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nulcache.h
Go to the documentation of this file.00001 /* 00002 Copyright (C) 2002 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_NULCACHE_H__ 00020 #define __CS_UTIL_NULCACHE_H__ 00021 00025 #include "csextern.h" 00026 #include "iutil/cache.h" 00027 00031 class CS_CRYSTALSPACE_EXPORT csNullCacheManager : public iCacheManager 00032 { 00033 public: 00037 csNullCacheManager (); 00038 00039 virtual ~csNullCacheManager (); 00040 00041 SCF_DECLARE_IBASE; 00042 00043 virtual void SetReadOnly (bool) { } 00044 virtual bool IsReadOnly () const { return true; } 00045 00049 virtual void SetCurrentType (const char* type); 00053 virtual const char* GetCurrentType () const { return 0; } 00057 virtual void SetCurrentScope (const char* scope); 00061 virtual const char* GetCurrentScope () const { return 0; } 00065 virtual bool CacheData (const void* data, size_t size, 00066 const char* type, const char* scope, uint32 id); 00070 virtual csPtr<iDataBuffer> ReadCache (const char* type, const char* scope, 00071 uint32 id); 00075 virtual bool ClearCache (const char* type = 0, const char* scope = 0, 00076 const uint32* id = 0); 00080 virtual void Flush () { } 00081 }; 00082 00083 #endif // __CS_UTIL_NULCACHE_H__ 00084
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