open-streamer-p

Purpose
Determine if a journal or network streamer is open.

Package   :gbbopen

Module   :streaming

Arguments and values

Returns
True if the streamer is open; otherwise nil.

See also
    close-streamer
    find-streamer-node
    make-journal-streamer
    open-network-streamer
    stream-of

Example
Check if the network streamer *streamer* is open:

  > (open-streamer-p *streamer*)
  t

open-streamer-p