csutil/rootedhiercache.h Source File (Crystal Space 2.0 Public API Reference)

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csutil/rootedhiercache.h

    00001 /*
    00002     Copyright (C) 2008 by Frank Richter
    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_UTIL_ROOTEDHIERCACHE_H__
    00020 #define __CS_UTIL_ROOTEDHIERCACHE_H__
    00021
    00022 #include "csextern.h"
    00023 #include "iutil/cache.h"
    00024 #include "iutil/hiercache.h"
    00025 #include "csutil/csstring.h"
    00026 #include "csutil/scf_implementation.h"
    00027
    00028 struct iObjectRegistry;
    00029 struct iVFS;
    00030
    00031 namespace CS
    00032 {
    00033 namespace Utility
    00034 {
    00042   class CS_CRYSTALSPACE_EXPORT RootedHierarchicalCache :
    00043     public scfImplementation1<RootedHierarchicalCache, iHierarchicalCache>
    00044   {
    00045   private:
    00046     csRef<iHierarchicalCache> wrappedCache;
    00047     csString rootdir;
    00048
    00049     csString AdjustPath (const char* org);
    00050   public:
    00056     RootedHierarchicalCache (iHierarchicalCache* cache, const char* root)
    00057      : scfImplementationType (this), wrappedCache (cache), rootdir (root) {}
    00058
    00059     virtual ~RootedHierarchicalCache () {}
    00060
    00063     virtual bool CacheData (const void* data, size_t size,
    00064       const char* path)
    00065     { return wrappedCache->CacheData (data, size, AdjustPath (path)); }
    00066     virtual csPtr<iDataBuffer> ReadCache (const char* path)
    00067     { return wrappedCache->ReadCache (AdjustPath (path)); }
    00068     virtual bool ClearCache (const char* path)
    00069     { return wrappedCache->ClearCache (AdjustPath (path)); }
    00070     virtual void Flush ()
    00071     { wrappedCache->Flush (); }
    00072     virtual csPtr<iHierarchicalCache> GetRootedCache (const char* base);
    00073     virtual csPtr<iStringArray> GetSubItems (const char* path)
    00074     { return wrappedCache->GetSubItems (AdjustPath (path)); }
    00075     virtual iHierarchicalCache* GetTopCache()
    00076     { return wrappedCache->GetTopCache(); }
    00077     virtual bool IsCacheWriteable() const
    00078     { return wrappedCache->IsCacheWriteable(); }
    00080   };
    00081 } // namespace Utility
    00082 } // namespace CS
    00083
    00084 #endif // __CS_UTIL_ROOTEDHIERCACHE_H__
    00085