diff options
| author | Kirill Volinsky <mataes2007@gmail.com> | 2012-05-18 22:02:50 +0000 |
|---|---|---|
| committer | Kirill Volinsky <mataes2007@gmail.com> | 2012-05-18 22:02:50 +0000 |
| commit | f920ef497f3299ae24fe783ce03bdd93b419f764 (patch) | |
| tree | bdaa9197c08d29ab141a6adfdd6cc0a68ddd3996 /plugins/Db3x/dbmodulechain.c | |
| parent | 6c3b0571f0678da0512069869afaa284c054377e (diff) | |
plugins folders renaming
git-svn-id: http://svn.miranda-ng.org/main/trunk@60 1316c22d-e87f-b044-9b9b-93d7a3e3ba9c
Diffstat (limited to 'plugins/Db3x/dbmodulechain.c')
| -rw-r--r-- | plugins/Db3x/dbmodulechain.c | 132 |
1 files changed, 132 insertions, 0 deletions
diff --git a/plugins/Db3x/dbmodulechain.c b/plugins/Db3x/dbmodulechain.c new file mode 100644 index 0000000000..8b78b4dffa --- /dev/null +++ b/plugins/Db3x/dbmodulechain.c @@ -0,0 +1,132 @@ +/*
+
+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"
+
+extern struct DBHeader dbHeader;
+
+static INT_PTR EnumModuleNames(WPARAM wParam,LPARAM lParam);
+
+struct ModuleName {
+ char *name;
+ DWORD hash;
+ DWORD ofs;
+};
+static struct ModuleName *moduleName;
+static int moduleNameCount;
+
+int InitModuleNames(void)
+{
+ struct DBModuleName *dbmn;
+ DWORD ofsThis,ofsNext;
+ int nameLen;
+
+ moduleNameCount=0;
+ moduleName=NULL;
+ ofsThis=dbHeader.ofsFirstModuleName;
+ dbmn=(struct DBModuleName*)DBRead(ofsThis,sizeof(struct DBModuleName),NULL);
+ while(ofsThis) {
+ if(dbmn->signature!=DBMODULENAME_SIGNATURE) DatabaseCorruption();
+ moduleName=(struct ModuleName*)mir_realloc(moduleName,sizeof(struct ModuleName)*(moduleNameCount+1));
+ moduleName[moduleNameCount].ofs=ofsThis;
+ moduleName[moduleNameCount].hash=dbmn->cbName; //very very simple hash so far
+ moduleName[moduleNameCount].name=(char*)mir_alloc(dbmn->cbName+1);
+ ofsNext=dbmn->ofsNext;
+ nameLen=dbmn->cbName;
+ CopyMemory(moduleName[moduleNameCount].name,DBRead(ofsThis+offsetof(struct DBModuleName,name),nameLen,NULL),nameLen);
+ moduleName[moduleNameCount].name[nameLen]=0;
+ moduleNameCount++;
+ ofsThis=ofsNext;
+ dbmn=(struct DBModuleName*)DBRead(ofsThis,sizeof(struct DBModuleName),NULL);
+ }
+ CreateServiceFunction(MS_DB_MODULES_ENUM,EnumModuleNames);
+ return 0;
+}
+
+void UninitModuleNames(void)
+{
+ int i;
+ for(i=0;i<moduleNameCount;i++) mir_free(moduleName[i].name);
+ if(moduleNameCount) mir_free(moduleName);
+}
+
+static DWORD FindExistingModuleNameOfs(const char *szName,int nameLen)
+{
+ int i;
+ for(i=0;i<moduleNameCount;i++)
+ if(moduleName[i].hash==(DWORD)nameLen && !strcmp(moduleName[i].name,szName)) return moduleName[i].ofs;
+ return 0;
+}
+
+//will create the offset if it needs to
+DWORD GetModuleNameOfs(const char *szName)
+{
+ struct DBModuleName dbmn;
+ int nameLen=(int)strlen(szName);
+ DWORD ofsNew,ofsExisting;
+
+ ofsExisting=FindExistingModuleNameOfs(szName,nameLen);
+ if(ofsExisting) return ofsExisting;
+ //need to create the module name
+ ofsNew=CreateNewSpace(nameLen+offsetof(struct DBModuleName,name));
+ dbmn.signature=DBMODULENAME_SIGNATURE;
+ dbmn.cbName=nameLen;
+ dbmn.ofsNext=dbHeader.ofsFirstModuleName;
+ dbHeader.ofsFirstModuleName=ofsNew;
+ DBWrite(0,&dbHeader,sizeof(dbHeader));
+ DBWrite(ofsNew,&dbmn,offsetof(struct DBModuleName,name));
+ DBWrite(ofsNew+offsetof(struct DBModuleName,name),(PVOID)szName,nameLen);
+ DBFlush(0);
+ //add to cache
+ moduleName=(struct ModuleName*)mir_realloc(moduleName,sizeof(struct ModuleName)*(moduleNameCount+1));
+ moduleName[moduleNameCount].ofs=ofsNew;
+ moduleName[moduleNameCount].hash=nameLen; //very very simple hash so far
+ moduleName[moduleNameCount].name=(char*)mir_alloc(nameLen+1);
+ strcpy(moduleName[moduleNameCount].name,szName);
+ moduleNameCount++;
+ //quit
+ return ofsNew;
+}
+
+//it's OK that this is a bit slow - it's rarely used
+char *GetModuleNameByOfs(DWORD ofs)
+{
+ int i;
+
+ for(i=0;i<moduleNameCount;i++)
+ if(moduleName[i].ofs==ofs) return moduleName[i].name;
+ DatabaseCorruption();
+ return NULL;
+}
+
+static INT_PTR EnumModuleNames(WPARAM wParam,LPARAM lParam)
+{
+ int i;
+ INT_PTR ret;
+ for(i=0;i<moduleNameCount;i++) {
+ ret=((DBMODULEENUMPROC)lParam)(moduleName[i].name,moduleName[i].ofs,wParam);
+ if (ret) return ret;
+ }
+ return 0;
+}
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