confdb_key_get.3 3.1 KB

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  1. .\"/*
  2. .\" * Copyright (c) 2012 Red Hat, Inc.
  3. .\" *
  4. .\" * All rights reserved.
  5. .\" *
  6. .\" * Author: Jan Friesse <jfriesse@redhat.com>
  7. .\" *
  8. .\" * This software licensed under BSD license, the text of which follows:
  9. .\" *
  10. .\" * Redistribution and use in source and binary forms, with or without
  11. .\" * modification, are permitted provided that the following conditions are met:
  12. .\" *
  13. .\" * - Redistributions of source code must retain the above copyright notice,
  14. .\" * this list of conditions and the following disclaimer.
  15. .\" * - Redistributions in binary form must reproduce the above copyright notice,
  16. .\" * this list of conditions and the following disclaimer in the documentation
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  19. .\" * contributors may be used to endorse or promote products derived from this
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  22. .\" * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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  34. .TH CONFDB_KEY_GET 3 2012-11-07 "corosync Man Page" "Corosync Cluster Engine Programmer's Manual"
  35. .SH NAME
  36. confdb_key_get \- Retreive key value from the Configuration Database
  37. .SH SYNOPSIS
  38. .B #include <corosync/confdb.h>
  39. .sp
  40. .BI "cs_error_t confdb_key_get (confdb_handle_t " handle ",
  41. .BI hdb_handle_t " parent_object_handle ",
  42. .BI void " *key_name ",
  43. .BI size_t " key_name_len ",
  44. .BI void " *value ",
  45. .BI size_t " *value_len"); "
  46. .SH DESCRIPTION
  47. The
  48. .B confdb_key_get
  49. function retreive key value for key with given name from specified parent object.
  50. .BR
  51. Unlike objects, keys do not have handles, so you can't go directly to a non-unique key
  52. without using the
  53. .B confdb_key_iter
  54. function, so
  55. .B confdb_key_get
  56. returns only first found key.
  57. .SH RETURN VALUE
  58. This call returns the CONFDB_OK value if successful, otherwise an error is returned.
  59. .PP
  60. .SH ERRORS
  61. The errors are undocumented.
  62. .SH "SEE ALSO"
  63. .BR confdb_overview (8),
  64. .BR confdb_initialize (3),
  65. .BR confdb_finalize (3),
  66. .BR confdb_dispatch (3),
  67. .BR confdb_object_create (3),
  68. .BR confdb_object_destroy (3),
  69. .BR confdb_object_parent_get (3),
  70. .BR confdb_key_create (3),
  71. .BR confdb_key_delete (3),
  72. .BR confdb_key_get (3),
  73. .BR confdb_key_replace (3),
  74. .BR confdb_object_find_start (3),
  75. .BR confdb_object_find (3),
  76. .BR confdb_object_iter_start (3),
  77. .BR confdb_object_iter (3),
  78. .BR confdb_key_iter_start (3),
  79. .BR confdb_key_iter (3),
  80. .PP