1 /* -*- mode: c; c-basic-offset: 8; -*-
2 * vim: noexpandtab sw=8 ts=8 sts=0:
3 *
4 * nodemanager.h
5 *
6 * Function prototypes
7 *
8 * Copyright (C) 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
27 #ifndef O2CLUSTER_NODEMANAGER_H
28 #define O2CLUSTER_NODEMANAGER_H
29
30 #include "ocfs2_nodemanager.h"
31
32 /* This totally doesn't belong here. */
33 #include <linux/configfs.h>
34 #include <linux/rbtree.h>
35
36 #define FS_OCFS2_NM 1
37
38 const char *o2nm_get_hb_ctl_path(void);
39
40 struct o2nm_node {
41 spinlock_t nd_lock;
42 struct config_item nd_item;
43 char nd_name[O2NM_MAX_NAME_LEN+1]; /* replace? */
44 __u8 nd_num;
45 /* only one address per node, as attributes, for now. */
46 __be32 nd_ipv4_address;
47 __be16 nd_ipv4_port;
48 struct rb_node nd_ip_node;
49 /* there can be only one local node for now */
50 int nd_local;
51
52 unsigned long nd_set_attributes;
53 };
54
55 struct o2nm_cluster {
56 struct config_group cl_group;
57 unsigned cl_has_local:1;
58 u8 cl_local_node;
59 rwlock_t cl_nodes_lock;
60 struct o2nm_node *cl_nodes[O2NM_MAX_NODES];
61 struct rb_root cl_node_ip_tree;
62 unsigned int cl_idle_timeout_ms;
63 unsigned int cl_keepalive_delay_ms;
64 unsigned int cl_reconnect_delay_ms;
65
66 /* this bitmap is part of a hack for disk bitmap.. will go eventually. - zab */
67 unsigned long cl_nodes_bitmap[BITS_TO_LONGS(O2NM_MAX_NODES)];
68 };
69
70 extern struct o2nm_cluster *o2nm_single_cluster;
71
72 u8 o2nm_this_node(void);
73
74 int o2nm_configured_node_map(unsigned long *map, unsigned bytes);
75 struct o2nm_node *o2nm_get_node_by_num(u8 node_num);
76 struct o2nm_node *o2nm_get_node_by_ip(__be32 addr);
77 void o2nm_node_get(struct o2nm_node *node);
78 void o2nm_node_put(struct o2nm_node *node);
79
80 int o2nm_depend_item(struct config_item *item);
81 void o2nm_undepend_item(struct config_item *item);
82 int o2nm_depend_this_node(void);
83 void o2nm_undepend_this_node(void);
84
85 #endif /* O2CLUSTER_NODEMANAGER_H */
86
|
This page was automatically generated by the
LXR engine.
|