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quorum_trackstart - Man Page

Enable callbacks notification.


#include <corosync/quorum.h>

int quorum_trackstart(quorum_handle_t *handle, unsigned int flags);


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

Return Value

This call returns the CS_OK value if successful, otherwise an error is returned.


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 interrupted by a signal

CS_ERR_NOT_SUPPORTED The requested protocol/functionality not supported

CS_ERR_MESSAGE_ERROR Incorrect auth message received

CS_ERR_NO_MEMORY Not enough memory to complete the requested task

See Also

quorum_overview(3), quorum_initialize(3), quorum_model_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)

Referenced By

quorum_context_get(3), quorum_context_set(3), quorum_dispatch(3), quorum_fd_get(3), quorum_finalize(3), quorum_getquorate(3), quorum_initialize(3), quorum_model_initialize(3), quorum_overview(3), quorum_trackstop(3).

2024-01-24 corosync Man Page Corosync Cluster Engine Programmer's Manual