purebasic/PureBasicIDE/libmba/mba/pool.h at master · tajmone/purebasic · GitHub

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#ifndef MBA_POOL_H
#define MBA_POOL_H

/* pool - a container of recycleable objects
 */

#ifdef __cplusplus
extern "C" {
#endif

#ifndef LIBMBA_API
#ifdef WIN32
# ifdef LIBMBA_EXPORTS
#  define LIBMBA_API  __declspec(dllexport)
# else /* LIBMBA_EXPORTS */
#  define LIBMBA_API  __declspec(dllimport)
# endif /* LIBMBA_EXPORTS */
#else /* WIN32 */
# define LIBMBA_API extern
#endif /* WIN32 */
#endif /* LIBMBA_API */

#include <stddef.h>
#include <mba/stack.h>
#include <mba/iterator.h>
#include <mba/allocator.h>

#define POOL_SIZE_MAX 2040

typedef del_fn rst_fn;

struct pool {
  new_fn object_new;
  del_fn object_del;
  rst_fn object_rst;
  void *context;
  size_t size;
  int flags;
  unsigned char *bitset;
  unsigned int max_size;
  unsigned int unused;
  struct stack stk;
  struct allocator *al;
};

LIBMBA_API int pool_create(struct pool *p,
  unsigned int max_size,
  new_fn object_new,
  del_fn object_del,
  rst_fn object_rst,
  void *context,
  size_t size,
  int undo,
  struct allocator *al);
LIBMBA_API int pool_destroy(struct pool *p);
LIBMBA_API struct pool *pool_new(unsigned int max_size,
  new_fn object_new,
  del_fn object_del,
  rst_fn object_rst,
  void *context,
  size_t size,
  int flags,
  struct allocator *al);
LIBMBA_API int pool_del(struct pool *p);
LIBMBA_API int pool_clean(struct pool *p);

LIBMBA_API void *pool_get(struct pool *p);
LIBMBA_API int pool_release(struct pool *p, void *data);
LIBMBA_API unsigned int pool_size(struct pool *p);
LIBMBA_API unsigned int pool_unused(struct pool *p);
LIBMBA_API void pool_iterate(void *p, iter_t *iter);
LIBMBA_API void *pool_next(void *p, iter_t *iter);

#ifdef __cplusplus
}
#endif

#endif /* MBA_POOL_H */