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Re: Watchpoints for emacs lisp.

From: alin.s
Subject: Re: Watchpoints for emacs lisp.
Date: Wed, 26 May 2010 09:49:23 -0700 (PDT)

Stefan Monnier wrote:
>>>> In which cases the access to this shared resource is concurrent?
>>> If you build without -DSYNC_INPUT, Emacs may call malloc from
>>> asynchronous signal handlers (yes, it's usually considered as a no-no in
>>> Unix programming, which is why we have switched to SYNC_INPUT).
>> In which situation it is useful to create new symbols in signal handlers
>> ?
> Without -DSYNC_INPUT we run a whole lot of code within the signal
> handlers, so whether that code can create symbols or not, I don't know,
> but figuring it out is difficult.  Hence -DSYNC_INPUT.


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