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57 lines
1.9 KiB
57 lines
1.9 KiB
/**
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* \file This holds all stufff related our memory managent.
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* I try the best as far as I can to reduce memory fragmentation
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* and unneccessary calls to alloc and free.
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*
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* To achive this I try an approach described here as "Quick Fit".
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* http://www.flounder.com/memory_allocation.htm
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*
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* The basic idea is to keep allocated memory segments and don't free
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* them again. Instead I will put them in a tree indexed by their size.
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* To get new memory I first have a look in the tree if there is
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* a fitting memory segment. Fitting mean, larger or exactly the size
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* I need. If there is one, use it. If not create a new one using
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* usual malloc approach.
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* I won't split the reagions at all because most likely they will be
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* free soon again. This way I might waste some memory, so I have to
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* keep an eye on this.
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*
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* Right now I don't build an upper limit for allocation. The limit
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* still is the system memory itself.
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*
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* This is not implemented as a class because it will be used in the
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* process of object creation.
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*
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* \author Georg Hopp
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*
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* \copyright
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* Copyright © 2012 Georg Hopp
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <stdlib.h>
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#include "utils/memory.h"
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void
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ffree(void ** data)
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{
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if (NULL != *data) {
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free(*data);
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*data = NULL;
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}
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}
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// vim: set ts=4 sw=4:
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