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From: "Stefan Monnier" <monnier+gnu/emacs@rum.cs.yale.edu>
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Subject: Re: Profiling font-lock in xemacs
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> urk!  one of the absolute worst things about gnu emacs is its tendency to do
> so much inside of signal handlers.  xemacs does *nothing* whatsoever in any
> signal handlers except set a flag.  This includes sigchld.  we've eliminated
> "immediate_quit", all of that "block_input" crap, etc.  the only exception
> is a flag that allows a longjmp[] from a signal handler to interrupt certain
> i/o operations that don't return EINTR on SIGIO, e.g. connect[].

> I made all the changes to remove this stuff and it was fairly easy; you
> might consider the same.  it was very satisfying to delete so much crud
> in the process.

Agreed.


	Stefan