From 48540940b6c28bb4378abfeb500ec45a625b37b6 Mon Sep 17 00:00:00 2001 From: Vadim Dashevskiy Date: Tue, 15 May 2012 10:38:20 +0000 Subject: initial commit git-svn-id: http://svn.miranda-ng.org/main/trunk@2 1316c22d-e87f-b044-9b9b-93d7a3e3ba9c --- plugins/Dbx_mmap_SA/Dbtool/database.h | 179 ++++++++++++++++++++++++++++++++++ 1 file changed, 179 insertions(+) create mode 100644 plugins/Dbx_mmap_SA/Dbtool/database.h (limited to 'plugins/Dbx_mmap_SA/Dbtool/database.h') diff --git a/plugins/Dbx_mmap_SA/Dbtool/database.h b/plugins/Dbx_mmap_SA/Dbtool/database.h new file mode 100644 index 0000000000..aa73d16362 --- /dev/null +++ b/plugins/Dbx_mmap_SA/Dbtool/database.h @@ -0,0 +1,179 @@ +/* + +Miranda IM: the free IM client for Microsoft* Windows* + +Copyright 2000-2005 Miranda ICQ/IM 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. +*/ + +//all offsets are relative to the start of the file +//offsets are 0 if there is nothing in the chain or this is the last in the +//chain + +/* tree diagram + +DBHeader + |-->end of file (plain offset) + |-->first contact (DBContact) + | |-->next contact (DBContact) + | | \--> ... + | |-->first settings (DBContactSettings) + | | |-->next settings (DBContactSettings) + | | | \--> ... + | | \-->module name (DBModuleName) + | \-->first/last/firstunread event + |-->user contact (DBContact) + | |-->next contact=NULL + | |-->first settings as above + | \-->first/last/firstunread event as above + \-->first module name (DBModuleName) + \-->next module name (DBModuleName) + \--> ... +*/ + +#define DB_RESIZE_GRANULARITY 16384 +#define DB_THIS_VERSION 0x00000700u +#define DB_SETTINGS_RESIZE_GRANULARITY 128 + +#include +struct DBHeader { + BYTE signature[16]; // 'Miranda ICQ DB',0,26 + + WORD checkWord; + WORD cryptorUID; + DWORD ofsFileEnd; //offset of the end of the database - place to write + //new structures + DWORD slackSpace; //a counter of the number of bytes that have been + //wasted so far due to deleting structures and/or + //re-making them at the end. We should compact when + //this gets above a threshold + DWORD contactCount; //number of contacts in the chain,excluding the user + DWORD ofsFirstContact; //offset to first struct DBContact in the chain + DWORD ofsUser; //offset to struct DBContact representing the user + DWORD ofsFirstModuleName; //offset to first struct DBModuleName in the chain +}; + +#define DBCONTACT_SIGNATURE 0x43DECADEu +struct DBContact { + DWORD signature; + DWORD ofsNext; //offset to the next contact in the chain. zero if + //this is the 'user' contact or the last contact + //in the chain + DWORD ofsFirstSettings; //offset to the first DBContactSettings in the + //chain for this contact. + DWORD eventCount; //number of events in the chain for this contact + DWORD ofsFirstEvent,ofsLastEvent; //offsets to the first and last DBEvent in + //the chain for this contact + DWORD ofsFirstUnreadEvent; //offset to the first (chronological) unread event + //in the chain, 0 if all are read + DWORD timestampFirstUnread; //timestamp of the event at ofsFirstUnreadEvent +}; + +#define DBMODULENAME_SIGNATURE 0x4DDECADEu +struct DBModuleName { + DWORD signature; + DWORD ofsNext; //offset to the next module name in the chain + BYTE cbName; //number of characters in this module name + char name[1]; //name, no nul terminator +}; + +#define DBCONTACTSETTINGS_SIGNATURE 0x53DECADEu +struct DBContactSettings { + DWORD signature; + DWORD ofsNext; //offset to the next contactsettings in the chain + DWORD ofsModuleName; //offset to the DBModuleName of the owner of these + //settings + DWORD cbBlob; //size of the blob in bytes. May be larger than the + //actual size for reducing the number of moves + //required using granularity in resizing + BYTE blob[1]; //the blob. a back-to-back sequence of DBSetting + //structs, the last has cbName=0 +}; + +/* not a valid structure, content is figured out on the fly +struct DBSetting { + BYTE cbName; //number of bytes in the name of this setting + //this =0 marks the end + char szName[...]; //setting name, excluding nul + BYTE dataType; //type of data. see m_database.h, db/contact/getsetting + union { //a load of types of data, length is defined by dataType + BYTE bVal; WORD wVal; DWORD dVal; + struct { + WORD cbString; + char szVal[...]; //excludes nul terminator + }; + struct { + WORD cbBlob; + BYTE blobVal[...]; + }; + }; +}; +*/ + +#define DBEVENT_SIGNATURE 0x45DECADEu +struct DBEvent { + DWORD signature; + DWORD ofsPrev,ofsNext; //offset to the previous and next events in the + //chain. Chain is sorted chronologically + DWORD ofsModuleName; //offset to a DBModuleName struct of the name of + //the owner of this event + DWORD timestamp; //seconds since 00:00:00 01/01/1970 + DWORD flags; //see m_database.h, db/event/add + WORD eventType; //module-defined event type + DWORD cbBlob; //number of bytes in the blob + BYTE blob[1]; //the blob. module-defined formatting +}; +#include + +//databasecorruption: called if any signatures are broken. very very fatal +void DatabaseCorruption(const char *szPart); +PBYTE DBRead(DWORD ofs,int bytesRequired,int *bytesAvail); //any preview result could be invalidated by the next call +void DBWrite(DWORD ofs,PVOID pData,int count); +void DBFlush(int setting); +void DBMoveChunk(DWORD ofsDest,DWORD ofsSource,int bytes); +DWORD CreateNewSpace(int bytes); +void DeleteSpace(DWORD ofs,int bytes); +void GetProfileDirectory(char *szPath,int cbPath); +int GetDefaultProfilePath(char *szPath,int cbPath,int *specified); +int ShouldShowProfileManager(void); + +#ifdef _DEBUG +#define MAXCACHEDREADSIZE 512 +#else +#define MAXCACHEDREADSIZE 2048 //technically 4096 would work, but I'm not going to push it +#endif + +#ifdef _DEBUG +//#define DBLOGGING +#endif +#ifdef DBLOGGING +void DBLog(const char *file,int line,const char *fmt,...); +#define logg() DBLog(__FILE__,__LINE__,"") +#define log0(s) DBLog(__FILE__,__LINE__,s) +#define log1(s,a) DBLog(__FILE__,__LINE__,s,a) +#define log2(s,a,b) DBLog(__FILE__,__LINE__,s,a,b) +#define log3(s,a,b,c) DBLog(__FILE__,__LINE__,s,a,b,c) +#define log4(s,a,b,c,d) DBLog(__FILE__,__LINE__,s,a,b,c,d) +#else +#define logg() +#define log0(s) +#define log1(s,a) +#define log2(s,a,b) +#define log3(s,a,b,c) +#define log4(s,a,b,c,d) +#endif \ No newline at end of file -- cgit v1.2.3