1/* -*- mode: c; c-basic-offset: 8; -*- 2 * vim: noexpandtab sw=8 ts=8 sts=0: 3 * 4 * heartbeat.h 5 * 6 * Function prototypes 7 * 8 * Copyright (C) 2002, 2004 Oracle. All rights reserved. 9 * 10 * This program is free software; you can redistribute it and/or 11 * modify it under the terms of the GNU General Public 12 * License as published by the Free Software Foundation; either 13 * version 2 of the License, or (at your option) any later version. 14 * 15 * This program is distributed in the hope that it will be useful, 16 * but WITHOUT ANY WARRANTY; without even the implied warranty of 17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 18 * General Public License for more details. 19 * 20 * You should have received a copy of the GNU General Public 21 * License along with this program; if not, write to the 22 * Free Software Foundation, Inc., 59 Temple Place - Suite 330, 23 * Boston, MA 021110-1307, USA. 24 */ 25 26#ifndef OCFS2_HEARTBEAT_H 27#define OCFS2_HEARTBEAT_H 28 29void ocfs2_init_node_maps(struct ocfs2_super *osb); 30 31void ocfs2_setup_hb_callbacks(struct ocfs2_super *osb); 32int ocfs2_register_hb_callbacks(struct ocfs2_super *osb); 33void ocfs2_clear_hb_callbacks(struct ocfs2_super *osb); 34void ocfs2_stop_heartbeat(struct ocfs2_super *osb); 35 36/* node map functions - used to keep track of mounted and in-recovery 37 * nodes. */ 38void ocfs2_node_map_init(struct ocfs2_node_map *map); 39int ocfs2_node_map_is_empty(struct ocfs2_super *osb, 40 struct ocfs2_node_map *map); 41void ocfs2_node_map_set_bit(struct ocfs2_super *osb, 42 struct ocfs2_node_map *map, 43 int bit); 44void ocfs2_node_map_clear_bit(struct ocfs2_super *osb, 45 struct ocfs2_node_map *map, 46 int bit); 47int ocfs2_node_map_test_bit(struct ocfs2_super *osb, 48 struct ocfs2_node_map *map, 49 int bit); 50int ocfs2_node_map_iterate(struct ocfs2_super *osb, 51 struct ocfs2_node_map *map, 52 int idx); 53static inline int ocfs2_node_map_first_set_bit(struct ocfs2_super *osb, 54 struct ocfs2_node_map *map) 55{ 56 return ocfs2_node_map_iterate(osb, map, 0); 57} 58int ocfs2_recovery_map_set(struct ocfs2_super *osb, 59 int num); 60void ocfs2_recovery_map_clear(struct ocfs2_super *osb, 61 int num); 62/* returns 1 if bit is the only bit set in target, 0 otherwise */ 63int ocfs2_node_map_is_only(struct ocfs2_super *osb, 64 struct ocfs2_node_map *target, 65 int bit); 66 67#endif /* OCFS2_HEARTBEAT_H */ 68