/* * Copyright (c) 2007, Novell Inc. * * This program is licensed under the BSD license, read LICENSE.BSD * for further information */ /* * solver.h * */ #ifndef LIBSOLV_SOLVER_H #define LIBSOLV_SOLVER_H #include "pooltypes.h" #include "pool.h" #include "repo.h" #include "queue.h" #include "bitmap.h" #include "transaction.h" #include "rules.h" #include "problems.h" #ifdef __cplusplus extern "C" { #endif struct _Solver { Pool *pool; /* back pointer to pool */ Queue job; /* copy of the job we're solving */ int (*solution_callback)(struct _Solver *solv, void *data); void *solution_callback_data; int pooljobcnt; /* number of pooljob entries in job queue */ #ifdef LIBSOLV_INTERNAL Repo *installed; /* copy of pool->installed */ /* list of rules, ordered * pkg rules first, then features, updates, jobs, learnt * see start/end offsets below */ Rule *rules; /* all rules */ Id nrules; /* [Offset] index of the last rule */ Queue ruleassertions; /* Queue of all assertion rules */ /* start/end offset for rule 'areas' */ Id pkgrules_end; /* [Offset] dep rules end */ Id featurerules; /* feature rules start/end */ Id featurerules_end; Id updaterules; /* policy rules, e.g. keep packages installed or update. All literals > 0 */ Id updaterules_end; Id jobrules; /* user rules */ Id jobrules_end; Id infarchrules; /* inferior arch rules */ Id infarchrules_end; Id duprules; /* dist upgrade rules */ Id duprules_end; Id bestrules; /* rules from SOLVER_FORCEBEST */ Id bestrules_end; Id *bestrules_pkg; Id yumobsrules; /* rules from yum obsoletes handling */ Id yumobsrules_end; Id *yumobsrules_info; /* the dependency for each rule */ Id choicerules; /* choice rules (always weak) */ Id choicerules_end; Id *choicerules_ref; Id learntrules; /* learnt rules, (end == nrules) */ Map noupdate; /* don't try to update these installed solvables */ Map multiversion; /* ignore obsoletes for these (multiinstall) */ Map updatemap; /* bring these installed packages to the newest version */ int updatemap_all; /* bring all packages to the newest version */ Map bestupdatemap; /* create best rule for those packages */ int bestupdatemap_all; /* bring all packages to the newest version */ Map fixmap; /* fix these packages */ int fixmap_all; /* fix all packages */ Queue weakruleq; /* index into 'rules' for weak ones */ Map weakrulemap; /* map rule# to '1' for weak rules, 1..learntrules */ Id *watches; /* Array of rule offsets * watches has nsolvables*2 entries and is addressed from the middle * middle-solvable : decision to conflict, offset point to linked-list of rules * middle+solvable : decision to install: offset point to linked-list of rules */ Queue ruletojob; /* index into job queue: jobs for which a rule exits */ /* our decisions: */ Queue decisionq; /* >0:install, <0:remove/conflict */ Queue decisionq_why; /* index of rule, Offset into rules */ Queue decisionq_reason; /* reason for decision, indexed by level */ Id *decisionmap; /* map for all available solvables, * = 0: undecided * > 0: level of decision when installed, * < 0: level of decision when conflict */ /* learnt rule history */ Queue learnt_why; Queue learnt_pool; Queue branches; int propagate_index; /* index into decisionq for non-propagated decisions */ Queue problems; /* list of lists of conflicting rules, < 0 for job rules */ Queue solutions; /* refined problem storage space */ Queue orphaned; /* orphaned packages (to be removed?) */ int stats_learned; /* statistic */ int stats_unsolvable; /* statistic */ Map recommendsmap; /* recommended packages from decisionmap */ Map suggestsmap; /* suggested packages from decisionmap */ int recommends_index; /* recommendsmap/suggestsmap is created up to this level */ Queue *recommendscplxq; Queue *suggestscplxq; Id *obsoletes; /* obsoletes for each installed solvable */ Id *obsoletes_data; /* data area for obsoletes */ Id *specialupdaters; /* updaters for packages with a limited update rule */ /*------------------------------------------------------------------------------------------------------------- * Solver configuration *-------------------------------------------------------------------------------------------------------------*/ int allowdowngrade; /* allow to downgrade installed solvable */ int allownamechange; /* allow to change name of installed solvables */ int allowarchchange; /* allow to change architecture of installed solvables */ int allowvendorchange; /* allow to change vendor of installed solvables */ int allowuninstall; /* allow removal of installed solvables */ int noupdateprovide; /* true: update packages needs not to provide old package */ int needupdateprovide; /* true: update packages must provide old package */ int dosplitprovides; /* true: consider legacy split provides */ int dontinstallrecommended; /* true: do not install recommended packages */ int addalreadyrecommended; /* true: also install recommended packages that were already recommended by the installed packages */ int dontshowinstalledrecommended; /* true: do not show recommended packages that are already installed */ int noinfarchcheck; /* true: do not forbid inferior architectures */ int keepexplicitobsoletes; /* true: honor obsoletes during multiinstall */ int bestobeypolicy; /* true: stay in policy with the best rules */ int noautotarget; /* true: do not assume targeted for up/dup jobs that contain no installed solvable */ int focus_installed; /* true: resolve update rules first */ int focus_best; /* true: resolve job dependencies first */ int do_yum_obsoletes; /* true: add special yumobs rules */ int urpmreorder; /* true: do special urpm package reordering */ Map dupmap; /* dup these packages*/ int dupmap_all; /* dup all packages */ Map dupinvolvedmap; /* packages involved in dup process */ int dup_allowdowngrade; /* dup mode: allow to downgrade installed solvable */ int dup_allownamechange; /* dup mode: allow to change name of installed solvable */ int dup_allowarchchange; /* dup mode: allow to change architecture of installed solvables */ int dup_allowvendorchange; /* dup mode: allow to change vendor of installed solvables */ Map droporphanedmap; /* packages to drop in dup mode */ int droporphanedmap_all; Map cleandepsmap; /* try to drop these packages as of cleandeps erases */ Queue *ruleinfoq; /* tmp space for solver_ruleinfo() */ Queue *cleandeps_updatepkgs; /* packages we update in cleandeps mode */ Queue *cleandeps_mistakes; /* mistakes we made */ Queue *update_targets; /* update to specific packages */ Queue *installsuppdepq; /* deps from the install namespace provides hack */ Queue addedmap_deduceq; /* deduce addedmap from pkg rules */ Id *instbuddy; /* buddies of installed packages */ int keep_orphans; /* how to treat orphans */ int break_orphans; /* how to treat orphans */ Queue *brokenorphanrules; /* broken rules of orphaned packages */ Map allowuninstallmap; /* ok to uninstall those */ int allowuninstall_all; Queue *favorq; Map favormap; /* favored / disfavored