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/* Copyright (c) 2009, 2010 Nicira Networks.
*
* 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_IDL_H
#define OVSDB_IDL_H 1
/* Open vSwitch Database Interface Definition Language (OVSDB IDL).
*
* The OVSDB IDL maintains an in-memory replica of a database. It issues RPC
* requests to an OVSDB database server and parses the responses, converting
* raw JSON into data structures that are easier for clients to digest. Most
* notably, references to rows via UUID become C pointers.
*
* The IDL also assists with issuing database transactions. The client creates
* a transaction, manipulates the IDL data structures, and commits or aborts
* the transaction. The IDL then composes and issues the necessary JSON-RPC
* requests and reports to the client whether the transaction completed
* successfully.
*/
#include <stdbool.h>
#include <stdint.h>
#include "compiler.h"
#include "ovsdb-types.h"
struct json;
struct ovsdb_datum;
struct ovsdb_idl_class;
struct ovsdb_idl_column;
struct ovsdb_idl_table_class;
struct uuid;
struct ovsdb_idl *ovsdb_idl_create(const char *remote,
const struct ovsdb_idl_class *);
void ovsdb_idl_destroy(struct ovsdb_idl *);
bool ovsdb_idl_run(struct ovsdb_idl *);
void ovsdb_idl_wait(struct ovsdb_idl *);
unsigned int ovsdb_idl_get_seqno(const struct ovsdb_idl *);
bool ovsdb_idl_has_ever_connected(const struct ovsdb_idl *);
void ovsdb_idl_force_reconnect(struct ovsdb_idl *);
void ovsdb_idl_set_write_only(struct ovsdb_idl *,
const struct ovsdb_idl_column *);
void ovsdb_idl_omit(struct ovsdb_idl *, const struct ovsdb_idl_column *);
const struct ovsdb_idl_row *ovsdb_idl_get_row_for_uuid(
const struct ovsdb_idl *, const struct ovsdb_idl_table_class *,
const struct uuid *);
const struct ovsdb_idl_row *ovsdb_idl_first_row(
const struct ovsdb_idl *, const struct ovsdb_idl_table_class *);
const struct ovsdb_idl_row *ovsdb_idl_next_row(const struct ovsdb_idl_row *);
const struct ovsdb_datum *ovsdb_idl_read(const struct ovsdb_idl_row *,
const struct ovsdb_idl_column *);
const struct ovsdb_datum *ovsdb_idl_get(const struct ovsdb_idl_row *,
const struct ovsdb_idl_column *,
enum ovsdb_atomic_type key_type,
enum ovsdb_atomic_type value_type);
enum ovsdb_idl_txn_status {
TXN_UNCHANGED, /* Transaction didn't include any changes. */
TXN_INCOMPLETE, /* Commit in progress, please wait. */
TXN_ABORTED, /* ovsdb_idl_txn_abort() called. */
TXN_SUCCESS, /* Commit successful. */
TXN_TRY_AGAIN, /* Commit failed because a "verify" operation
* reported an inconsistency, due to a network
* problem, or other transient failure. */
TXN_ERROR /* Commit failed due to a hard error. */
};
const char *ovsdb_idl_txn_status_to_string(enum ovsdb_idl_txn_status);
struct ovsdb_idl_txn *ovsdb_idl_txn_create(struct ovsdb_idl *);
void ovsdb_idl_txn_add_comment(struct ovsdb_idl_txn *, const char *, ...)
PRINTF_FORMAT (2, 3);
void ovsdb_idl_txn_set_dry_run(struct ovsdb_idl_txn *);
void ovsdb_idl_txn_increment(struct ovsdb_idl_txn *, const char *table,
const char *column, const struct json *where);
void ovsdb_idl_txn_destroy(struct ovsdb_idl_txn *);
void ovsdb_idl_txn_wait(const struct ovsdb_idl_txn *);
enum ovsdb_idl_txn_status ovsdb_idl_txn_commit(struct ovsdb_idl_txn *);
enum ovsdb_idl_txn_status ovsdb_idl_txn_commit_block(struct ovsdb_idl_txn *);
void ovsdb_idl_txn_abort(struct ovsdb_idl_txn *);
const char *ovsdb_idl_txn_get_error(const struct ovsdb_idl_txn *);
int64_t ovsdb_idl_txn_get_increment_new_value(const struct ovsdb_idl_txn *);
const struct uuid *ovsdb_idl_txn_get_insert_uuid(const struct ovsdb_idl_txn *,
const struct uuid *);
void ovsdb_idl_txn_write(const struct ovsdb_idl_row *,
const struct ovsdb_idl_column *,
struct ovsdb_datum *);
void ovsdb_idl_txn_delete(const struct ovsdb_idl_row *);
const struct ovsdb_idl_row *ovsdb_idl_txn_insert(
struct ovsdb_idl_txn *, const struct ovsdb_idl_table_class *,
const struct uuid *);
struct ovsdb_idl *ovsdb_idl_txn_get_idl (struct ovsdb_idl_txn *);
#endif /* ovsdb-idl.h */
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