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qdevice-net-algo-2nodelms.c
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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.
*/
#include <sys/types.h>
#include <string.h>
#include "qdevice-net-algo-2nodelms.h"
#include "qdevice-log.h"
#include "qdevice-net-send.h"
#include "qdevice-net-cast-vote-timer.h"
int
qdevice_net_algo_2nodelms_init(struct qdevice_net_instance *instance)
{
return (0);
}
int
qdevice_net_algo_2nodelms_connected(struct qdevice_net_instance *instance, enum tlv_heuristics *heuristics,
int *send_config_node_list, int *send_membership_node_list, int *send_quorum_node_list, enum tlv_vote *vote)
{
return (0);
}
int
qdevice_net_algo_2nodelms_config_node_list_changed(struct qdevice_net_instance *instance,
const struct node_list *nlist, int config_version_set, uint64_t config_version,
int *send_node_list, enum tlv_vote *vote)
{
return (0);
}
int
qdevice_net_algo_2nodelms_votequorum_node_list_notify(struct qdevice_net_instance *instance,
const struct tlv_ring_id *ring_id, uint32_t node_list_entries, uint32_t node_list[],
int *pause_cast_vote_timer, enum tlv_vote *vote)
{
return (0);
}
int
qdevice_net_algo_2nodelms_votequorum_node_list_heuristics_notify(struct qdevice_net_instance *instance,
const struct tlv_ring_id *ring_id, uint32_t node_list_entries, uint32_t node_list[],
int *send_node_list, enum tlv_vote *vote, enum tlv_heuristics *heuristics)
{
return (0);
}
int
qdevice_net_algo_2nodelms_votequorum_quorum_notify(struct qdevice_net_instance *instance,
uint32_t quorate, uint32_t node_list_entries, votequorum_node_t node_list[], int *send_node_list,
enum tlv_vote *vote)
{
return (0);
}
int
qdevice_net_algo_2nodelms_votequorum_expected_votes_notify(struct qdevice_net_instance *instance,
uint32_t expected_votes, enum tlv_vote *vote)
{
return (0);
}
int
qdevice_net_algo_2nodelms_config_node_list_reply_received(struct qdevice_net_instance *instance,
uint32_t seq_number, int initial, const struct tlv_ring_id *ring_id, int ring_id_is_valid, enum tlv_vote *vote)
{
if (!ring_id_is_valid) {
*vote = TLV_VOTE_NO_CHANGE;
}
return (0);
}
int
qdevice_net_algo_2nodelms_membership_node_list_reply_received(struct qdevice_net_instance *instance,
uint32_t seq_number, const struct tlv_ring_id *ring_id, int ring_id_is_valid,
enum tlv_vote *vote)
{
if (!ring_id_is_valid) {
*vote = TLV_VOTE_NO_CHANGE;
}
return (0);
}
int
qdevice_net_algo_2nodelms_quorum_node_list_reply_received(struct qdevice_net_instance *instance,
uint32_t seq_number, const struct tlv_ring_id *ring_id, int ring_id_is_valid, enum tlv_vote *vote)
{
if (!ring_id_is_valid) {
*vote = TLV_VOTE_NO_CHANGE;
}
return (0);
}
int
qdevice_net_algo_2nodelms_ask_for_vote_reply_received(struct qdevice_net_instance *instance,
uint32_t seq_number, const struct tlv_ring_id *ring_id, int ring_id_is_valid, enum tlv_vote *vote)
{
if (!ring_id_is_valid) {
*vote = TLV_VOTE_NO_CHANGE;
}
return (0);
}
int
qdevice_net_algo_2nodelms_vote_info_received(struct qdevice_net_instance *instance,
uint32_t seq_number, const struct tlv_ring_id *ring_id, int ring_id_is_valid, enum tlv_vote *vote)
{
if (!ring_id_is_valid) {
*vote = TLV_VOTE_NO_CHANGE;
}
return (0);
}
int
qdevice_net_algo_2nodelms_echo_reply_received(struct qdevice_net_instance *instance,
uint32_t seq_number, int is_expected_seq_number)
{
return (is_expected_seq_number ? 0 : -1);
}
int
qdevice_net_algo_2nodelms_echo_reply_not_received(struct qdevice_net_instance *instance)
{
return (-1);
}
int
qdevice_net_algo_2nodelms_heuristics_change(struct qdevice_net_instance *instance,
enum tlv_heuristics *heuristics, int *send_msg, enum tlv_vote *vote)
{
return (0);
}
int
qdevice_net_algo_2nodelms_heuristics_change_reply_received(struct qdevice_net_instance *instance,
uint32_t seq_number, const struct tlv_ring_id *ring_id, int ring_id_is_valid,
enum tlv_heuristics heuristics, enum tlv_vote *vote)
{
if (!ring_id_is_valid) {
*vote = TLV_VOTE_NO_CHANGE;
}
return (0);
}
int
qdevice_net_algo_2nodelms_disconnected(struct qdevice_net_instance *instance,
enum qdevice_net_disconnect_reason disconnect_reason, int *try_reconnect, enum tlv_vote *vote)
{
return (0);
}
void
qdevice_net_algo_2nodelms_destroy(struct qdevice_net_instance *instance)
{
}
static struct qdevice_net_algorithm qdevice_net_algo_2nodelms = {
.init = qdevice_net_algo_2nodelms_init,
.connected = qdevice_net_algo_2nodelms_connected,
.config_node_list_changed = qdevice_net_algo_2nodelms_config_node_list_changed,
.votequorum_node_list_notify = qdevice_net_algo_2nodelms_votequorum_node_list_notify,
.votequorum_node_list_heuristics_notify = qdevice_net_algo_2nodelms_votequorum_node_list_heuristics_notify,
.votequorum_quorum_notify = qdevice_net_algo_2nodelms_votequorum_quorum_notify,
.votequorum_expected_votes_notify = qdevice_net_algo_2nodelms_votequorum_expected_votes_notify,
.config_node_list_reply_received = qdevice_net_algo_2nodelms_config_node_list_reply_received,
.membership_node_list_reply_received = qdevice_net_algo_2nodelms_membership_node_list_reply_received,
.quorum_node_list_reply_received = qdevice_net_algo_2nodelms_quorum_node_list_reply_received,
.ask_for_vote_reply_received = qdevice_net_algo_2nodelms_ask_for_vote_reply_received,
.vote_info_received = qdevice_net_algo_2nodelms_vote_info_received,
.echo_reply_received = qdevice_net_algo_2nodelms_echo_reply_received,
.echo_reply_not_received = qdevice_net_algo_2nodelms_echo_reply_not_received,
.heuristics_change = qdevice_net_algo_2nodelms_heuristics_change,
.heuristics_change_reply_received = qdevice_net_algo_2nodelms_heuristics_change_reply_received,
.disconnected = qdevice_net_algo_2nodelms_disconnected,
.destroy = qdevice_net_algo_2nodelms_destroy,
};
int
qdevice_net_algo_2nodelms_register(void)
{
return (qdevice_net_algorithm_register(TLV_DECISION_ALGORITHM_TYPE_2NODELMS, &qdevice_net_algo_2nodelms));
}

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