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# csutil/plugldr.h

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    00001 /*
    00002     Copyright (C) 1998-2001 by Jorrit Tyberghein
    00003
    00004     This library is free software; you can redistribute it and/or
    00005     modify it under the terms of the GNU Library General Public
    00006     License as published by the Free Software Foundation; either
    00007     version 2 of the License, or (at your option) any later version.
    00008
    00009     This library is distributed in the hope that it will be useful,
    00010     but WITHOUT ANY WARRANTY; without even the implied warranty of
    00011     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
    00012     Library General Public License for more details.
    00013
    00014     You should have received a copy of the GNU Library General Public
    00015     License along with this library; if not, write to the Free
    00016     Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
    00017 */
    00018
    00019 #ifndef __CS_PLUGLDR_H__
    00020 #define __CS_PLUGLDR_H__
    00021
    00026 #include "csextern.h"
    00027 #include "csutil/parray.h"
    00028 #include "csutil/ref.h"
    00029 #include "csutil/scf.h"
    00030 #include "csutil/util.h"
    00031
    00032 struct iObjectRegistry;
    00033
    00037 struct csPluginLoadRec
    00038 {
    00039   char* Tag;
    00040   char* ClassID;
    00041   csRef<iBase> plugin;
    00042
    00043   csPluginLoadRec (const char* iTag, const char* iClassID)
    00044   { Tag = csStrNew (iTag); ClassID = csStrNew (iClassID); }
    00045   ~csPluginLoadRec ()
    00046   { delete [] ClassID; delete [] Tag; }
    00047 };
    00048
    00052 class CS_CRYSTALSPACE_EXPORT csPluginList : public csPDelArray<csPluginLoadRec>
    00053 {
    00054 public:
    00055   bool Sort (iObjectRegistry* object_reg);
    00056 private:
    00057   bool RecurseSort (iObjectRegistry*, size_t row, size_t* order, size_t* loop,
    00058     bool *matrix);
    00059 };
    00060
    00065 class CS_CRYSTALSPACE_EXPORT csPluginLoader
    00066 {
    00067   friend class csPluginList;
    00068
    00069 private:
    00070   // The object registry.
    00071   iObjectRegistry* object_reg;
    00072   // Requested plugins.
    00073   csPluginList requested_plugins;
    00074
    00075 public:
    00077   csPluginLoader (iObjectRegistry* object_reg);
    00079   virtual ~csPluginLoader ();
    00080
    00091   void RequestPlugin (const char* pluginName, const char* tagName);
    00092
    00094   bool LoadPlugins ();
    00095 };
    00096
    00097 #endif // __CS_PLUGLDR_H__
    00098