libzypp 17.31.0
SATResolver.h
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1/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 4 -*- */
2/* SATResolver.h
3 *
4 * Copyright (C) 2000-2002 Ximian, Inc.
5 * Copyright (C) 2005 SUSE Linux Products GmbH
6 *
7 * This program is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU General Public License,
9 * version 2, as published by the Free Software Foundation.
10 *
11 * This program is distributed in the hope that it will be useful, but
12 * WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
19 * 02111-1307, USA.
20 */
21
22#ifndef ZYPP_SOLVER_DETAIL_SAT_RESOLVER_H
23#define ZYPP_SOLVER_DETAIL_SAT_RESOLVER_H
24#ifndef ZYPP_USE_RESOLVER_INTERNALS
25#error Do not directly include this file!
26#else
27extern "C"
28{
29#include <solv/solver.h>
30#include <solv/pool.h>
31}
32
33#include <iosfwd>
34#include <list>
35#include <map>
36#include <string>
37
38#include <zypp/solver/Types.h>
39
41namespace zypp
42{
43
44 namespace sat
45 {
46 class Transaction;
47 }
48
50 namespace solver
51 {
53 namespace detail
54 {
55
56
58//
59// CLASS NAME : SATResolver
65class SATResolver : public base::ReferenceCounted, private base::NonCopyable, private sat::detail::PoolMember
66{
67
68 private:
69 ResPool _pool;
70 sat::detail::CPool *_satPool;
71 sat::detail::CSolver *_satSolver;
72 sat::detail::CQueue _jobQueue;
73
74 // list of problematic items (orphaned)
75 PoolItemList _problem_items;
76
77 // list populated by calls to addPoolItemTo*()
78 PoolItemList _items_to_install;
79 PoolItemList _items_to_remove;
80 PoolItemList _items_to_lock;
81 PoolItemList _items_to_keep;
82
83 // solve results
84 PoolItemList _result_items_to_install;
85 PoolItemList _result_items_to_remove;
86 public:
87 ResolverFocus _focus; // The resolver's general attitude
88
89 bool _fixsystem:1; // repair errors in rpm dependency graph
90 bool _allowdowngrade:1; // allow one to downgrade installed solvable
91 bool _allownamechange:1; // allow one to change name of installed solvable
92 bool _allowarchchange:1; // allow one to change architecture of installed solvables
93 bool _allowvendorchange:1; // allow one to change vendor of installed solvables
94 bool _allowuninstall:1; // allow removal of installed solvables
95 bool _updatesystem:1; // update
96 bool _noupdateprovide:1; // true: update packages needs not to provide old package
97 bool _dosplitprovides:1; // true: consider legacy split provides
98 bool _onlyRequires:1; // true: consider required packages only (but recommended namespaces)
99 bool _ignorealreadyrecommended:1; // true: ignore recommended packages that were already recommended by the installed packages
100 bool _distupgrade:1;
101 bool _distupgrade_removeunsupported:1;
102 bool _dup_allowdowngrade:1; // dup mode: allow one to downgrade installed solvable
103 bool _dup_allownamechange:1; // dup mode: allow one to change name of installed solvable
104 bool _dup_allowarchchange:1; // dup mode: allow one to change architecture of installed solvables
105 bool _dup_allowvendorchange:1; // dup mode: allow one to change vendor of installed solvables
106 bool _solveSrcPackages:1; // false: generate no job rule for source packages selected in the pool
107 bool _cleandepsOnRemove:1; // whether removing a package should also remove no longer needed requirements
108
109 private:
110 // ---------------------------------- methods
111 std::string SATprobleminfoString (Id problem, std::string &detail, Id &ignoreId);
112 std::string SATproblemRuleInfoString (Id rule, std::string &detail, Id &ignoreId);
113 std::vector<std::string> SATgetCompleteProblemInfoStrings ( Id problem );
114 void resetItemTransaction (PoolItem item);
115
116 // Create a SAT solver and reset solver selection in the pool (Collecting
117 void solverInit(const PoolItemList & weakItems);
118 // common solver run with the _jobQueue; Save results back to pool
119 bool solving(const CapabilitySet & requires_caps = CapabilitySet(),
120 const CapabilitySet & conflict_caps = CapabilitySet());
121 // cleanup solver
122 void solverEnd();
123 // set locks for the solver
124 void setLocks();
125 // set requirements for a running system
126 void setSystemRequirements();
127
128 // Checking if this solvable/item has a buddy which reflect the real
129 // user visible description of an item
130 // e.g. The release package has a buddy to the concerning product item.
