CrystalSpace

Public API Reference

csutil/mempool.h

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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 #include "csutil/custom_new_disable.h"
00031 
00054 class CS_CRYSTALSPACE_EXPORT csMemoryPool
00055 {
00056 private:
00058   csArray<uint8*> blocks;
00060   size_t remaining;
00062   size_t granularity;
00063 
00064   csMemoryPool(csMemoryPool const&);   // Illegal; unimplemented.
00065   void operator=(csMemoryPool const&); // Illegal; unimplemented.
00066 
00067 public:
00079   csMemoryPool(size_t gran = 4096) : remaining(0), granularity(gran) {}
00081   ~csMemoryPool() { Empty(); }
00082 
00091   void* Alloc(size_t);
00097   void Empty();
00103   void const* Store(void const*, size_t);
00110   char const* Store(char const*);
00111 };
00112 
00132 inline void* operator new(size_t n, csMemoryPool& p)
00133 { return p.Alloc(n); }
00134 inline void* operator new(size_t n, csMemoryPool* p)
00135 { return p->Alloc(n); }
00136 inline void operator delete(void* /*n*/, csMemoryPool& /*p*/) { }
00137 inline void operator delete(void* /*n*/, csMemoryPool* /*p*/) { }
00142 #include "csutil/custom_new_enable.h"
00143 
00144 #endif //  __CS_CSUTIL_MEMPOOL_H__

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