VOTEQUORUM_TRACKSTCorosync Cluster Engine Programmer'sVOTEQUORUM_TRACKSTART(3)NAMEvotequorum_trackstart - Enable callbacks notification.
SYNOPSIS
#include <corosync/votequorum.h>
int votequorum_trackstart(votequorum_handle_t *handle, uint64_t con‐
text, unsigned int flags);
DESCRIPTION
The votequorum_trackstart function is used to enable callbacks notifi‐
cation from the votequorum API.
Every time the voting configuraton changes (eg a node joins or leave
the cluster) or the quorum status change or the expected votes changes,
the notification is queued.
The notification is dispatched via votequorum_dispatch() function that
will execute the callback.
The context option allows to set a tracking context.
The flags argument is defined by one or more of the following values
and values can be bitwise-or'd
#define CS_TRACK_CURRENT 0x01
#define CS_TRACK_CHANGES 0x02
#define CS_TRACK_CHANGES_ONLY 0x04
RETURN VALUE
This call returns the CS_OK value if successful, otherwise an error is
returned.
ERRORS
CS_ERR_TRY_AGAIN Resource temporarily unavailable
CS_ERR_INVALID_PARAM Invalid argument
CS_ERR_ACCESS Permission denied
CS_ERR_LIBRARY The connection failed
CS_ERR_INTERRUPT System call inturrupted by a signal
CS_ERR_NOT_SUPPORTED The requested protocol/functuality not supported
CS_ERR_MESSAGE_ERROR Incorrect auth message received
CS_ERR_NO_MEMORY Not enough memory to completed the requested task
SEE ALSOvotequorum_overview(8), votequorum_initialize(3), votequorum_final‐
ize(3), votequorum_getinfo(3), votequorum_trackstop(3), votequo‐
rum_fd_get(3), votequorum_dispatch(3), votequorum_context_set(3), vote‐
quorum_context_get(3), votequorum_setexpected(3), votequo‐
rum_setvotes(3)corosync Man Page 2014-05-12 VOTEQUORUM_TRACKSTART(3)
