NAME¶
quorum_trackstart - Enable callbacks notification.
SYNOPSIS¶
#include <corosync/quorum.h>
int quorum_trackstart(quorum_handle_t *handle, unsigned int
flags);
DESCRIPTION¶
The
quorum_trackstart function is used to enable callbacks notification
from the quorum API.
Every time the voting configuration changes (eg a node joins or leave the
cluster) or the quorum status change, the notification is queued.
The notification is dispatched via
quorum_dispatch() function that will
execute the callback.
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 ALSO¶
quorum_overview(8),
quorum_initialize(3),
quorum_finalize(3),
quorum_getquorate(3),
quorum_trackstop(3),
quorum_fd_get(3),
quorum_dispatch(3),
quorum_context_set(3),
quorum_context_get(3)
