diff options
Diffstat (limited to 'plugins/Dbx_kyoto/src/dbmodulechain.cpp')
| -rw-r--r-- | plugins/Dbx_kyoto/src/dbmodulechain.cpp | 127 |
1 files changed, 127 insertions, 0 deletions
diff --git a/plugins/Dbx_kyoto/src/dbmodulechain.cpp b/plugins/Dbx_kyoto/src/dbmodulechain.cpp new file mode 100644 index 0000000000..9416f5305d --- /dev/null +++ b/plugins/Dbx_kyoto/src/dbmodulechain.cpp @@ -0,0 +1,127 @@ +/*
+
+Miranda NG: the free IM client for Microsoft* Windows*
+
+Copyright (ñ) 2012-15 Miranda NG project (http://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 "commonheaders.h"
+
+void CDbxKV::AddToList(char *name, 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 CDbxKV::InitModuleNames(void)
+{
+ m_maxModuleID = 0;
+
+ cursor_ptr cursor(m_dbModules);
+ for (cursor->jump(); cursor->step();) {
+ size_t size;
+ const char *pRec, *pKey = cursor->get(&size, &pRec, &size);
+ DBModuleName *pmod = (DBModuleName*)pRec;
+ if (pmod->dwSignature != DBMODULENAME_SIGNATURE)
+ DatabaseCorruption(NULL);
+
+ char *pVal = (char*)HeapAlloc(m_hModHeap, 0, pmod->cbName+1);
+ memcpy(pVal, pmod->name, pmod->cbName);
+ pVal[pmod->cbName] = 0;
+
+ int moduleId = *(int*)pKey;
+ AddToList(pVal, moduleId);
+
+ if (moduleId > m_maxModuleID)
+ m_maxModuleID = moduleId;
+ delete[] pKey;
+ }
+
+ return 0;
+}
+
+DWORD CDbxKV::FindExistingModuleNameOfs(const char *szName)
+{
+ ModuleName mn = { (char*)szName, 0 };
+
+ int index = m_lMods.getIndex(&mn);
+ if (index != -1)
+ return m_lMods[index]->ofs;
+
+ return 0;
+}
+
+// will create the offset if it needs to
+DWORD CDbxKV::GetModuleNameOfs(const char *szName)
+{
+ DWORD ofsExisting = FindExistingModuleNameOfs(szName);
+ if (ofsExisting)
+ return ofsExisting;
+
+ if (m_bReadOnly)
+ return 0;
+
+ int nameLen = (int)strlen(szName);
+
+ // need to create the module name
+ int newIdx = ++m_maxModuleID;
+ DBModuleName *pmod = (DBModuleName*)_alloca(sizeof(DBModuleName) + nameLen);
+ pmod->dwSignature = DBMODULENAME_SIGNATURE;
+ pmod->cbName = (char)nameLen;
+ strcpy(pmod->name, szName);
+ m_dbModules.set((LPCSTR)&newIdx, sizeof(int), (LPCSTR)pmod, sizeof(DBModuleName) + nameLen);
+
+ // add to cache
+ char *mod = (char*)HeapAlloc(m_hModHeap, 0, nameLen + 1);
+ strcpy(mod, szName);
+ AddToList(mod, newIdx);
+
+ // quit
+ return -1;
+}
+
+char* CDbxKV::GetModuleNameByOfs(DWORD ofs)
+{
+ ModuleName mn = { NULL, ofs };
+ int index = m_lOfs.getIndex(&mn);
+ if (index != -1)
+ return m_lOfs[index]->name;
+
+ return NULL;
+}
+
+STDMETHODIMP_(BOOL) CDbxKV::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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