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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
    00031 struct iObjectRegistry;
    00032
    00036 struct csPluginLoadRec
    00037 {
    00038   char* Tag;
    00039   char* ClassID;
    00040   csRef<iBase> plugin;
    00041
    00042   csPluginLoadRec (const char* iTag, const char* iClassID)
    00043   { Tag = csStrNew (iTag); ClassID = csStrNew (iClassID); }
    00044   ~csPluginLoadRec ()
    00045   { delete [] ClassID; delete [] Tag; }
    00046 };
    00047
    00051 class CS_CRYSTALSPACE_EXPORT csPluginList : public csPDelArray<csPluginLoadRec>
    00052 {
    00053 public:
    00054   bool Sort (iObjectRegistry* object_reg);
    00055 private:
    00056   bool RecurseSort (iObjectRegistry*, size_t row, size_t* order, size_t* loop,
    00057     bool *matrix);
    00058 };
    00059
    00064 class CS_CRYSTALSPACE_EXPORT csPluginLoader
    00065 {
    00066   friend class csPluginList;
    00067
    00068 private:
    00069   // The object registry.
    00070   iObjectRegistry* object_reg;
    00071   // Requested plugins.
    00072   csPluginList requested_plugins;
    00073
    00074 public:
    00076   csPluginLoader (iObjectRegistry* object_reg);
    00078   virtual ~csPluginLoader ();
    00079
    00090   void RequestPlugin (const char* pluginName, const char* tagName);
    00091
    00093   bool LoadPlugins ();
    00094 };
    00095
    00096 #endif // __CS_PLUGLDR_H__
    00097