Elle Mouton
fa7c1e250b
Having a `ForEachChannel` method on the `LightningNode` struct itself results in a `kvdb.Backend` object needing to be stored within the LightningNode struct. In this commit, this method is replaced with a `ForEachNodeChannel` method on the `ChannelGraph` struct will perform the same function without needing the db pointer to be stored within the LightningNode. This change, the LightningNode struct more closely represents the schema on disk. The existing `ForEachNodeChannel` method on `ChannelGraph` is renamed to `ForEachNodeDirectedChannel`. It performs a slightly different function since it's call-back operates on Cached policies.
channeldb
The channeldb implements the persistent storage engine for lnd and
generically a data storage layer for the required state within the Lightning
Network. The backing storage engine is
boltdb, an embedded pure-go key-value store
based off of LMDB.
The package implements an object-oriented storage model with queries and mutations flowing through a particular object instance rather than the database itself. The storage implemented by the objects includes: open channels, past commitment revocation states, the channel graph which includes authenticated node and channel announcements, outgoing payments, and invoices
Installation and Updating
$ go get -u github.com/lightningnetwork/lnd/channeldb