package require ringutils
if {[ringExists name ?host?=localhost]} {
# Ring exists.
} else {
# Ring does not exist.
}
Returns a boolean true if the ringbuffer name exists in the
host host The host is optional
and defaults to localhost if omitted. If name
does not exist a boolean false is returned.
If host does not exist or is not running a functinoning
ring master daemon, this proc will throw an error.