/* Copyright (c) 2009, 2010, 2011, 2012, 2013 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_JSONRPC_SERVER_H
#define OVSDB_JSONRPC_SERVER_H 1

#include <stdbool.h>
#include "openvswitch/types.h"
#include "jsonrpc.h"

struct ovsdb;
struct shash;
struct simap;
struct uuid;

struct ovsdb_jsonrpc_server *ovsdb_jsonrpc_server_create(bool read_only);
bool ovsdb_jsonrpc_server_add_db(struct ovsdb_jsonrpc_server *,
                                 struct ovsdb *);
void ovsdb_jsonrpc_server_remove_db(struct ovsdb_jsonrpc_server *,
                                    struct ovsdb *, char *comment);
void ovsdb_jsonrpc_server_destroy(struct ovsdb_jsonrpc_server *);

/* Options for a remote. */
struct ovsdb_jsonrpc_options {
    struct jsonrpc_session_options rpc; /* JSON-RPC options. */
    bool read_only;             /* Only read-only transactions are allowed. */
    char *role;                 /* Role, for role-based access controls */
};
struct ovsdb_jsonrpc_options *ovsdb_jsonrpc_default_options(
    const char *target);
struct ovsdb_jsonrpc_options *ovsdb_jsonrpc_options_clone(
    const struct ovsdb_jsonrpc_options *);
void ovsdb_jsonrpc_options_free(struct ovsdb_jsonrpc_options *);

struct json *ovsdb_jsonrpc_options_to_json(
    const struct ovsdb_jsonrpc_options *, bool jsonrpc_session_only)
    OVS_WARN_UNUSED_RESULT;
void ovsdb_jsonrpc_options_update_from_json(struct ovsdb_jsonrpc_options *,
                                            const struct json *,
                                            bool jsonrpc_session_only);

void ovsdb_jsonrpc_server_set_remotes(struct ovsdb_jsonrpc_server *,
                                      const struct shash *);

/* Status of a single remote connection. */
struct ovsdb_jsonrpc_remote_status {
    const char *state;
    int last_error;
    unsigned int sec_since_connect;
    unsigned int sec_since_disconnect;
    bool is_connected;
    char *locks_held;
    char *locks_waiting;
    char *locks_lost;
    int n_connections;
    ovs_be16 bound_port;
};
bool ovsdb_jsonrpc_server_get_remote_status(
    const struct ovsdb_jsonrpc_server *, const char *target,
    struct ovsdb_jsonrpc_remote_status *);
void ovsdb_jsonrpc_server_free_remote_status(
    struct ovsdb_jsonrpc_remote_status *);

void ovsdb_jsonrpc_server_reconnect(struct ovsdb_jsonrpc_server *, bool force,
                                    char *comment);

void ovsdb_jsonrpc_server_run(struct ovsdb_jsonrpc_server *);
void ovsdb_jsonrpc_server_wait(struct ovsdb_jsonrpc_server *);

void ovsdb_jsonrpc_server_set_read_only(struct ovsdb_jsonrpc_server *,
                                        bool read_only);

void ovsdb_jsonrpc_server_get_memory_usage(const struct ovsdb_jsonrpc_server *,
                                           struct simap *usage);

const struct uuid *ovsdb_jsonrpc_server_get_uuid(
    const struct ovsdb_jsonrpc_server *);

struct ovsdb_jsonrpc_monitor;
void ovsdb_jsonrpc_monitor_destroy(struct ovsdb_jsonrpc_monitor *,
                                   bool notify_cancellation);
void ovsdb_jsonrpc_disable_monitor_cond(void);

#endif /* ovsdb/jsonrpc-server.h */
