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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 "commonheaders.h"
int InitModuleNames(void);
int InitCache(void);
int InitIni(void);
void UninitIni(void);
DWORD CDdxMmap::CreateNewSpace(int bytes)
{
DWORD ofsNew = m_dbHeader.ofsFileEnd;
m_dbHeader.ofsFileEnd += bytes;
DBWrite(0, &m_dbHeader, sizeof(m_dbHeader));
log2("newspace %d@%08x", bytes, ofsNew);
return ofsNew;
}
void CDdxMmap::DeleteSpace(DWORD ofs, int bytes)
{
if (ofs+bytes == m_dbHeader.ofsFileEnd) {
log2("freespace %d@%08x",bytes,ofs);
m_dbHeader.ofsFileEnd = ofs;
}
else {
log2("deletespace %d@%08x",bytes,ofs);
m_dbHeader.slackSpace += bytes;
}
DBWrite(0, &m_dbHeader, sizeof(m_dbHeader));
DBFill(ofs, bytes);
}
DWORD CDdxMmap::ReallocSpace(DWORD ofs, int oldSize, int newSize)
{
if (oldSize >= newSize)
return ofs;
DWORD ofsNew;
if (ofs+oldSize == m_dbHeader.ofsFileEnd) {
ofsNew = ofs;
m_dbHeader.ofsFileEnd += newSize-oldSize;
DBWrite(0,&m_dbHeader,sizeof(m_dbHeader));
log3("adding newspace %d@%08x+%d", newSize, ofsNew, oldSize);
}
else {
ofsNew = CreateNewSpace(newSize);
DBMoveChunk(ofsNew,ofs,oldSize);
DeleteSpace(ofs,oldSize);
}
return ofsNew;
}
/////////////////////////////////////////////////////////////////////////////////////////
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 CDdxMmap::DatabaseCorruption(TCHAR *text)
{
int kill = 0;
EnterCriticalSection(&m_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(&m_csDbAccess);
Sleep(INFINITE);
return;
}
LeaveCriticalSection(&m_csDbAccess);
if (kill) {
_beginthread(dbpanic,0,NULL);
Sleep(INFINITE);
}
}
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