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/*
* Copyright (c) 2015-2020 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 _QDEVICE_INSTANCE_H_
#define _QDEVICE_INSTANCE_H_
#include <sys/types.h>
#include <stdlib.h>
#include <stdint.h>
#include <corosync/cmap.h>
#include <corosync/votequorum.h>
#include "qdevice-advanced-settings.h"
#include "qdevice-heuristics.h"
#include "qdevice-model-type.h"
#include "node-list.h"
#include "pr-poll-loop.h"
#include "unix-socket-ipc.h"
#ifdef __cplusplus
extern "C" {
#endif
struct qdevice_instance {
cmap_handle_t cmap_handle;
int cmap_poll_fd;
int cmap_reload_in_progress;
cmap_track_handle_t cmap_reload_track_handle;
cmap_track_handle_t cmap_nodelist_track_handle;
cmap_track_handle_t cmap_logging_track_handle;
cmap_track_handle_t cmap_heuristics_track_handle;
votequorum_handle_t votequorum_handle;
int votequorum_poll_fd;
struct unix_socket_ipc local_ipc;
enum qdevice_model_type model_type;
uint32_t node_id;
uint32_t heartbeat_interval; /* Heartbeat interval during normal operation */
uint32_t sync_heartbeat_interval; /* Heartbeat interval during corosync sync */
struct node_list config_node_list;
int config_node_list_version_set;
uint64_t config_node_list_version;
/*
* Copy of votequorum_quorum_notify_fn callback paramters.
* Set after model callback is called.
*/
uint32_t vq_quorum_quorate;
uint32_t vq_quorum_node_list_entries;
votequorum_node_t *vq_quorum_node_list;
/*
* Copy of current votequorum_nodelist_notify_fn callback parameters.
* Set after model callback qdevice_votequorum_node_list_notify_callback is called.
*/
uint8_t vq_node_list_initial_ring_id_set;
votequorum_ring_id_t vq_node_list_ring_id;
uint32_t vq_node_list_entries;
uint32_t *vq_node_list;
uint8_t vq_node_list_initial_heuristics_finished;
enum qdevice_heuristics_exec_result vq_node_list_heuristics_result;
/*
* Copy of current votequorum_nodelist_notify_fn callback ring id
* It's set before any callback is called and used for qdevice_votequorum_poll
*/
votequorum_ring_id_t vq_poll_ring_id;
/*
* Copy of votequorum_expectedvotes_notify_fn callback parameters.
* Set after model callback is called.
*/
uint32_t vq_expected_votes;
time_t vq_last_poll;
int vq_last_poll_cast_vote;
void *model_data;
const struct qdevice_advanced_settings *advanced_settings;
int sync_in_progress;
struct qdevice_heuristics_instance heuristics_instance;
struct pr_poll_loop main_poll_loop;
/*
* Set by poll handler when votequorum/cmap connection is closed
*/
int votequorum_closed;
int cmap_closed;
/*
* Set by poll handler when one of the heuristics pipes becomes closed
*/
int heuristics_closed;
};
extern int qdevice_instance_init(struct qdevice_instance *instance,
const struct qdevice_advanced_settings *advanced_settings);
extern int qdevice_instance_destroy(struct qdevice_instance *instance);
extern int qdevice_instance_configure_from_cmap(struct qdevice_instance *instance);
extern int qdevice_instance_configure_from_cmap_heuristics(struct qdevice_instance *instance);
extern int qdevice_instance_wait_for_initial_heuristics_exec_result(struct qdevice_instance *instance);
#ifdef __cplusplus
}
#endif
#endif /* _QDEVICE_INSTANCE_H_ */
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