Re: using libmagic in Emacs?

[Andreas Schwab <schwab@linux-m68k.org>]

joakim@verona.se writes:

> +  GCPRO6 (file_description, file_mime, file_encoding, rv, absname, encoded_absname);

That's too much.  You only need to protect variables used around calls
that can GC.  Arguments to lisp functions are implicitly protected.  For
example, there are no function calls during the lifetime of absname.
And encoded_absname is completely unused.

> + libmagic_error:
> +  report_file_error("Libmagic error",Qnil);
> +  if (cookie != NULL) magic_close (cookie);  

report_file_error throws, so you leak a resource.

Andreas.

-- 
Andreas Schwab, schwab@linux-m68k.org
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