Re: [PHP-DEV] What does this mean? From: Andi Gutmans (andi <email protected>)
Date: 12/23/99

The ZZZZZ is a feature of our memory manager. In debug mode it also
overwrites freed memory first so that you can easily detect that you're
looking at something which has already been freed.

Andi

At 02:20 PM 12/23/99 -0800, David Hedbor wrote:
>Sascha Schumann <sascha <email protected>> writes:
>
> > That's why I like dmalloc. I suggested this once to Zeev, but
> > it has not been implemented yet.
>
>Ok, apparently it's only called once and this is the result:
>
>(gdb) p sapi_header
>$3 = (sapi_header_struct *) 0x86383b8
>*(gdb) p *sapi_header
>$4 = {header = 0x8638310 'Z' <repeats 28 times>, "ðÜ>\b\204Ì\217*Q",
> header_len = 27}
>
>Weird header if you ask me. :-) Hmm. Ahh, I see what the problem is. I
>had a
>
> efree(sapi_header->header)
>
>in php_roxen_sapi_header_handler (originally from aolserver.c). When
>deleting the line the error message went away. When replacing it with
>sapi_free_header(sapi_header) (which is what aolserver.c has now), the
>error came back. So I gather that I really shouldn't free anything
>there? Or does the return code have any significance? I return 1 there
>for some reason, while aolserver.c returns 0.
>
>*test*
>
>Yeps, seems like when I return 0 from that function, the header isn't
>freed twice. IT was the X-Powered-By header btw.
>
>
>--
>[ Below is a random fortune, which is unrelated to the above message. ]
>I THINK THEY SHOULD CONTINUE the policy of not giving a Nobel Prize for
>paneling.
> -- Jack Handley, The New Mexican, 1988.
>
>
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---
Andi Gutmans <andi <email protected>>
http://www.zend.com/

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