Extending torture_assert_* macros

[Andrew Bartlett]

On Mon, 2010-07-05 at 16:34 +0300, Kamen Mazdrashki wrote:
> Hi list,
> I want to introduce a torture_assert_*_fmt family of macros in
> torture.h,
> which are to work much in the same way as DEBUG macro does.
> 
> I pushed first few commits in this direction here:
> http://gitweb.samba.org/?p=kamenim/samba.git;a=shortlog;h=refs/heads/msds-intid-wip
> 
> 
> In order to achieve this I had to introduce new public function
> - torture_format_msg_helper()
> to be used to format messages just by passing (format_string, ....
> params) tuple
> (neither talloc_asprintf() nor asprintf() has such simplified
> interface)
> 
> 
> The thing is that I don't quite like to introduce a whole new public
> function 
> just to be able to format messages in torture_assert_* macros.

Why not?  What is the cost here?

> Does anyone has an idea how to achieve same effect without
> implementing new function?

This approach, and the patches you propose, look reasonable to me.  The
only thing I would say is to convert all the existing tortore_assert
callers, so we don't have a special _fmt variant. 

The only comment I would make is:  Don't declare: 
  const char *cmt = torture_format_msg_helper cmt_args; \

as 'const char *', as you need to talloc_free it shortly.  Also, choose
a more unusual name, as you don't want to get warnings from shadowing a
local variable in the caller. 

Andrew Bartlett

-- 
Andrew Bartlett                                http://samba.org/~abartlet/
Authentication Developer, Samba Team           http://samba.org
Samba Developer, Cisco Inc.
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