2 * Copyright (c) 2007, Novell Inc.
4 * This program is licensed under the BSD license, read LICENSE.BSD
5 * for further information
9 * Generic policy interface for SAT solver
10 * The policy* function can be "overloaded" by defining a callback in the solver struct.
19 #define POLICY_MODE_CHOOSE 0
20 #define POLICY_MODE_RECOMMEND 1
21 #define POLICY_MODE_SUGGEST 2
22 #define POLICY_MODE_CHOOSE_NOREORDER 3 /* internal, do not use */
23 #define POLICY_MODE_SUPPLEMENT 4 /* internal, do not use */
26 #define POLICY_ILLEGAL_DOWNGRADE 1
27 #define POLICY_ILLEGAL_ARCHCHANGE 2
28 #define POLICY_ILLEGAL_VENDORCHANGE 4
29 #define POLICY_ILLEGAL_NAMECHANGE 8
31 extern void policy_filter_unwanted(Solver *solv, Queue *plist, int mode);
32 extern int policy_illegal_archchange(Solver *solv, Solvable *s1, Solvable *s2);
33 extern int policy_illegal_vendorchange(Solver *solv, Solvable *s1, Solvable *s2);
34 extern int policy_is_illegal(Solver *solv, Solvable *s1, Solvable *s2, int ignore);
35 extern void policy_findupdatepackages(Solver *solv, Solvable *s, Queue *qs, int allowall);
36 extern const char *policy_illegal2str(Solver *solv, int illegal, Solvable *s, Solvable *rs);
37 extern void policy_update_recommendsmap(Solver *solv);
39 extern void policy_create_obsolete_index(Solver *solv);
41 /* internal, do not use */
42 extern void prune_to_best_version(Pool *pool, Queue *plist);
43 extern void policy_prefer_favored(Solver *solv, Queue *plist);