nodemanager.h 2.5 KB

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  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. #ifndef O2CLUSTER_NODEMANAGER_H
  27. #define O2CLUSTER_NODEMANAGER_H
  28. #include "ocfs2_nodemanager.h"
  29. /* This totally doesn't belong here. */
  30. #include <linux/configfs.h>
  31. #include <linux/rbtree.h>
  32. #define FS_OCFS2_NM 1
  33. const char *o2nm_get_hb_ctl_path(void);
  34. struct o2nm_node {
  35. spinlock_t nd_lock;
  36. struct config_item nd_item;
  37. char nd_name[O2NM_MAX_NAME_LEN+1]; /* replace? */
  38. __u8 nd_num;
  39. /* only one address per node, as attributes, for now. */
  40. __be32 nd_ipv4_address;
  41. __be16 nd_ipv4_port;
  42. struct rb_node nd_ip_node;
  43. /* there can be only one local node for now */
  44. int nd_local;
  45. unsigned long nd_set_attributes;
  46. };
  47. struct o2nm_cluster {
  48. struct config_group cl_group;
  49. unsigned cl_has_local:1;
  50. u8 cl_local_node;
  51. rwlock_t cl_nodes_lock;
  52. struct o2nm_node *cl_nodes[O2NM_MAX_NODES];
  53. struct rb_root cl_node_ip_tree;
  54. unsigned int cl_idle_timeout_ms;
  55. unsigned int cl_keepalive_delay_ms;
  56. unsigned int cl_reconnect_delay_ms;
  57. /* this bitmap is part of a hack for disk bitmap.. will go eventually. - zab */
  58. unsigned long cl_nodes_bitmap[BITS_TO_LONGS(O2NM_MAX_NODES)];
  59. };
  60. extern struct o2nm_cluster *o2nm_single_cluster;
  61. u8 o2nm_this_node(void);
  62. int o2nm_configured_node_map(unsigned long *map, unsigned bytes);
  63. struct o2nm_node *o2nm_get_node_by_num(u8 node_num);
  64. struct o2nm_node *o2nm_get_node_by_ip(__be32 addr);
  65. void o2nm_node_get(struct o2nm_node *node);
  66. void o2nm_node_put(struct o2nm_node *node);
  67. int o2nm_depend_item(struct config_item *item);
  68. void o2nm_undepend_item(struct config_item *item);
  69. int o2nm_depend_this_node(void);
  70. void o2nm_undepend_this_node(void);
  71. #endif /* O2CLUSTER_NODEMANAGER_H */