1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 4 -*- */
4 * Copyright (C) 2000-2002 Ximian, Inc.
5 * Copyright (C) 2005 SUSE Linux Products GmbH
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8 * modify it under the terms of the GNU General Public License,
9 * version 2, as published by the Free Software Foundation.
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13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * General Public License for more details.
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18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
22 #ifndef ZYPP_SOLVER_DETAIL_SAT_RESOLVER_H
23 #define ZYPP_SOLVER_DETAIL_SAT_RESOLVER_H
27 #include <solv/solver.h>
28 #include <solv/pool.h>
36 #include "zypp/base/ReferenceCounted.h"
37 #include "zypp/base/PtrTypes.h"
38 #include "zypp/ResPool.h"
39 #include "zypp/base/SerialNumber.h"
40 #include "zypp/ProblemTypes.h"
41 #include "zypp/ResolverProblem.h"
42 #include "zypp/ProblemSolution.h"
43 #include "zypp/Capability.h"
44 #include "zypp/solver/detail/SolverQueueItem.h"
46 /////////////////////////////////////////////////////////////////////////
48 { ///////////////////////////////////////////////////////////////////////
55 ///////////////////////////////////////////////////////////////////////
57 { /////////////////////////////////////////////////////////////////////
58 /////////////////////////////////////////////////////////////////////
60 { ///////////////////////////////////////////////////////////////////
63 ///////////////////////////////////////////////////////////////////
65 // CLASS NAME : SATResolver
67 * \todo The way solver options are passed as individual booleans from Resolver
68 * via solver::detail::Resolver to SATResolver is pedestrian and error prone.
69 * Introdce a dedicated solver option structure which is passed down as a whole.
71 class SATResolver : public base::ReferenceCounted, private base::NonCopyable {
79 // list of problematic items (orphaned)
80 PoolItemList _problem_items;
82 // list populated by calls to addPoolItemTo*()
83 PoolItemList _items_to_install;
84 PoolItemList _items_to_remove;
85 PoolItemList _items_to_lock;
86 PoolItemList _items_to_keep;
89 PoolItemList _result_items_to_install;
90 PoolItemList _result_items_to_remove;
92 bool _fixsystem; // repair errors in rpm dependency graph
93 bool _allowdowngrade; // allow to downgrade installed solvable
94 bool _allowarchchange; // allow to change architecture of installed solvables
95 bool _allowvendorchange; // allow to change vendor of installed solvables
96 bool _allowuninstall; // allow removal of installed solvables
97 bool _updatesystem; // update
98 bool _noupdateprovide; // true: update packages needs not to provide old package
99 bool _dosplitprovides; // true: consider legacy split provides
100 bool _onlyRequires; // true: consider required packages only
101 bool _ignorealreadyrecommended; // true: ignore recommended packages that were already recommended by the installed packages
103 bool _distupgrade_removeunsupported;
104 bool _solveSrcPackages; // false: generate no job rule for source packages selected in the pool
105 bool _cleandepsOnRemove; // whether removing a package should also remove no longer needed requirements
107 // ---------------------------------- methods
108 std::string SATprobleminfoString (Id problem, std::string &detail, Id &ignoreId);
109 void resetItemTransaction (PoolItem item);
111 // Create a SAT solver and reset solver selection in the pool (Collecting
112 void solverInit(const PoolItemList & weakItems);
113 // common solver run with the _jobQueue; Save results back to pool
114 bool solving(const CapabilitySet & requires_caps = CapabilitySet(),
115 const CapabilitySet & conflict_caps = CapabilitySet());
118 // set locks for the solver
120 // set requirements for a running system
121 void setSystemRequirements();
123 // Checking if this solvable/item has a buddy which reflect the real
124 // user visible description of an item
125 // e.g. The release package has a buddy to the concerning product item.
