mm.h

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/*
 * GLX Hardware Device Driver common code
 * Copyright (C) 1999 Wittawat Yamwong
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included
 * in all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
 * KEITH WHITWELL, OR ANY OTHER CONTRIBUTORS BE LIABLE FOR ANY CLAIM, 
 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR 
 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE 
 * OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 */


#ifndef MM_H
#define MM_H


#include "imports.h"


struct mem_block {
   struct mem_block *next, *prev;
   struct mem_block *next_free, *prev_free;
   struct mem_block *heap;
   unsigned ofs;
   unsigned size;
   unsigned free:1;
   unsigned reserved:1;
};



extern struct mem_block *mmInit(unsigned ofs, unsigned size);

extern struct mem_block *mmAllocMem(struct mem_block *heap, unsigned size, 
                                    unsigned align2, unsigned startSearch);

extern int mmFreeMem(struct mem_block *b);

extern struct mem_block *mmFindBlock(struct mem_block *heap, unsigned start);

extern void mmDestroy(struct mem_block *mmInit);

extern void mmDumpMemInfo(const struct mem_block *mmInit);

#endif