razor.h
author Kristian H?gsberg <krh@redhat.com>
Sun Apr 06 19:24:07 2008 -0400 (2008-04-06)
changeset 190 d8b7dd11813d
parent 169 2d0ad2111cb0
child 192 55b177b689c0
permissions -rw-r--r--
Hide a bunch of depsolver internals in razor.c.
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#ifndef _RAZOR_H_
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#define _RAZOR_H_
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#define ARRAY_SIZE(a) (sizeof(a) / sizeof((a)[0]))
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struct razor_set;
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struct razor_package;
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struct razor_property;
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enum razor_property_type {
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	RAZOR_PROPERTY_REQUIRES,
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	RAZOR_PROPERTY_PROVIDES,
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	RAZOR_PROPERTY_CONFLICTS,
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	RAZOR_PROPERTY_OBSOLETES
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};
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enum razor_version_relation {
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	RAZOR_VERSION_LESS,
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	RAZOR_VERSION_LESS_OR_EQUAL,
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	RAZOR_VERSION_EQUAL,
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	RAZOR_VERSION_GREATER_OR_EQUAL,
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	RAZOR_VERSION_GREATER
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};
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extern const char * const razor_version_relations[];
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struct razor_set *razor_set_create(void);
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struct razor_set *razor_set_open(const char *filename);
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void razor_set_destroy(struct razor_set *set);
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int razor_set_write(struct razor_set *set, const char *filename);
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struct razor_package *
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razor_set_get_package(struct razor_set *set, const char *package);
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struct razor_package_iterator;
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struct razor_package_iterator *
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razor_package_iterator_create(struct razor_set *set);
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struct razor_package_iterator *
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razor_package_iterator_create_for_property(struct razor_set *set,
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					   struct razor_property *property);
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struct razor_package_iterator *
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razor_package_iterator_create_for_file(struct razor_set *set,
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				       const char *filename);
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int razor_package_iterator_next(struct razor_package_iterator *pi,
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				struct razor_package **package,
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				const char **name, const char **version);
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void razor_package_iterator_destroy(struct razor_package_iterator *pi);
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struct razor_property_iterator;
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struct razor_property_iterator *
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razor_property_iterator_create(struct razor_set *set,
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			       struct razor_package *package);
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int razor_property_iterator_next(struct razor_property_iterator *pi,
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				 struct razor_property **property,
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				 const char **name,
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				 enum razor_version_relation *relation,
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				 const char **version,
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				 enum razor_property_type *type);
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void
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razor_property_iterator_destroy(struct razor_property_iterator *pi);
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void razor_set_list_files(struct razor_set *set, const char *prefix);
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void razor_set_list_package_files(struct razor_set *set, const char *name);
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void razor_set_list_unsatisfied(struct razor_set *set);
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typedef void (*razor_package_callback_t)(const char *name,
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					 const char *old_version,
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					 const char *new_version,
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					 void *data);
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void
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razor_set_diff(struct razor_set *set, struct razor_set *upstream,
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	       razor_package_callback_t callback, void *data);
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/* Package transactions */
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enum razor_transaction_package_state {
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	/* Basic states */
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	RAZOR_PACKAGE_INSTALL,
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	RAZOR_PACKAGE_FORCED_UPDATE,
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	RAZOR_PACKAGE_REMOVE,
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	RAZOR_PACKAGE_OBSOLETED,
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	/* Error states */
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	RAZOR_PACKAGE_FIRST_ERROR_STATE = 0x4,
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	RAZOR_PACKAGE_UNAVAILABLE_FLAG = 0x4,
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	/* Package requested for install does not exist */
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	RAZOR_PACKAGE_INSTALL_UNAVAILABLE = RAZOR_PACKAGE_INSTALL | RAZOR_PACKAGE_UNAVAILABLE_FLAG,
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	/* Package requiring update does not have any update */
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	RAZOR_PACKAGE_UPDATE_UNAVAILABLE = RAZOR_PACKAGE_FORCED_UPDATE | RAZOR_PACKAGE_UNAVAILABLE_FLAG,
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	/* Package requested for removal does not exist */
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	RAZOR_PACKAGE_REMOVE_NOT_INSTALLED = RAZOR_PACKAGE_REMOVE | RAZOR_PACKAGE_UNAVAILABLE_FLAG,
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	/* (not used) */
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	RAZOR_PACKAGE_OBSOLETE_UNAVAILABLE = RAZOR_PACKAGE_OBSOLETED | RAZOR_PACKAGE_UNAVAILABLE_FLAG,
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	/* No newer version of package is available */
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	RAZOR_PACKAGE_UP_TO_DATE,
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	/* Package marked for both install and remove */
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	RAZOR_PACKAGE_CONTRADICTION,
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	/* Package would add a conflict with an already-installed package */
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	RAZOR_PACKAGE_NEW_CONFLICT,
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	/* Already-installed package has a conflict against this package */
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	RAZOR_PACKAGE_OLD_CONFLICT,
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	/* Requirement of to-be-installed package can't be satisfied */
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	RAZOR_PACKAGE_UNSATISFIABLE,
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};
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struct razor_transaction *
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razor_transaction_create(struct razor_set *system, struct razor_set *upstream,
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			 int update_count, const char **update_packages,
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			 int remove_count, const char **remove_packages);
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int razor_transaction_describe(struct razor_transaction *trans);
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struct razor_set *razor_transaction_run(struct razor_transaction *trans);
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void razor_transaction_destroy(struct razor_transaction *trans);
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/* Temporary helper for test suite. */
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int razor_transaction_unsatisfied_property(struct razor_transaction *trans,
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					   const char *name,
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					   enum razor_version_relation rel,
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					   const char *version);
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/* Importer interface; for building a razor set from external sources,
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 * like yum, rpmdb or razor package files. */
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struct razor_importer;
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struct razor_rpm;
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struct razor_importer *razor_importer_new(void);
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void razor_importer_destroy(struct razor_importer *importer);
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void razor_importer_begin_package(struct razor_importer *importer,
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				  const char *name, const char *version);
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void razor_importer_add_property(struct razor_importer *importer,
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				 const char *name,
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				 enum razor_version_relation relation,
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				 const char *version,
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				 enum razor_property_type type);
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void razor_importer_add_file(struct razor_importer *importer,
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			     const char *name);
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void razor_importer_finish_package(struct razor_importer *importer);
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int razor_importer_add_rpm(struct razor_importer *importer,
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			   struct razor_rpm *rpm);
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struct razor_set *razor_importer_finish(struct razor_importer *importer);
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void razor_build_evr(char *evr_buf, int size, const char *epoch,
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		     const char *version, const char *release);
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struct razor_set *razor_set_create_from_yum(void);
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struct razor_set *razor_set_create_from_rpmdb(void);
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/* RPM functions */
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struct razor_rpm *razor_rpm_open(const char *filename);
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int razor_rpm_install(struct razor_rpm *rpm, const char *root);
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int razor_rpm_close(struct razor_rpm *rpm);
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#endif /* _RAZOR_H_ */