Integrated: 8308593: Add Keepalive Extended Socket Options Support for Windows

[Terry Chow]

On Tue, 30 May 2023 22:46:05 GMT, Terry Chow <duke at openjdk.org> wrote:

> The PR adds support for the keepalive extended socket options on Windows. For TCP_KEEPIDLE and TCP_KEEPINTVL, these options are supported starting from Windows 10 version 1709. TCP_KEEPCNT is supported starting from Windows 10 version 1703. Information on these socket options can be found [here](https://learn.microsoft.com/en-us/windows/win32/winsock/ipproto-tcp-socket-options).
> 
> I've also corrected the `handleError()` function. On Windows, the error needs to be retrieved using `WSAGetLastError()` and error codes are prefixed with "WSA". Information on this can be found [here](https://learn.microsoft.com/en-us/windows/win32/winsock/error-codes-errno-h-errno-and-wsagetlasterror-2).
> 
>>The error codes returned by Windows Sockets are similar to UNIX socket error code constants, but the constants are all prefixed with WSA.
> 
>>Error codes set by Windows Sockets are not made available through the errno variable.
> 
> No new tests were added as the existing tests should cover this.

This pull request has now been integrated.

Changeset: f3ade388
Author:    Terry Chow <v-terrychow at microsoft.com>
Committer: Michael McMahon <michaelm at openjdk.org>
URL:       https://git.openjdk.org/jdk/commit/f3ade388dac0b882e671462caa762138f44817fb
Stats:     210 lines in 9 files changed: 169 ins; 0 del; 41 mod

8308593: Add Keepalive Extended Socket Options Support for Windows

Reviewed-by: michaelm, djelinski, vtewari

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PR: https://git.openjdk.org/jdk/pull/14232