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TIBCO Rendezvous® 8.8.0

# TibrvFtMonitor

Class

## Declaration

    class TibrvFtMonitor
        TibrvFtmonitor();             // Create empty.
        virtual ~TibrvFtmonitor();    // Destroy and reclaim storage.

## Purpose

Monitor a fault tolerance group.

## Remarks

The constructor creates a hollow object; TibrvFtMonitor::create() makes it operational, and monitors a fault tolerance group.

Monitors are passive—they do not affect the group members in any way.

Rendezvous fault tolerance software queues a monitor event whenever the number of active members in the group changes—either it detects a new heartbeat, or it detects that the heartbeat from a previously active member is now silent, or it receives a message from the fault tolerance component of an active member indicating deactivation or termination.

The monitor callback method receives the number of active members as an argument.

By destroying a monitor object, the program stops monitoring the fault tolerance group. The destructor calls the `destroy` method, unless the C object is already destroyed.

Destroying the queue or transport of a monitor automatically destroys the monitor as well.

Method | Description
Life Cycle
TibrvFtMonitor::create() | Monitor a fault tolerance group.
TibrvFtMonitor::destroy() | Stop monitoring a fault tolerance group, and free associated resources.
TibrvFtMonitor::getHandle() | Extract the C handle of a fault tolerance monitor.
TibrvFtMonitor::isValid() | Test validity of a fault tolerance monitor object.
Properties
TibrvFtMonitor::getClosure() | Extract the closure data of a fault tolerance monitor.
TibrvFtMonitor::getGroupName() | Extract the group name of a fault tolerance monitor.
TibrvFtMonitor::getQueue() | Extract the event queue of a fault tolerance monitor.
TibrvFtMonitor::getTransport() | Extract the transport of a fault tolerance monitor.

## Related Classes

TibrvFtMember

## See Also

TibrvFtMonitorCallback

Subtopics

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