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/* Functions to support a pool of allocatable objects

   Copyright (C) 1997, 1998, 1999, 2000, 2001, 2003, 2004, 2007

   Free Software Foundation, Inc.

   Contributed by Daniel Berlin <dan@cgsoftware.com>

This file is part of GCC.

GCC is free software; you can redistribute it and/or modify

it under the terms of the GNU General Public License as published by

the Free Software Foundation; either version 3, or (at your option)

any later version.

GCC 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 General Public License for more details.

You should have received a copy of the GNU General Public License

along with GCC; see the file COPYING3.  If not see

<http://www.gnu.org/licenses/>.  */

#ifndef ALLOC_POOL_H

#define ALLOC_POOL_H

typedef unsigned long ALLOC_POOL_ID_TYPE;

typedef struct alloc_pool_list_def

{

  struct alloc_pool_list_def *next;

}

 *alloc_pool_list;

typedef struct alloc_pool_def

{

  const char *name;

#ifdef ENABLE_CHECKING

  ALLOC_POOL_ID_TYPE id;

#endif

  size_t elts_per_block;

  /* These are the elements that have been allocated at least once and freed.  */

  alloc_pool_list returned_free_list;

  /* These are the elements that have not yet been allocated out of

     the last block obtained from XNEWVEC.  */

  char* virgin_free_list;

  /* The number of elements in the virgin_free_list that can be

     allocated before needing another block.  */

  size_t virgin_elts_remaining;

  size_t elts_allocated;

  size_t elts_free;

  size_t blocks_allocated;

  alloc_pool_list block_list;

  size_t block_size;

  size_t elt_size;

}

 *alloc_pool;

extern alloc_pool create_alloc_pool (const char *, size_t, size_t);

extern void free_alloc_pool (alloc_pool);

extern void empty_alloc_pool (alloc_pool);

extern void free_alloc_pool_if_empty (alloc_pool *);

extern void *pool_alloc (alloc_pool);

extern void pool_free (alloc_pool, void *);

extern void dump_alloc_pool_statistics (void);

#endif