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/*
* libdpkg - Debian packaging suite library routines
* pkg-queue.h - primitives for pkg queue handling
*
* Copyright © 2010 Guillem Jover <guillem@debian.org>
*
* This 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 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, see <https://www.gnu.org/licenses/>.
*/
#ifndef DPKG_PKG_QUEUE_H
#define DPKG_PKG_QUEUE_H
#include <dpkg/macros.h>
#include <dpkg/pkg-list.h>
DPKG_BEGIN_DECLS
/**
* @defgroup pkg-queue Package queues
* @ingroup dpkg-public
* @{
*/
struct pkg_queue {
struct pkg_list *head, *tail;
int length;
};
/**
* Constant initializer for a package queue.
*/
#define PKG_QUEUE_INIT \
{ .head = NULL, .tail = NULL, .length = 0 }
/**
* Compound literal for a package queue.
*/
#define PKG_QUEUE_OBJECT \
(struct pkg_queue)PKG_QUEUE_INIT
void pkg_queue_init(struct pkg_queue *queue);
void pkg_queue_destroy(struct pkg_queue *queue);
int pkg_queue_is_empty(struct pkg_queue *queue);
struct pkg_list *pkg_queue_push(struct pkg_queue *queue, struct pkginfo *pkg);
struct pkginfo *pkg_queue_pop(struct pkg_queue *queue);
/** @} */
DPKG_END_DECLS
#endif /* DPKG_PKG_QUEUE_H */
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