@ndn/psync

This package is part of NDNts, Named Data Networking libraries for the modern web.

This package contains PSync and related protocols, including:

• PSync - FullSync
  • complete unit test
• PSync - PartialSync
  • simple unit test
  • application nack handling is incomplete
• syncps - Pubsub
  • simple unit test
  • implementation is compatible with DNMP-v2 syncps, not DCT syncps

These implementations are parameterized. Certain algorithm settings (e.g. hashtable size) and encoding details (e.g. endianness) are extracted from the core logic and put into Parameters structures. Each protocol has at least a set of compat parameters that is consistent with the reference implementation, validated in sync-interop. In the future, there would be alternative parameter sets optimized for the modern web (e.g. smaller code bundle size), but incompatible with the reference implementation.

NOTICE: PSync commit d83af5255db9c4a557264542647f7ccb281e6840 (2024-04-09) introduces breaking changes to the FullSync algorithm and codec. This library has been adjusted to support the changed encoding, but does not yet implement the improved algorithm.