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/* 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.
* You may obtain a copy of the License at:
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef OVSDB_TABLE_H
#define OVSDB_TABLE_H 1
#include <stdbool.h>
#include "compiler.h"
#include "openvswitch/hmap.h"
#include "openvswitch/shash.h"
struct json;
struct uuid;
struct ovsdb_txn;
/* Schema for a database table. */
struct ovsdb_table_schema {
char *name;
bool mutable;
bool is_root; /* Part of garbage collection root set? */
unsigned int max_rows; /* Maximum number of rows. */
struct shash columns; /* Contains "struct ovsdb_column *"s. */
struct ovsdb_column_set *indexes;
size_t n_indexes;
};
struct ovsdb_table_schema *ovsdb_table_schema_create(
const char *name, bool mutable, unsigned int max_rows, bool is_root);
struct ovsdb_table_schema *ovsdb_table_schema_clone(
const struct ovsdb_table_schema *);
void ovsdb_table_schema_destroy(struct ovsdb_table_schema *);
struct ovsdb_error *ovsdb_table_schema_from_json(const struct json *,
const char *name,
struct ovsdb_table_schema **)
OVS_WARN_UNUSED_RESULT;
struct json *ovsdb_table_schema_to_json(const struct ovsdb_table_schema *,
bool default_is_root);
const struct ovsdb_column *ovsdb_table_schema_get_column(
const struct ovsdb_table_schema *, const char *name);
/* Database table. */
struct ovsdb_table {
struct ovsdb_table_schema *schema;
struct ovsdb_txn_table *txn_table; /* Only if table is in a transaction. */
struct hmap rows; /* Contains "struct ovsdb_row"s. */
/* An array of schema->n_indexes hmaps, each of which contains "struct
* ovsdb_row"s. Each of the hmap_nodes in indexes[i] are at index 'i' at
* the end of struct ovsdb_row, following the 'fields' member. */
struct hmap *indexes;
bool log; /* True if logging is enabled for this table. */
};
struct ovsdb_table *ovsdb_table_create(struct ovsdb_table_schema *);
void ovsdb_table_destroy(struct ovsdb_table *);
void ovsdb_table_logging_enable(struct ovsdb_table *, bool);
bool ovsdb_table_is_logging_enabled(struct ovsdb_table *table);
const struct ovsdb_row *ovsdb_table_get_row(const struct ovsdb_table *,
const struct uuid *);
/* Below functions adds row modification for ovsdb table to the transaction. */
struct ovsdb_error *ovsdb_table_execute_insert(struct ovsdb_txn *txn,
const struct uuid *row_uuid,
struct ovsdb_table *table,
struct json *new);
struct ovsdb_error *ovsdb_table_execute_delete(struct ovsdb_txn *txn,
const struct uuid *row_uuid,
struct ovsdb_table *table);
struct ovsdb_error *ovsdb_table_execute_update(struct ovsdb_txn *txn,
const struct uuid *row_uuid,
struct ovsdb_table *table,
struct json *new, bool xor);
#endif /* ovsdb/table.h */
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