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171e934d61
Added SDS-R, an (optional) extension of SDS to allow for coordinated repair of missing messages over a limited time window. It functions by allowing subgroups of participants to rebroadcast dependencies that were reported missing by other participants. As with the rest of SDS, it aims to scale to larger groups first and could likely be simplified for 1:1 or small group chats. To prevent an explosion in repair requests or broadcast storms, it uses backoff timers to prevent multiple participants from performing the same action (either request a repair or rebroadcast in response to a repair request) in a probabilistic manner. Note that what is still missing is a specified recommended way to use SDS-R in conjunction with retrieving missing dependencies from Store nodes. --------- Co-authored-by: fryorcraken <110212804+fryorcraken@users.noreply.github.com>