/* -*- 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. * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * General Public License for more details. * * You should have received a copy of the GNU General Public * License along with this program; if not, write to the * Free Software Foundation, Inc., 59 Temple Place - Suite 330, * Boston, MA 021110-1307, USA. * */ #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); int o2hb_init(void); int o2hb_check_node_heartbeating(u8 node_num); int o2hb_check_node_heartbeating_no_sem(u8 node_num); int o2hb_check_node_heartbeating_from_callback(u8 node_num); int o2hb_check_local_node_heartbeating(void); 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 */ f='/cgit.cgi/linux/net-next.git/log/include?id=97e219b7c1f75b14b29abe28ad53e8709e8d15e5'>include/uapi/drm/drm_sarea.h
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