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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"
void CDb3Base::AddToList(char *name, DWORD len, DWORD ofs)
{
ModuleName *mn = (ModuleName*)HeapAlloc(m_hModHeap,0,sizeof(ModuleName));
mn->name = name;
mn->ofs = ofs;
if (m_lMods.getIndex(mn) != -1)
DatabaseCorruption( _T("%s (Module Name not unique)"));
m_lMods.insert(mn);
if (m_lOfs.getIndex(mn) != -1)
DatabaseCorruption( _T("%s (Module Offset not unique)"));
m_lOfs.insert(mn);
}
int CDb3Base::InitModuleNames(void)
{
DWORD ofsThis = m_dbHeader.ofsFirstModuleName;
DBModuleName *dbmn = (struct DBModuleName*)DBRead(ofsThis,sizeof(struct DBModuleName),NULL);
while (ofsThis) {
if (dbmn->signature != DBMODULENAME_SIGNATURE)
DatabaseCorruption(NULL);
int nameLen = dbmn->cbName;
char *mod = (char*)HeapAlloc(m_hModHeap,0,nameLen+1);
CopyMemory(mod,DBRead(ofsThis + offsetof(struct DBModuleName,name),nameLen,NULL),nameLen);
mod[nameLen] = 0;
AddToList(mod, nameLen, ofsThis);
ofsThis = dbmn->ofsNext;
dbmn = (struct DBModuleName*)DBRead(ofsThis,sizeof(struct DBModuleName),NULL);
}
return 0;
}
DWORD CDb3Base::FindExistingModuleNameOfs(const char *szName)
{
ModuleName mn = { (char*)szName, 0 };
if (m_lastmn && !strcmp(mn.name, m_lastmn->name))
return m_lastmn->ofs;
int index = m_lMods.getIndex(&mn);
if (index != -1) {
ModuleName *pmn = m_lMods[index];
m_lastmn = pmn;
return pmn->ofs;
}
return 0;
}
//will create the offset if it needs to
DWORD CDb3Base::GetModuleNameOfs(const char *szName)
{
struct DBModuleName dbmn;
int nameLen;
DWORD ofsNew,ofsExisting;
char *mod;
ofsExisting = FindExistingModuleNameOfs(szName);
if (ofsExisting) return ofsExisting;
nameLen = (int)strlen(szName);
//need to create the module name
ofsNew = CreateNewSpace(nameLen+offsetof(struct DBModuleName,name));
dbmn.signature = DBMODULENAME_SIGNATURE;
dbmn.cbName = nameLen;
dbmn.ofsNext = m_dbHeader.ofsFirstModuleName;
m_dbHeader.ofsFirstModuleName = ofsNew;
DBWrite(0,&m_dbHeader,sizeof(m_dbHeader));
DBWrite(ofsNew,&dbmn,offsetof(struct DBModuleName,name));
DBWrite(ofsNew+offsetof(struct DBModuleName,name),(PVOID)szName,nameLen);
DBFlush(0);
//add to cache
mod = (char*)HeapAlloc(m_hModHeap,0,nameLen+1);
strcpy(mod,szName);
AddToList(mod, nameLen, ofsNew);
//quit
return ofsNew;
}
char* CDb3Base::GetModuleNameByOfs(DWORD ofs)
{
if (m_lastmn && m_lastmn->ofs == ofs)
return m_lastmn->name;
ModuleName mn = {NULL, ofs};
int index = m_lOfs.getIndex(&mn);
if (index != -1) {
ModuleName *pmn = m_lOfs[index];
m_lastmn = pmn;
return pmn->name;
}
DatabaseCorruption(NULL);
return NULL;
}
STDMETHODIMP_(BOOL) CDb3Base::EnumModuleNames(DBMODULEENUMPROC pFunc, void *pParam)
{
for (int i = 0; i < m_lMods.getCount(); i++) {
ModuleName *pmn = m_lMods[i];
int ret = pFunc(pmn->name, pmn->ofs, (LPARAM)pParam);
if (ret)
return ret;
}
return 0;
}
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