Re: READ_TIMEOUT problem

[Andres MERE]

Halloo,


My GAWK is 4.1.4 (Ubuntu 18.04). Newest GAWK (5.1) behaves the same way.

Yes, it is waiting for the socket open. I do understand it now (I had to 
think twice).

I really must take a look at the gawkextlib select library.


Many thanks,
Andres

On 16.04.2020 21:56, address@hidden wrote:
> Hi.
>
> "Andres MERE" <address@hidden> wrote:
>
> > Halloo,I am trying to set up a (server) process listening incoming
> > connections (and doing something useful). Simple experiment like
> >    gawk 'BEGIN { n = "/inet/tcp/8888/0/0"; PROCINFO[n, "READ_TIMEOUT"] = 1000; if ((n 
> > |& getline) > 0) { print } }'
> > leads to a blocking read. Can anyone explain the reasons for this? Am
> > I misunderstanding something?
> > Best regards,
> > Andres
>
> It looks to me like it's hanging in the socket open, waiting for
> a connect.  As soon as you do 'telnet localhost 8888' the connect
> will complete and then the timeout kicks in.
>
> In the future please:
>
> 1. Try to use text only mail, and not HTML going forward,
>
> 2. Specify the version of gawk (from gawk --version) and operating
>     system you're using.
>         - If Windows, what is the provenance of the gawk version?
>
> Hope this helps,
>
> Thanks,
>
> Arnold