Comments (3)
One option would be to compare the current termios
values to our desired values and only call tcsetattr
if they differ.
The obvious downsides here are:
- It'll be a bit messy since we only want to compare well-known bits, not entire fields.
- It might not even help most of the time since it seems that our desired values differ slightly from the default values on both Linux and macOS (in different ways).
from cathode.
But what about the times when the foreground process is in raw mode and we end up completely garbling the screen?
Such an application should really set TOSTOP
(which we would be forced to respect as we can't block/ignore SIGTTOU
from managed land anyway). See:
from cathode.
I think I'm satisfied that there would be no major issues with just assuming we're in cooked mode. I think it's entirely reasonable to say that if a parent process launches a child process in raw mode, the developer of the parent process is doing it wrong. Nobody expects their program to launch in raw mode.
from cathode.
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from cathode.