1QUORUM_TRACKSTART(3C)orosync Cluster Engine Programmer's ManuQaUlORUM_TRACKSTART(3)
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6 quorum_trackstart - Enable callbacks notification.
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9 #include <corosync/quorum.h>
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11 int quorum_trackstart(quorum_handle_t *handle, unsigned int flags);
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14 The quorum_trackstart function is used to enable callbacks notification
15 from the quorum API.
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17 Every time the voting configuration changes (eg a node joins or leave
18 the cluster) or the quorum status change, the notification is queued.
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20 The notification is dispatched via quorum_dispatch() function that will
21 execute the callback.
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23 The flags argument is defined by one or more of the following values
24 and values can be bitwise-or'd
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26 #define CS_TRACK_CURRENT 0x01
27 #define CS_TRACK_CHANGES 0x02
28 #define CS_TRACK_CHANGES_ONLY 0x04
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31 This call returns the CS_OK value if successful, otherwise an error is
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35 CS_ERR_TRY_AGAIN Resource temporarily unavailable
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37 CS_ERR_INVALID_PARAM Invalid argument
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39 CS_ERR_ACCESS Permission denied
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41 CS_ERR_LIBRARY The connection failed
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43 CS_ERR_INTERRUPT System call interrupted by a signal
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45 CS_ERR_NOT_SUPPORTED The requested protocol/functionality not supported
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47 CS_ERR_MESSAGE_ERROR Incorrect auth message received
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49 CS_ERR_NO_MEMORY Not enough memory to complete the requested task
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53 quorum_overview(3), quorum_initialize(3), quorum_model_initialize(3),
54 quorum_finalize(3), quorum_getquorate(3), quorum_trackstop(3), quo‐
55 rum_fd_get(3), quorum_dispatch(3), quorum_context_set(3), quorum_con‐
56 text_get(3)
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58corosync Man Page 2021-11-15 QUORUM_TRACKSTART(3)