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152 lines
4.7 KiB
C
152 lines
4.7 KiB
C
/*
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* Copyright (c) 2015-2020 Red Hat, Inc.
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*
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* All rights reserved.
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*
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* Author: Jan Friesse (jfriesse@redhat.com)
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*
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* This software licensed under BSD license, the text of which follows:
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* - Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* - Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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* - Neither the name of the Red Hat, Inc. nor the names of its
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* contributors may be used to endorse or promote products derived from this
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* software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
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* THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef _QDEVICE_INSTANCE_H_
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#define _QDEVICE_INSTANCE_H_
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#include <sys/types.h>
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#include <stdlib.h>
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#include <stdint.h>
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#include <corosync/cmap.h>
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#include <corosync/votequorum.h>
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#include "qdevice-advanced-settings.h"
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#include "qdevice-heuristics.h"
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#include "qdevice-model-type.h"
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#include "node-list.h"
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#include "pr-poll-loop.h"
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#include "unix-socket-ipc.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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struct qdevice_instance {
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cmap_handle_t cmap_handle;
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int cmap_poll_fd;
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int cmap_reload_in_progress;
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cmap_track_handle_t cmap_reload_track_handle;
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cmap_track_handle_t cmap_nodelist_track_handle;
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cmap_track_handle_t cmap_logging_track_handle;
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cmap_track_handle_t cmap_heuristics_track_handle;
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votequorum_handle_t votequorum_handle;
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int votequorum_poll_fd;
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struct unix_socket_ipc local_ipc;
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enum qdevice_model_type model_type;
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uint32_t node_id;
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uint32_t heartbeat_interval; /* Heartbeat interval during normal operation */
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uint32_t sync_heartbeat_interval; /* Heartbeat interval during corosync sync */
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struct node_list config_node_list;
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int config_node_list_version_set;
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uint64_t config_node_list_version;
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/*
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* Copy of votequorum_quorum_notify_fn callback paramters.
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* Set after model callback is called.
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*/
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uint32_t vq_quorum_quorate;
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uint32_t vq_quorum_node_list_entries;
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votequorum_node_t *vq_quorum_node_list;
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/*
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* Copy of current votequorum_nodelist_notify_fn callback parameters.
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* Set after model callback qdevice_votequorum_node_list_notify_callback is called.
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*/
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uint8_t vq_node_list_initial_ring_id_set;
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votequorum_ring_id_t vq_node_list_ring_id;
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uint32_t vq_node_list_entries;
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uint32_t *vq_node_list;
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uint8_t vq_node_list_initial_heuristics_finished;
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enum qdevice_heuristics_exec_result vq_node_list_heuristics_result;
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/*
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* Copy of current votequorum_nodelist_notify_fn callback ring id
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* It's set before any callback is called and used for qdevice_votequorum_poll
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*/
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votequorum_ring_id_t vq_poll_ring_id;
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/*
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* Copy of votequorum_expectedvotes_notify_fn callback parameters.
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* Set after model callback is called.
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*/
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uint32_t vq_expected_votes;
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time_t vq_last_poll;
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int vq_last_poll_cast_vote;
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void *model_data;
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const struct qdevice_advanced_settings *advanced_settings;
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int sync_in_progress;
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struct qdevice_heuristics_instance heuristics_instance;
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struct pr_poll_loop main_poll_loop;
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/*
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* Set by poll handler when votequorum/cmap connection is closed
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*/
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int votequorum_closed;
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int cmap_closed;
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/*
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* Set by poll handler when one of the heuristics pipes becomes closed
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*/
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int heuristics_closed;
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};
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extern int qdevice_instance_init(struct qdevice_instance *instance,
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const struct qdevice_advanced_settings *advanced_settings);
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extern int qdevice_instance_destroy(struct qdevice_instance *instance);
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extern int qdevice_instance_configure_from_cmap(struct qdevice_instance *instance);
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extern int qdevice_instance_configure_from_cmap_heuristics(struct qdevice_instance *instance);
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extern int qdevice_instance_wait_for_initial_heuristics_exec_result(struct qdevice_instance *instance);
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#ifdef __cplusplus
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}
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#endif
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#endif /* _QDEVICE_INSTANCE_H_ */
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