Patch for adding SO_REUSEPORT socket option

[Alan Bateman]

On 23/11/2015 04:12, Lu, Yingqi wrote:
>
> Hi Alan,
>
> One more question please JI want to make sure I understand correctly 
> on your following suggestion. In order to use supportedOptions method 
> to test SO_REUSEPORT, I will need to first write a native function to 
> check if SO_REUSEPORT is supported. Then, in the defaultOptions 
> method, I do a conditional add for StandardSocketOptions.SO_REUSEPORT 
> if it is supported on the platform? Is this a preferred way to 
> implement? Please let me know!
>
>
Yes as supportedOptions() shouldn't return SO_REUSEPORT in the set when 
it's not supported. It might be simplest to put that code in 
sun.nio.ch.Net, maybe isReusePortSupported or some such method. In the 
implementation (Net.c) then you can return true or false depending on 
the platform and maybe kernel version.

-Alan
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