brpoplpush
BRPOPLPUSH
BRPOPLPUSH source destination timeout
BRPOPLPUSH is the blocking variant of RPOPLPUSH. When source
contains elements, this command behaves exactly like RPOPLPUSH. When used inside a MULTI/EXEC block, this command behaves exactly like RPOPLPUSH. 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.
See RPOPLPUSH for more information.