gcc/alloc-pool.h

   1 /* Functions to support a pool of allocatable objects
   2    Copyright (C) 1997, 1998, 1999, 2000, 2001, 2003, 2004
   3    Free Software Foundation, Inc.
   4    Contributed by Daniel Berlin <dan@cgsoftware.com>
   5
   6 This file is part of GCC.
   7
   8 GCC is free software; you can redistribute it and/or modify
   9 it under the terms of the GNU General Public License as published by
  10 the Free Software Foundation; either version 2, or (at your option)
  11 any later version.
  12
  13 GCC is distributed in the hope that it will be useful,
  14 but WITHOUT ANY WARRANTY; without even the implied warranty of
  15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16 GNU General Public License for more details.
  17
  18 You should have received a copy of the GNU General Public License
  19 along with GCC; see the file COPYING.  If not, write to
  20 the Free Software Foundation, 51 Franklin Street, Fifth Floor,
  21 Boston, MA 02110-1301, USA.  */
  22 #ifndef ALLOC_POOL_H
  23 #define ALLOC_POOL_H
  24
  25 typedef unsigned long ALLOC_POOL_ID_TYPE;
  26
  27 typedef struct alloc_pool_list_def
  28 {
  29   struct alloc_pool_list_def *next;
  30 }
  31  *alloc_pool_list;
  32
  33 typedef struct alloc_pool_def
  34 {
  35   const char *name;
  36 #ifdef ENABLE_CHECKING
  37   ALLOC_POOL_ID_TYPE id;
  38 #endif
  39   size_t elts_per_block;
  40   alloc_pool_list free_list;
  41   size_t elts_allocated;
  42   size_t elts_free;
  43   size_t blocks_allocated;
  44   alloc_pool_list block_list;
  45   size_t block_size;
  46   size_t elt_size;
  47 }
  48  *alloc_pool;
  49
  50 extern alloc_pool create_alloc_pool (const char *, size_t, size_t);
  51 extern void free_alloc_pool (alloc_pool);
  52 extern void free_alloc_pool_if_empty (alloc_pool *);
  53 extern void *pool_alloc (alloc_pool);
  54 extern void pool_free (alloc_pool, void *);
  55 extern void dump_alloc_pool_statistics (void);
  56 #endif