Re: [GNUnet-developers] Make "gnunet-arm -e" not hang

[Schanzenbach, Martin]

Sounds good. But how does that work for gnunet-arm, specifically?
Because gnunet-arm -s still needs to work, kind of.

BR

> On 25. Sep 2019, at 17:37, Christian Grothoff <address@hidden> wrote:
> 
> Signed PGP part
> This is actually related to a GNS-ish bug, which is that right now
> pretty much none of our APIs offer a nice way for us to decide between
> (1) "service may have crashed, keep trying" and (2) "service not running
> period, give up".
> 
> (1) is what is currently always done, in part because I'm not sure what
> the best way to _sanely_ tell the two cases apart is. We have this
> problem with gnunet-gns (waits if GNS service is down) during NSS
> integration, as well as with gnunet-arm -e, but overall this affects all
> tools: they deal nicely with crashing services, but badly when the
> services are not running at all.
> 
> Beyond the issue of distinguishing the two cases, there is the question
> of how to nicely deal with the situation _without_ complicating the
> logic in all of our programs.
> 
> Right now, my best idea is to modify GNUNET_PROGRAM_run() to detect "is
> ARM running" by asking it which services are running, and if we fail to
> detect the ARM listen socket, we give up hard.  Furthermore, we could
> pass information to GNUNET_PROGRAM_run() which subset of services ARM
> must support (via autostart or have launched), and again give up if the
> required service(s) are not in the set.
> 
> The is a slightly awkward heuristic, as after launching ARM it may still
> take a few cycles for the listen socket to appear. We probably should
> also modify "gnunet-arm -s" to not terminate until the listen socket
> appears, as otherwise the above change would break some tests.
> 
> WDYT?
> 
> 
> On 9/25/19 4:02 PM, xrs wrote:
>> Hi all,
>> 
>> I stumple upon a problem that always got into my way when using
>> gnunet-arm: If the services are not running and I execute gnunet-arm -e
>> it hangs. How about ending it normally with some exit code >0?
>> 
>> cheers,
>> xrs
>> 
>> 
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>> 
> 
> 
>

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