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authorElliott Hughes <enh@google.com>2019-03-09 17:41:49 -0800
committerRob Landley <rob@landley.net>2019-03-10 23:00:19 -0500
commit502b10c2ab6bb273bf280ba355fa30869b955d56 (patch)
tree5f88f0ccaf0e0ed3c7ca75338b680d5e442811e3 /lib/xwrap.c
parentac9eea4afb88ca0785c1ea4c665b1744afc3009a (diff)
downloadtoybox-502b10c2ab6bb273bf280ba355fa30869b955d56.tar.gz
timeout: --foreground, --preserve-status, and --signal.
--signal is simply a synonym for the exiting -s. --foreground disables functionality we didn't yet have: putting the child into a new process group. I've added the functionality and the flag to disable it. --preserve-status also makes it clear that our exit statuses didn't match the coreutils version. In addition to callers that use --preserve-status to get away from this madness, I also have callers that check for specific exit values. This patch implements --preserve-status but also fixes all the other exit statuses. (The "125" exit value is broken for toybox in the same way that `toybox grep --whoops ; echo $?` is. To fix this, we'd need some way to signal that command-line parsing failures should exit with a different value than the usual 1 --- 2 for grep, 125 for timeout. I've done as much as grep manages, and left a TODO.) Also add timeout tests. I couldn't think of an easy test for --foreground, so I tested that manually with strace. Also add some newlines to the `toybox --help` output to make it easier to find the different sections, and expand the section on durations to call out that fractions are supported as a matter of policy. As long as timeout and sleep have text describing the duration syntax, make them the same. (Personally I'd remove both in favor of the `toybox --help` output, but as long as they're duplicated, keep them consistent.) Also remove the SLEEP_FLOAT variant --- xparsetime means that sleep no longer requires floating point to support sub-second resolution.
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