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- /* Functions to support a pool of allocatable objects
- Copyright (C) 1997-2015 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) ATTRIBUTE_MALLOC;
- extern void pool_free (alloc_pool, void *);
- extern void dump_alloc_pool_statistics (void);
- #endif
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