packages */ Map isdisfavormap; int installedpos; /* for resolve_installed */ int do_extra_reordering; /* reorder for future installed packages */ #endif /* LIBSOLV_INTERNAL */ }; typedef struct _Solver Solver; /* * queue commands */ #define SOLVER_SOLVABLE 0x01 #define SOLVER_SOLVABLE_NAME 0x02 #define SOLVER_SOLVABLE_PROVIDES 0x03 #define SOLVER_SOLVABLE_ONE_OF 0x04 #define SOLVER_SOLVABLE_REPO 0x05 #define SOLVER_SOLVABLE_ALL 0x06 #define SOLVER_SELECTMASK 0xff #define SOLVER_NOOP 0x0000 #define SOLVER_INSTALL 0x0100 #define SOLVER_ERASE 0x0200 #define SOLVER_UPDATE 0x0300 #define SOLVER_WEAKENDEPS 0x0400 #define SOLVER_MULTIVERSION 0x0500 #define SOLVER_LOCK 0x0600 #define SOLVER_DISTUPGRADE 0x0700 #define SOLVER_VERIFY 0x0800 #define SOLVER_DROP_ORPHANED 0x0900 #define SOLVER_USERINSTALLED 0x0a00 #define SOLVER_ALLOWUNINSTALL 0x0b00 #define SOLVER_FAVOR 0x0c00 #define SOLVER_DISFAVOR 0x0d00 #define SOLVER_JOBMASK 0xff00 #define SOLVER_WEAK 0x010000 #define SOLVER_ESSENTIAL 0x020000 #define SOLVER_CLEANDEPS 0x040000 /* ORUPDATE makes SOLVER_INSTALL not prune to installed * packages, thus updating installed packages */ #define SOLVER_ORUPDATE 0x080000 /* FORCEBEST makes the solver insist on best packages, so * you will get problem reported if the best package is * not installable. This can be used with INSTALL, UPDATE * and DISTUPGRADE */ #define SOLVER_FORCEBEST 0x100000 /* TARGETED is used in up/dup jobs to make the solver * treat the specified selection as target packages. * It is automatically assumed if the selection does not * contain an "installed" package unless the * NO_AUTOTARGET solver flag is set */ #define SOLVER_TARGETED 0x200000 /* This (SOLVER_INSTALL) job was automatically added * and thus does not the add to the userinstalled packages */ #define SOLVER_NOTBYUSER 0x400000 #define SOLVER_SETEV 0x01000000 #define SOLVER_SETEVR 0x02000000 #define SOLVER_SETARCH 0x04000000 #define SOLVER_SETVENDOR 0x08000000 #define SOLVER_SETREPO 0x10000000 #define SOLVER_NOAUTOSET 0x20000000 #define SOLVER_SETNAME 0x40000000 #define SOLVER_SETMASK 0x7f000000 /* legacy */ #define SOLVER_NOOBSOLETES SOLVER_MULTIVERSION #define SOLVER_REASON_UNRELATED 0 #define SOLVER_REASON_UNIT_RULE 1 #define SOLVER_REASON_KEEP_INSTALLED 2 #define SOLVER_REASON_RESOLVE_JOB 3 #define SOLVER_REASON_UPDATE_INSTALLED 4 #define SOLVER_REASON_CLEANDEPS_ERASE 5 #define SOLVER_REASON_RESOLVE 6 #define SOLVER_REASON_WEAKDEP 7 #define SOLVER_REASON_RESOLVE_ORPHAN 8 #define SOLVER_REASON_RECOMMENDED 16 #define SOLVER_REASON_SUPPLEMENTED 17 #define SOLVER_FLAG_ALLOW_DOWNGRADE 1 #define SOLVER_FLAG_ALLOW_ARCHCHANGE 2 #define SOLVER_FLAG_ALLOW_VENDORCHANGE 3 #define SOLVER_FLAG_ALLOW_UNINSTALL 4 #define SOLVER_FLAG_NO_UPDATEPROVIDE 5 #define SOLVER_FLAG_SPLITPROVIDES 6 #define SOLVER_FLAG_IGNORE_RECOMMENDED 7 #define SOLVER_FLAG_ADD_ALREADY_RECOMMENDED 8 #define SOLVER_FLAG_NO_INFARCHCHECK 9 #define SOLVER_FLAG_ALLOW_NAMECHANGE 10 #define SOLVER_FLAG_KEEP_EXPLICIT_OBSOLETES 11 #define SOLVER_FLAG_BEST_OBEY_POLICY 12 #define SOLVER_FLAG_NO_AUTOTARGET 13 #define SOLVER_FLAG_DUP_ALLOW_DOWNGRADE 14 #define SOLVER_FLAG_DUP_ALLOW_ARCHCHANGE 15 #define SOLVER_FLAG_DUP_ALLOW_VENDORCHANGE 16 #define SOLVER_FLAG_DUP_ALLOW_NAMECHANGE 17 #define SOLVER_FLAG_KEEP_ORPHANS 18 #define SOLVER_FLAG_BREAK_ORPHANS 19 #define SOLVER_FLAG_FOCUS_INSTALLED 20 #define SOLVER_FLAG_YUM_OBSOLETES 21 #define SOLVER_FLAG_NEED_UPDATEPROVIDE 22 #define SOLVER_FLAG_URPM_REORDER 23 #define SOLVER_FLAG_FOCUS_BEST 24 #define GET_USERINSTALLED_NAMES (1 << 0) /* package names instead of ids */ #define GET_USERINSTALLED_INVERTED (1 << 1) /* autoinstalled */ #define GET_USERINSTALLED_NAMEARCH (1 << 2) /* package/arch tuples instead of ids */ #define SOLVER_ALTERNATIVE_TYPE_RULE 1 #define SOLVER_ALTERNATIVE_TYPE_RECOMMENDS 2 #define SOLVER_ALTERNATIVE_TYPE_SUGGESTS 3 extern Solver *solver_create(Pool *pool); extern void solver_free(Solver *solv); extern int solver_solve(Solver *solv, Queue *job); extern Transaction *solver_create_transaction(Solver *solv); extern int solver_set_flag(Solver *solv, int flag, int value); extern int solver_get_flag(Solver *solv, int flag); extern int solver_get_decisionlevel(Solver *solv, Id p); extern void solver_get_decisionqueue(Solver *solv, Queue *decisionq); extern int solver_get_lastdecisionblocklevel(Solver *solv); extern void solver_get_decisionblock(Solver *solv, int level, Queue *decisionq); extern void solver_get_orphaned(Solver *solv, Queue *orphanedq); extern void solver_get_recommendations(Solver *solv, Queue *recommendationsq, Queue *suggestionsq, int noselected); extern void solver_get_unneeded(Solver *solv, Queue *unneededq, int filtered); extern void solver_get_userinstalled(Solver *solv, Queue *q, int flags); extern void pool_add_userinstalled_jobs(Pool *pool, Queue *q, Queue *job, int flags); extern int solver_describe_decision(Solver *solv, Id p, Id *infop); extern void solver_describe_weakdep_decision(Solver *solv, Id p, Queue *whyq); extern int solver_alternatives_count(Solver *solv); extern int solver_get_alternative(Solver *solv, Id alternative, Id *idp, Id *fromp, Id *chosenp, Queue *choices, int *levelp); extern void solver_calculate_multiversionmap(Pool *pool, Queue *job, Map *multiversionmap); extern void solver_calculate_noobsmap(Pool *pool, Queue *job, Map *multiversionmap); /* obsolete */ extern void solver_create_state_maps(Solver *solv, Map *installedmap, Map *conflictsmap); extern void solver_calc_duchanges(Solver *solv, DUChanges *mps, int nmps); extern int solver_calc_installsizechange(Solver *solv); extern void pool_job2solvables(Pool *pool, Queue *pkgs, Id how, Id what); extern int pool_isemptyupdatejob(Pool *pool, Id how, Id what); extern const char *solver_select2str(Pool *pool, Id select, Id what); extern const char *pool_job2str(Pool *pool, Id how, Id what, Id flagmask); extern const char *solver_alternative2str(Solver *solv, int type, Id id, Id from); /* iterate over all literals of a rule */ #define FOR_RULELITERALS(l, pp, r) \ for (pp = r->d < 0 ? -r->d - 1 : r->d, \ l = r->p; l; l = (pp <= 0 ? (pp-- ? 0 : r->w2) : \ pool->whatprovidesdata[pp++])) /* XXX: this currently doesn't work correctly for SOLVER_SOLVABLE_REPO and SOLVER_SOLVABLE_ALL */ /* iterate over all packages selected by a job */ #define FOR_JOB_SELECT(p, pp, select, what) \ if (select == SOLVER_SOLVABLE_REPO || select == SOLVER_SOLVABLE_ALL) \ p = pp = 0; \ else for (pp = (select == SOLVER_SOLVABLE ? 0 : \ select == SOLVER_SOLVABLE_ONE_OF ? what : \ pool_whatprovides(pool, what)), \ p = (select == SOLVER_SOLVABLE ? what : pool->whatprovidesdata[pp++]); \ p ; p = pool->whatprovidesdata[pp++]) \ if (select == SOLVER_SOLVABLE_NAME && \ pool_match_nevr(pool, pool->solvables + p, what) == 0) \ continue; \ else /* weird suse stuff */ extern void solver_trivial_installable(Solver *solv, Queue *pkgs, Queue *res); #ifdef __cplusplus } #endif #endif /* LIBSOLV_SOLVER_H */