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ocfs2
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heartbeat.h

heartbeat.h 2.3 KB
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  1. /* -*- mode: c; c-basic-offset: 8; -*-
    2. 

  2.  * vim: noexpandtab sw=8 ts=8 sts=0:
    3. 

  3.  *
    4. 

  4.  * heartbeat.h
    5. 

  5.  *
    6. 

  6.  * Function prototypes
    7. 

  7.  *
    8. 

  8.  * Copyright (C) 2002, 2004 Oracle.  All rights reserved.
    9. 

  9.  *
    10. 

  10.  * This program is free software; you can redistribute it and/or
    11. 

  11.  * modify it under the terms of the GNU General Public
    12. 

  12.  * License as published by the Free Software Foundation; either
    13. 

  13.  * version 2 of the License, or (at your option) any later version.
    14. 

  14.  *
    15. 

  15.  * This program is distributed in the hope that it will be useful,
    16. 

  16.  * but WITHOUT ANY WARRANTY; without even the implied warranty of
    17. 

  17.  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
    18. 

  18.  * General Public License for more details.
    19. 

  19.  *
    20. 

  20.  * You should have received a copy of the GNU General Public
    21. 

  21.  * License along with this program; if not, write to the
    22. 

  22.  * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
    23. 

  23.  * Boston, MA 021110-1307, USA.
    24. 

  24.  */
    25. 

  25. 

  26. #ifndef OCFS2_HEARTBEAT_H
    27. 

  27. #define OCFS2_HEARTBEAT_H
    28. 

  28. 

  29. void ocfs2_init_node_maps(struct ocfs2_super *osb);
    30. 

  30. 

  31. void ocfs2_setup_hb_callbacks(struct ocfs2_super *osb);
    32. 

  32. int ocfs2_register_hb_callbacks(struct ocfs2_super *osb);
    33. 

  33. void ocfs2_clear_hb_callbacks(struct ocfs2_super *osb);
    34. 

  34. void ocfs2_stop_heartbeat(struct ocfs2_super *osb);
    35. 

  35. 

  36. /* node map functions - used to keep track of mounted and in-recovery
    37. 

  37.  * nodes. */
    38. 

  38. void ocfs2_node_map_init(struct ocfs2_node_map *map);
    39. 

  39. int ocfs2_node_map_is_empty(struct ocfs2_super *osb,
    40. 

  40. 			    struct ocfs2_node_map *map);
    41. 

  41. void ocfs2_node_map_set_bit(struct ocfs2_super *osb,
    42. 

  42. 			    struct ocfs2_node_map *map,
    43. 

  43. 			    int bit);
    44. 

  44. void ocfs2_node_map_clear_bit(struct ocfs2_super *osb,
    45. 

  45. 			      struct ocfs2_node_map *map,
    46. 

  46. 			      int bit);
    47. 

  47. int ocfs2_node_map_test_bit(struct ocfs2_super *osb,
    48. 

  48. 			    struct ocfs2_node_map *map,
    49. 

  49. 			    int bit);
    50. 

  50. int ocfs2_node_map_iterate(struct ocfs2_super *osb,
    51. 

  51. 			   struct ocfs2_node_map *map,
    52. 

  52. 			   int idx);
    53. 

  53. static inline int ocfs2_node_map_first_set_bit(struct ocfs2_super *osb,
    54. 

  54. 					       struct ocfs2_node_map *map)
    55. 

  55. {
    56. 

  56. 	return ocfs2_node_map_iterate(osb, map, 0);
    57. 

  57. }
    58. 

  58. int ocfs2_recovery_map_set(struct ocfs2_super *osb,
    59. 

  59. 			   int num);
    60. 

  60. void ocfs2_recovery_map_clear(struct ocfs2_super *osb,
    61. 

  61. 			      int num);
    62. 

  62. /* returns 1 if bit is the only bit set in target, 0 otherwise */
    63. 

  63. int ocfs2_node_map_is_only(struct ocfs2_super *osb,
    64. 

  64. 			   struct ocfs2_node_map *target,
    65. 

  65. 			   int bit);
    66. 

  66. 

  67. #endif /* OCFS2_HEARTBEAT_H */
    68.