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4 * Copyright (C) 2000-2002 Ximian, Inc.
5 * Copyright (C) 2005 SUSE Linux Products GmbH
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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 {
75 sat::detail::CPool *_satPool;
76 sat::detail::CSolver *_satSolver;
77 sat::detail::CQueue _jobQueue;
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:1; // repair errors in rpm dependency graph
93 bool _allowdowngrade:1; // allow to downgrade installed solvable
94 bool _allowarchchange:1; // allow to change architecture of installed solvables
95 bool _allowvendorchange:1; // allow to change vendor of installed solvables
96 bool _allowuninstall:1; // allow removal of installed solvables
97 bool _updatesystem:1; // update
98 bool _noupdateprovide:1; // true: update packages needs not to provide old package
99 bool _dosplitprovides:1; // true: consider legacy split provides
100 bool _onlyRequires:1; // true: consider required packages only
101 bool _ignorealreadyrecommended:1; // true: ignore recommended packages that were already recommended by the installed packages
103 bool _distupgrade_removeunsupported:1;
104 bool _dup_allowdowngrade:1; // dup mode: allow to downgrade installed solvable
105 bool _dup_allownamechange:1; // dup mode: allow to change name of installed solvable
106 bool _dup_allowarchchange:1; // dup mode: allow to change architecture of installed solvables
107 bool _dup_allowvendorchange:1; // dup mode: allow to change vendor of installed solvables
108 bool _solveSrcPackages:1; // false: generate no job rule for source packages selected in the pool
109 bool _cleandepsOnRemove:1; // whether removing a package should also remove no longer needed requirements
112 // ---------------------------------- methods
113 std::string SATprobleminfoString (Id problem, std::string &detail, Id &ignoreId);
114 void resetItemTransaction (PoolItem item);
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());
123 // set locks for the solver
125 // set requirements for a running system
126 void setSystemRequirements();
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);
139 SATResolver (const ResPool & pool, sat::detail::CPool *satPool);
140 virtual ~SATResolver();
142 // ---------------------------------- I/O
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); }
148 ResPool pool (void) const;
149 void setPool (const ResPool & pool) { _pool = pool; }
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
157 // solver run with the given request queue
158 bool resolveQueue(const SolverQueueItemList &requestQueue,
159 const PoolItemList & weakItems
161 // searching for new packages
164 ResolverProblemList problems ();
165 void applySolutions (const ProblemSolutionList &solutions);
167 void addPoolItemToInstall (PoolItem item);
168 void addPoolItemsToInstallFromList (PoolItemList & rl);
170 void addPoolItemToLock (PoolItem item);
171 void addPoolItemToKeep (PoolItem item);
173 void addPoolItemToRemove (PoolItem item);
174 void addPoolItemsToRemoveFromList (PoolItemList & rl);
176 bool fixsystem () const {return _fixsystem;}
177 void setFixsystem ( const bool fixsystem) { _fixsystem = fixsystem;}
179 bool ignorealreadyrecommended () const {return _ignorealreadyrecommended;}
180 void setIgnorealreadyrecommended ( const bool ignorealreadyrecommended) { _ignorealreadyrecommended = ignorealreadyrecommended;}
182 bool distupgrade () const {return _distupgrade;}
183 void setDistupgrade ( const bool distupgrade) { _distupgrade = distupgrade;}
185 bool distupgrade_removeunsupported () const {return _distupgrade_removeunsupported;}
186 void setDistupgrade_removeunsupported ( const bool distupgrade_removeunsupported) { _distupgrade_removeunsupported = distupgrade_removeunsupported;}
188 bool allowdowngrade () const {return _allowdowngrade;}
189 void setAllowdowngrade ( const bool allowdowngrade) { _allowdowngrade = allowdowngrade;}
191 bool allowarchchange () const {return _allowarchchange;}
192 void setAllowarchchange ( const bool allowarchchange) { _allowarchchange = allowarchchange;}
194 bool allowvendorchange () const {return _allowvendorchange;}
195 void setAllowvendorchange ( const bool allowvendorchange) { _allowvendorchange = allowvendorchange;}
197 bool allowuninstall () const {return _allowuninstall;}
198 void setAllowuninstall ( const bool allowuninstall) { _allowuninstall = allowuninstall;}
200 bool updatesystem () const {return _updatesystem;}
201 void setUpdatesystem ( const bool updatesystem) { _updatesystem = updatesystem;}
203 bool noupdateprovide () const {return _noupdateprovide;}
204 void setNoupdateprovide ( const bool noupdateprovide) { _noupdateprovide = noupdateprovide;}
206 bool dosplitprovides () const {return _dosplitprovides;}
207 void setDosplitprovides ( const bool dosplitprovides) { _dosplitprovides = dosplitprovides;}
209 bool onlyRequires () const {return _onlyRequires;}
210 void setOnlyRequires ( const bool onlyRequires) { _onlyRequires = onlyRequires;}
212 bool solveSrcPackages() const { return _solveSrcPackages; }
213 void setSolveSrcPackages( bool state_r ) { _solveSrcPackages = state_r; }
215 bool cleandepsOnRemove() const { return _cleandepsOnRemove; }
216 void setCleandepsOnRemove( bool state_r ) { _cleandepsOnRemove = state_r; }
218 PoolItemList problematicUpdateItems( void ) const { return _problem_items; }
220 PoolItemList resultItemsToInstall () { return _result_items_to_install; }
221 PoolItemList resultItemsToRemove () { return _result_items_to_remove; }
222 PoolItemList problematicUpdateItems() { return _problem_items; }
224 sat::StringQueue autoInstalled() const;
225 sat::StringQueue userInstalled() const;
228 ///////////////////////////////////////////////////////////////////
229 };// namespace detail
230 /////////////////////////////////////////////////////////////////////
231 /////////////////////////////////////////////////////////////////////
232 };// namespace solver
233 ///////////////////////////////////////////////////////////////////////
234 ///////////////////////////////////////////////////////////////////////
236 /////////////////////////////////////////////////////////////////////////
238 #endif // ZYPP_SOLVER_DETAIL_SAT_RESOLVER_H