use core::ops::Deref;
use bitcoin::hashes::hex::ToHex;
-use io::{self};
-use routing::scoring::WriteableScore;
+use crate::io::{self};
+use crate::routing::scoring::WriteableScore;
-use crate::{chain::{keysinterface::{Sign, KeysInterface}, self, transaction::{OutPoint}, chaininterface::{BroadcasterInterface, FeeEstimator}, chainmonitor::{Persist, MonitorUpdateId}, channelmonitor::{ChannelMonitor, ChannelMonitorUpdate}}, ln::channelmanager::ChannelManager, routing::network_graph::NetworkGraph};
+use crate::{chain::{keysinterface::{Sign, KeysInterface}, self, transaction::{OutPoint}, chaininterface::{BroadcasterInterface, FeeEstimator}, chainmonitor::{Persist, MonitorUpdateId}, channelmonitor::{ChannelMonitor, ChannelMonitorUpdate}}, ln::channelmanager::ChannelManager, routing::gossip::NetworkGraph};
use super::{logger::Logger, ser::Writeable};
/// Trait for a key-value store for persisting some writeable object at some key
}
/// Trait that handles persisting a [`ChannelManager`], [`NetworkGraph`], and [`WriteableScore`] to disk.
-pub trait Persister<'a, Signer: Sign, M: Deref, T: Deref, K: Deref, F: Deref, L: Deref, S>
- where M::Target: 'static + chain::Watch<Signer>,
+pub trait Persister<'a, M: Deref, T: Deref, K: Deref, F: Deref, L: Deref, S: WriteableScore<'a>>
+ where M::Target: 'static + chain::Watch<<K::Target as KeysInterface>::Signer>,
T::Target: 'static + BroadcasterInterface,
- K::Target: 'static + KeysInterface<Signer = Signer>,
+ K::Target: 'static + KeysInterface,
F::Target: 'static + FeeEstimator,
L::Target: 'static + Logger,
- S: WriteableScore<'a>,
{
/// Persist the given ['ChannelManager'] to disk, returning an error if persistence failed.
- fn persist_manager(&self, channel_manager: &ChannelManager<Signer, M, T, K, F, L>) -> Result<(), io::Error>;
+ fn persist_manager(&self, channel_manager: &ChannelManager<M, T, K, F, L>) -> Result<(), io::Error>;
/// Persist the given [`NetworkGraph`] to disk, returning an error if persistence failed.
- fn persist_graph(&self, network_graph: &NetworkGraph) -> Result<(), io::Error>;
+ fn persist_graph(&self, network_graph: &NetworkGraph<L>) -> Result<(), io::Error>;
/// Persist the given [`WriteableScore`] to disk, returning an error if persistence failed.
fn persist_scorer(&self, scorer: &S) -> Result<(), io::Error>;
}
-impl<'a, A: KVStorePersister, Signer: Sign, M: Deref, T: Deref, K: Deref, F: Deref, L: Deref, S> Persister<'a, Signer, M, T, K, F, L, S> for A
- where M::Target: 'static + chain::Watch<Signer>,
+impl<'a, A: KVStorePersister, M: Deref, T: Deref, K: Deref, F: Deref, L: Deref, S: WriteableScore<'a>> Persister<'a, M, T, K, F, L, S> for A
+ where M::Target: 'static + chain::Watch<<K::Target as KeysInterface>::Signer>,
T::Target: 'static + BroadcasterInterface,
- K::Target: 'static + KeysInterface<Signer = Signer>,
+ K::Target: 'static + KeysInterface,
F::Target: 'static + FeeEstimator,
L::Target: 'static + Logger,
- S: WriteableScore<'a>,
{
/// Persist the given ['ChannelManager'] to disk with the name "manager", returning an error if persistence failed.
- fn persist_manager(&self, channel_manager: &ChannelManager<Signer, M, T, K, F, L>) -> Result<(), io::Error> {
+ fn persist_manager(&self, channel_manager: &ChannelManager<M, T, K, F, L>) -> Result<(), io::Error> {
self.persist("manager", channel_manager)
}
/// Persist the given [`NetworkGraph`] to disk with the name "network_graph", returning an error if persistence failed.
- fn persist_graph(&self, network_graph: &NetworkGraph) -> Result<(), io::Error> {
+ fn persist_graph(&self, network_graph: &NetworkGraph<L>) -> Result<(), io::Error> {
self.persist("network_graph", network_graph)
}
impl<ChannelSigner: Sign, K: KVStorePersister> Persist<ChannelSigner> for K {
// TODO: We really need a way for the persister to inform the user that its time to crash/shut
// down once these start returning failure.
- // A PermanentFailure implies we need to shut down since we're force-closing channels without
- // even broadcasting!
+ // A PermanentFailure implies we should probably just shut down the node since we're
+ // force-closing channels without even broadcasting!
- fn persist_new_channel(&self, funding_txo: OutPoint, monitor: &ChannelMonitor<ChannelSigner>, _update_id: MonitorUpdateId) -> Result<(), chain::ChannelMonitorUpdateErr> {
+ fn persist_new_channel(&self, funding_txo: OutPoint, monitor: &ChannelMonitor<ChannelSigner>, _update_id: MonitorUpdateId) -> chain::ChannelMonitorUpdateStatus {
let key = format!("monitors/{}_{}", funding_txo.txid.to_hex(), funding_txo.index);
- self.persist(&key, monitor)
- .map_err(|_| chain::ChannelMonitorUpdateErr::PermanentFailure)
+ match self.persist(&key, monitor) {
+ Ok(()) => chain::ChannelMonitorUpdateStatus::Completed,
+ Err(_) => chain::ChannelMonitorUpdateStatus::PermanentFailure,
+ }
}
- fn update_persisted_channel(&self, funding_txo: OutPoint, _update: &Option<ChannelMonitorUpdate>, monitor: &ChannelMonitor<ChannelSigner>, _update_id: MonitorUpdateId) -> Result<(), chain::ChannelMonitorUpdateErr> {
+ fn update_persisted_channel(&self, funding_txo: OutPoint, _update: &Option<ChannelMonitorUpdate>, monitor: &ChannelMonitor<ChannelSigner>, _update_id: MonitorUpdateId) -> chain::ChannelMonitorUpdateStatus {
let key = format!("monitors/{}_{}", funding_txo.txid.to_hex(), funding_txo.index);
- self.persist(&key, monitor)
- .map_err(|_| chain::ChannelMonitorUpdateErr::PermanentFailure)
+ match self.persist(&key, monitor) {
+ Ok(()) => chain::ChannelMonitorUpdateStatus::Completed,
+ Err(_) => chain::ChannelMonitorUpdateStatus::PermanentFailure,
+ }
}
}