The prefix handler applies each update to the routing table in memory as
it handles it, sorted into announcements and withdrawals as for the live
route tables. Each flush writes the table's changes first. A failed write
puts its changes and new peers back in the table, so the next write takes
them with each pair's content then. Stop writes the last changes, and
logs those left when its deadline passes.
Startup reads the table before the streamer connects, and logs its pairs,
peers and time. The per-peer counts are a slice, so the read takes about
a third less time. The health check's start period is 60 seconds, so a
full table's read fits before upaas looks.
Model: opus-5-5
A new package holds every prefix some peer carries. For each prefix and
origin AS it keeps the set of peers that carry it, one bit per peer,
and the two newest of their routes in full. It applies announcements,
withdrawals and peers' sessions going down by the rule confirmed on the
issue, and records which pairs changed for the database writes to come.
It answers the IP lookup, an AS's prefixes, a prefix's origins, a sample
of one mask length, and the counts the stats show. Nothing uses it yet.
The peer sets use github.com/bits-and-blooms/bitset. The kept routes'
times are held in order in github.com/google/btree, so the oldest and
newest need no scan.
Model: opus-5-5
sneak
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