corosync  2.4.2
cpg.h
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1 /*
2  * Copyright (c) 2006-2011 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:
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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 {
88 } cpg_reason_t;
89 
93 typedef enum {
98 
102 typedef enum {
104 } cpg_model_t;
105 
109 struct cpg_address {
110  uint32_t nodeid;
111  uint32_t pid;
112  uint32_t reason;
113 };
114 
115 #define CPG_MAX_NAME_LENGTH 128
116 
119 struct cpg_name {
120  uint32_t length;
122 };
123 
124 #define CPG_MEMBERS_MAX 128
125 
130  struct cpg_name group;
131  uint32_t nodeid;
132  uint32_t pid;
133 };
134 
138 struct cpg_ring_id {
139  uint32_t nodeid;
140  uint64_t seq;
141 };
142 
146 typedef void (*cpg_deliver_fn_t) (
147  cpg_handle_t handle,
148  const struct cpg_name *group_name,
149  uint32_t nodeid,
150  uint32_t pid,
155  void *msg,
156  size_t msg_len);
157 
161 typedef void (*cpg_confchg_fn_t) (
162  cpg_handle_t handle,
163  const struct cpg_name *group_name,
164  const struct cpg_address *member_list, size_t member_list_entries,
165  const struct cpg_address *left_list, size_t left_list_entries,
166  const struct cpg_address *joined_list, size_t joined_list_entries);
167 
171 typedef void (*cpg_totem_confchg_fn_t) (
172  cpg_handle_t handle,
173  struct cpg_ring_id ring_id,
174  uint32_t member_list_entries,
175  const uint32_t *member_list);
176 
180 typedef struct {
184 
188 typedef struct {
191 
192 #define CPG_MODEL_V1_DELIVER_INITIAL_TOTEM_CONF 0x01
193 
197 typedef struct {
202  unsigned int flags;
204 
205 
215  cpg_handle_t *handle,
216  cpg_callbacks_t *callbacks);
217 
227  cpg_handle_t *handle,
228  cpg_model_t model,
229  cpg_model_data_t *model_data,
230  void *context);
231 
238  cpg_handle_t handle);
239 
250  cpg_handle_t handle,
251  int *fd);
252 
260  cpg_handle_t handle,
261  uint32_t *size);
262 
270  cpg_handle_t handle,
271  void **context);
272 
280  cpg_handle_t handle,
281  void *context);
282 
290  cpg_handle_t handle,
291  cs_dispatch_flags_t dispatch_types);
292 
305  cpg_handle_t handle,
306  const struct cpg_name *group);
307 
315  cpg_handle_t handle,
316  const struct cpg_name *group);
317 
328  cpg_handle_t handle,
329  cpg_guarantee_t guarantee,
330  const struct iovec *iovec,
331  unsigned int iov_len);
332 
342  cpg_handle_t handle,
343  struct cpg_name *groupName,
344  struct cpg_address *member_list,
345  int *member_list_entries);
353  cpg_handle_t handle,
354  unsigned int *local_nodeid);
355 
363  cpg_handle_t handle,
364  cpg_flow_control_state_t *flow_control_enabled);
365 
374  cpg_handle_t handle,
375  size_t size,
376  void **buffer);
377 
385  cpg_handle_t handle,
386  void *buffer);
387 
397  cpg_handle_t handle,
398  cpg_guarantee_t guarantee,
399  void *msg,
400  size_t msg_len);
401 
411  cpg_handle_t handle,
412  cpg_iteration_type_t iteration_type,
413  const struct cpg_name *group,
414  cpg_iteration_handle_t *cpg_iteration_handle);
415 
423  cpg_iteration_handle_t handle,
424  struct cpg_iteration_description_t *description);
425 
432  cpg_iteration_handle_t handle);
433 
434 #ifdef __cplusplus
435 }
436 #endif
437 
438 #endif /* COROSYNC_CPG_H_DEFINED */
uint32_t pid
Definition: cpg.h:111
The cpg_ring_id struct.
Definition: cpg.h:138
The cpg_callbacks_t struct.
Definition: cpg.h:180
cs_error_t cpg_iteration_next(cpg_iteration_handle_t handle, struct cpg_iteration_description_t *description)
cpg_iteration_next
Definition: lib/cpg.c:1278
cs_error_t cpg_flow_control_state_get(cpg_handle_t handle, cpg_flow_control_state_t *flow_control_enabled)
cpg_flow_control_state_get
Definition: lib/cpg.c:789
#define CPG_MAX_NAME_LENGTH
Definition: cpg.h:115
cpg_deliver_fn_t cpg_deliver_fn
Definition: cpg.h:199
cpg_flow_control_state_t
The cpg_flow_control_state_t enum.
Definition: cpg.h:73
cs_error_t cpg_context_set(cpg_handle_t handle, void *context)
Set contexts for a CPG handle.
Definition: lib/cpg.c:348
uint32_t value
cpg_confchg_fn_t cpg_confchg_fn
Definition: cpg.h:182
The cpg_name struct.
Definition: cpg.h:119
cs_error_t cpg_local_get(cpg_handle_t handle, unsigned int *local_nodeid)
cpg_local_get
Definition: lib/cpg.c:751
cs_error_t cpg_membership_get(cpg_handle_t handle, struct cpg_name *groupName, struct cpg_address *member_list, int *member_list_entries)
Get membership information from cpg.
Definition: lib/cpg.c:688
The cpg_address struct.
