git: openjdk/jdk21u: master: 8308593: Add KEEPALIVE Extended Socket Options Support for Windows

[Severin Gehwolf]

Changeset: 19279305
Author:    Terry Chow <v-terrychow at microsoft.com>
Committer: Severin Gehwolf <sgehwolf at openjdk.org>
Date:      2023-09-11 09:45:33 +0000
URL:       https://git.openjdk.org/jdk21u/commit/19279305d543857a0d89ff8990493c7d05425feb

8308593: Add KEEPALIVE Extended Socket Options Support for Windows

Backport-of: f3ade388dac0b882e671462caa762138f44817fb

! src/jdk.net/aix/classes/jdk/net/AIXSocketOptions.java
! src/jdk.net/aix/native/libextnet/AIXSocketOptions.c
! src/jdk.net/linux/classes/jdk/net/LinuxSocketOptions.java
! src/jdk.net/linux/native/libextnet/LinuxSocketOptions.c
! src/jdk.net/macosx/classes/jdk/net/MacOSXSocketOptions.java
! src/jdk.net/macosx/native/libextnet/MacOSXSocketOptions.c
! src/jdk.net/share/classes/jdk/net/ExtendedSocketOptions.java
! src/jdk.net/windows/classes/jdk/net/WindowsSocketOptions.java
! src/jdk.net/windows/native/libextnet/WindowsSocketOptions.c