Re: Signal handling by readline

[Chet Ramey]

On 9/30/24 4:43 PM, Elad Lahav wrote:

> > Applications that don't want readline to do this can disable it, at a
> > cost.
> But it is still the case that bash makes many redundant system calls
> on every line entered. Is setting rl_catch_signals to 0 in bash going
> to have any adverse effects?

That would require me to add code to bash to take care of readline and
signal cleanup that readline does now. That comes at a cost, in both
time and additional code and effort.

> What about changing it to a signal mask
> that the application can set, such that readline knows which signals
> it should touch and which ones to leave alone?

I'll consider adding something like that in a future version, but not
for readline-8.3.

> If there is no race condition, though, then this is purely a
> performance issue for something that is not performance-sensitive.

I agree.

Chet

--
``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/