Definition: cpg.h:109
cs_error_t cpg_iteration_finalize(cpg_iteration_handle_t handle)
cpg_iteration_finalize
Definition: lib/cpg.c:1328
int guarantee
Definition: totemsrp.c:66
The cpg_iteration_description_t struct.
Definition: cpg.h:129
cpg_guarantee_t
The cpg_guarantee_t enum.
Definition: cpg.h:63
cpg_confchg_fn_t cpg_confchg_fn
Definition: cpg.h:200
cpg_reason_t
The cpg_reason_t enum.
Definition: cpg.h:82
cs_error_t cpg_fd_get(cpg_handle_t handle, int *fd)
Get a file descriptor on which to poll.
Definition: lib/cpg.c:291
cpg_model_t model
Definition: cpg.h:198
void(* cpg_confchg_fn_t)(cpg_handle_t handle, const struct cpg_name *group_name, const struct cpg_address *member_list, size_t member_list_entries, const struct cpg_address *left_list, size_t left_list_entries, const struct cpg_address *joined_list, size_t joined_list_entries)
The cpg_confchg_fn_t callback.
Definition: cpg.h:161
cs_error_t cpg_zcb_alloc(cpg_handle_t handle, size_t size, void **buffer)
cpg_zcb_alloc
Definition: lib/cpg.c:889
cpg_totem_confchg_fn_t cpg_totem_confchg_fn
Definition: cpg.h:201
unsigned int flags
Definition: cpg.h:202
cs_error_t cpg_zcb_mcast_joined(cpg_handle_t handle, cpg_guarantee_t guarantee, void *msg, size_t msg_len)
cpg_zcb_mcast_joined
Definition: lib/cpg.c:995
void(* cpg_totem_confchg_fn_t)(cpg_handle_t handle, struct cpg_ring_id ring_id, uint32_t member_list_entries, const uint32_t *member_list)
The cpg_totem_confchg_fn_t callback.
Definition: cpg.h:171
not implemented
Definition: cpg.h:67
uint64_t cpg_handle_t
cpg_handle_t
Definition: cpg.h:53
cs_error_t cpg_mcast_joined(cpg_handle_t handle, cpg_guarantee_t guarantee, const struct iovec *iovec, unsigned int iov_len)
Multicast to groups joined with cpg_join.
Definition: lib/cpg.c:1137
cs_error_t
The cs_error_t enum.
Definition: corotypes.h:94
cs_error_t cpg_dispatch(cpg_handle_t handle, cs_dispatch_flags_t dispatch_types)
Dispatch messages and configuration changes.
Definition: lib/cpg.c:367
cs_dispatch_flags_t
The cs_dispatch_flags_t enum.
Definition: corotypes.h:80
uint32_t nodeid
Definition: cpg.h:110
cs_error_t cpg_join(cpg_handle_t handle, const struct cpg_name *group)
Join one or more groups.
Definition: lib/cpg.c:589
uint32_t nodeid
Definition: cpg.h:139
not implemented
Definition: cpg.h:64
cpg_model_t model
Definition: cpg.h:189
cpg_iteration_type_t
The cpg_iteration_type_t enum.
Definition: cpg.h:93
flow control is enabled - new messages should not be sent
Definition: cpg.h:75
flow control is disabled - new messages may be sent
Definition: cpg.h:74
void(* cpg_deliver_fn_t)(cpg_handle_t handle, const struct cpg_name *group_name, uint32_t nodeid, uint32_t pid, void *msg, size_t msg_len)
The cpg_deliver_fn_t callback.
Definition: cpg.h:146
cs_error_t cpg_finalize(cpg_handle_t handle)
Close the cpg handle.
Definition: lib/cpg.c:246
uint32_t reason
Definition: cpg.h:112
cs_error_t cpg_leave(cpg_handle_t handle, const struct cpg_name *group)
Leave one or more groups.
Definition: lib/cpg.c:643
cs_error_t cpg_model_initialize(cpg_handle_t *handle, cpg_model_t model, cpg_model_data_t *model_data, void *context)
Create a new cpg connection, initialize with model.
Definition: lib/cpg.c:184
cs_error_t cpg_context_get(cpg_handle_t handle, void **context)
Get contexts for a CPG handle.
Definition: lib/cpg.c:329
uint64_t cpg_iteration_handle_t
cpg_iteration_handle_t
Definition: cpg.h:58
uint32_t length
Definition: cpg.h:120
cs_error_t cpg_initialize(cpg_handle_t *handle, cpg_callbacks_t *callbacks)
Create a new cpg connection.
Definition: lib/cpg.c:168
The cpg_model_v1_data_t struct.
Definition: cpg.h:197
cpg_model_t
The cpg_model_t enum.
Definition: cpg.h:102
The cpg_model_data_t struct.
Definition: cpg.h:188
cs_error_t cpg_iteration_initialize(cpg_handle_t handle, cpg_iteration_type_t iteration_type, const struct cpg_name *group, cpg_iteration_handle_t *cpg_iteration_handle)
cpg_iteration_initialize
Definition: lib/cpg.c:1185
struct memb_ring_id ring_id
Definition: totemsrp.c:64
same as agreed
Definition: cpg.h:65
uint64_t seq
Definition: cpg.h:140
cpg_deliver_fn_t cpg_deliver_fn
Definition: cpg.h:181
cs_error_t cpg_zcb_free(cpg_handle_t handle, void *buffer)
cpg_zcb_free
Definition: lib/cpg.c:946
cs_error_t cpg_max_atomic_msgsize_get(cpg_handle_t handle, uint32_t *size)
Get maximum size of a message that will not be fragmented.
Definition: lib/cpg.c:310