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/*
Miranda IM: the free IM client for Microsoft* Windows*
Copyright 2000-2003 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.
*/
#include "commonheaders.h"
int ProfileManager(char *szDbDest,int cbDbDest);
int ShouldAutoCreate(void);
int CreateDbHeaders(HANDLE hFile);
int InitialiseDbHeaders(void);
int InitSettings(void);
void UninitSettings(void);
int InitContacts(void);
void UninitContacts(void);
int InitEvents(void);
void UninitEvents(void);
int InitCrypt(void);
int InitModuleNames(void);
void UninitModuleNames(void);
int InitCache(void);
void UninitCache(void);
int InitIni(void);
void UninitIni(void);
HANDLE hDbFile=INVALID_HANDLE_VALUE;
CRITICAL_SECTION csDbAccess;
struct DBHeader dbHeader;
char szDbPath[MAX_PATH];
static void UnloadDatabase(void)
{
// update profile last modified time
DWORD bytesWritten;
SetFilePointer(hDbFile,0,NULL,FILE_BEGIN);
WriteFile(hDbFile,&dbSignature,1,&bytesWritten,NULL);
CloseHandle(hDbFile);
}
DWORD CreateNewSpace(int bytes)
{
DWORD ofsNew;
ofsNew=dbHeader.ofsFileEnd;
dbHeader.ofsFileEnd+=bytes;
DBWrite(0,&dbHeader,sizeof(dbHeader));
log2("newspace %d@%08x",bytes,ofsNew);
return ofsNew;
}
void DeleteSpace(DWORD ofs,int bytes)
{
if (ofs+bytes == dbHeader.ofsFileEnd) {
log2("freespace %d@%08x",bytes,ofs);
dbHeader.ofsFileEnd=ofs;
} else {
log2("deletespace %d@%08x",bytes,ofs);
dbHeader.slackSpace+=bytes;
}
DBWrite(0,&dbHeader,sizeof(dbHeader));
DBFill(ofs,bytes);
}
DWORD ReallocSpace(DWORD ofs,int oldSize,int newSize)
{
DWORD ofsNew;
if (oldSize >= newSize) return ofs;
if (ofs+oldSize == dbHeader.ofsFileEnd) {
ofsNew = ofs;
dbHeader.ofsFileEnd+=newSize-oldSize;
DBWrite(0,&dbHeader,sizeof(dbHeader));
log3("adding newspace %d@%08x+%d",newSize,ofsNew,oldSize);
} else {
ofsNew=CreateNewSpace(newSize);
DBMoveChunk(ofsNew,ofs,oldSize);
DeleteSpace(ofs,oldSize);
}
return ofsNew;
}
void UnloadDatabaseModule(void)
{
//UninitIni();
UninitEvents();
UninitSettings();
UninitContacts();
UninitModuleNames();
UninitCache();
UnloadDatabase();
DeleteCriticalSection(&csDbAccess);
}
int LoadDatabaseModule(void)
{
InitializeCriticalSection(&csDbAccess);
log0("DB logging running");
{
DWORD dummy=0;
hDbFile=CreateFileA(szDbPath,GENERIC_READ|GENERIC_WRITE, FILE_SHARE_READ, NULL, OPEN_ALWAYS, 0, NULL);
if ( hDbFile == INVALID_HANDLE_VALUE ) {
return 1;
}
if ( !ReadFile(hDbFile,&dbHeader,sizeof(dbHeader),&dummy,NULL)) {
CloseHandle(hDbFile);
return 1;
}
}
//if(ParseCommandLine()) return 1;
if(InitCache()) return 1;
if(InitModuleNames()) return 1;
if(InitContacts()) return 1;
if(InitSettings()) return 1;
if(InitEvents()) return 1;
if(InitCrypt()) return 1;
return 0;
}
static DWORD DatabaseCorrupted=0;
static TCHAR *msg = NULL;
static DWORD dwErr = 0;
void __cdecl dbpanic(void *arg)
{
if (msg)
{
TCHAR err[256];
if (dwErr==ERROR_DISK_FULL)
msg = TranslateT("Disk is full. Miranda will now shutdown.");
mir_sntprintf(err, SIZEOF(err), msg, TranslateT("Database failure. Miranda will now shutdown."), dwErr);
MessageBox(0,err,TranslateT("Database Error"),MB_SETFOREGROUND|MB_TOPMOST|MB_APPLMODAL|MB_ICONWARNING|MB_OK);
}
else
MessageBox(0,TranslateT("Miranda has detected corruption in your database. This corruption maybe fixed by DBTool. Please download it from http://www.miranda-im.org. Miranda will now shutdown."),
TranslateT("Database Panic"),MB_SETFOREGROUND|MB_TOPMOST|MB_APPLMODAL|MB_ICONWARNING|MB_OK);
TerminateProcess(GetCurrentProcess(),255);
}
void DatabaseCorruption(TCHAR *text)
{
int kill=0;
EnterCriticalSection(&csDbAccess);
if (DatabaseCorrupted==0) {
DatabaseCorrupted++;
kill++;
msg = text;
dwErr = GetLastError();
} else {
/* db is already corrupted, someone else is dealing with it, wait here
so that we don't do any more damage */
LeaveCriticalSection(&csDbAccess);
Sleep(INFINITE);
return;
}
LeaveCriticalSection(&csDbAccess);
if (kill) {
_beginthread(dbpanic,0,NULL);
Sleep(INFINITE);
}
}
#ifdef DBLOGGING
void DBLog(const char *file,int line,const char *fmt,...)
{
FILE *fp;
va_list vararg;
char str[1024];
va_start(vararg,fmt);
mir_vsnprintf(str,sizeof(str),fmt,vararg);
va_end(vararg);
fp=fopen("c:\\mirandadatabase.log.txt","at");
fprintf(fp,"%u: %s %d: %s\n",GetTickCount(),file,line,str);
fclose(fp);
}
#endif
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