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/* Functions to support a pool of allocatable objects
Copyright (C) 1997-2013 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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