RFR: 8075829: Move CSpaceCounters implementation to cSpaceCounters.cpp

[Bengt Rutisson]

Hi Stefan,

On 2015-03-24 17:33, Stefan Karlsson wrote:
> Hi,
>
> Please review this patch to reduce the dependency against 
> space.inline.hpp in cSpaceCounters.hpp.
>
> - The update_* functions are not called frequently and doesn't have to 
> be inlined.

It looks to me like the update_* functions don't need to be virtual. Can 
we make them non-virtual?

Otherwise looks good.

Bengt

>
> - The take_sample() function is called as a virtual call, and doesn't 
> need to be inlined.
>
> - The change in cSpaceCounters.hpp to include space.hpp instead of 
> space.inline.hpp, causes some files to no longer include 
> space.inline.hpp. If one of these files use the Space class but 
> doesn't include space.inline.hpp we get a compile error stating that 
> block_start is used but never defined, even when the block_start 
> function isn't used from that file. To solve that, the 'inline' 
> keyword is removed from the declaration, but kept at the definition. 
> The compiler will not complain about missing definition of block_start 
> if space.inline.hpp isn't included, but the linker will. The compiler 
> will still be able to inline the function.
>
> http://cr.openjdk.java.net/~stefank/8075829/webrev.01/
> https://bugs.openjdk.java.net/browse/JDK-8075829
>
> Thanks,
> StefanK