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Re: bash cannot switch background/foreground for aplay


From: Chet Ramey
Subject: Re: bash cannot switch background/foreground for aplay
Date: Fri, 6 Mar 2020 09:30:21 -0500
User-agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.14; rv:68.0) Gecko/20100101 Thunderbird/68.5.0

On 3/6/20 1:57 AM, Chao Song wrote:
> Hi, Bash Developers,
> 
>     I found that bash cannot switch background/foreground for aplay.
> 
> To reproduce:
> 
>     1. run aplay: aplay -Dhw:0,0 -f dat -i -c2 -vvv ./somewave.wav
> 
>     2. press CTRL + Z to switch to background
> 
>     3. press fg to switch to foreground.  [Failed at this step, seems aplay
> not in foreground, because output for aplay is not resumed.]

This is shaky logic.

> 
>    Not sure if this is a bug of aplay or bash, could you please to take a
> look at bash first?

Is any other process, including bash, getting read access to the terminal?
If not, how can this be a bash bug?

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



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