Store remote features in PeersDb
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eclair-core/src/main/scala/fr/acinq/eclair/db/pg/PgPeersDb.scala
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thomash-acinq
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Jan 13, 2025
We only store information about our peers when we succeed in making an outgoing connection to them. The only informaiton we stored was the address that we used when connecting. We now also store the features supported by our peer when we last connected to them. It's important to note that this means that we currently don't store peers that always connect to us (e.g. mobile wallet users that never have a stable address): we will address that in the next commit.
Once we have a channel with a peer that connected to us, we store their details in our DB. We don't store the address they're connecting from, because we don't know if we will be able to connect to them using this address, but we store their features.
- Use separate function when updating features only - Remove DB write before channel ready for incoming connection
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We only store information about our peers when we succeed in making an outgoing connection to them. The only information we stored was the address that we used when connecting. We now also store the features supported by our peer when we last connected to them.
It's important to note that this means that we previously didn't store peers that always connect to us (e.g. mobile wallet users that never have a stable address): we now store their features in our DB once we have a channel with them. For private peers that always connect to us, we will never store an address: it's their responsibility to connect back to us on disconnection.