/* SPDX-License-Identifier: GPL-2.0-or-later */
|
/* -*- mode: c; c-basic-offset: 8; -*-
|
* vim: noexpandtab sw=8 ts=8 sts=0:
|
*
|
* heartbeat.h
|
*
|
* Function prototypes
|
*
|
* Copyright (C) 2004 Oracle. All rights reserved.
|
*/
|
|
#ifndef O2CLUSTER_HEARTBEAT_H
|
#define O2CLUSTER_HEARTBEAT_H
|
|
#include "ocfs2_heartbeat.h"
|
|
#define O2HB_REGION_TIMEOUT_MS 2000
|
|
#define O2HB_MAX_REGION_NAME_LEN 32
|
|
/* number of changes to be seen as live */
|
#define O2HB_LIVE_THRESHOLD 2
|
/* number of equal samples to be seen as dead */
|
extern unsigned int o2hb_dead_threshold;
|
#define O2HB_DEFAULT_DEAD_THRESHOLD 31
|
/* Otherwise MAX_WRITE_TIMEOUT will be zero... */
|
#define O2HB_MIN_DEAD_THRESHOLD 2
|
#define O2HB_MAX_WRITE_TIMEOUT_MS (O2HB_REGION_TIMEOUT_MS * (o2hb_dead_threshold - 1))
|
|
#define O2HB_CB_MAGIC 0x51d1e4ec
|
|
/* callback stuff */
|
enum o2hb_callback_type {
|
O2HB_NODE_DOWN_CB = 0,
|
O2HB_NODE_UP_CB,
|
O2HB_NUM_CB
|
};
|
|
struct o2nm_node;
|
typedef void (o2hb_cb_func)(struct o2nm_node *, int, void *);
|
|
struct o2hb_callback_func {
|
u32 hc_magic;
|
struct list_head hc_item;
|
o2hb_cb_func *hc_func;
|
void *hc_data;
|
int hc_priority;
|
enum o2hb_callback_type hc_type;
|
};
|
|
struct config_group *o2hb_alloc_hb_set(void);
|
void o2hb_free_hb_set(struct config_group *group);
|
|
void o2hb_setup_callback(struct o2hb_callback_func *hc,
|
enum o2hb_callback_type type,
|
o2hb_cb_func *func,
|
void *data,
|
int priority);
|
int o2hb_register_callback(const char *region_uuid,
|
struct o2hb_callback_func *hc);
|
void o2hb_unregister_callback(const char *region_uuid,
|
struct o2hb_callback_func *hc);
|
void o2hb_fill_node_map(unsigned long *map,
|
unsigned bytes);
|
void o2hb_exit(void);
|
void o2hb_init(void);
|
int o2hb_check_node_heartbeating_no_sem(u8 node_num);
|
int o2hb_check_node_heartbeating_from_callback(u8 node_num);
|
void o2hb_stop_all_regions(void);
|
int o2hb_get_all_regions(char *region_uuids, u8 numregions);
|
int o2hb_global_heartbeat_active(void);
|
|
#endif /* O2CLUSTER_HEARTBEAT_H */
|
