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/*
* Copyright (c) 2015-2017 Red Hat, Inc.
*
* All rights reserved.
*
* Author: Jan Friesse (jfriesse@redhat.com)
*
* This software licensed under BSD license, the text of which follows:
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* - Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* - Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* - Neither the name of the Red Hat, Inc. nor the names of its
* contributors may be used to endorse or promote products derived from this
* software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
* THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef _QNETD_ALGORITHM_H_
#define _QNETD_ALGORITHM_H_
#include <sys/types.h>
#include <inttypes.h>
#include "tlv.h"
#include "qnetd-client.h"
#ifdef __cplusplus
extern "C" {
#endif
extern enum tlv_reply_error_code qnetd_algorithm_client_init(struct qnetd_client *client);
extern enum tlv_reply_error_code qnetd_algorithm_config_node_list_received(
struct qnetd_client *client, uint32_t msg_seq_num, int config_version_set,
uint64_t config_version, const struct node_list *nodes, int initial,
enum tlv_vote *result_vote);
extern enum tlv_reply_error_code qnetd_algorithm_membership_node_list_received(
struct qnetd_client *client, uint32_t msg_seq_num, const struct tlv_ring_id *ring_id,
const struct node_list *nodes, enum tlv_heuristics heuristics, enum tlv_vote *result_vote);
extern enum tlv_reply_error_code qnetd_algorithm_quorum_node_list_received(
struct qnetd_client *client, uint32_t msg_seq_num, enum tlv_quorate quorate,
const struct node_list *nodes, enum tlv_vote *result_vote);
extern void qnetd_algorithm_client_disconnect(
struct qnetd_client *client, int server_going_down);
extern enum tlv_reply_error_code qnetd_algorithm_ask_for_vote_received(
struct qnetd_client *client, uint32_t msg_seq_num, enum tlv_vote *result_vote);
extern enum tlv_reply_error_code qnetd_algorithm_vote_info_reply_received(
struct qnetd_client *client, uint32_t msg_seq_num);
extern enum tlv_reply_error_code qnetd_algorithm_heuristics_change_received(
struct qnetd_client *client, uint32_t msg_seq_num, enum tlv_heuristics heuristics,
enum tlv_vote *result_vote);
extern enum tlv_reply_error_code qnetd_algorithm_timer_callback(
struct qnetd_client *client, int *reschedule_timer, int *send_vote, enum tlv_vote *result_vote);
struct qnetd_algorithm {
enum tlv_reply_error_code (*init)(struct qnetd_client *client);
void (*client_disconnect)(struct qnetd_client *client, int server_going_down);
enum tlv_reply_error_code (*membership_node_list_received)(
struct qnetd_client *client, uint32_t msg_seq_num,
const struct tlv_ring_id *ring_id,
const struct node_list *nodes, enum tlv_heuristics, enum tlv_vote *result_vote);
enum tlv_reply_error_code (*quorum_node_list_received)(
struct qnetd_client *client, uint32_t msg_seq_num, enum tlv_quorate quorate,
const struct node_list *nodes, enum tlv_vote *result_vote);
enum tlv_reply_error_code (*config_node_list_received)(
struct qnetd_client *client,
uint32_t msg_seq_num, int config_version_set, uint64_t config_version,
const struct node_list *nodes, int initial, enum tlv_vote *result_vote);
enum tlv_reply_error_code (*ask_for_vote_received)(
struct qnetd_client *client, uint32_t msg_seq_num, enum tlv_vote *result_vote);
enum tlv_reply_error_code (*vote_info_reply_received)(struct qnetd_client *client,
uint32_t msg_seq_num);
enum tlv_reply_error_code (*heuristics_change_received)(
struct qnetd_client *client, uint32_t msg_seq_num, enum tlv_heuristics heuristics,
enum tlv_vote *result_vote);
enum tlv_reply_error_code (*timer_callback)(struct qnetd_client *client,
int *reschedule_timer, int *send_vote, enum tlv_vote *result_vote);
};
extern int qnetd_algorithm_register(
enum tlv_decision_algorithm_type algorithm_number, struct qnetd_algorithm *algorithm);
extern int qnetd_algorithm_register_all(void);
#ifdef __cplusplus
}
#endif
#endif /* _QNETD_ALGORITHM_H_ */
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