NAME

JLog - Perl extension for the jlog journaled queueing system

DESCRIPTION

Parent class for JLog::Reader and JLog::Writer. You probably want to be looking at those instead. JLog is a durable, reliable, publish-and-subscribe queueing system.

INTERFACE

Subscriber Management

A JLog must have subscribers to be functional. Without a subscriber, a queue may be purged, as there are no interested readers. For this reason it is highly recommended that you add a subscriber before writing to a log.

add_subscriber

  $w->add_subscriber( $name, [ $flag ] );

Add a subscriber to the JLog queue.

$name: The name of the subscriber.
$flag: An optional flag dictating where the subscriber should be marked interested from. The default is JLog::JLOG_BEGIN. The other available option is JLog::JLOG_END.

remove_subscriber

  $w->remove_subscriber ( $name );

Remove a subscriber to the JLog queue.

$name: The name of the subscriber.

list_subscribers

  @subscribers = $w->list_subscribers;

Return a list of all the subscribers to a JLog queue.

Internals

alter_journal_size

This function is a stub provided for backwards compatibility. It will always return false.

$size: The desired size in bytes.

raw_size

  $size = $w->raw_size;

The size of the existing journal (including checkpointed but unpurged messages in the current journal file), in bytes.

NAME

DESCRIPTION

INTERFACE

Subscriber Management

Internals

SEE ALSO

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