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4 * Copyright (C) 2000-2002 Ximian, Inc.
5 * Copyright (C) 2005 SUSE Linux Products GmbH
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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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22 #ifndef ZYPP_SOLVER_DETAIL_RESOLVER_H
23 #define ZYPP_SOLVER_DETAIL_RESOLVER_H
24 #ifndef ZYPP_USE_RESOLVER_INTERNALS
25 #error Do not directly include this file!
33 #include "zypp/ResPool.h"
34 #include "zypp/TriBool.h"
35 #include "zypp/base/SerialNumber.h"
36 #include "zypp/base/NonCopyable.h"
38 #include "zypp/ProblemTypes.h"
39 #include "zypp/ResolverProblem.h"
40 #include "zypp/ProblemSolution.h"
41 #include "zypp/Capabilities.h"
42 #include "zypp/Capability.h"
44 /////////////////////////////////////////////////////////////////////////
51 ///////////////////////////////////////////////////////////////////////
54 /////////////////////////////////////////////////////////////////////
58 typedef std::list<PoolItem> PoolItemList;
59 typedef std::set<PoolItem> PoolItemSet;
61 ///////////////////////////////////////////////////////////////////
63 // CLASS NAME : Resolver
64 /** A mid layer class we should remove
65 * \todo Merge this and class SATResolver. Logic and date are horribly
66 * distributed between this and SATResolver. Either SATResolver becomes
67 * a pure wrapper adapting the libsolv C interface to fit our needs, and
68 * all the solver logic and problem handling goes here; or completely merge
71 class Resolver : private base::NonCopyable
73 typedef std::multimap<PoolItem,ItemCapKind> ItemCapKindMap;
76 SATResolver *_satResolver;
77 SerialNumberWatcher _poolchanged;
79 CapabilitySet _extra_requires;
80 CapabilitySet _extra_conflicts;
81 std::set<Repository> _upgradeRepos;
83 // Regard dependencies of the item weak onl
84 PoolItemList _addWeak;
86 /** \name Solver flags */
88 bool _upgradeMode; // Resolver has been called with doUpgrade
89 bool _updateMode; // Resolver has been called with doUpdate
90 bool _verifying; // The system will be checked
91 bool _onlyRequires; // do install required resolvables only
92 // no recommended resolvables, language
93 // packages, hardware packages (modalias)
94 bool _solveSrcPackages; // whether to generate solver jobs for selected source packges.
95 bool _cleandepsOnRemove; // whether removing a package should also remove no longer needed requirements
97 bool _ignoreAlreadyRecommended; //ignore recommended packages that have already been recommended by the installed packages
100 // Additional QueueItems which has to be regarded by the solver
101 // This will be used e.g. by solution actions
102 solver::detail::SolverQueueItemList _removed_queue_items;
103 solver::detail::SolverQueueItemList _added_queue_items;
105 // Additional information about the solverrun
106 ItemCapKindMap _isInstalledBy;
107 ItemCapKindMap _installs;
108 ItemCapKindMap _satifiedByInstalled;
109 ItemCapKindMap _installedSatisfied;
112 void collectResolverInfo();
114 // Unmaintained packages which does not fit to the updated system
115 // (broken dependencies) will be deleted.
