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= ranch:stop_listener(3)

== Name

ranch:stop_listener - Stop a listener

== Description

[source,erlang]
----
stop_listener(Ref :: ranch_ref())
    -> ok | {error, not_found}
----

Stop a listener.

The listener is stopped gracefully, first by closing the
listening port, then by stopping the connection processes.
These processes are stopped according to the `shutdown`
transport option, which may be set to brutally kill all
connection processes or give them some time to stop properly.

In order for the connection processes to exit gracefully,
they need to trap exit signals and stop before the configured
shutdown timeout. If greater control over the shutdown is
required the functions link:man:ranch:suspend_listener(3)[ranch:suspend_listener(3)]
and link:man:ranch:wait_for_connections(3)[ranch:wait_for_connections(3)]
can be used.

This function does not return until the listener is
completely stopped.

== Arguments

Ref::

The listener name.

== Return value

The atom `ok` is returned on success.

An error tuple is returned when the listener is not found.

== Examples

.Stop a listener
[source,erlang]
----
ok = ranch:stop_listener(example).
----

== See also

link:man:ranch:start_listener(3)[ranch:start_listener(3)],
link:man:ranch:child_spec(3)[ranch:child_spec(3)],
link:man:ranch:suspend_listener(3)[ranch:suspend_listener(3)],
link:man:ranch(3)[ranch(3)]