X-Git-Url: https://git.tokkee.org/?a=blobdiff_plain;f=src%2Finclude%2Fcore%2Fstore.h;h=76995d40a11452c8bc46881349a323eab88f33ab;hb=13997f70dfd15cceed0c12bb6ddef787bbbe04e1;hp=a7804ddc31f781dff833d31547a861c233f8c865;hpb=10a65c7e584820b403567bc849581bb0c3176ff5;p=sysdb.git diff --git a/src/include/core/store.h b/src/include/core/store.h index a7804dd..76995d4 100644 --- a/src/include/core/store.h +++ b/src/include/core/store.h @@ -106,6 +106,14 @@ enum { : ((f) == SDB_FIELD_INTERVAL) ? "interval" \ : ((f) == SDB_FIELD_BACKEND) ? "backend" : "unknown") +#define SDB_FIELD_TYPE(f) \ + (((f) == SDB_FIELD_NAME) ? SDB_TYPE_STRING \ + : ((f) == SDB_FIELD_LAST_UPDATE) ? SDB_TYPE_DATETIME \ + : ((f) == SDB_FIELD_AGE) ? SDB_TYPE_DATETIME \ + : ((f) == SDB_FIELD_INTERVAL) ? SDB_TYPE_DATETIME \ + : ((f) == SDB_FIELD_BACKEND) ? (SDB_TYPE_ARRAY | SDB_TYPE_STRING) \ + : -1) + /* * sdb_store_clear: * Clear the entire store and remove all stored objects. @@ -320,7 +328,8 @@ sdb_store_expr_fieldvalue(int field); /* * sdb_store_expr_attrvalue: * Creates an expression which evaluates to the value of the specified - * attribute of a stored object. + * attribute of a stored object. Evaluates to a NULL value if the attribute + * does not exist. * * Returns: * - an expression object on success @@ -357,53 +366,6 @@ int sdb_store_expr_eval(sdb_store_expr_t *expr, sdb_store_obj_t *obj, sdb_data_t *res, sdb_store_matcher_t *filter); -/* - * Conditionals may be used to lookup hosts from the store based on a - * conditional expression. - * - * A conditional object inherits from sdb_object_t and, thus, may safely be - * cast to a generic object. - */ -struct sdb_store_cond; -typedef struct sdb_store_cond sdb_store_cond_t; -#define SDB_STORE_COND(obj) ((sdb_store_cond_t *)(obj)) - -/* - * sdb_store_attr_cond: - * Creates a conditional based on attribute values. The value of stored - * attributes is compared against the value the expression evaluates to. See - * sdb_data_cmp for details about the comparison. - */ -sdb_store_cond_t * -sdb_store_attr_cond(const char *name, sdb_store_expr_t *expr); - -/* - * sdb_store_obj_cond: - * Creates a conditional based on queryable object fields. The respective - * field of *any* object type is compared against the value the expression - * evaluates to. - */ -sdb_store_cond_t * -sdb_store_obj_cond(int field, sdb_store_expr_t *expr); - -/* - * sdb_store_name_matcher: - * Creates a matcher matching by the specified object type's name. If 're' is - * true, the specified name is treated as a POSIX extended regular expression. - * Else, the exact name has to match (case-insensitive). - */ -sdb_store_matcher_t * -sdb_store_name_matcher(int type, const char *name, _Bool re); - -/* - * sdb_store_attr_matcher: - * Creates a matcher matching attributes based on their value. If 're' is - * true, the specified name is treated as a POSIX extended regular expression. - * Else, the exact name has to match (case-insensitive). - */ -sdb_store_matcher_t * -sdb_store_attr_matcher(const char *name, const char *value, _Bool re); - /* * sdb_store_isnull_matcher: * Creates a matcher matching NULL values. @@ -419,44 +381,50 @@ sdb_store_matcher_t * sdb_store_isnnull_matcher(sdb_store_expr_t *expr); /* - * sdb_store_child_matcher: - * Creates a matcher matching an object's children of the specified type. It - * matches if *any* of those children match 'm'. + * sdb_store_any_matcher: + * Creates a matcher iterating over objects of the specified type. It matches + * if *any* of those objects match 'm'. */ sdb_store_matcher_t * -sdb_store_child_matcher(int type, sdb_store_matcher_t *m); +sdb_store_any_matcher(int type, sdb_store_matcher_t *m); + +/* + * sdb_store_all_matcher: + * Creates a matcher iterating over objects of the specified type. It matches + * if *all* of those objects match 'm'. + */ +sdb_store_matcher_t * +sdb_store_all_matcher(int type, sdb_store_matcher_t *m); /* * sdb_store_lt_matcher, sdb_store_le_matcher, sdb_store_eq_matcher, * sdb_store_ge_matcher, sdb_store_gt_matcher: - * Creates a matcher based on a conditional. The matcher matches objects for - * which the conditional evaluates the object to compare less than, less or - * equal, equal, greater or equal, or greater than the conditional's value - * repsectively. + * Create