[crac] RFR: 8349819: [CRaC] Support FD policy reopen on listening socket [v4]

[Timofei Pushkin]

On Wed, 19 Feb 2025 09:18:15 GMT, Radim Vansa <rvansa at openjdk.org> wrote:

>> Adds additional filtering option for `type: SOCKET` in OpenResourcePolicies: `listening: true` which is true for common server sockets. 
>> With `action: reopen` these implement automatic close on checkpoint and reopening on restore, using the same local address (this obviously won't work well if the restore happens on a machine that does not have the IP used before checkpoint).
>
> Radim Vansa has updated the pull request incrementally with one additional commit since the last revision:
> 
>   Make implReopen abstract

Marked as reviewed by tpushkin (Author).

-------------

PR Review: https://git.openjdk.org/crac/pull/204#pullrequestreview-2628878007