qdevice-net-algo-ffsplit.c 5.4 KB

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  1. /*
  2. * Copyright (c) 2015-2016 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
  17. * and/or other materials provided with the distribution.
  18. * - Neither the name of the Red Hat, Inc. nor the names of its
  19. * contributors may be used to endorse or promote products derived from this
  20. * software without specific prior written permission.
  21. *
  22. * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
  23. * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  24. * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  25. * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
  26. * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  27. * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  28. * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  29. * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  30. * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  31. * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
  32. * THE POSSIBILITY OF SUCH DAMAGE.
  33. */
  34. #include <sys/types.h>
  35. #include <string.h>
  36. #include "qdevice-net-algo-ffsplit.h"
  37. #include "qdevice-log.h"
  38. #include "qdevice-net-send.h"
  39. #include "qdevice-net-cast-vote-timer.h"
  40. int
  41. qdevice_net_algo_ffsplit_init(struct qdevice_net_instance *instance)
  42. {
  43. return (0);
  44. }
  45. int
  46. qdevice_net_algo_ffsplit_connected(struct qdevice_net_instance *instance)
  47. {
  48. return (0);
  49. }
  50. int
  51. qdevice_net_algo_ffsplit_config_node_list_changed(struct qdevice_net_instance *instance,
  52. const struct node_list *nlist, int config_version_set, uint64_t config_version,
  53. int *send_node_list, enum tlv_vote *vote)
  54. {
  55. return (0);
  56. }
  57. int
  58. qdevice_net_algo_ffsplit_votequorum_node_list_notify(struct qdevice_net_instance *instance,
  59. const struct tlv_ring_id *ring_id, uint32_t node_list_entries, uint32_t node_list[],
  60. int *send_node_list, enum tlv_vote *vote)
  61. {
  62. return (0);
  63. }
  64. int
  65. qdevice_net_algo_ffsplit_votequorum_quorum_notify(struct qdevice_net_instance *instance,
  66. uint32_t quorate, uint32_t node_list_entries, votequorum_node_t node_list[], int *send_node_list,
  67. enum tlv_vote *vote)
  68. {
  69. return (0);
  70. }
  71. int
  72. qdevice_net_algo_ffsplit_config_node_list_reply_received(struct qdevice_net_instance *instance,
  73. uint32_t seq_number, int initial, enum tlv_vote *vote)
  74. {
  75. return (0);
  76. }
  77. int
  78. qdevice_net_algo_ffsplit_membership_node_list_reply_received(struct qdevice_net_instance *instance,
  79. uint32_t seq_number, const struct tlv_ring_id *ring_id, enum tlv_vote *vote)
  80. {
  81. return (0);
  82. }
  83. int
  84. qdevice_net_algo_ffsplit_quorum_node_list_reply_received(struct qdevice_net_instance *instance,
  85. uint32_t seq_number, enum tlv_vote *vote)
  86. {
  87. return (0);
  88. }
  89. int
  90. qdevice_net_algo_ffsplit_ask_for_vote_reply_received(struct qdevice_net_instance *instance,
  91. uint32_t seq_number, enum tlv_vote *vote)
  92. {
  93. return (0);
  94. }
  95. int
  96. qdevice_net_algo_ffsplit_vote_info_received(struct qdevice_net_instance *instance,
  97. uint32_t seq_number, enum tlv_vote *vote)
  98. {
  99. return (0);
  100. }
  101. int
  102. qdevice_net_algo_ffsplit_echo_reply_received(struct qdevice_net_instance *instance,
  103. uint32_t seq_number, int is_expected_seq_number)
  104. {
  105. return (is_expected_seq_number ? 0 : -1);
  106. }
  107. int
  108. qdevice_net_algo_ffsplit_echo_reply_not_received(struct qdevice_net_instance *instance)
  109. {
  110. return (-1);
  111. }
  112. int
  113. qdevice_net_algo_ffsplit_disconnected(struct qdevice_net_instance *instance,
  114. enum qdevice_net_disconnect_reason disconnect_reason, int *try_reconnect)
  115. {
  116. return (0);
  117. }
  118. void
  119. qdevice_net_algo_ffsplit_destroy(struct qdevice_net_instance *instance)
  120. {
  121. }
  122. static struct qdevice_net_algorithm qdevice_net_algo_ffsplit = {
  123. .init = qdevice_net_algo_ffsplit_init,
  124. .connected = qdevice_net_algo_ffsplit_connected,
  125. .config_node_list_changed = qdevice_net_algo_ffsplit_config_node_list_changed,
  126. .votequorum_node_list_notify = qdevice_net_algo_ffsplit_votequorum_node_list_notify,
  127. .votequorum_quorum_notify = qdevice_net_algo_ffsplit_votequorum_quorum_notify,
  128. .config_node_list_reply_received = qdevice_net_algo_ffsplit_config_node_list_reply_received,
  129. .membership_node_list_reply_received = qdevice_net_algo_ffsplit_membership_node_list_reply_received,
  130. .quorum_node_list_reply_received = qdevice_net_algo_ffsplit_quorum_node_list_reply_received,
  131. .ask_for_vote_reply_received = qdevice_net_algo_ffsplit_ask_for_vote_reply_received,
  132. .vote_info_received = qdevice_net_algo_ffsplit_vote_info_received,
  133. .echo_reply_received = qdevice_net_algo_ffsplit_echo_reply_received,
  134. .echo_reply_not_received = qdevice_net_algo_ffsplit_echo_reply_not_received,
  135. .disconnected = qdevice_net_algo_ffsplit_disconnected,
  136. .destroy = qdevice_net_algo_ffsplit_destroy,
  137. };
  138. int
  139. qdevice_net_algo_ffsplit_register(void)
  140. {
  141. return (qdevice_net_algorithm_register(TLV_DECISION_ALGORITHM_TYPE_FFSPLIT, &qdevice_net_algo_ffsplit));
  142. }