From: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
To: buildroot@busybox.net
Subject: [Buildroot] [PATCH] package/skeleton: add a startup script to wait for slow network interfaces
Date: Sat, 3 Oct 2015 16:47:32 +0100 [thread overview]
Message-ID: <20151003164732.28d042e6@free-electrons.com> (raw)
In-Reply-To: <1443879105-3036-1-git-send-email-yann.morin.1998@free.fr>
Hello,
On Sat, 3 Oct 2015 14:31:45 +0100, Yann E. MORIN wrote:
> + printf "Waiting for interface %s to appear" "${IF}"
> + wait=${WAIT_DELAY}
> + while [ ${wait} -gt 0 ]; do
> + if [ -e "/sys/class/net/${IF}" ]; then
> + printf " yes\n"
> + return 0
> + fi
> + sleep 1
> + printf "."
> + : $((wait--))
> + done
One thing that I really like in Buildroot is that by default, it
generates you a system that boots really fast. People often don't have
to do anything special with Buildroot to make it boot fast. So having a
shell script that is installed by default and does a "sleep 1" in a
loop is not very nice :-/
Though I agree that it will only slow the boot on systems where the
network interfaces are not available immediately at boot time.
Thomas
--
Thomas Petazzoni, CTO, Free Electrons
Embedded Linux, Kernel and Android engineering
http://free-electrons.com
next prev parent reply other threads:[~2015-10-03 15:47 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-10-03 13:31 [Buildroot] [PATCH] package/skeleton: add a startup script to wait for slow network interfaces Yann E. MORIN
2015-10-03 13:51 ` Arnout Vandecappelle
2015-10-03 13:59 ` Peter Korsgaard
2015-10-03 14:01 ` Peter Korsgaard
2015-10-16 9:42 ` Peter Korsgaard
2015-10-03 15:47 ` Thomas Petazzoni [this message]
2015-10-03 18:29 ` Maxime Hadjinlian
2015-10-03 18:43 ` Arnout Vandecappelle
2015-10-03 18:46 ` Maxime Hadjinlian
2015-10-04 8:23 ` Peter Korsgaard
2015-10-19 8:47 ` Jérôme Pouiller
2015-10-19 10:15 ` Peter Korsgaard
2015-10-19 10:22 ` Jérôme Pouiller
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