CMdbxEventCursor;
friend class txn_ptr;
friend class txn_ptr_ro;
typedef std::map<uint32_t, std::string> TModuleMap;
struct Impl {
CDbxMDBX &pro;
CTimer m_timer;
void OnTimer(CTimer *pTimer)
{
pTimer->Stop();
pro.DBFlush(true);
}
Impl(CDbxMDBX &_p) :
pro(_p),
m_timer(Miranda_GetSystemWindow(), UINT_PTR(this))
{
m_timer.OnEvent = Callback(this, &Impl::OnTimer);
}
} m_impl;
MDBX_txn* StartTran();
bool CheckEvent(DBCachedContact *cc, const DBEvent *dbe, DBCachedContact *&cc2);
bool EditEvent(MCONTACT contactID, MEVENT hDbEvent, const DBEVENTINFO *dbe, bool bNew);
int PrepareCheck(void);
void TouchFile(void);
////////////////////////////////////////////////////////////////////////////
// database stuff
ptrW m_pwszProfileName;
bool m_safetyMode = true, m_bReadOnly;
MDBX_env *m_env;
MDBX_txn *m_pWriteTran;
int m_dbError;
MDBX_dbi m_dbGlobal;
DBHeader m_header;
DBCachedContact m_ccDummy; // dummy contact to serve a cache item for MCONTACT = 0
////////////////////////////////////////////////////////////////////////////
// settings
MDBX_dbi m_dbSettings;
HANDLE hService[1], hHook;
void FillSettings(void);
////////////////////////////////////////////////////////////////////////////
// contacts
MDBX_dbi m_dbContacts;
MCONTACT m_maxContactId = 0;
void FillContacts(void);
void GatherContactHistory(MCONTACT hContact, OBJLIST<EventItem> &items);
////////////////////////////////////////////////////////////////////////////
// events
MDBX_dbi m_dbEvents, m_dbEventsSort, m_dbEventIds;
MDBX_cursor *m_curEventsSort;
MEVENT m_dwMaxEventId;
void FindNextUnread(const txn_ptr &_txn, DBCachedContact *cc, DBEventSortingKey &key2);
////////////////////////////////////////////////////////////////////////////
// modules
MDBX_dbi m_dbModules;
TModuleMap m_Modules;
int InitModules();
uint32_t GetModuleID(const char *szName);
char* GetModuleName(uint32_t dwId);
////////////////////////////////////////////////////////////////////////////
// encryption
MDBX_dbi m_dbCrypto;
public:
CDbxMDBX(const wchar_t *tszFileName, int mode);
virtual ~CDbxMDBX();
int Check(void);
void DBFlush(bool bForce = false);
int Load();
int Map();
int CheckEvents1(void);
int CheckEvents2(void);
int CheckEvents3(void);
public:
STDMETHODIMP_(BOOL) IsRelational(void) override { return TRUE; }
STDMETHODIMP_(void) SetCacheSafetyMode(BOOL) override;
STDMETHODIMP_(int) GetContactCount(void) override;
STDMETHODIMP_(int) DeleteContact(MCONTACT contactID) override;
STDMETHODIMP_(MCONTACT) AddContact(void) override;
STDMETHODIMP_(BOOL) IsDbContact(MCONTACT contactID) override;
STDMETHODIMP_(int) GetContactSize(void) override;
STDMETHODIMP_(int) GetEventCount(MCONTACT contactID) override;
STDMETHODIMP_(MEVENT) AddEvent(MCONTACT contactID, const DBEVENTINFO *dbe) override;
STDMETHODIMP_(BOOL) DeleteEvent(MEVENT hDbEvent) override;
STDMETHODIMP_(BOOL) EditEvent(MCONTACT contactID, MEVENT hDbEvent, const DBEVENTINFO *dbe) override;
STDMETHODIMP_(int) GetBlobSize(MEVENT hDbEvent) override;
STDMETHODIMP_(BOOL) GetEvent(MEVENT hDbEvent, DBEVENTINFO *dbe) override;
STDMETHODIMP_(BOOL) MarkEventRead(MCONTACT contactID, MEVENT hDbEvent) override;
STDMETHODIMP_(MCONTACT) GetEventContact(MEVENT hDbEvent) override;
STDMETHODIMP_(MEVENT) FindFirstEvent(MCONTACT contactID) override;
STDMETHODIMP_(MEVENT) FindFirstUnreadEvent(MCONTACT contactID) override;
STDMETHODIMP_(MEVENT) FindLastEvent(MCONTACT contactID) override;
STDMETHODIMP_(MEVENT) FindNextEvent(MCONTACT contactID, MEVENT hDbEvent) override;
STDMETHODIMP_(MEVENT) FindPrevEvent(MCONTACT contactID, MEVENT hDbEvent) override;
STDMETHODIMP_(BOOL) EnumModuleNames(DBMODULEENUMPROC pFunc, void *pParam) override;
STDMETHODIMP_(BOOL) WriteContactSettingWorker(MCONTACT contactID, DBCONTACTWRITESETTING &dbcws) override;
STDMETHODIMP_(BOOL) DeleteContactSetting(MCONTACT contactID, const char *szModule, const char *szSetting) override;
STDMETHODIMP_(BOOL) EnumContactSettings(MCONTACT hContact, DBSETTINGENUMPROC pfnEnumProc, const char *szModule, void *param) override;
STDMETHODIMP_(BOOL) MetaMergeHistory(DBCachedContact *ccMeta, DBCachedContact *ccSub) override;
STDMETHODIMP_(BOOL) MetaSplitHistory(DBCachedContact *ccMeta, DBCachedContact *ccSub) override;
STDMETHODIMP_(BOOL) MetaRemoveSubHistory(DBCachedContact *ccSub) override;
STDMETHODIMP_(CRYPTO_PROVIDER*) ReadProvider(void) override;
STDMETHODIMP_(BOOL) StoreProvider(CRYPTO_PROVIDER*) override;
STDMETHODIMP_(BOOL) EnableEncryption(BOOL) override;
STDMETHODIMP_(BOOL) ReadEncryption(void) override;
STDMETHODIMP_(BOOL) ReadCryptoKey(MBinBuffer&) override;
STDMETHODIMP_(BOOL) StoreCryptoKey(void) override;
STDMETHODIMP_(BOOL) Compact() override;
STDMETHODIMP_(BOOL) Backup(const wchar_t*) override;
STDMETHODIMP_(BOOL) Flush() override;
STDMETHODIMP_(MEVENT) GetEventById(const char *szModule, const char *szId) override;
STDMETHODIMP_(DATABASELINK*) GetDriver() override;
STDMETHODIMP_(DB::EventCursor *) EventCursor(MCONTACT hContact, MEVENT hDbEvent) override;
STDMETHODIMP_(DB::EventCursor *) EventCursorRev(MCONTACT hContact, MEVENT hDbEvent) override;
protected:
STDMETHODIMP_(MIDatabaseChecker *) GetChecker() override
{
return this;
}
STDMETHODIMP_(BOOL) Start(DBCHeckCallback *callback)
{
cb = callback;
return ERROR_SUCCESS;
}
STDMETHODIMP_(VOID) Destroy()
{}
STDMETHODIMP_(BOOL) CheckDb(int phase);
DBCHeckCallback *cb;
};
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