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# 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__