Re: [Qemu-devel] [PATCH 1/2] Emulated CCID card: QOMify

[Cao jin <caoj.fnst@cn.fujitsu.com>]

On 02/02/2016 04:30 PM, Michael Tokarev wrote:
> 02.02.2016 11:25, Cao jin wrote:
>> On 02/02/2016 04:15 PM, Michael Tokarev wrote:
>>> Why did you move the type definition from .c to .h file?
>>> It is only referenced in .c, no?
> []
>> Yes, that type definition is referred only in .c for now, but we are not sure about it in the future, for better flexibility, I think put it into .h is better. http://wiki.qemu.org/QOMConventions also says:
>>
>> DO use TYPE_FOO constants, defined in a header if used in other parts of code
>
> The last words in this sentense makes sense, I think:
> "if used in other parts of the code".
>
> So I read it as 2-part suggestion:
>
> 1) use TYPE_foo constants instead of "literals", and
> 2) define them in a header file if used elsewhere too.
>
> The "future flexibility" is, in my opinion, questionable.
> If we'll use them in the future, we can always move the
> #define to the header file.  For now, there's no need
> to clutter the heade more, but there's a good reason
> to use the #define in the "home" .c file where this
> device is implemented, in all places where the device
> name is referenced.
>
> At least that's how I read this (somewhat ambiguous)
> suggestion in the wiki.
>
> Thanks,
>
> /mjt
>

leave it where it was is also fine by me, it is not late to move it to 
header file when it is certainly to be used in other parts. I will 
update it:)

-- 
Yours Sincerely,

Cao jin