Re: "read -s -n999 -t0.01 key" hangs until keypress

[Chet Ramey]

On 10/12/23 6:18 AM, Bodo Thiesen wrote:
> Hello list.
>
> The following script can be used to reproduce the problem. It seems to be
> related to sub-processes terminating at the "wrong" moment. The symptom:
> The script runs for some time counting up until at some moment the script
> hangs in the read function. Once this happens, the timeout is no longer
> respected at all. Only a keypress frees the script again.

I ran this on Linux (RHEL, if that matters) with the current devel version
for about 200K iterations without a failure.

--
``The lyf so short, the craft so long to lerne.'' - Chaucer
                 ``Ars longa, vita brevis'' - Hippocrates
Chet Ramey, UTech, CWRU    chet@case.edu    http://tiswww.cwru.edu/~chet/