adding rsockets support into JDK

[Lu, Yingqi]

Hi Alan/Chris,

Happy New Year!

Do you get any chances to review the most recent version of the patch?

I just got back from the holiday break and will start working on resolving item#2 again :-)

Thanks,
Lucy

>-----Original Message-----
>From: nio-dev [mailto:nio-dev-bounces at openjdk.java.net] On Behalf Of Lu,
>Yingqi
>Sent: Tuesday, December 18, 2018 11:44 AM
>To: Chris Hegarty <chris.hegarty at oracle.com>
>Cc: Aundhe, Shirish <shirish.aundhe at intel.com>; nio-dev at openjdk.java.net;
>Viswanathan, Sandhya <sandhya.viswanathan at intel.com>; Kaczmarek, Eric
><eric.kaczmarek at intel.com>
>Subject: RE: adding rsockets support into JDK
>
>Hi Alan/Chris,
>
>Here is the version 26 of the patch: http://cr.openjdk.java.net/~ylu/8195160.26/
>
>In this version, I first applied the following patches from Chris:
>
>http://cr.openjdk.java.net/~chegar/rsocket/webrev.25.1/
>
>http://cr.openjdk.java.net/~chegar/rsocket/webrev.25.2/
>
>http://cr.openjdk.java.net/~chegar/rsocket/webrev.25.3/
>
>http://cr.openjdk.java.net/~chegar/rsocket/webrev.25.4/
>
>http://cr.openjdk.java.net/~chegar/rsocket/webrev.25.5/
>
>http://cr.openjdk.java.net/~chegar/rsocket/webrev.25.6/
>
>Then, following Alan's suggestion, I made the rsocket to be non-blocking at the
>creation time for socket channels. I modified accept function from
>RdmaServerSocketChannelImpl, and connect/read/write functions from
>RdmaSocketChannelImpl to simulate blocking. Please let me know if this is a
>reasonable approach. I tested the patch with all 23 JTreg test cases and they all
>pass (I commented out all 12 tests for non-blocking connect cases in
>IOExchanges.java given issue #2 is still open)
>
>I also sent an email to Sean on the Linux kernel fix for issue #1. Once I get a reply
>from him, I will let you both know.
>
>Thanks,
>Lucy
>
>>-----Original Message-----
>>From: Chris Hegarty [mailto:chris.hegarty at oracle.com]
>>Sent: Tuesday, December 18, 2018 6:15 AM
>>To: Lu, Yingqi <yingqi.lu at intel.com>
>>Cc: Alan Bateman <Alan.Bateman at oracle.com>; nio-dev at openjdk.java.net;
>>Viswanathan, Sandhya <sandhya.viswanathan at intel.com>; Aundhe, Shirish
>><shirish.aundhe at intel.com>; Kaczmarek, Eric <eric.kaczmarek at intel.com>
>>Subject: Re: adding rsockets support into JDK
>>
>>
>>
>>> On 17 Dec 2018, at 19:07, Lu, Yingqi <yingqi.lu at intel.com> wrote:
>>>
>>> I already discussed with Sean on this specific issue. He mentioned
>>> that even he
>>can propose a fix to the kernel librdmacm module, it would take years
>>to get into majority of the distros. I would recommend to emulate the
>>behavior inside JDK and make use of it.
>>
>>Sure, but it would be good to have some forward movement on this, so
>>that the Java implementation can remove the workaround at some future point.
>>
>>-Chris.