memory_stack.h

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/* This library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Lesser General Public
   License as published by the Free Software Foundation; either
   version 2.1 of the License, or (at your option) any later version.

   This library is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   Lesser General Public License for more details.

   You should have received a copy of the GNU Lesser General Public
   License along with this library; if not, write to the Free Software
   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
*/

#ifndef _GAN_MEMORY_STACK_H
#define _GAN_MEMORY_STACK_H

#include <gandalf/common/misc_defs.h>
#include <stddef.h> /* defines size_t */

#ifdef __cplusplus
extern "C" {
#endif

typedef double Gan_BigType;

typedef struct Gan_MemoryStack
{
   Gan_BigType **block_ptr, *last_free;
   size_t tm_bsize, tm_total;
   int current_tm_block, next_start, alloc_tm_blocks;
   int *block_end, max_tm_blocks;
   Gan_Bool squeeze_OK;

   Gan_Bool alloc; /* whether this structure was dynamically allocated */
} Gan_MemoryStack;

 Gan_MemoryStack *gan_memory_stack_form ( Gan_MemoryStack *ms,
                                         int nblocks, size_t bsize );
 void *gan_ms_malloc ( Gan_MemoryStack *ms, size_t size );
 void  gan_ms_free ( Gan_MemoryStack *ms, void *ptr );
 void  gan_ms_free_va ( Gan_MemoryStack *ms, void *ptr, ... );
 void  gan_memory_stack_free ( Gan_MemoryStack *ms );
 void  gan_memory_stack_clean ( Gan_MemoryStack *ms );
 size_t gan_memory_stack_total ( Gan_MemoryStack *ms );

 Gan_MemoryStack *gan_memory_stack_alloc ( int nblocks, size_t bsize );

 void *gan_ms_malloc_object ( Gan_MemoryStack *ms, TYPE obj_type );

 void *gan_ms_malloc_array ( Gan_MemoryStack *ms, TYPE obj_type, size_t size );

#ifdef __cplusplus
}
#endif

#endif /* #ifndef _GAN_MEMORY_STACK_H */

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