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Date: Sat, 14 Jul 2007 12:43:34 +0400
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To: "Usman S. Ansari" <uansari@yahoo.com>
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Subject: Re: [PHP-DEV] PHP Source Code Help
From: antony@zend.com (Antony Dovgal)

On 14.07.2007 10:51, Usman S. Ansari wrote:
> I am trying to debug my custom TCP stack which is running under Linux 
> OS. Do to some bug in my stack or missing feature I am getting error 
> following from php.
> 
> failed to open stream
> 
> Which I have traced to file: php-4.4.7/main/streams.c and function: 

Don't use it, it's not supported anymore.

> _php_stream_open_wrapper_ex
> 
>         stream = wrapper->wops->stream_opener(wrapper, path_to_open, 
> mode, options ^ REPORT_ERRORS,
>                  opened_path, context STREAMS_REL_CC TSRMLS_CC);
> 
> Error condition occurs when stream is assigned NULL from 
> wrapper->wops->stream_opener call (see above line). I need some help 
> figuring out which function is call by pointer 
> wrapper->wops->stream_opener. 

Use any of the debuggers available to step into it and see which function is called.

> I tried putting debug statements in some 
> functions which are called on pointers (based on different ops (read / 
> write / flush operations, etc.), so far I have not hit a function 
> pointed by wrapper->wops->stream_opener.
> 
> Also, if there is any documentation for understanding php source code.

> Usman
> P.S. I know 4.4.7 is old php, but by system is setup with this version 
> for debugging TCP stack (for some reason)
> 


-- 
Wbr, 
Antony Dovgal