Re: [PATCH] tests: wait for flock background process

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On Thursday 03 November 2016, Karel Zak wrote:
> On Wed, Nov 02, 2016 at 11:11:42PM +0100, Bernhard Voelker wrote:
> > On 11/02/2016 04:51 PM, Karel Zak wrote:
> > >> +timeout 1s bash -c "while [ \$(ps --ppid $pid |wc -l) -lt 2 ];
> > >> do sleep 0.1 ;done" \
> > >
> > > is "0.1" portable? :-)
> >
> > if one has timeout from coreutils, then it's likely that she also
> > has sleep from there.  Thus said, I'd rather worry about
> > portability of using timeout rather than the "0.1" (if sleep fails,
> > then nobody will care anyway). ;-)
>
> Good point... I have added check for "timeout".


BTW we have already a lot more coreutils and other GNU dependencies in 
our tests, inclusive timeout and sleep for floats.

AFAIR for v2.28 I had fixed all GNU deps for configure/make but for the 
test-suite it was too painful. The OSX build on travis needs for the 
tests at least GNU readlink, seq, truncate, find, xargs, tar and sed. 
The Linux-only tests have even more coreutils deps. 

To replace sleep for floats, we could check and use usleep(1) from 
sysvinit. Or we could even add usleep to util-linux as we did with 
other sysvinit commands.


cu,
Rudi
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