Re: __attribute__ ((cleanup)) and emacs-module.c

[Po Lu]

Philipp Stephani <phst@google.com> writes:

> This attribute is necessary at the moment because otherwise the
> handlerlist wouldn't get reset when returning from the module
> implementation functions. Without it, you'd need to audit every
> occurrence of "return" in the code (including the code generated by
> the helper macros) and reset the handlerlist manually. This is
> unrelated to C++ exception handling. It's not impossible to do this
> manually (it's not so different from the unbind_to calls in the Emacs
> codebase), but rather error-prone.

Yes, I know why it's necessary.  I'm up to doing what what it does by
hand in portable C.

Unmatched unbind_to's have never been a significant problem for us, so
this shouldn't either be.  Daniel, any comments?

Thanks.