Re: waiting for process substitutions

[Zachary Santer]

On Thu, Jul 18, 2024 at 5:02 PM Chet Ramey <chet.ramey@case.edu> wrote:
>
> It's not in the set of changes to `wait -n' I just pushed, but it will be
> in the next push.

Configuration Information [Automatically generated, do not change]:
Machine: x86_64
OS: msys
Compiler: gcc
Compilation CFLAGS: -g -O2
uname output: MSYS_NT-10.0-19045 Zack2021HPPavilion
3.5.3-d8b21b8c.x86_64 2024-07-09 18:03 UTC x86_64 Msys
Machine Type: x86_64-pc-msys

Bash Version: 5.3
Patch Level: 0
Release Status: alpha

Description:
I was going to say, it looks like 'wait -n' just couldn't wait for
procsubs at all.

Repeat-By:
./procsub-wait-n false false
./procsub-wait-n true false
./procsub-wait-n false true
./procsub-wait-n true true

I haven't figured out how to build the devel branch in MSYS2 MSYS.

Judging by your commit message:
> job control cleanups; wait -n can return terminated jobs if supplied pid 
> arguments; wait -n can wait for process substitutions if supplied pid 
> arguments

I feel like that's most of the way there. I would argue 'wait -n'
without arguments should include the "last-executed process
substitution, if its process id is the same as $!," in the set of
running child processes it'll wait for, at least. Just for the sake of
consistency with 'wait' without arguments.

procsub-wait-n
Description: Binary data