126 // This user want's the message "Product foo conflicts with product bar" and
127 // NOT "package release-foo conflicts with package release-bar"
128 // So these functions return the concerning buddy (e.g. product item)
129 sat::Solvable mapSolvable (const Id &id);
130 PoolItem mapItem (const PoolItem &item);
134 SATResolver (const ResPool & pool, Pool *SATPool);
135 virtual ~SATResolver();
137 // ---------------------------------- I/O
139 virtual std::ostream & dumpOn( std::ostream & str ) const;
140 friend std::ostream& operator<<(std::ostream& str, const SATResolver & obj)
141 { return obj.dumpOn (str); }
143 ResPool pool (void) const;
144 void setPool (const ResPool & pool) { _pool = pool; }
146 // solver run with pool selected items
147 bool resolvePool(const CapabilitySet & requires_caps,
148 const CapabilitySet & conflict_caps,
149 const PoolItemList & weakItems,
150 const std::set<Repository> & upgradeRepos
152 // solver run with the given request queue
153 bool resolveQueue(const SolverQueueItemList &requestQueue,
154 const PoolItemList & weakItems
156 // searching for new packages
159 ResolverProblemList problems ();
160 void applySolutions (const ProblemSolutionList &solutions);
162 void addPoolItemToInstall (PoolItem item);
163 void addPoolItemsToInstallFromList (PoolItemList & rl);
165 void addPoolItemToLock (PoolItem item);
166 void addPoolItemToKeep (PoolItem item);
168 void addPoolItemToRemove (PoolItem item);
169 void addPoolItemsToRemoveFromList (PoolItemList & rl);
171 bool fixsystem () const {return _fixsystem;}
172 void setFixsystem ( const bool fixsystem) { _fixsystem = fixsystem;}
174 bool ignorealreadyrecommended () const {return _ignorealreadyrecommended;}
175 void setIgnorealreadyrecommended ( const bool ignorealreadyrecommended) { _ignorealreadyrecommended = ignorealreadyrecommended;}
177 bool distupgrade () const {return _distupgrade;}
178 void setDistupgrade ( const bool distupgrade) { _distupgrade = distupgrade;}
180 bool distupgrade_removeunsupported () const {return _distupgrade_removeunsupported;}
181 void setDistupgrade_removeunsupported ( const bool distupgrade_removeunsupported) { _distupgrade_removeunsupported = distupgrade_removeunsupported;}
183 bool allowdowngrade () const {return _allowdowngrade;}
184 void setAllowdowngrade ( const bool allowdowngrade) { _allowdowngrade = allowdowngrade;}
186 bool allowarchchange () const {return _allowarchchange;}
187 void setAllowarchchange ( const bool allowarchchange) { _allowarchchange = allowarchchange;}
189 bool allowvendorchange () const {return _allowvendorchange;}
190 void setAllowvendorchange ( const bool allowvendorchange) { _allowvendorchange = allowvendorchange;}
192 bool allowuninstall () const {return _allowuninstall;}
193 void setAllowuninstall ( const bool allowuninstall) { _allowuninstall = allowuninstall;}
195 bool updatesystem () const {return _updatesystem;}
196 void setUpdatesystem ( const bool updatesystem) { _updatesystem = updatesystem;}
198 bool noupdateprovide () const {return _noupdateprovide;}
199 void setNoupdateprovide ( const bool noupdateprovide) { _noupdateprovide = noupdateprovide;}
201 bool dosplitprovides () const {return _dosplitprovides;}
202 void setDosplitprovides ( const bool dosplitprovides) { _dosplitprovides = dosplitprovides;}
204 bool onlyRequires () const {return _onlyRequires;}
205 void setOnlyRequires ( const bool onlyRequires) { _onlyRequires = onlyRequires;}
207 bool solveSrcPackages() const { return _solveSrcPackages; }
208 void setSolveSrcPackages( bool state_r ) { _solveSrcPackages = state_r; }
210 bool cleandepsOnRemove() const { return _cleandepsOnRemove; }
211 void setCleandepsOnRemove( bool state_r ) { _cleandepsOnRemove = state_r; }
213 PoolItemList problematicUpdateItems( void ) const { return _problem_items; }
215 PoolItemList resultItemsToInstall () { return _result_items_to_install; }
216 PoolItemList resultItemsToRemove () { return _result_items_to_remove; }
217 PoolItemList problematicUpdateItems() { return _problem_items; }
219 sat::StringQueue autoInstalled() const;
220 sat::StringQueue userInstalled() const;
223 ///////////////////////////////////////////////////////////////////
224 };// namespace detail
225 /////////////////////////////////////////////////////////////////////
226 /////////////////////////////////////////////////////////////////////
227 };// namespace solver
228 ///////////////////////////////////////////////////////////////////////
229 ///////////////////////////////////////////////////////////////////////
231 /////////////////////////////////////////////////////////////////////////
233 #endif // ZYPP_SOLVER_DETAIL_SAT_RESOLVER_H