Safe Handler Execution #17
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Evaluating 'safe' or 'apiSafe' in a 'filters' block allows the user to mark certain messages for safe handling. When marked thus, any matching handlers for these messages are evaluated without fully dequeueing the message from the priority queue, such that if we receive and handle (i.e. swallow) an exit signal, the message will be available for re-processing. Only once a message has been safely processed will it be fully dequeued from the internal mailbox/queue.
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Evaluating
safeorapiSafein a 'filters' block allows the user to markcertain messages for safe handling. When marked thus, any matching handlers
for these messages are evaluated without fully de-queueing the message from
the priority queue, such that if we receive and handle (i.e. swallow) an
exit signal, the message will be available for re-processing. Only once a
message has been safely processed will it be fully dequeued from the internal
mailbox/queue.