On Wed, Jul 22, 2009 at 12:03 PM, Marc Herbert <marc.herbert+n...@gmail.com<marc.herbert%2bn...@gmail.com> > wrote:
> Hi, > > It seems polling using "read -t 0" is not supported. Apparently because > the implementation is based on alarm() (as opposed to be based on > poll()/select()). > > - is this true? > - if yes, doesn't this deserve more explicit documentation? > > Would anyone know about an alternative, convenient way to poll() ? Thanks > in advance! > > Cheers, > > Marc > > > read -t 0 is a new feature of bash 4: "If timeout is 0, read returns success if input is available on the specified file descriptor, failure otherwise."