131 // This user want's the message "Product foo conflicts with product bar" and
132 // NOT "package release-foo conflicts with package release-bar"
133 // So these functions return the concerning buddy (e.g. product item)
134 sat::Solvable mapSolvable (const Id &id);
135 PoolItem mapItem (const PoolItem &item);
136
137 public:
138
139 SATResolver (const ResPool & pool, sat::detail::CPool *satPool);
140 virtual ~SATResolver();
141
142 // ---------------------------------- I/O
143
144 virtual std::ostream & dumpOn( std::ostream & str ) const;
145 friend std::ostream& operator<<(std::ostream& str, const SATResolver & obj)
146 { return obj.dumpOn (str); }
147
148 ResPool pool (void) const;
149 void setPool (const ResPool & pool) { _pool = pool; }
150
151 // solver run with pool selected items
152 bool resolvePool(const CapabilitySet & requires_caps,
153 const CapabilitySet & conflict_caps,
154 const PoolItemList & weakItems,
155 const std::set<Repository> & upgradeRepos
156 );
157 // solver run with the given request queue
158 bool resolveQueue(const SolverQueueItemList &requestQueue,
159 const PoolItemList & weakItems
160 );
161 // searching for new packages
162 void doUpdate();
163
164 ResolverProblemList problems ();
165 void applySolutions (const ProblemSolutionList &solutions);
166
167 bool fixsystem () const {return _fixsystem;}
168 void setFixsystem ( const bool fixsystem) { _fixsystem = fixsystem;}
169
170 bool ignorealreadyrecommended () const {return _ignorealreadyrecommended;}
171 void setIgnorealreadyrecommended ( const bool ignorealreadyrecommended) { _ignorealreadyrecommended = ignorealreadyrecommended;}
172
173 bool distupgrade () const {return _distupgrade;}
174 void setDistupgrade ( const bool distupgrade) { _distupgrade = distupgrade;}
175
176 bool distupgrade_removeunsupported () const {return _distupgrade_removeunsupported;}
177 void setDistupgrade_removeunsupported ( const bool distupgrade_removeunsupported) { _distupgrade_removeunsupported = distupgrade_removeunsupported;}
178
179 bool allowdowngrade () const {return _allowdowngrade;}
180 void setAllowdowngrade ( const bool allowdowngrade) { _allowdowngrade = allowdowngrade;}
181
182 bool allowarchchange () const {return _allowarchchange;}
183 void setAllowarchchange ( const bool allowarchchange) { _allowarchchange = allowarchchange;}
184
185 bool allowvendorchange () const {return _allowvendorchange;}
186 void setAllowvendorchange ( const bool allowvendorchange) { _allowvendorchange = allowvendorchange;}
187
188 bool allowuninstall () const {return _allowuninstall;}
189 void setAllowuninstall ( const bool allowuninstall) { _allowuninstall = allowuninstall;}
190
191 bool updatesystem () const {return _updatesystem;}
192 void setUpdatesystem ( const bool updatesystem) { _updatesystem = updatesystem;}
193
194 bool noupdateprovide () const {return _noupdateprovide;}
195 void setNoupdateprovide ( const bool noupdateprovide) { _noupdateprovide = noupdateprovide;}
196
197 bool dosplitprovides () const {return _dosplitprovides;}
198 void setDosplitprovides ( const bool dosplitprovides) { _dosplitprovides = dosplitprovides;}
199
200 bool onlyRequires () const {return _onlyRequires;}
201 void setOnlyRequires ( const bool onlyRequires) { _onlyRequires = onlyRequires;}
202
203 bool solveSrcPackages() const { return _solveSrcPackages; }
204 void setSolveSrcPackages( bool state_r ) { _solveSrcPackages = state_r; }
205
206 bool cleandepsOnRemove() const { return _cleandepsOnRemove; }
207 void setCleandepsOnRemove( bool state_r ) { _cleandepsOnRemove = state_r; }
208
209 PoolItemList problematicUpdateItems( void ) const { return _problem_items; }
210 PoolItemList problematicUpdateItems() { return _problem_items; }
211
212 PoolItemList resultItemsToInstall () { return _result_items_to_install; }
213 PoolItemList resultItemsToRemove () { return _result_items_to_remove; }
214
215 sat::StringQueue autoInstalled() const;
216 sat::StringQueue userInstalled() const;
217
218public:
220 sat::detail::CSolver * get() const { return _satSolver; }
221};
222
224 };// namespace detail
227 };// namespace solver
230};// namespace zypp
232#endif // ZYPP_USE_RESOLVER_INTERNALS
233#endif // ZYPP_SOLVER_DETAIL_SAT_RESOLVER_H
String related utilities and Regular expression matching.
boost::noncopyable NonCopyable
Ensure derived classes cannot be copied.
Definition: NonCopyable.h:26
::s_Solver CSolver
Wrapped libsolv C data type exposed as backdoor.
Definition: PoolMember.h:65
::s_Queue CQueue
Wrapped libsolv C data type exposed as backdoor.
Definition: PoolMember.h:62
::s_Pool CPool
Wrapped libsolv C data type exposed as backdoor.
Definition: PoolMember.h:61
Queue StringQueue
Queue with String ids.
Definition: Queue.h:27
std::list< SolverQueueItem_Ptr > SolverQueueItemList
Definition: Types.h:45
std::ostream & operator<<(std::ostream &os, const SolutionActionList &actionlist)
Easy-to use interface to the ZYPP dependency resolver.
Definition: CodePitfalls.doc:2
std::unordered_set< Capability > CapabilitySet
Definition: Capability.h:33
ResolverFocus
The resolver's general attitude.
Definition: ResolverFocus.h:22
std::ostream & dumpOn(std::ostream &str, const Capability &obj)
Definition: Capability.cc:567
std::list< ResolverProblem_Ptr > ResolverProblemList
Definition: ProblemTypes.h:46
std::list< ProblemSolution_Ptr > ProblemSolutionList
Definition: ProblemTypes.h:43