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src/hoard/src/heaplayers/adapt.h
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00001 // -*- C++ -*-
00002 
00003 /*
00004 
00005   Heap Layers: An Extensible Memory Allocation Infrastructure
00006   
00007   Copyright (C) 2000-2003 by Emery Berger
00008   http://www.cs.umass.edu/~emery
00009   emery@cs.umass.edu
00010   
00011   This program is free software; you can redistribute it and/or modify
00012   it under the terms of the GNU General Public License as published by
00013   the Free Software Foundation; either version 2 of the License, or
00014   (at your option) any later version.
00015   
00016   This program is distributed in the hope that it will be useful,
00017   but WITHOUT ANY WARRANTY; without even the implied warranty of
00018   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00019   GNU General Public License for more details.
00020   
00021   You should have received a copy of the GNU General Public License
00022   along with this program; if not, write to the Free Software
00023   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
00024 
00025 */
00026 
00027 
00028 #ifndef _ADAPT_H_
00029 #define _ADAPT_H_
00030 
00037 namespace HL {
00038 
00039   template <class Dictionary, class SuperHeap>
00040   class AdaptHeap : public SuperHeap {
00041   public:
00042 
00044     inline void * malloc (const size_t) {
00045       void * ptr = (Entry *) dict.get();
00046       return ptr;
00047     }
00048 
00050     inline void free (void * ptr) {
00051       Entry * entry = (Entry *) ptr;
00052       dict.insert (entry);
00053     }
00054 
00056     inline int remove (void * ptr) {
00057       dict.remove ((Entry *) ptr);
00058       return 1;
00059     }
00060 
00062     inline void clear (void) {
00063       Entry * ptr;
00064       while ((ptr = (Entry *) dict.get()) != NULL) {
00065         SuperHeap::free (ptr);
00066       }
00067       dict.clear();
00068       SuperHeap::clear();
00069     }
00070 
00071 
00072   private:
00073 
00075     Dictionary dict;
00076 
00077     class Entry : public Dictionary::Entry {};
00078   };
00079 
00080 }
00081 
00082 #endif // _ADAPT_H_
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