On Fri, 2 Feb 2018, Василий Куликов wrote:

> So, when I try to create easy handle and use it in async way, ares still
> does pretty much synchronous actions. AFAICS, there is no option to disable
> re-reading of /etc/resolv.conf, /etc/hosts, etc.
>
> Is it a deliberate decision to read these files synchronously? Is it
> possible to use c-ares in libcurl and not to do any sync i/o in a client
> thread?

c-ares is a separate project with a separate mailing list[1] and issue
tracker[2].

However, the fact is that reading files isn't really doable asynchronously in
a portable manner, so I figure the best approach here is probably to control
the behavior more with options. Although that brings the problem with when/how
those files should be read...

Certainly something to take to c-ares for discussion!

[1] = https://cool.haxx.se/mailman/listinfo/c-ares
[2] = https://github.com/c-ares/c-ares/issues

-- 
  / daniel.haxx.se

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Received on 2018-02-05