conditional matchers comparing the values of two expressions. The + * matcher matches if the left expression compres less than, less or equal + * than, equal to, not equal to, greater or equal than, or greater than the + * right expression. */ sdb_store_matcher_t * -sdb_store_lt_matcher(sdb_store_cond_t *cond); +sdb_store_lt_matcher(sdb_store_expr_t *left, sdb_store_expr_t *right); sdb_store_matcher_t * -sdb_store_le_matcher(sdb_store_cond_t *cond); +sdb_store_le_matcher(sdb_store_expr_t *left, sdb_store_expr_t *right); sdb_store_matcher_t * -sdb_store_eq_matcher(sdb_store_cond_t *cond); +sdb_store_eq_matcher(sdb_store_expr_t *left, sdb_store_expr_t *right); sdb_store_matcher_t * -sdb_store_ge_matcher(sdb_store_cond_t *cond); -sdb_store_matcher_t * -sdb_store_gt_matcher(sdb_store_cond_t *cond); - +sdb_store_ne_matcher(sdb_store_expr_t *left, sdb_store_expr_t *right); sdb_store_matcher_t * -sdb_store_cmp_lt(sdb_store_expr_t *left, sdb_store_expr_t *right); +sdb_store_ge_matcher(sdb_store_expr_t *left, sdb_store_expr_t *right); sdb_store_matcher_t * -sdb_store_cmp_le(sdb_store_expr_t *left, sdb_store_expr_t *right); -sdb_store_matcher_t * -sdb_store_cmp_eq(sdb_store_expr_t *left, sdb_store_expr_t *right); -sdb_store_matcher_t * -sdb_store_cmp_ne(sdb_store_expr_t *left, sdb_store_expr_t *right); -sdb_store_matcher_t * -sdb_store_cmp_ge(sdb_store_expr_t *left, sdb_store_expr_t *right); +sdb_store_gt_matcher(sdb_store_expr_t *left, sdb_store_expr_t *right); + +/* + * sdb_store_in_matcher: + * Creates a matcher which matches if the right value evaluates to an array + * value and the left value is included in that array. See sdb_data_inarray + * for more details. + */ sdb_store_matcher_t * -sdb_store_cmp_gt(sdb_store_expr_t *left, sdb_store_expr_t *right); +sdb_store_in_matcher(sdb_store_expr_t *left, sdb_store_expr_t *right); /* * sdb_store_regex_matcher: @@ -496,6 +464,17 @@ typedef sdb_store_matcher_t *(*sdb_store_matcher_op_cb) sdb_store_matcher_op_cb sdb_store_parse_matcher_op(const char *op); +/* + * sdb_store_parse_object_type: + * Parse the type name of a stored object. + * + * Returns: + * - the object type on success + * - a negative value else + */ +int +sdb_store_parse_object_type(const char *name); + /* * sdb_store_parse_object_type_plural: * Parse the type name (plural) of a stored object. @@ -518,31 +497,6 @@ sdb_store_parse_object_type_plural(const char *name); int sdb_store_parse_field_name(const char *name); -/* - * sdb_store_matcher_parse_cmp: - * Parse a simple compare expression (. ). - * - * Returns: - * - a matcher object on success - * - NULL else - */ -sdb_store_matcher_t * -sdb_store_matcher_parse_cmp(const char *obj_type, const char *attr, - const char *op, sdb_store_expr_t *expr); - -/* - * sdb_store_matcher_parse_field_cmp: - * Parse a simple compare expression for queryable object fields ( - * ). - * - * Returns: - * - a matcher object on success - * - NULL else - */ -sdb_store_matcher_t * -sdb_store_matcher_parse_field_cmp(const char *name, const char *op, - sdb_store_expr_t *expr); - /* * sdb_store_dis_matcher: * Creates a matcher matching the disjunction (logical OR) of two matchers. @@ -583,14 +537,6 @@ int sdb_store_matcher_matches(sdb_store_matcher_t *m, sdb_store_obj_t *obj, sdb_store_matcher_t *filter); -/* - * sdb_store_matcher_tostring: - * Format a matcher object as string. This is meant for logging or debugging - * purposes. - */ -char * -sdb_store_matcher_tostring(sdb_store_matcher_t *m, char *buf, size_t buflen); - /* * sdb_store_lookup_cb: * Lookup callback. It is called for each matching object when looking up data @@ -664,24 +610,6 @@ int sdb_store_host_tojson(sdb_store_obj_t *host, sdb_strbuf_t *buf, sdb_store_matcher_t *filter, int flags); -/* - * sdb_store_iter_cb: - * Store iterator callback. Iteration stops if the callback returns non-zero. - */ -typedef int (*sdb_store_iter_cb)(sdb_store_obj_t *obj, void *user_data); - -/* - * sdb_store_iterate: - * Iterate the entire store, calling the specified callback for each object. - * The user_data pointer is passed on to each call of the callback. - * - * Returns: - * - 0 on success - * - a negative value else - */ -int -sdb_store_iterate(sdb_store_iter_cb cb, void *user_data); - #ifdef __cplusplus } /* extern "C" */ #endif