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# csutil/vfscache.h

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    00001 /*
    00002     Copyright (C) 2002 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_UTIL_VFSCACHE_H__
    00020 #define __CS_UTIL_VFSCACHE_H__
    00021
    00025 #include "csextern.h"
    00026 #include "iutil/cache.h"
    00027 #include "csutil/csstring.h"
    00028 #include "csutil/scf_implementation.h"
    00029
    00030 struct iObjectRegistry;
    00031 struct iVFS;
    00032
    00036 class CS_CRYSTALSPACE_EXPORT csVfsCacheManager :
    00037   public scfImplementation1<csVfsCacheManager, iCacheManager>
    00038 {
    00039 private:
    00040   iObjectRegistry* object_reg;
    00041   char* vfsdir;
    00042   csRef<iVFS> vfs;
    00043   char* current_type;
    00044   char* current_scope;
    00045   bool readonly;
    00046
    00047   iVFS* GetVFS ();
    00048
    00049   void CacheName (csStringFast<512>& buf, const char* type, const char* scope,
    00050         uint32 id);
    00051
    00052 public:
    00057   csVfsCacheManager (iObjectRegistry* object_reg, const char* vfsdir);
    00058
    00059   virtual ~csVfsCacheManager ();
    00060
    00061
    00062   virtual void SetReadOnly (bool ro) { readonly = ro; }
    00063   virtual bool IsReadOnly () const { return readonly; }
    00064
    00068   virtual void SetCurrentType (const char* type);
    00072   virtual const char* GetCurrentType () const { return current_type; }
    00076   virtual void SetCurrentScope (const char* scope);
    00080   virtual const char* GetCurrentScope () const { return current_scope; }
    00084   virtual bool CacheData (const void* data, size_t size,
    00085         const char* type, const char* scope, uint32 id);
    00090   virtual csPtr<iDataBuffer> ReadCache (const char* type, const char* scope,
    00091         uint32 id);
    00095   virtual bool ClearCache (const char* type = 0, const char* scope = 0,
    00096         const uint32* id = 0);
    00097
    00101   virtual void Flush ();
    00102 };
    00103
    00104 #endif // __CS_UTIL_VFSCACHE_H__
    00105