SYNOPSIS
#include <nng/nng.h>
nng_listener nng_pipe_listener(nng_pipe p);DESCRIPTION
The nng_pipe_listener() function returns the nng_listener
that created the pipe p.
If the pipe was not created by a listener, then the returned value will
have an identifier (nng_listener_id()) of -1.
RETURN VALUES
This function returns the listener that created the pipe, unless it was
not created by a listener, in which case a value initialized with
NNG_LISTENER_INITIALIZER will be returned.
ERRORS
None.