116 // returns true if solving was successful
117 bool checkUnmaintainedItems ();
123 Resolver( const ResPool & pool );
126 // ---------------------------------- I/O
128 std::ostream & dumpOn( std::ostream & str ) const;
130 friend std::ostream& operator<<( std::ostream& str, const Resolver & obj )
131 { return obj.dumpOn (str); }
133 // ---------------------------------- methods
135 ResPool pool() const;
136 void setPool( const ResPool & pool ) { _pool = pool; }
138 void addUpgradeRepo( Repository repo_r ) { if ( repo_r && ! repo_r.isSystemRepo() ) _upgradeRepos.insert( repo_r ); }
139 bool upgradingRepo( Repository repo_r ) const { return( _upgradeRepos.find( repo_r ) != _upgradeRepos.end() ); }
140 void removeUpgradeRepo( Repository repo_r ) { _upgradeRepos.erase( repo_r ); }
141 void removeUpgradeRepos() { _upgradeRepos.clear(); }
142 const std::set<Repository> & upgradeRepos() const { return _upgradeRepos; }
144 void addExtraRequire( const Capability & capability );
145 void removeExtraRequire( const Capability & capability );
146 void addExtraConflict( const Capability & capability );
147 void removeExtraConflict( const Capability & capability );
149 void removeQueueItem( SolverQueueItem_Ptr item );
150 void addQueueItem( SolverQueueItem_Ptr item );
152 CapabilitySet extraRequires() const { return _extra_requires; }
153 CapabilitySet extraConflicts() const { return _extra_conflicts; }
155 void addWeak( const PoolItem & item );
159 bool resolveQueue( SolverQueueItemList & queue );
163 PoolItemList problematicUpdateItems() const;
165 /** \name Solver flags */
167 bool ignoreAlreadyRecommended() const { return _ignoreAlreadyRecommended; }
168 void setIgnoreAlreadyRecommended( bool yesno_r ) { _ignoreAlreadyRecommended = yesno_r; }
170 bool onlyRequires () const { return _onlyRequires; }
171 void setOnlyRequires( TriBool state_r );
173 bool isUpgradeMode() const { return _upgradeMode; }// Resolver has been called with doUpgrade
174 void setUpgradeMode( bool yesno_r ) { _upgradeMode = yesno_r; }
176 bool isUpdateMode() const { return _updateMode; } // Resolver has been called with doUpdate
177 void setUpdateMode( bool yesno_r ) { _updateMode = yesno_r; }
179 bool isVerifyingMode() const { return _verifying; } // The system will be checked
180 void setVerifyingMode( TriBool state_r ) { _verifying = indeterminate(state_r) ? false : bool(state_r); }
182 bool solveSrcPackages() const { return _solveSrcPackages; }
183 void setSolveSrcPackages( TriBool state_r ) { _solveSrcPackages = indeterminate(state_r) ? false : bool(state_r); }
185 bool cleandepsOnRemove() const { return _cleandepsOnRemove; }
186 void setCleandepsOnRemove( TriBool state_r );
189 #define ZOLV_FLAG_TRIBOOL( ZSETTER, ZGETTER ) \
190 void ZSETTER( TriBool state_r ); \
191 bool ZGETTER() const; \
193 ZOLV_FLAG_TRIBOOL( setForceResolve, forceResolve )
195 ZOLV_FLAG_TRIBOOL( setAllowDowngrade, allowDowngrade )
196 ZOLV_FLAG_TRIBOOL( setAllowNameChange, allowNameChange )
197 ZOLV_FLAG_TRIBOOL( setAllowArchChange, allowArchChange )
198 ZOLV_FLAG_TRIBOOL( setAllowVendorChange, allowVendorChange )
200 ZOLV_FLAG_TRIBOOL( dupSetAllowDowngrade, dupAllowDowngrade )
201 ZOLV_FLAG_TRIBOOL( dupSetAllowNameChange, dupAllowNameChange )
202 ZOLV_FLAG_TRIBOOL( dupSetAllowArchChange, dupAllowArchChange )
203 ZOLV_FLAG_TRIBOOL( dupSetAllowVendorChange, dupAllowVendorChange )
205 #undef ZOLV_FLAG_TRIBOOL
207 ResolverProblemList problems() const;
209 void applySolutions( const ProblemSolutionList & solutions );
210 bool applySolution( const ProblemSolution & solution );
212 // Return the Transaction computed by the last solver run.
213 sat::Transaction getTransaction();
215 // reset all SOLVER transaction in pool
218 void reset( bool keepExtras = false );
220 // Get more information about the solverrun
221 // Which item will be installed by another item or triggers an item for
223 ItemCapKindList isInstalledBy( const PoolItem & item );
224 ItemCapKindList installs( const PoolItem & item );
225 ItemCapKindList satifiedByInstalled (const PoolItem & item );
226 ItemCapKindList installedSatisfied( const PoolItem & item );
230 ///////////////////////////////////////////////////////////////////
231 };// namespace detail
232 /////////////////////////////////////////////////////////////////////
233 /////////////////////////////////////////////////////////////////////
234 };// namespace solver
235 ///////////////////////////////////////////////////////////////////////
236 ///////////////////////////////////////////////////////////////////////
238 /////////////////////////////////////////////////////////////////////////
239 #endif // ZYPP_USE_RESOLVER_INTERNALS
240 #endif // ZYPP_SOLVER_DETAIL_RESOLVER_H