//! This module contains a simple key-value store trait [`KVStore`] that
//! allows one to implement the persistence for [`ChannelManager`], [`NetworkGraph`],
//! and [`ChannelMonitor`] all in one place.
+//!
+//! [`ChannelManager`]: crate::ln::channelmanager::ChannelManager
use core::cmp;
-use core::convert::{TryFrom, TryInto};
use core::ops::Deref;
use core::str::FromStr;
use bitcoin::{BlockHash, Txid};
use crate::{io, log_error};
-use crate::alloc::string::ToString;
use crate::prelude::*;
use crate::chain;
use crate::chain::chaininterface::{BroadcasterInterface, FeeEstimator};
use crate::chain::chainmonitor::{Persist, MonitorUpdateId};
-use crate::sign::{EntropySource, NodeSigner, ecdsa::WriteableEcdsaChannelSigner, SignerProvider};
+use crate::sign::{EntropySource, ecdsa::WriteableEcdsaChannelSigner, SignerProvider};
use crate::chain::transaction::OutPoint;
use crate::chain::channelmonitor::{ChannelMonitor, ChannelMonitorUpdate, CLOSED_CHANNEL_UPDATE_ID};
-use crate::ln::channelmanager::ChannelManager;
-use crate::routing::router::Router;
+use crate::ln::channelmanager::AChannelManager;
use crate::routing::gossip::NetworkGraph;
use crate::routing::scoring::WriteableScore;
use crate::util::logger::Logger;
pub const KVSTORE_NAMESPACE_KEY_MAX_LEN: usize = 120;
/// The primary namespace under which the [`ChannelManager`] will be persisted.
+///
+/// [`ChannelManager`]: crate::ln::channelmanager::ChannelManager
pub const CHANNEL_MANAGER_PERSISTENCE_PRIMARY_NAMESPACE: &str = "";
/// The secondary namespace under which the [`ChannelManager`] will be persisted.
+///
+/// [`ChannelManager`]: crate::ln::channelmanager::ChannelManager
pub const CHANNEL_MANAGER_PERSISTENCE_SECONDARY_NAMESPACE: &str = "";
/// The key under which the [`ChannelManager`] will be persisted.
+///
+/// [`ChannelManager`]: crate::ln::channelmanager::ChannelManager
pub const CHANNEL_MANAGER_PERSISTENCE_KEY: &str = "manager";
/// The primary namespace under which [`ChannelMonitor`]s will be persisted.
}
/// Trait that handles persisting a [`ChannelManager`], [`NetworkGraph`], and [`WriteableScore`] to disk.
-pub trait Persister<'a, M: Deref, T: Deref, ES: Deref, NS: Deref, SP: Deref, F: Deref, R: Deref, L: Deref, S: WriteableScore<'a>>
- where M::Target: 'static + chain::Watch<<SP::Target as SignerProvider>::EcdsaSigner>,
- T::Target: 'static + BroadcasterInterface,
- ES::Target: 'static + EntropySource,
- NS::Target: 'static + NodeSigner,
- SP::Target: 'static + SignerProvider,
- F::Target: 'static + FeeEstimator,
- R::Target: 'static + Router,
- L::Target: 'static + Logger,
+///
+/// [`ChannelManager`]: crate::ln::channelmanager::ChannelManager
+pub trait Persister<'a, CM: Deref, L: Deref, S: WriteableScore<'a>>
+where
+ CM::Target: 'static + AChannelManager,
+ L::Target: 'static + Logger,
{
/// Persist the given ['ChannelManager'] to disk, returning an error if persistence failed.
- fn persist_manager(&self, channel_manager: &ChannelManager<M, T, ES, NS, SP, F, R, L>) -> Result<(), io::Error>;
+ ///
+ /// [`ChannelManager`]: crate::ln::channelmanager::ChannelManager
+ fn persist_manager(&self, channel_manager: &CM) -> Result<(), io::Error>;
/// Persist the given [`NetworkGraph`] to disk, returning an error if persistence failed.
fn persist_graph(&self, network_graph: &NetworkGraph<L>) -> Result<(), io::Error>;
}
-impl<'a, A: KVStore, M: Deref, T: Deref, ES: Deref, NS: Deref, SP: Deref, F: Deref, R: Deref, L: Deref, S: WriteableScore<'a>> Persister<'a, M, T, ES, NS, SP, F, R, L, S> for A
- where M::Target: 'static + chain::Watch<<SP::Target as SignerProvider>::EcdsaSigner>,
- T::Target: 'static + BroadcasterInterface,
- ES::Target: 'static + EntropySource,
- NS::Target: 'static + NodeSigner,
- SP::Target: 'static + SignerProvider,
- F::Target: 'static + FeeEstimator,
- R::Target: 'static + Router,
- L::Target: 'static + Logger,
+impl<'a, A: KVStore + ?Sized, CM: Deref, L: Deref, S: WriteableScore<'a>> Persister<'a, CM, L, S> for A
+where
+ CM::Target: 'static + AChannelManager,
+ L::Target: 'static + Logger,
{
- /// Persist the given [`ChannelManager`] to disk, returning an error if persistence failed.
- fn persist_manager(&self, channel_manager: &ChannelManager<M, T, ES, NS, SP, F, R, L>) -> Result<(), io::Error> {
+ fn persist_manager(&self, channel_manager: &CM) -> Result<(), io::Error> {
self.write(CHANNEL_MANAGER_PERSISTENCE_PRIMARY_NAMESPACE,
CHANNEL_MANAGER_PERSISTENCE_SECONDARY_NAMESPACE,
CHANNEL_MANAGER_PERSISTENCE_KEY,
- &channel_manager.encode())
+ &channel_manager.get_cm().encode())
}
- /// Persist the given [`NetworkGraph`] to disk, returning an error if persistence failed.
fn persist_graph(&self, network_graph: &NetworkGraph<L>) -> Result<(), io::Error> {
self.write(NETWORK_GRAPH_PERSISTENCE_PRIMARY_NAMESPACE,
NETWORK_GRAPH_PERSISTENCE_SECONDARY_NAMESPACE,
&network_graph.encode())
}
- /// Persist the given [`WriteableScore`] to disk, returning an error if persistence failed.
fn persist_scorer(&self, scorer: &S) -> Result<(), io::Error> {
self.write(SCORER_PERSISTENCE_PRIMARY_NAMESPACE,
SCORER_PERSISTENCE_SECONDARY_NAMESPACE,
}
}
-impl<ChannelSigner: WriteableEcdsaChannelSigner, K: KVStore> Persist<ChannelSigner> for K {
+impl<ChannelSigner: WriteableEcdsaChannelSigner, K: KVStore + ?Sized> 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.
// Then we should return InProgress rather than UnrecoverableError, implying we should probably
#[cfg(test)]
mod tests {
use super::*;
- use crate::chain::chainmonitor::Persist;
use crate::chain::ChannelMonitorUpdateStatus;
use crate::events::{ClosureReason, MessageSendEventsProvider};
use crate::ln::functional_test_utils::*;
use crate::util::test_utils::{self, TestLogger, TestStore};
use crate::{check_added_monitors, check_closed_broadcast};
+ use crate::sync::Arc;
+ use crate::util::test_channel_signer::TestChannelSigner;
const EXPECTED_UPDATES_PER_PAYMENT: u64 = 5;
.read(CHANNEL_MONITOR_UPDATE_PERSISTENCE_PRIMARY_NAMESPACE, monitor_name.as_str(), UpdateName::from(u64::MAX - 1).as_str())
.is_err());
}
+
+ fn persist_fn<P: Deref, ChannelSigner: WriteableEcdsaChannelSigner>(_persist: P) -> bool where P::Target: Persist<ChannelSigner> {
+ true
+ }
+
+ #[test]
+ fn kvstore_trait_object_usage() {
+ let store: Arc<dyn KVStore + Send + Sync> = Arc::new(TestStore::new(false));
+ assert!(persist_fn::<_, TestChannelSigner>(store.clone()));
+ }
}
projects / rust-lightning / blobdiff