Use live, not usable for list_usable_channels

[rust-lightning] / src / util / errors.rs

diff --git a/src/util/errors.rs b/src/util/errors.rs
index 0700b451c670d67fce74d0a4f3f42a9b2554dacf..6513beefe794e82f9651e61b55739a5f7d8b651a 100644 (file)
--- a/src/util/errors.rs
+++ b/src/util/errors.rs
@@ -1,15 +1,48 @@
+//! Error types live here.
+
 use std::fmt;
 
+/// Indicates an error on the client's part (usually some variant of attempting to use too-low or
+/// too-high values)
 pub enum APIError {
-       APIMisuseError {err: &'static str},
-       FeeRateTooHigh {err: String, feerate: u64},
+       /// Indicates the API was wholly misused (see err for more). Cases where these can be returned
+       /// are documented, but generally indicates some precondition of a function was violated.
+       APIMisuseError {
+               /// A human-readable error message
+               err: &'static str
+       },
+       /// Due to a high feerate, we were unable to complete the request.
+       /// For example, this may be returned if the feerate implies we cannot open a channel at the
+       /// requested value, but opening a larger channel would succeed.
+       FeeRateTooHigh {
+               /// A human-readable error message
+               err: String,
+               /// The feerate which was too high.
+               feerate: u64
+       },
+
+       /// Invalid route or parameters (cltv_delta, fee, pubkey) was specified
+       RouteError {
+               /// A human-readable error message
+               err: &'static str
+       },
+
+
+       /// We were unable to complete the request since channel is disconnected or
+       /// shutdown in progress initiated by remote
+       ChannelUnavailable {
+               /// A human-readable error message
+               err: &'static str
+       }
 }
 
 impl fmt::Debug for APIError {
-  fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
+       fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
                match *self {
                        APIError::APIMisuseError {ref err} => f.write_str(err),
-                       APIError::FeeRateTooHigh {ref err, ref feerate} => write!(f, "{} feerate: {}", err, feerate)
+                       APIError::FeeRateTooHigh {ref err, ref feerate} => write!(f, "{} feerate: {}", err, feerate),
+                       APIError::RouteError {ref err} => f.write_str(err),
+                       APIError::ChannelUnavailable {ref err} => f.write_str(err),
                }
-  }
+       }
 }