Upcoming changes to PacketBatch to support variable sized packets will
modify the internals of PacketBatch. So, this change removes usage of
the internal packet struct and instead uses accessors (which are
currently just wrappers of Vector functions but will change down the
road).
* refactor packet_threshold adjustment code into own struct and add unittest for it
* fix a typo in error message
* code review feedbacks
* another code review feedback
* Update core/src/ancestor_hashes_service.rs
Co-authored-by: Trent Nelson <trent.a.b.nelson@gmail.com>
* share packet threshold with repair service (credit to carl)
Co-authored-by: Trent Nelson <trent.a.b.nelson@gmail.com>