1QUORUM_DISPATCH(3)Corosync Cluster Engine Programmer's ManualQUORUM_DISPATCH(3)
2
3
4
6 quorum_dispatch - Dispatches callbacks from the quorum service
7
9 #include <corosync/quorum.h>
10
11 int quorum_dispatch(quorum_handle_t handle, cs_dispatch_flags_t *dis‐
12 patch_types);
13
15 The quorum_dispatch function is used to dispatch configuration changes.
16
17 Each application may have several connections to the quorum API. Each
18 application uses the handle argument to uniquely identify the connec‐
19 tion.
20
21 The dispatch_types argument is used to identify the type of dispatch to
22 execute. The possible types are defined by the structure:
23
24 typedef enum {
25 CS_DISPATCH_ONE = 1,
26 CS_DISPATCH_ALL = 2,
27 CS_DISPATCH_BLOCKING = 3,
28 CS_DISPATCH_ONE_NONBLOCKING = 4
29 } cs_dispatch_flags_t;
30
31 The dispatch values have the following meanings:
32
33 CS_DISPATCH_ONE
34 Dispatch at least one callback, blocking until the callback is
35 dispatched.
36
37 CS_DISPATCH_ALL
38 Dispatch all waiting callbacks without blocking to wait for any
39 callbacks.
40
41 CS_DISPATCH_BLOCKING
42 Dispatch all callbacks blocking indefinitely. This is used in a
43 threaded program where a thread is created, and then quorum_dis‐
44 patch() is called immediately from the created thread to execute
45 callbacks.
46
47 CS_DISPATCH_ONE_NONBLOCKING
48 Dispatch at most one callback. If there is no pending callback,
49 CS_ERR_TRY_AGAIN is returned.
50
51
53 This call returns the CS_OK value if successful, otherwise an error is
54 returned.
55
57 CS_ERR_TRY_AGAIN Resource temporarily unavailable
58
59 CS_ERR_INVALID_PARAM Invalid argument
60
61 CS_ERR_ACCESS Permission denied
62
63 CS_ERR_LIBRARY The connection failed
64
65 CS_ERR_INTERRUPT System call interrupted by a signal
66
67 CS_ERR_NOT_SUPPORTED The requested protocol/functionality not supported
68
69 CS_ERR_MESSAGE_ERROR Incorrect auth message received
70
71 CS_ERR_NO_MEMORY Not enough memory to complete the requested task
72
73
75 quorum_overview(3), quorum_initialize(3), quorum_model_initialize(3),
76 quorum_finalize(3), quorum_getquorate(3), quorum_trackstart(3), quo‐
77 rum_trackstop(3), quorum_fd_get(3), quorum_context_set(3), quorum_con‐
78 text_get(3)
79
80corosync Man Page 2021-06-03 QUORUM_DISPATCH(3)