-/* Copyright (c) 2009, 2010 Nicira Networks
+/* Copyright (c) 2009, 2010, 2011 Nicira, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
\f
/* An atomic type plus optional constraints. */
+enum ovsdb_ref_type {
+ OVSDB_REF_STRONG, /* Target must exist. */
+ OVSDB_REF_WEAK /* Delete reference if target disappears. */
+};
+
struct ovsdb_base_type {
enum ovsdb_atomic_type type;
+
+ /* If nonnull, a datum with keys of type 'type' that expresses all the
+ * valid values for this base_type. */
+ struct ovsdb_datum *enum_;
+
union {
struct ovsdb_integer_constraints {
int64_t min; /* minInteger or INT64_MIN. */
struct ovsdb_uuid_constraints {
char *refTableName; /* Name of referenced table, or NULL. */
struct ovsdb_table *refTable; /* Referenced table, if available. */
+ enum ovsdb_ref_type refType; /* Reference type. */
} uuid;
} u;
};
#define OVSDB_BASE_STRING_INIT { .type = OVSDB_TYPE_STRING, \
.u.string = { 0, UINT_MAX } }
#define OVSDB_BASE_UUID_INIT { .type = OVSDB_TYPE_UUID, \
- .u.uuid = { NULL, NULL } }
+ .u.uuid = { NULL, NULL, 0 } }
void ovsdb_base_type_init(struct ovsdb_base_type *, enum ovsdb_atomic_type);
void ovsdb_base_type_clone(struct ovsdb_base_type *,
bool ovsdb_base_type_is_valid(const struct ovsdb_base_type *);
bool ovsdb_base_type_has_constraints(const struct ovsdb_base_type *);
void ovsdb_base_type_clear_constraints(struct ovsdb_base_type *);
+const struct ovsdb_type *ovsdb_base_type_get_enum_type(enum ovsdb_atomic_type);
struct ovsdb_error *ovsdb_base_type_from_json(struct ovsdb_base_type *,
const struct json *)
WARN_UNUSED_RESULT;
struct json *ovsdb_base_type_to_json(const struct ovsdb_base_type *);
+
+static inline bool ovsdb_base_type_is_ref(const struct ovsdb_base_type *);
+static inline bool ovsdb_base_type_is_strong_ref(
+ const struct ovsdb_base_type *);
+static inline bool ovsdb_base_type_is_weak_ref(const struct ovsdb_base_type *);
\f
/* An OVSDB type.
*
static inline bool
ovsdb_atomic_type_is_valid(enum ovsdb_atomic_type atomic_type)
{
- return atomic_type >= 0 && atomic_type < OVSDB_N_TYPES;
+ return (int) atomic_type >= 0 && atomic_type < OVSDB_N_TYPES;
+}
+
+static inline bool
+ovsdb_base_type_is_ref(const struct ovsdb_base_type *base)
+{
+ return base->type == OVSDB_TYPE_UUID && base->u.uuid.refTableName;
+}
+
+static inline bool
+ovsdb_base_type_is_strong_ref(const struct ovsdb_base_type *base)
+{
+ return (ovsdb_base_type_is_ref(base)
+ && base->u.uuid.refType == OVSDB_REF_STRONG);
+}
+
+static inline bool
+ovsdb_base_type_is_weak_ref(const struct ovsdb_base_type *base)
+{
+ return (ovsdb_base_type_is_ref(base)
+ && base->u.uuid.refType == OVSDB_REF_WEAK);
}
static inline bool ovsdb_type_is_scalar(const struct ovsdb_type *type)