view gcc/alloc-pool.h @ 9:77e2b8dfacca gcc-4.4.5

update it from 4.4.3 to 4.5.0
author ryoma <>
date Fri, 12 Feb 2010 23:39:51 +0900
parents a06113de4d67
children 04ced10e8804
line wrap: on
line source

/* 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 <>

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
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
<>.  */
#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;

typedef struct alloc_pool_def
  const char *name;
  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;

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);