From: Thomas Petazzoni via buildroot <buildroot@buildroot.org>
To: Thomas Devoogdt <thomas@devoogdt.com>
Cc: buildroot@buildroot.org,
Thomas Devoogdt <thomas.devoogdt@barco.com>,
Bart Van Severen <bart.vanseveren@barco.com>
Subject: Re: [Buildroot] [PATCH v1 1/2] package/libwebsockets: add an option to enable lws async dns
Date: Sat, 26 Oct 2024 16:42:45 +0200 [thread overview]
Message-ID: <20241026164245.4d0a4372@windsurf> (raw)
In-Reply-To: <20240920062014.132862-1-thomas@devoogdt.com>
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
prev parent reply other threads:[~2024-10-26 14:42 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-09-20 6:20 [Buildroot] [PATCH v1 1/2] package/libwebsockets: add an option to enable lws async dns Thomas Devoogdt
2024-09-20 6:20 ` [Buildroot] [PATCH v1 2/2] package/libwebsockets: fix LWS_MAX_SMP when BR2_TOOLCHAIN_HAS_THREADS is set Thomas Devoogdt
2024-10-26 14:43 ` Thomas Petazzoni via buildroot
2024-10-26 18:25 ` Thomas Devoogdt
2024-10-29 16:06 ` Thomas Petazzoni via buildroot
2025-02-04 12:36 ` Thomas Devoogdt
2026-02-04 14:37 ` Thomas Petazzoni via buildroot
2024-10-26 14:42 ` Thomas Petazzoni via buildroot [this message]
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20241026164245.4d0a4372@windsurf \
--to=buildroot@buildroot.org \
--cc=bart.vanseveren@barco.com \
--cc=thomas.devoogdt@barco.com \
--cc=thomas.petazzoni@bootlin.com \
--cc=thomas@devoogdt.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox