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channeldb: BigSize migration, store zero-conf, scid-alias bits

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This introduces a BigSize migration that is used to expand the width
of the ChannelStatus and ChannelType fields. Three channel "types"
are added - ZeroConfBit, ScidAliasChanBit, and ScidAliasFeatureBit.
ScidAliasChanBit denotes that the scid-alias channel type was
negotiated for the channel. ScidAliasFeatureBit denotes that the
scid-alias feature bit was negotiated during the *lifetime* of the
channel. Several helper functions on the OpenChannel struct are
exposed to aid callers from different packages.

The RefreshShortChanID has been renamed to Refresh.

A new function BroadcastHeight is used to guard access to the
mutable FundingBroadcastHeight member. This prevents data races.
This commit is contained in:
eugene
2022-04-04 16:09:15 -04:00
parent 3ff8eb899c
commit c9f5912601
13 changed files with 503 additions and 28 deletions
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4
chanrestore.go
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@@ -243,7 +243,7 @@ func (c *chanDBRestorer) RestoreChansFromSingles(backups ...chanbackup.Single) e
// funding broadcast height to a reasonable value that we
// determined earlier.
case channel.ShortChanID().BlockHeight == 0:
channel.FundingBroadcastHeight = firstChanHeight
channel.SetBroadcastHeight(firstChanHeight)
// Fallback case 2: It is extremely unlikely at this point that
// a channel we are trying to restore has a coinbase funding TX.
@@ -255,7 +255,7 @@ func (c *chanDBRestorer) RestoreChansFromSingles(backups ...chanbackup.Single) e
// unconfirmed one here.
case channel.ShortChannelID.TxIndex == 0:
broadcastHeight := channel.ShortChannelID.BlockHeight
channel.FundingBroadcastHeight = broadcastHeight
channel.SetBroadcastHeight(broadcastHeight)
channel.ShortChannelID.BlockHeight = 0
}
}