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5 * Copyright (C) 2005 SUSE Linux Products GmbH
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22 #ifndef ZYPP_SOLVER_DETAIL_RESOLVER_H
23 #define ZYPP_SOLVER_DETAIL_RESOLVER_H
30 #include "zypp/base/ReferenceCounted.h"
31 #include "zypp/base/PtrTypes.h"
33 #include "zypp/ResPool.h"
34 #include "zypp/TriBool.h"
35 #include "zypp/base/SerialNumber.h"
37 #include "zypp/solver/detail/Types.h"
38 #include "zypp/solver/detail/SolverQueueItem.h"
40 #include "zypp/ProblemTypes.h"
41 #include "zypp/ResolverProblem.h"
42 #include "zypp/ProblemSolution.h"
43 #include "zypp/UpgradeStatistics.h"
44 #include "zypp/Capabilities.h"
45 #include "zypp/Capability.h"
48 /////////////////////////////////////////////////////////////////////////
50 { ///////////////////////////////////////////////////////////////////////
51 ///////////////////////////////////////////////////////////////////////
53 { /////////////////////////////////////////////////////////////////////
54 /////////////////////////////////////////////////////////////////////
56 { ///////////////////////////////////////////////////////////////////
61 ///////////////////////////////////////////////////////////////////
63 // CLASS NAME : ItemCapKind
69 Capability cap; //Capability which has triggerd this selection
70 Dep capKind; //Kind of that capability
71 PoolItem item; //Item which has triggered this selection
72 bool initialInstallation; //This item has triggered the installation
73 //Not already fullfilled requierement only.
75 ItemCapKind() : capKind(Dep::PROVIDES) {}
76 ItemCapKind( PoolItem i, Capability c, Dep k, bool initial)
80 , initialInstallation( initial )
83 typedef std::multimap<PoolItem,ItemCapKind> ItemCapKindMap;
84 typedef std::list<ItemCapKind> ItemCapKindList;
87 ///////////////////////////////////////////////////////////////////
89 // CLASS NAME : Resolver
91 class Resolver : public base::ReferenceCounted, private base::NonCopyable {
95 SATResolver *_satResolver;
96 SerialNumberWatcher _poolchanged;
99 CapabilitySet _extra_requires;
100 CapabilitySet _extra_conflicts;
102 // Regard dependencies of the item weak onl
103 PoolItemList _addWeak;
105 bool _forceResolve; // remove items which are conflicts with others or
106 // have unfulfilled requirements.
107 // This behaviour is favourited by ZMD
108 bool _upgradeMode; // Resolver has been called with doUpgrade
109 bool _updateMode; // Resolver has been called with doUpdate
110 bool _verifying; // The system will be checked
111 TriBool _onlyRequires; // do install required resolvables only
112 // no recommended resolvables, language
113 // packages, hardware packages (modalias)
115 bool _ignorealreadyrecommended; //ignore recommended packages that have already been recommended by the installed packages
117 // Additional QueueItems which has to be regarded by the solver
118 // This will be used e.g. by solution actions
119 solver::detail::SolverQueueItemList _removed_queue_items;
120 solver::detail::SolverQueueItemList _added_queue_items;
122 // Additional information about the solverrun
123 ItemCapKindMap _isInstalledBy;
124 ItemCapKindMap _installs;
125 ItemCapKindMap _satifiedByInstalled;
126 ItemCapKindMap _installedSatisfied;
129 void collectResolverInfo (void);
131 // Unmaintained packages which does not fit to the updated system
132 // (broken dependencies) will be deleted.
133 // returns true if solving was successful
134 bool checkUnmaintainedItems ();
140 Resolver (const ResPool & pool);
143 // ---------------------------------- I/O
145 virtual std::ostream & dumpOn( std::ostream & str ) const;
146 friend std::ostream& operator<<(std::ostream& str, const Resolver & obj)
147 { return obj.dumpOn (str); }
149 // ---------------------------------- methods
151 ResPool pool (void) const;
152 void setPool (const ResPool & pool) { _pool = pool; }
154 void addExtraRequire (const Capability & capability);
155 void removeExtraRequire (const Capability & capability);
156 void addExtraConflict (const Capability & capability);
157 void removeExtraConflict (const Capability & capability);
159 void removeQueueItem (const SolverQueueItem_Ptr item);
160 void addQueueItem (const SolverQueueItem_Ptr item);
162 const CapabilitySet extraRequires () { return _extra_requires; }
163 const CapabilitySet extraConflicts () { return _extra_conflicts; }
165 void addWeak (const PoolItem item);
167 void setForceResolve (const bool force) { _forceResolve = force; }
168 bool forceResolve() { return _forceResolve; }
170 void setIgnorealreadyrecommended (const bool ignorealreadyrecommended)
171 { _ignorealreadyrecommended = ignorealreadyrecommended; }
172 bool ignorealreadyrecommended() { return _ignorealreadyrecommended; }
174 void setOnlyRequires (const TriBool state)
175 { _onlyRequires = state; }
176 TriBool onlyRequires () { return _onlyRequires; }
178 bool verifySystem ();
180 bool resolveQueue(solver::detail::SolverQueueItemList & queue);
183 bool doUpgrade( zypp::UpgradeStatistics & opt_stats_r );
184 PoolItemList problematicUpdateItems( void ) const;
186 bool isUpgradeMode(){ return _upgradeMode;}; // Resolver has been called with doUpgrade
187 bool isUpdateMode(){ return _updateMode;}; // Resolver has been called with doUpdate
188 bool isVerifyingMode(){ return _verifying;}; // The system will be checked
190 ResolverProblemList problems () const;
191 void applySolutions (const ProblemSolutionList &solutions);
193 // reset all SOLVER transaction in pool
196 void reset (bool keepExtras = false );
198 bool testing(void) const { return _testing; }
199 void setTesting( bool testing ) { _testing = testing; }
201 // Get more information about the solverrun
202 // Which item will be installed by another item or triggers an item for
204 const ItemCapKindList isInstalledBy (const PoolItem item);
205 const ItemCapKindList installs (const PoolItem item);
206 const ItemCapKindList satifiedByInstalled (const PoolItem item);
207 const ItemCapKindList installedSatisfied (const PoolItem item);
211 ///////////////////////////////////////////////////////////////////
212 };// namespace detail
213 /////////////////////////////////////////////////////////////////////
214 /////////////////////////////////////////////////////////////////////
215 };// namespace solver
216 ///////////////////////////////////////////////////////////////////////
217 ///////////////////////////////////////////////////////////////////////
219 /////////////////////////////////////////////////////////////////////////
221 #endif // ZYPP_SOLVER_DETAIL_RESOLVER_H