Start a Listener/Dialer.

# S3 method for nanoListener
start(x, ...)

# S3 method for nanoDialer
start(x, async = TRUE, ...)



a Listener or Dialer.


not used.


[default TRUE] (applicable to Dialers only) logical flag whether the connection attempt, including any name resolution, is to be made asynchronously. This behaviour is more resilient, but also generally makes diagnosing failures somewhat more difficult. If FALSE, failure, such as if the connection is refused, will be returned immediately, and no further action will be taken.


Invisibly, an integer exit code (zero on success).