From: Steffen Nurpmeso <steffen@sdaoden.eu>
To: DASH shell mailing list <dash@vger.kernel.org>
Subject: Re: dash 0.5.11.2: somehow falsely waits
Date: Mon, 21 Dec 2020 20:58:11 +0100 [thread overview]
Message-ID: <20201221195811.bKsCb%steffen@sdaoden.eu> (raw)
In-Reply-To: <20201221193621.eKxnM%steffen@sdaoden.eu>
one more note..
Steffen Nurpmeso wrote in
<20201221193621.eKxnM%steffen@sdaoden.eu>:
|Steffen Nurpmeso wrote in
| <20201220014300.8lXtI%steffen@sdaoden.eu>:
||There is another issue with at least dash (the others not yet
||tested). I cloned the git repo and it is still present at
||6ba88b3ed28fb4b52f20b730194c4ad3d8aad037.
||
||With the original test script of what is in "Re: dash 0.5.11.2,
||busybox sh 1.32.0, FreeBSD 12.2 sh: spring TTOU but should not
||i think" the sleeper will randomly wake too early for whatever
||reason. The sleeper is:
||
|| i=
|| trap 'i=1' USR1 # "reaper (actually a notify timer only) is up"
|| (
|| parent=${$}
|| sleeper= int=0 hot=0
|| trap '' EXIT HUP QUIT CHLD
|| trap 'exit 0' INT
|| trap '
|| int=1 hot=1
|| [ -n "${sleeper}" ] && kill -TERM ${sleeper} >/dev/null 2>&1
|| ' USR1
|| trap '
|| int=1 hot=0
|| [ -n "${sleeper}" ] && kill -TERM ${sleeper} >/dev/null 2>&1
|| ' USR2
|| trap '
|| [ -n "${sleeper}" ] && kill -TERM ${sleeper} >/dev/null 2>&1
|| echo "Stopping job reaper"
|| exit 0
|| ' TERM
||
|| # traps are setup, notify parent that we are up and running
|| kill -USR1 ${parent} >/dev/null 2>&1
||
|| while :; do
|| int=0
I seem to get a hundred percent reliability when i insert a
</dev/null ${cat} >/dev/null
|| /bin/sleep ${JOBWAIT} &
|| sleeper=${!}
|| wait ${sleeper}
|| sleeper=
|| [ "${int}${hot}" = 01 ] && kill -USR1 ${parent} >/dev/null 2>&1
|| done
|| ) </dev/null & #>/dev/null 2>&1 &
|| JOBREAPER=${!}
Hope that helps, ciao!
--steffen
|
|Der Kragenbaer, The moon bear,
|der holt sich munter he cheerfully and one by one
|einen nach dem anderen runter wa.ks himself off
|(By Robert Gernhardt)
next prev parent reply other threads:[~2020-12-21 19:58 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-12-20 1:43 dash 0.5.11.2: somehow falsely waits Steffen Nurpmeso
2020-12-21 19:36 ` Steffen Nurpmeso
2020-12-21 19:58 ` Steffen Nurpmeso [this message]
2021-01-06 4:47 ` Herbert Xu
2021-01-06 20:44 ` Steffen Nurpmeso
2021-01-07 2:50 ` Herbert Xu
2021-01-07 19:00 ` Steffen Nurpmeso
2021-01-07 21:07 ` Herbert Xu
2021-01-07 21:48 ` Steffen Nurpmeso
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