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Re: fc -ap -R stalls when called from sched
- X-seq: zsh-workers 39274
- From: Sebastian Gniazdowski <sgniazdowski@xxxxxxxxx>
- To: Zsh hackers list <zsh-workers@xxxxxxx>
- Subject: Re: fc -ap -R stalls when called from sched
- Date: Sun, 11 Sep 2016 11:01:51 +0200
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PS. Thought that I could provide a minimum test case. However, following:
myfunction() { local -a arr; fc -ap -R ~/.zshrc; arr=( ${history[@]}
); print -rl -- "Read:" "${(@)arr[1,3]}"; }
sched +1 myfunction
works fine...
On 11 September 2016 at 10:58, Sebastian Gniazdowski
<sgniazdowski@xxxxxxxxx> wrote:
> Hello,
> I call function __convey_on_period_passed() from sched +1 mechanism.
> There, I read an IO file (file used for data conveying). I use the
> neat trick that worked for me in past, but not now:
>
> # Read input using history mechanism
> local -a commands
> () { fc -ap -R "$datafile"; commands=( ${history[@]} ) }
>
> Shell stalls for ~10 seconds, then continues with data correctly read.
> Whole source with debug marks is here:
>
> https://github.com/psprint/zconvey/blob/001a5378177dcfdd0de388e19f5c7ca067c0a89c/zconvey.plugin.zsh#L174-L183
>
> Asciinema showing the effect:
>
> https://asciinema.org/a/9mfxg2j1jcwvoo7tb5x6bagr4
>
> Removing anonymous function doesn't help. Doing normal load via
> commands=( "${(@f)"$(<$datafile)"}" ) does help.
>
>
> The plugin is for: a) assigning IDs and names to Zsh sessions b) doing
> "zconvey -n Devel vim ~/.zshrc" to fire up command on Zsh session
> named "Devel" (not implemented yet, thus a manual print -rl -- is used
> to fill IO file).
>
> Best regards,
> Sebastian Gniazdowski
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