Pointless tangent (Was Re: F11: xorg decision to disable Ctrl-Alt-Backspace)

[Callum Lerwick]

On Sun, 2009-03-29 at 22:44 +0100, Matthew Garrett wrote:
> Firefox does this by saving its session every time you hit a new page. 
> It's actually remarkably difficult to handle the "My X server has gone 
> away" case - traditional xlib behaviour is to just abort() your process. 
> You can do some funky stuff involving signal handlers and longjmp, but 
> by and large it's not practical to save app state when the server is 
> killed. 

And yet somehow many existing apps manage to do it...

A resilient app has to be able to handle having the plug pulled with no
warning anyway.

> Especially if your application isn't an X one and just happens 
> to run in a console.

On the console we've had this thing called SIGHUP for the last few
decades...

http://en.wikipedia.org/wiki/SIGHUP
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