X-Git-Url: http://git.bitcoin.ninja/index.cgi?a=blobdiff_plain;f=lightning%2Fsrc%2Fchain%2Fmod.rs;h=718990c4557bc30676179e13bc3afecbbec07e06;hb=74a9be6956bd988a61f08bc9706f3d5503496be7;hp=cec09459233daef7b9c38582e17f984d10fa0d6d;hpb=99938455f7d9a18bf94694b8b18f4a82139b93cc;p=rust-lightning

diff --git a/lightning/src/chain/mod.rs b/lightning/src/chain/mod.rs
index cec09459..718990c4 100644
--- a/lightning/src/chain/mod.rs
+++ b/lightning/src/chain/mod.rs
@@ -203,6 +203,9 @@ pub trait Watch<ChannelSigner: Sign> {
 	/// with any spends of outputs returned by [`get_outputs_to_watch`]. In practice, this means
 	/// calling [`block_connected`] and [`block_disconnected`] on the monitor.
 	///
+	/// Note: this interface MUST error with `ChannelMonitorUpdateErr::PermanentFailure` if
+	/// the given `funding_txo` has previously been registered via `watch_channel`.
+	///
 	/// [`get_outputs_to_watch`]: channelmonitor::ChannelMonitor::get_outputs_to_watch
 	/// [`block_connected`]: channelmonitor::ChannelMonitor::block_connected
 	/// [`block_disconnected`]: channelmonitor::ChannelMonitor::block_disconnected