Re: [Buildroot] [PATCH v1 1/2] package/libwebsockets: add an option to enable lws async dns

[Thomas Petazzoni via buildroot <buildroot@buildroot.org>]

On Fri, 20 Sep 2024 08:20:13 +0200
Thomas Devoogdt <thomas@devoogdt.com> wrote:

> From: Bart Van Severen <bart.vanseveren@barco.com>
> 
> Lws now features optional asynchronous, ie, nonblocking recursive DNS
> resolution done on the event loop, enable `-DLWS_WITH_SYS_ASYNC_DNS=1`
> at cmake to build it in.
> 
> The default libc name resolution is via libc `getaddrinfo()`, which is
> blocking, possibly for quite long periods (seconds).  If you are
> taking care about latency, but want to create outgoing connections,
> you can't tolerate this exception from the rule that everything in
> lws is nonblocking.
> 
> Lws' asynchronous DNS resolver creates a caching name resolver
> that directly queries the configured nameserver itself over UDP,
> from the event loop.
> 
> https://libwebsockets.org/lws-api-doc-main/html/md_READMEs_2README_8async-dns.html
> 
> Signed-off-by: Bart Van Severen <bart.vanseveren@barco.com>
> Signed-off-by: Thomas Devoogdt <thomas.devoogdt@barco.com>
> ---
>  package/libwebsockets/Config.in        | 6 ++++++
>  package/libwebsockets/libwebsockets.mk | 4 ++++
>  2 files changed, 10 insertions(+)

Applied to master, thanks.

Thomas
-- 
Thomas Petazzoni, CTO, Bootlin
Embedded Linux and Kernel engineering
https://bootlin.com
_______________________________________________
buildroot mailing list
buildroot@buildroot.org
https://lists.buildroot.org/mailman/listinfo/buildroot