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/*
Miranda NG: the free IM client for Microsoft* Windows*
Copyright (C) 2012-19 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.
*/
#include "stdafx.h"
DWORD CDb3Mmap::CreateNewSpace(int bytes)
{
DWORD ofsNew = m_dbHeader.ofsFileEnd;
m_dbHeader.ofsFileEnd += bytes;
if (m_dbHeader.ofsFileEnd > m_dwFileSize)
ReMap(m_dbHeader.ofsFileEnd - m_dwFileSize);
DBWrite(0, &m_dbHeader, sizeof(m_dbHeader));
log2("newspace %d@%08x", bytes, ofsNew);
return ofsNew;
}
void CDb3Mmap::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 CDb3Mmap::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 wchar_t *msg = nullptr;
static DWORD dwErr = 0;
static wchar_t tszPanic[] = LPGENW("Miranda has detected corruption in your database. Miranda will now shut down.");
void __cdecl dbpanic(void *)
{
if (msg) {
if (dwErr == ERROR_DISK_FULL)
msg = TranslateT("Disk is full. Miranda will now shut down.");
wchar_t err[256];
mir_snwprintf(err, msg, TranslateT("Database failure. Miranda will now shut down."), dwErr);
MessageBox(nullptr, err, TranslateT("Database Error"), MB_SETFOREGROUND | MB_TOPMOST | MB_APPLMODAL | MB_ICONWARNING | MB_OK);
}
else MessageBox(nullptr, TranslateW(tszPanic), TranslateT("Database Panic"), MB_SETFOREGROUND | MB_TOPMOST | MB_APPLMODAL | MB_ICONWARNING | MB_OK);
TerminateProcess(GetCurrentProcess(), 255);
}
void CDb3Mmap::DatabaseCorruption(wchar_t *text)
{
int kill = 0;
mir_cslockfull lck(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 */
Sleep(INFINITE);
return;
}
lck.unlock();
if (kill) {
_beginthread(dbpanic, 0, nullptr);
Sleep(INFINITE);
}
}
/////////////////////////////////////////////////////////////////////////////////////////
#ifdef DBLOGGING
char* printVariant(DBVARIANT* p)
{
static char boo[1000];
switch (p->type) {
case DBVT_BYTE: mir_snprintf(boo, "byte: %d", p->bVal ); break;
case DBVT_WORD: mir_snprintf(boo, "word: %d", p->wVal ); break;
case DBVT_DWORD: mir_snprintf(boo, "dword: %d", p->dVal ); break;
case DBVT_UTF8:
case DBVT_ASCIIZ: mir_snprintf(boo, "string: '%s'", p->pszVal); break;
case DBVT_DELETED: mir_strcpy(boo, "deleted"); break;
default: mir_snprintf(boo, "crap: %d", p->type ); break;
}
return boo;
}
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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