Are you running zsh 3.0? That would only explain lack of following in
zshall:

       jobtexts
              This associative array maps job numbers to the texts of the
command
              lines that were used to start the jobs.

              Handling  of  the keys of the associative array is as
described for
              jobdirs above.


On Thu, 19 Jan 2023 at 16:08, Pier Paolo Grassi <pierpaolog@gmail.com>
wrote:

> I'm sorry, what is $jobtexts? it seems an empty variable to me and doesn't
> appear in zshall manual
>
> Pier Paolo Grassi
>
>
> Il giorno gio 19 gen 2023 alle ore 17:02 Sebastian Gniazdowski <
> sgniazdowski@gmail.com> ha scritto:
>
>> You could get pid from $jobtexts?
>>
>> On Thu, 19 Jan 2023 at 15:43, Pier Paolo Grassi <pierpaolog@gmail.com>
>> wrote:
>>
>>> I realize now the subject doesn't reflect the final version of the mail,
>>> sorry for that
>>>
>>> Pier Paolo Grassi
>>>
>>>
>>> Il giorno gio 19 gen 2023 alle ore 16:32 Pier Paolo Grassi <
>>> pierpaolog@gmail.com> ha scritto:
>>>
>>>> Hello, I want to populate an array from a long running process,
>>>> something like:
>>>>
>>>> long_running_process | while read line
>>>> do
>>>>   array+=$line
>>>> done
>>>>
>>>> problem is, since long_running_process does not continually produce
>>>> output but only some times, when i try to interrupt this pipeline with
>>>> ctrl-c I have to wait until it produces some output for the process to
>>>> terminate (because, as I understand it, when it tries to write to the pipe
>>>> it receives a sigpipe due to it being already closed)
>>>>
>>>> I have tried various constructs with trap and even coproc to be able to
>>>> intercept the ctrl-c and send a sigpipe to the long running process, but to
>>>> no result.
>>>>
>>>> I wonder if someone has some solution to share for this problem, thanks
>>>>
>>>> Pier Paolo Grassi
>>>>
>>>
>>
>> --
>> Best regards,
>> Sebastian Gniazdowski
>>
>>

-- 
Best regards,
Sebastian Gniazdowski