use chain::chaininterface::{BroadcasterInterface,ChainListener,FeeEstimator};
use chain::transaction::OutPoint;
use ln::channel::{Channel, ChannelError};
-use ln::channelmonitor::{ChannelMonitor, ChannelMonitorUpdate, ChannelMonitorUpdateErr, ManyChannelMonitor, HTLC_FAIL_BACK_BUFFER, CLTV_CLAIM_BUFFER, LATENCY_GRACE_PERIOD_BLOCKS, ANTI_REORG_DELAY};
+use ln::channelmonitor::{ChannelMonitor, ChannelMonitorUpdate, ChannelMonitorUpdateErr, ManyChannelMonitor, HTLC_FAIL_BACK_BUFFER, CLTV_CLAIM_BUFFER, LATENCY_GRACE_PERIOD_BLOCKS, ANTI_REORG_DELAY, MonitorEvent};
use ln::features::{InitFeatures, NodeFeatures};
use routing::router::{Route, RouteHop};
use ln::msgs;
Err(e) => { Err(APIError::APIMisuseError { err: e.err })}
}
}
+
+ /// Process pending events from the ManyChannelMonitor.
+ fn process_pending_monitor_events(&self) {
+ let mut failed_channels = Vec::new();
+ {
+ for monitor_event in self.monitor.get_and_clear_pending_monitor_events() {
+ match monitor_event {
+ MonitorEvent::HTLCEvent(htlc_update) => {
+ if let Some(preimage) = htlc_update.payment_preimage {
+ log_trace!(self.logger, "Claiming HTLC with preimage {} from our monitor", log_bytes!(preimage.0));
+ self.claim_funds_internal(self.channel_state.lock().unwrap(), htlc_update.source, preimage);
+ } else {
+ log_trace!(self.logger, "Failing HTLC with hash {} from our monitor", log_bytes!(htlc_update.payment_hash.0));
+ self.fail_htlc_backwards_internal(self.channel_state.lock().unwrap(), htlc_update.source, &htlc_update.payment_hash, HTLCFailReason::Reason { failure_code: 0x4000 | 8, data: Vec::new() });
+ }
+ },
+ MonitorEvent::CommitmentTxBroadcasted(funding_outpoint) => {
+ let mut channel_lock = self.channel_state.lock().unwrap();
+ let channel_state = &mut *channel_lock;
+ let by_id = &mut channel_state.by_id;
+ let short_to_id = &mut channel_state.short_to_id;
+ let pending_msg_events = &mut channel_state.pending_msg_events;
+ if let Some(mut chan) = by_id.remove(&funding_outpoint.to_channel_id()) {
+ if let Some(short_id) = chan.get_short_channel_id() {
+ short_to_id.remove(&short_id);
+ }
+ failed_channels.push(chan.force_shutdown(false));
+ if let Ok(update) = self.get_channel_update(&chan) {
+ pending_msg_events.push(events::MessageSendEvent::BroadcastChannelUpdate {
+ msg: update
+ });
+ }
+ }
+ },
+ }
+ }
+ }
+
+ for failure in failed_channels.drain(..) {
+ self.finish_force_close_channel(failure);
+ }
+ }
}
impl<ChanSigner: ChannelKeys, M: Deref, T: Deref, K: Deref, F: Deref, L: Deref> events::MessageSendEventsProvider for ChannelManager<ChanSigner, M, T, K, F, L>
L::Target: Logger,
{
fn get_and_clear_pending_msg_events(&self) -> Vec<events::MessageSendEvent> {
- // TODO: Event release to users and serialization is currently race-y: it's very easy for a
- // user to serialize a ChannelManager with pending events in it and lose those events on
- // restart. This is doubly true for the fail/fulfill-backs from monitor events!
- {
- //TODO: This behavior should be documented.
- for htlc_update in self.monitor.get_and_clear_pending_htlcs_updated() {
- if let Some(preimage) = htlc_update.payment_preimage {
- log_trace!(self.logger, "Claiming HTLC with preimage {} from our monitor", log_bytes!(preimage.0));
- self.claim_funds_internal(self.channel_state.lock().unwrap(), htlc_update.source, preimage);
- } else {
- log_trace!(self.logger, "Failing HTLC with hash {} from our monitor", log_bytes!(htlc_update.payment_hash.0));
- self.fail_htlc_backwards_internal(self.channel_state.lock().unwrap(), htlc_update.source, &htlc_update.payment_hash, HTLCFailReason::Reason { failure_code: 0x4000 | 8, data: Vec::new() });
- }
- }
- }
+ //TODO: This behavior should be documented. It's non-intuitive that we query
+ // ChannelMonitors when clearing other events.
+ self.process_pending_monitor_events();
let mut ret = Vec::new();
let mut channel_state = self.channel_state.lock().unwrap();
L::Target: Logger,
{
fn get_and_clear_pending_events(&self) -> Vec<events::Event> {
- // TODO: Event release to users and serialization is currently race-y: it's very easy for a
- // user to serialize a ChannelManager with pending events in it and lose those events on
- // restart. This is doubly true for the fail/fulfill-backs from monitor events!
- {
- //TODO: This behavior should be documented.
- for htlc_update in self.monitor.get_and_clear_pending_htlcs_updated() {
- if let Some(preimage) = htlc_update.payment_preimage {
- log_trace!(self.logger, "Claiming HTLC with preimage {} from our monitor", log_bytes!(preimage.0));
- self.claim_funds_internal(self.channel_state.lock().unwrap(), htlc_update.source, preimage);
- } else {
- log_trace!(self.logger, "Failing HTLC with hash {} from our monitor", log_bytes!(htlc_update.payment_hash.0));
- self.fail_htlc_backwards_internal(self.channel_state.lock().unwrap(), htlc_update.source, &htlc_update.payment_hash, HTLCFailReason::Reason { failure_code: 0x4000 | 8, data: Vec::new() });
- }
- }
- }
+ //TODO: This behavior should be documented. It's non-intuitive that we query
+ // ChannelMonitors when clearing other events.
+ self.process_pending_monitor_events();
let mut ret = Vec::new();
let mut pending_events = self.pending_events.lock().unwrap();
}
}
}
- if channel.is_funding_initiated() && channel.channel_monitor().would_broadcast_at_height(height, &self.logger) {
- if let Some(short_id) = channel.get_short_channel_id() {
- short_to_id.remove(&short_id);
- }
- // If would_broadcast_at_height() is true, the channel_monitor will broadcast
- // the latest local tx for us, so we should skip that here (it doesn't really
- // hurt anything, but does make tests a bit simpler).
- failed_channels.push(channel.force_shutdown(false));
- if let Ok(update) = self.get_channel_update(&channel) {
- pending_msg_events.push(events::MessageSendEvent::BroadcastChannelUpdate {
- msg: update
- });
- }
- return false;
- }
true
});
projects / rust-lightning / blobdiff