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BLMOVE is the blocking variant of LMOVE. When source contains elements,
this command behaves exactly like LMOVE. When used inside a MULTI/EXEC
block, this command behaves exactly like LMOVE. When source is empty, Redis
will block the connection until another client pushes to it or until timeout
is reached. A timeout of zero can be used to block indefinitely.
This command comes in place of the now deprecated BRPOPLPUSH. Doing
BLMOVE RIGHT LEFT is equivalent.
See LMOVE for more information.
@return
@bulk-string-reply: the element being popped from source and pushed to
destination. If timeout is reached, a @nil-reply is returned.
Pattern: Reliable queue
Please see the pattern description in the LMOVE documentation.
Pattern: Circular list
Please see the pattern description in the LMOVE documentation.