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https://github.com/moparisthebest/pacman
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544bcbe664
Based on the "depth first search" algorithm, for more infos visit: http://en.wikipedia.org/wiki/Topological_sorting The previous algorithm used by sortbydeps was too slow, and to work around it the number of steps needed to get correct result was reduced greatly. So it produced wrong results in several cases : 1) smoke001.py 2) http://bugs.archlinux.org/task/7229 More here: http://archlinux.org/pipermail/pacman-dev/2007-April/008057.html Signed-off-by: Chantry Xavier <shiningxc@gmail.com> Signed-off-by: Dan McGee <dan@archlinux.org>
69 lines
2.3 KiB
C
69 lines
2.3 KiB
C
/*
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* deps.h
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*
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* Copyright (c) 2002-2006 by Judd Vinet <jvinet@zeroflux.org>
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* Copyright (c) 2005 by Aurelien Foret <orelien@chez.com>
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* Copyright (c) 2006 by Miklos Vajna <vmiklos@frugalware.org>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
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* USA.
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*/
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#ifndef _ALPM_DEPS_H
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#define _ALPM_DEPS_H
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#include "db.h"
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#include "sync.h"
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#include "package.h"
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#include "alpm.h"
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/* Dependency */
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struct __pmdepend_t {
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pmdepmod_t mod;
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char name[PKG_NAME_LEN];
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char version[PKG_VERSION_LEN];
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};
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/* Missing dependency */
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struct __pmdepmissing_t {
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char target[PKG_NAME_LEN];
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pmdeptype_t type;
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pmdepend_t depend;
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};
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/* Graphs */
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struct __pmgraph_t {
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int state; /* 0: untouched, -1: entered, other: leaving time */
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void *data;
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struct __pmgraph_t *parent; /* where did we come from? */
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alpm_list_t *children;
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alpm_list_t *childptr; /* points to a child in children list */
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};
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pmdepmissing_t *_alpm_depmiss_new(const char *target, pmdeptype_t type,
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pmdepmod_t depmod, const char *depname,
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const char *depversion);
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int _alpm_depmiss_isin(pmdepmissing_t *needle, alpm_list_t *haystack);
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alpm_list_t *_alpm_sortbydeps(alpm_list_t *targets, pmtranstype_t mode);
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alpm_list_t *_alpm_checkdeps(pmtrans_t *trans, pmdb_t *db, pmtranstype_t op,
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alpm_list_t *packages);
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alpm_list_t *_alpm_removedeps(pmdb_t *db, alpm_list_t *targs);
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int _alpm_resolvedeps(pmdb_t *local, alpm_list_t *dbs_sync, pmpkg_t *syncpkg,
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alpm_list_t *list, alpm_list_t *trail, pmtrans_t *trans,
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alpm_list_t **data);
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#endif /* _ALPM_DEPS_H */
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/* vim: set ts=2 sw=2 noet: */
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