I've updated the webrev (empty struct option).

http://cr.openjdk.java.net/~rbackman/8013117.u1/

Thanks
/R

On Apr 24, 2013, at 2:40 PM, Rickard Bäckman wrote:

> David,
> 
> On Apr 24, 2013, at 2:25 PM, David Holmes wrote:
> 
>> On 24/04/2013 9:05 PM, Rickard Bäckman wrote:
>>> David,
>>> 
>>> On Apr 24, 2013, at 12:11 PM, David Holmes wrote:
>>> 
>>>> On 24/04/2013 7:09 PM, Rickard Bäckman wrote:
>>>>> Nils,
>>>>> 
>>>>> no it doesn't matter. Rather intended. By initializing it to NULL we 
>>>>> forced implementors to use a pointer that would have to be initialized at 
>>>>> some point. Now it can be a class / struct
>>>>> that is instead initialized by a default constructor.
>>>> 
>>>> So that addressed my question on the missing setter. But doesn't this also 
>>>> mean that you are now prohibiting it from being a simple pointer-type as 
>>>> there is no way to set it? Isn't maintaining the setter more flexible as 
>>>> it can be used in either case (direct assignment or copy constructor). 
>>>> Though lack of initialization in the current code still looks wrong.
>>> 
>>> Yes it makes it harder for the type to be a simple pointer, though that 
>>> could be worked around by putting the pointer inside a struct. Not a great 
>>> solution perhaps.
>>> The other solution would be to have a setter, the question is what to 
>>> initialize it with? Should we add another hook?
>> 
>> I don't see a truly satisfactory solution, but I think Parfait will flag 
>> that you are returning an uninitialized variable here.
> 
> Agreed.
> 
>> 
>> So yes perhaps you need to define TRACE_DATA_INIT ?
> 
> Two options I think:
> 
> 1) restore the setter and create a macro TRACE_DATA_DEFAULT_VALUE
> 2) make TRACE_DATA an empty struct.
> 
> Both works for me.
> 
> /R
> 
>> 
>> David
>> 
>>> /R
>>> 
>>>> 
>>>> David
>>>> 
>>>>> /R
>>>>> 
>>>>> On Apr 24, 2013, at 10:45 AM, Nils Loodin wrote:
>>>>> 
>>>>>> Does it matter that the pointer gets initialized to NULL before, but not 
>>>>>> now? There isn't any null checks anywhere that depends on that?
>>>>>> 
>>>>>> Regards,
>>>>>> Nils
>>>>>> 
>>>>>> On 04/24/2013 09:51 AM, Rickard Bäckman wrote:
>>>>>>> Hi all,
>>>>>>> 
>>>>>>> can I have a couple of reviews for this small change. The short story 
>>>>>>> is that the current way the thread-local _trace_buffer is somewhat 
>>>>>>> inflexible.
>>>>>>> By changing the type of the getter this structure gets more flexible 
>>>>>>> for different implementations. I also think that the name is misused. 
>>>>>>> Just naming it
>>>>>>> to _trace_data is more generic and less implementation-specific.
>>>>>>> 
>>>>>>> The webrev: http://cr.openjdk.java.net/~rbackman/8013117/
>>>>>>> 
>>>>>>> Thanks
>>>>>>> /R
>>>>>>> 
>>>>>> 
>>>>> 
>>> 
> 

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