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mempool.h
Go to the documentation of this file.00001 /* 00002 Copyright (C) 2005 by Eric Sunshine <sunshine@sunshineco.com> 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_CSUTIL_MEMPOOL_H__ 00020 #define __CS_CSUTIL_MEMPOOL_H__ 00021 00026 #include "cssysdef.h" 00027 #include "csextern.h" 00028 #include "csutil/array.h" 00029 00030 // Hack: Work around problems caused by #defining 'new'. 00031 #if defined(CS_EXTENSIVE_MEMDEBUG) || defined(CS_MEMORY_TRACKER) 00032 # undef new 00033 #endif 00034 #include <new> 00035 00058 class CS_CRYSTALSPACE_EXPORT csMemoryPool 00059 { 00060 private: 00062 csArray<uint8*> blocks; 00064 size_t remaining; 00066 size_t granularity; 00067 00068 csMemoryPool(csMemoryPool const&); // Illegal; unimplemented. 00069 void operator=(csMemoryPool const&); // Illegal; unimplemented. 00070 00071 public: 00083 csMemoryPool(size_t gran = 4096) : remaining(0), granularity(gran) {} 00085 ~csMemoryPool() { Empty(); } 00086 00095 void* Alloc(size_t); 00101 void Empty(); 00107 void const* Store(void const*, size_t); 00114 char const* Store(char const*); 00115 }; 00116 00136 inline void* operator new(size_t n, csMemoryPool& p) 00137 { return p.Alloc(n); } 00138 inline void* operator new(size_t n, csMemoryPool* p) 00139 { return p->Alloc(n); } 00144 #endif // __CS_CSUTIL_MEMPOOL_H__
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