Re: Daemon/Client, Multiple Terminals, and `tty-erase-char'

[Andreas Schwab <schwab@suse.de>]

On Dez 16 2019, Eli Zaretskii wrote:

>> From: Andreas Schwab <schwab@suse.de>
>> Cc: emacs-devel@gnu.org, Alexander Shukaev <emacs@Alexander.Shukaev.name>
>> Date: Mon, 16 Dec 2019 17:02:56 +0100
>> 
>> On Dez 16 2019, Eli Zaretskii wrote:
>> 
>> > tty-erase-char is a global variable, so it is not per terminal.
>> >
>> > But I don't think I understand what you mean by "frame refers to a different value" in this context.  What do you think Emacs does with the value of this variable, that you need to be specific to a frame?
>> 
>> Currently, tty-erase-char is set to the ERASE character of the last
>> opened terminal.  Since normal-erase-is-backspace-setup-frame is
>> normally only called once when the frame is created, this happens to
>> work out right.
>
> tty-erase-char is also set whenever init_sys_modes is called, and
> many/most of its callers are generally supposed to be called for the
> controlling terminal only.  If one of those callers is actually
> called, tty-erase-char will be reset to the ERASE character of the
> controlling terminal, AFAIU.

Emacs can have multiple controlling terminals, if there are multiple
terminals.

Andreas.

-- 
Andreas Schwab, SUSE Labs, schwab@suse.de
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