dev/c/liblist/queue.h

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/* queue.h -- present queue abstraction with list primitives.
*
* Last edited: Tue Jul 28 15:34:15 1992 by bcs (Bradley C. Spatz) on wasp
*
* Copyright (C) 1992, Bradley C. Spatz, bcs@ufl.edu
*
* This program 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 2 of the License, or
* (at your option) any later version.
*
* This program 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 this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#ifndef _LIBLIST_QUEUE_H
#define _LIBLIST_QUEUE_H
#include <list.h>
/* define queue objects in terms of list */
#define queue_t list_t
#define queue_element_t list_element_t
/* backwards compatibility */
#define QUEUE LIST
#define QUEUE_ELEMENT LIST_ELEMENT
/* Now map the queue functions onto the list primitives. The current
* element pointer will always point to the end of the list, which is
* where we add new elements. We remove elements from the front.
* With this model, we map onto the list primitives directly.
*/
#define q_init() list_init()
#define q_enqueue(queue, data, bytes) list_insert_after(queue, data, bytes)
#define q_dequeue(queue) list_remove_front(queue)
#define q_front(queue) list_front(queue)
#define q_size(queue) list_size(queue)
#define q_empty(queue) list_empty(queue)
#define q_free(queue, dealloc) list_free(queue, dealloc)
/* Define the deallocation constants. */
#define QUEUE_DEALLOC LIST_DEALLOC
#define QUEUE_NODEALLOC LIST_NODEALLOC
#endif /* _LIBLIST_QUEUE_H */