Remove global availability logic for testing async signing

Author: alecchendev

lightning/src/chain/channelmonitor.rs

@@ -1923,12 +1923,6 @@ impl<Signer: EcdsaChannelSigner> ChannelMonitor<Signer> {
 		self.inner.lock().unwrap().counterparty_payment_script = script;
 	}
 
-	#[cfg(test)]
-	pub fn do_signer_call<F: FnMut(&Signer) -> ()>(&self, mut f: F) {
-		let inner = self.inner.lock().unwrap();
-		f(&inner.onchain_tx_handler.signer);
-	}
-
 	#[cfg(test)]
 	pub fn do_mut_signer_call<F: FnMut(&mut Signer) -> ()>(&self, mut f: F) {
 		let mut inner = self.inner.lock().unwrap();

lightning/src/ln/channel.rs

@@ -2116,12 +2116,6 @@ impl<SP: Deref> ChannelContext<SP> where SP::Target: SignerProvider  {
 		self.outbound_scid_alias
 	}
 
-	/// Returns the holder signer for this channel.
-	#[cfg(test)]
-	pub fn get_signer(&self) -> &ChannelSignerType<SP> {
-		return &self.holder_signer
-	}
-
 	/// Returns the holder signer for this channel.
 	#[cfg(test)]
 	pub fn get_mut_signer(&mut self) -> &mut ChannelSignerType<SP> {

lightning/src/ln/functional_test_utils.rs

@@ -484,47 +484,6 @@ impl<'a, 'b, 'c> Node<'a, 'b, 'c> {
 	pub fn get_block_header(&self, height: u32) -> Header {
 		self.blocks.lock().unwrap()[height as usize].0.header
 	}
-	/// Changes the channel signer's availability for the specified peer and channel.
-	///
-	/// When `available` is set to `true`, the channel signer will behave normally. When set to
-	/// `false`, the channel signer will act like an off-line remote signer and will return `Err` for
-	/// several of the signing methods. Currently, only `get_per_commitment_point` and
-	/// `release_commitment_secret` are affected by this setting.
-	#[cfg(test)]
-	pub fn set_channel_signer_available(&self, peer_id: &PublicKey, chan_id: &ChannelId, available: bool) {
-		use crate::sign::ChannelSigner;
-		log_debug!(self.logger, "Setting channel signer for {} as available={}", chan_id, available);
-
-		let per_peer_state = self.node.per_peer_state.read().unwrap();
-		let chan_lock = per_peer_state.get(peer_id).unwrap().lock().unwrap();
-
-		let mut channel_keys_id = None;
-		if let Some(chan) = chan_lock.channel_by_id.get(chan_id).map(|phase| phase.context()) {
-			chan.get_signer().as_ecdsa().unwrap().set_available(available);
-			channel_keys_id = Some(chan.channel_keys_id);
-		}
-
-		let mut monitor = None;
-		for (funding_txo, channel_id) in self.chain_monitor.chain_monitor.list_monitors() {
-			if *chan_id == channel_id {
-				monitor = self.chain_monitor.chain_monitor.get_monitor(funding_txo).ok();
-			}
-		}
-		if let Some(monitor) = monitor {
-			monitor.do_signer_call(|signer| {
-				channel_keys_id = channel_keys_id.or(Some(signer.inner.channel_keys_id()));
-				signer.set_available(available)
-			});
-		}
-
-		if available {
-			self.keys_manager.unavailable_signers.lock().unwrap()
-				.remove(channel_keys_id.as_ref().unwrap());
-		} else {
-			self.keys_manager.unavailable_signers.lock().unwrap()
-				.insert(channel_keys_id.unwrap());
-		}
-	}
 
 	/// Toggles this node's signer to be available for the given signer operation.
 	/// This is useful for testing behavior for restoring an async signer that previously

lightning/src/util/test_channel_signer.rs

@@ -71,9 +71,6 @@ pub struct TestChannelSigner {
 	/// Channel state used for policy enforcement
 	pub state: Arc<Mutex<EnforcementState>>,
 	pub disable_revocation_policy_check: bool,
-	/// When `true` (the default), the signer will respond immediately with signatures. When `false`,
-	/// the signer will return an error indicating that it is unavailable.
-	pub available: Arc<Mutex<bool>>,
 	/// Set of signer operations that are disabled. If an operation is disabled,
 	/// the signer will return `Err` when the corresponding method is called.
 	pub disabled_signer_ops: Arc<Mutex<HashSet<SignerOp>>>,
@@ -130,7 +127,6 @@ impl TestChannelSigner {
 			inner,
 			state,
 			disable_revocation_policy_check: false,
-			available: Arc::new(Mutex::new(true)),
 			disabled_signer_ops: Arc::new(Mutex::new(new_hash_set())),
 		}
 	}
@@ -145,7 +141,6 @@ impl TestChannelSigner {
 			inner,
 			state,
 			disable_revocation_policy_check,
-			available: Arc::new(Mutex::new(true)),
 			disabled_signer_ops: Arc::new(Mutex::new(new_hash_set())),
 		}
 	}
@@ -157,15 +152,6 @@ impl TestChannelSigner {
 		self.state.lock().unwrap()
 	}
 
-	/// Marks the signer's availability.
-	///
-	/// When `true`, methods are forwarded to the underlying signer as normal. When `false`, some
-	/// methods will return `Err` indicating that the signer is unavailable. Intended to be used for
-	/// testing asynchronous signing.
-	pub fn set_available(&self, available: bool) {
-		*self.available.lock().unwrap() = available;
-	}
-
 	pub fn enable_op(&mut self, signer_op: SignerOp) {
 		self.disabled_signer_ops.lock().unwrap().remove(&signer_op);
 	}

lightning/src/util/test_utils.rs

@@ -1277,9 +1277,6 @@ impl SignerProvider for TestKeysInterface {
 		let keys = self.backing.derive_channel_signer(channel_value_satoshis, channel_keys_id);
 		let state = self.make_enforcement_state_cell(keys.commitment_seed);
 		let mut signer = TestChannelSigner::new_with_revoked(keys, state, self.disable_revocation_policy_check);
-		if self.unavailable_signers.lock().unwrap().contains(&channel_keys_id) {
-			signer.set_available(false);
-		}
 		if let Some(ops) = self.unavailable_signers_ops.lock().unwrap().get(&channel_keys_id) {
 			for &op in ops {
 				signer.disable_op(op);