diff options
Diffstat (limited to 'plugins/Db3x/database.cpp')
| -rw-r--r-- | plugins/Db3x/database.cpp | 159 |
1 files changed, 159 insertions, 0 deletions
diff --git a/plugins/Db3x/database.cpp b/plugins/Db3x/database.cpp new file mode 100644 index 0000000000..66148ecffe --- /dev/null +++ b/plugins/Db3x/database.cpp @@ -0,0 +1,159 @@ +/*
+
+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"
+#include "database.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)
+{
+ 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)
+{
+ PBYTE buf;
+ log2("deletespace %d@%08x",bytes,ofs);
+ dbHeader.slackSpace+=bytes;
+ DBWrite(0,&dbHeader,sizeof(dbHeader));
+ buf=(PBYTE)mir_alloc(bytes);
+ memset(buf,0,bytes);
+ DBWrite(ofs,buf,bytes);
+ mir_free(buf);
+}
+
+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;
+
+void __cdecl dbpanic(void *arg)
+{
+ 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);
+ return;
+}
+
+void DatabaseCorruption(void)
+{
+ int kill=0;
+
+ EnterCriticalSection(&csDbAccess);
+ if (DatabaseCorrupted==0) {
+ DatabaseCorrupted++;
+ kill++;
+ } 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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