corosync  2.4.5
cpg.h
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1 /*
2  * Copyright (c) 2006-2019 Red Hat, Inc.
3  *
4  * All rights reserved.
5  *
6  * Author: Christine Caulfield (ccaulfi@redhat.com)
7  * Author: Jan Friesse (jfriesse@redhat.com)
8  *
9  * This software licensed under BSD license, the text of which follows:
10  *
11  * Redistribution and use in source and binary forms, with or without
12  * modification, are permitted provided that the following conditions are met:
13  *
14  * - Redistributions of source code must retain the above copyright notice,
15  * this list of conditions and the following disclaimer.
16  * - Redistributions in binary form must reproduce the above copyright notice,
17  * this list of conditions and the following disclaimer in the documentation
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19  * - Neither the name of the MontaVista Software, Inc. nor the names of its
20  * contributors may be used to endorse or promote products derived from this
21  * software without specific prior written permission.
22  *
23  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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25  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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34  */
35 #ifndef COROSYNC_CPG_H_DEFINED
36 #define COROSYNC_CPG_H_DEFINED
37 
38 #include <netinet/in.h>
39 #include <corosync/corotypes.h>
40 
41 #ifdef __cplusplus
42 extern "C" {
43 #endif
44 
53 typedef uint64_t cpg_handle_t;
54 
58 typedef uint64_t cpg_iteration_handle_t;
59 
63 typedef enum {
69 
73 typedef enum {
77 
78 
82 typedef enum {
89 } cpg_reason_t;
90 
94 typedef enum {
99 
103 typedef enum {
105 } cpg_model_t;
106 
110 struct cpg_address {
111  uint32_t nodeid;
112  uint32_t pid;
113  uint32_t reason;
114 };
115 
116 #define CPG_MAX_NAME_LENGTH 128
117 
120 struct cpg_name {
121  uint32_t length;
123 };
124 
125 #define CPG_MEMBERS_MAX 128
126 
131  struct cpg_name group;
132  uint32_t nodeid;
133  uint32_t pid;
134 };
135 
139 struct cpg_ring_id {
140  uint32_t nodeid;
141  uint64_t seq;
142 };
143 
147 typedef void (*cpg_deliver_fn_t) (
148  cpg_handle_t handle,
149  const struct cpg_name *group_name,
150  uint32_t nodeid,
151  uint32_t pid,
156  void *msg,
157  size_t msg_len);
158 
162 typedef void (*cpg_confchg_fn_t) (
163  cpg_handle_t handle,
164  const struct cpg_name *group_name,
165  const struct cpg_address *member_list, size_t member_list_entries,
166  const struct cpg_address *left_list, size_t left_list_entries,
167  const struct cpg_address *joined_list, size_t joined_list_entries);
168 
172 typedef void (*cpg_totem_confchg_fn_t) (
173  cpg_handle_t handle,
174  struct cpg_ring_id ring_id,
175  uint32_t member_list_entries,
176  const uint32_t *member_list);
177 
181 typedef struct {
185 
189 typedef struct {
192 
193 #define CPG_MODEL_V1_DELIVER_INITIAL_TOTEM_CONF 0x01
194 
198 typedef struct {
203  unsigned int flags;
205 
206 
216  cpg_handle_t *handle,
217  cpg_callbacks_t *callbacks);
218 
228  cpg_handle_t *handle,
229  cpg_model_t model,
230  cpg_model_data_t *model_data,
231  void *context);
232 
239  cpg_handle_t handle);
240 
251  cpg_handle_t handle,
252  int *fd);
253 
261  cpg_handle_t handle,
262  uint32_t *size);
263 
271  cpg_handle_t handle,
272  void **context);
273 
281  cpg_handle_t handle,
282  void *context);
283 
291  cpg_handle_t handle,
292  cs_dispatch_flags_t dispatch_types);
293 
306  cpg_handle_t handle,
307  const struct cpg_name *group);
308 
316  cpg_handle_t handle,
317  const struct cpg_name *group);
318 
329  cpg_handle_t handle,
331  const struct iovec *iovec,
332  unsigned int iov_len);
333 
343  cpg_handle_t handle,
344  struct cpg_name *groupName,
345  struct cpg_address *member_list,
346  int *member_list_entries);
354  cpg_handle_t handle,
355  unsigned int *local_nodeid);
356 
364  cpg_handle_t handle,
365  cpg_flow_control_state_t *flow_control_enabled);
366 
375  cpg_handle_t handle,
376  size_t size,
377  void **buffer);
378 
386  cpg_handle_t handle,
387  void *buffer);
388 
398  cpg_handle_t handle,
400  void *msg,
401  size_t msg_len);
402 
412  cpg_handle_t handle,
413  cpg_iteration_type_t iteration_type,
414  const struct cpg_name *group,
415  cpg_iteration_handle_t *cpg_iteration_handle);
416 
424  cpg_iteration_handle_t handle,
425  struct cpg_iteration_description_t *description);
426 
433  cpg_iteration_handle_t handle);
434 
435 #ifdef __cplusplus
436 }
437 #endif
438 
439 #endif /* COROSYNC_CPG_H_DEFINED */