Commits on Sep 11, 2024

1. netsync: Track best known blocks per peer. …

   This reworks the net sync manager block announcement handling to keep
   track of the best known block announced by each peer as determined by
   having the most cumulative proof of work.
   
   The primary motivation is to provide a relatively efficient mechanism to
   discover which blocks are available to download from each peer to
   eventually support downloading multiple blocks in parallel.
   
   It also doubles to increase robustness of best height reporting of each
   peer once the initial headers sync process is complete since the values
   are only updated when the header has more cumulative proof of work
   versus simply having a larger height since, although exceedingly rare in
   practice, it is possible for a chain with fewer blocks to have more
   cumulative work.

   

   davecgh committed Sep 11, 2024
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2. netsync: Track peer for requested blocks. …

   This modifies the map that tracks requests for blocks to keep track of
   which peer the block was requested from.  This is currently not used
   since blocks are only downloaded from a single sync peer, but it helps
   pave the way to handling downloading blocks from multiple peers in
   parallel.

   

   davecgh committed Sep 11, 2024
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