| /* |
| * libdpkg - Debian packaging suite library routines |
| * pkg-array.c - primitives for pkg array handling |
| * |
| * Copyright © 1995,1996 Ian Jackson <ian@chiark.greenend.org.uk> |
| * Copyright © 2009 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 <http://www.gnu.org/licenses/>. |
| */ |
| |
| #include <config.h> |
| #include <compat.h> |
| |
| #include <assert.h> |
| #include <string.h> |
| #include <stdlib.h> |
| |
| #include <dpkg/dpkg.h> |
| #include <dpkg/dpkg-db.h> |
| #include <dpkg/pkg-array.h> |
| |
| /** |
| * Initialize a package array from the package database. |
| * |
| * @param a The array to initialize. |
| */ |
| void |
| pkg_array_init_from_db(struct pkg_array *a) |
| { |
| struct pkgiterator *it; |
| struct pkginfo *pkg; |
| int i; |
| |
| a->n_pkgs = pkg_db_count(); |
| a->pkgs = m_malloc(sizeof(a->pkgs[0]) * a->n_pkgs); |
| |
| it = pkg_db_iter_new(); |
| for (i = 0; (pkg = pkg_db_iter_next(it)); i++) |
| a->pkgs[i] = pkg; |
| pkg_db_iter_free(it); |
| |
| assert(i == a->n_pkgs); |
| } |
| |
| /** |
| * Sort a package array. |
| * |
| * @param a The array to sort. |
| * @param pkg_sort The function to sort the array. |
| */ |
| void |
| pkg_array_sort(struct pkg_array *a, pkg_sorter_func *pkg_sort) |
| { |
| qsort(a->pkgs, a->n_pkgs, sizeof(a->pkgs[0]), pkg_sort); |
| } |
| |
| /** |
| * Destroy a package array. |
| * |
| * Frees the allocated memory and resets the members. |
| * |
| * @param a The array to destroy. |
| */ |
| void |
| pkg_array_destroy(struct pkg_array *a) |
| { |
| a->n_pkgs = 0; |
| free(a->pkgs); |
| a->pkgs = NULL; |
| } |