On 11/14/15 6:02 PM, Chet Ramey wrote:
> On 11/14/15 12:39 PM, konsolebox wrote:
>> On Fri, Nov 13, 2015 at 4:15 AM, Chet Ramey <chet.ra...@case.edu> wrote:
>>> On 11/12/15 5:27 AM, konsolebox wrote:
>>>> My interactive (using `read`) Bash-script application still suspends
>>>> itself after
>>>> executing second instance of a player. I've only seen this happen in
>>>> the newest development version of Bash.
>>>
>>> According to the change log, the last time I made a change that might
>>> be relevant to this problem was April 23. You might try getting the
>>> version immediately preceding that one and seeing whether or not that
>>> version has the problem.
>>>
>>
>> This seems to be the modification that causes the problem. It's in
>> "commit bash-20150424 snapshot".
>>
>> --- a/jobs.c
>> +++ b/jobs.c
>> @@ -2658,8 +2658,8 @@ itrace("wait_for: blocking wait for %d returns
>> %d child = %p", (int)pid, r, chil
>> if (job == NO_JOB)
>> itrace("wait_for: job == NO_JOB, giving the terminal to shell_pgrp
>> (%ld)", (long)shell_pgrp);
>> #endif
>> - /* Don't modify terminal pgrp if we are running in the background */
>> - if (running_in_background == 0)
>> + /* Don't modify terminal pgrp if we are running in background
>> or a subshell */
>> + if (running_in_background == 0 && subshell_environment == 0)
>> give_terminal_to (shell_pgrp, 0);
>> }
>>
Here, try this patch. It sort of splits the difference along the lines of
your suggestion, and it behaves correctly for the case that inspired the
change originally.
Chet
--
``The lyf so short, the craft so long to lerne.'' - Chaucer
``Ars longa, vita brevis'' - Hippocrates
Chet Ramey, ITS, CWRU c...@case.edu http://cnswww.cns.cwru.edu/~chet/
*** ../bash-20151106/jobs.c 2015-10-24 18:20:59.000000000 -0400
--- jobs.c 2015-11-14 20:44:23.000000000 -0500
***************
*** 2780,2784 ****
#endif
/* Don't modify terminal pgrp if we are running in background or a subshell */
! if (running_in_background == 0 && subshell_environment == 0)
give_terminal_to (shell_pgrp, 0);
}
--- 2789,2793 ----
#endif
/* Don't modify terminal pgrp if we are running in background or a subshell */
! if (running_in_background == 0 && (subshell_environment&(SUBSHELL_ASYNC|SUBSHELL_PIPE)) == 0)
give_terminal_to (shell_pgrp, 0);
}
