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Re: after-delete-terminal-functions
From: |
Stefan Monnier |
Subject: |
Re: after-delete-terminal-functions |
Date: |
Wed, 13 Feb 2008 17:24:43 -0500 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/23.0.50 (gnu/linux) |
> But now I wonder: is DELETE_TERMINAL_EVENT the right thing to do, or
> should we use run-at-time instead?
> I don't see any reason why run-at-time would work better,
> and it certainly is not cleaner. It is less clean.
> So, I removed the `error' call, but this makes things worse, apparently:
> Emacs then exits abruptly. It seems that it's important to abort
> execution at the end of x_connection_closed. So I re[placed the `error'
> call by a call to Fthrow. This finally worked.
> That seems like a plausible approach to me.
> However, another idea is to signal an error and do something special
> so that this error doesn't clear the event. Even better, the
> top-level loop could queue the event after catching this kind of
> error.
> Or the top-level loop could call the appropriate hook after catching
> this kind of error. That way there would be no event, just a hook.
> It could distinguish this error based on an error condition symbol.
> That would be clean.
That's an option, indeed. The problem is that the hook needs to be run
in various circumstances:
- when the terminal is killed explicitly via delete-terminal.
- when the terminal is killed via delete-frame.
- when the terminal is killed from keyboard.c noticing that the `read' fails.
- when the terminal is killed because of the x_io_error.
So it is cleaner to put the "run the hook" in Fdelete_terminal which is
pretty much the common path of all 4. But sometimes Fdelete_terminal
cannot run elisp, hence the idea of creating an event.
Maybe an alternative is to add a variable `delayed_evals' which would
hold a list of things to run "ASAP".
Stefan
- Re: 23.0.60; Emacs should survive a lost X connection, (continued)
- Re: 23.0.60; Emacs should survive a lost X connection, Stefan Monnier, 2008/02/10
- Re: 23.0.60; Emacs should survive a lost X connection, Dan Nicolaescu, 2008/02/11
- Re: 23.0.60; Emacs should survive a lost X connection, Stefan Monnier, 2008/02/11
- Re: 23.0.60; Emacs should survive a lost X connection, Dan Nicolaescu, 2008/02/11
- after-delete-terminal-functions (was: 23.0.60; Emacs should survive a lost X connection), Stefan Monnier, 2008/02/12
- Re: after-delete-terminal-functions (was: 23.0.60; Emacs should survive a lost X connection), Richard Stallman, 2008/02/13
- Re: after-delete-terminal-functions,
Stefan Monnier <=
- Re: after-delete-terminal-functions, Richard Stallman, 2008/02/18
- Re: 23.0.60; Emacs should survive a lost X connection, Richard Stallman, 2008/02/09
- Re: 23.0.60; Emacs should survive a lost X connection, Dan Nicolaescu, 2008/02/10
- Re: 23.0.60; Emacs should survive a lost X connection, Stefan Monnier, 2008/02/10
- Re: 23.0.60; Emacs should survive a lost X connection, Harald Hanche-Olsen, 2008/02/10
- Re: 23.0.60; Emacs should survive a lost X connection, Miles Bader, 2008/02/10
- Re: 23.0.60; Emacs should survive a lost X connection, Harald Hanche-Olsen, 2008/02/10
- Re: 23.0.60; Emacs should survive a lost X connection, Miles Bader, 2008/02/10
- Re: 23.0.60; Emacs should survive a lost X connection, Harald Hanche-Olsen, 2008/02/10
- Message not available
- Re: 23.0.60; Emacs should survive a lost X connection, Richard Stallman, 2008/02/10