Is it related to the issue we have from time to time when we load software with Metacello from countries where bandwidth is limited. Regards, On Thu, Apr 16, 2020 at 4:17 AM Sven Van Caekenberghe <sven@stfx.eu> wrote:

Hi,

This is a known problem: the standard NetNameResolver (which depends on some primitives) hangs when your network connection is bad (or in a dubious state).

This is very annoying, if your test is 'do I have an internet connection'.

This is the reason why I played with https://github.com/svenvc/NeoDNS doing a pure Pharo DNS client (based on datagrams) - this one does never hang. But doing a full DNS client is hard. BTW, this code base also contains a 'do I have an internet connection' test.

Sven

...

On 10 Apr 2020, at 13:15, dario.trussardi65 <dario.trussardi65@gmail.com> wrote:

Ciao,

i have a Pharo 7.0.3 image run on Ubuntu system.

Sometime the internet connection go down.

In this status when i do the:

NetNameResolver addressForName: 'www.esug.org' timeout: 1

the system is busy for 20 seconds ( for any request ).

The timeout: 1 is not considered.

Question: how i can test if the internet connection is up before submit any NetNameResolver request ?

Googling in VisualBasic i found the ActiveConnection

It return true if internet connection is active.

Equivalent in Pharo - Gemstone ?

Thanks,

Dario

-- Serge Stinckwic ​h​ https://twitter.com/SergeStinckwich ​