Module sim_node

Structs§

ChannelPolicy: Represents one node in the channel’s forwarding policy and restrictions. Note that this doesn’t directly map to a single concept in the protocol, a few things have been combined for the sake of simplicity. Used to manage the lightning “state machine” and check that HTLCs are added in accordance of the advertised policy.
SimGraph: Graph is the top level struct that is used to coordinate simulation of lightning nodes.
SimulatedChannel: Represents a simulated channel, and is responsible for managing addition and removal of HTLCs from the channel and sanity checks. Channel state is tracked unidirectionally for each participant in the channel.
WrappedLog: WrappedLog implements LDK’s logging trait so that we can provide pathfinding with a logger that uses our existing logger.

ForwardingError: ForwardingError represents the various errors that we can run into when forwarding payments in a simulated network. Since we’re not using real lightning nodes, these errors are not obfuscated and can be propagated to the sending node and used for analysis.

ln_node_from_graph: Produces a map of node public key to lightning node implementation to be used for simulations.
populate_network_graph: Populates a network graph based on the set of simulated channels provided. This function only applies channel announcements, which has the effect of adding the nodes in each channel to the graph, because LDK does not export all of the fields required to apply node announcements. This means that we will not have node-level information (such as features) available in the routing graph.