/*

 * Copyright (c) 2007, Novell Inc.

 *

 * This program is licensed under the BSD license, read LICENSE.BSD

 * for further information

 */

/*

 * Generic policy interface for SAT solver

 * The policy* function can be "overloaded" by defining a callback in the solver struct.

 */

#include "solver.h"

#ifdef __cplusplus

extern "C" {

#endif

#define POLICY_MODE_CHOOSE	0

#define POLICY_MODE_RECOMMEND	1

#define POLICY_MODE_SUGGEST	2

#define POLICY_MODE_CHOOSE_NOREORDER	3	/* internal, do not use */

#define POLICY_MODE_SUPPLEMENT	4	/* internal, do not use */

#define POLICY_MODE_FAVOR_REC	(1 << 30)	/* internal, do not use */

#define POLICY_ILLEGAL_DOWNGRADE	1

#define POLICY_ILLEGAL_ARCHCHANGE	2

#define POLICY_ILLEGAL_VENDORCHANGE	4

#define POLICY_ILLEGAL_NAMECHANGE	8

extern void policy_filter_unwanted(Solver *solv, Queue *plist, int mode);

extern int  policy_illegal_archchange(Solver *solv, Solvable *s1, Solvable *s2);

extern int  policy_illegal_vendorchange(Solver *solv, Solvable *s1, Solvable *s2);

extern int  policy_is_illegal(Solver *solv, Solvable *s1, Solvable *s2, int ignore);

extern void policy_findupdatepackages(Solver *solv, Solvable *s, Queue *qs, int allowall);

extern const char *policy_illegal2str(Solver *solv, int illegal, Solvable *s, Solvable *rs);

extern void policy_update_recommendsmap(Solver *solv);

extern void policy_create_obsolete_index(Solver *solv);

extern void pool_best_solvables(Pool *pool, Queue *plist, int flags);

/* internal, do not use */

extern void prune_to_best_version(Pool *pool, Queue *plist);

extern void policy_prefer_favored(Solver *solv, Queue *plist);

#ifdef __cplusplus

}

#endif