_ Git - ldk-c-bindings/blob - lightning-c-bindings/src/lightning/util/errors.rs

   1 // This file is Copyright its original authors, visible in version control
   2 // history and in the source files from which this was generated.
   3 //
   4 // This file is licensed under the license available in the LICENSE or LICENSE.md
   5 // file in the root of this repository or, if no such file exists, the same
   6 // license as that which applies to the original source files from which this
   7 // source was automatically generated.
   8
   9 //! Error types live here.
  10
  11 use alloc::str::FromStr;
  12 use alloc::string::String;
  13 use core::ffi::c_void;
  14 use core::convert::Infallible;
  15 use bitcoin::hashes::Hash;
  16 use crate::c_types::*;
  17 #[cfg(feature="no-std")]
  18 use alloc::{vec::Vec, boxed::Box};
  19
  20 /// Indicates an error on the client's part (usually some variant of attempting to use too-low or
  21 /// too-high values)
  22 #[derive(Clone)]
  23 #[must_use]
  24 #[repr(C)]
  25 pub enum APIError {
  26         /// Indicates the API was wholly misused (see err for more). Cases where these can be returned
  27         /// are documented, but generally indicates some precondition of a function was violated.
  28         APIMisuseError {
  29                 /// A human-readable error message
  30                 err: crate::c_types::Str,
  31         },
  32         /// Due to a high feerate, we were unable to complete the request.
  33         /// For example, this may be returned if the feerate implies we cannot open a channel at the
  34         /// requested value, but opening a larger channel would succeed.
  35         FeeRateTooHigh {
  36                 /// A human-readable error message
  37                 err: crate::c_types::Str,
  38                 /// The feerate which was too high.
  39                 feerate: u32,
  40         },
  41         /// A malformed Route was provided (eg overflowed value, node id mismatch, overly-looped route,
  42         /// too-many-hops, etc).
  43         InvalidRoute {
  44                 /// A human-readable error message
  45                 err: crate::c_types::Str,
  46         },
  47         /// We were unable to complete the request as the Channel required to do so is unable to
  48         /// complete the request (or was not found). This can take many forms, including disconnected
  49         /// peer, channel at capacity, channel shutting down, etc.
  50         ChannelUnavailable {
  51                 /// A human-readable error message
  52                 err: crate::c_types::Str,
  53         },
  54         /// An attempt to call [`chain::Watch::watch_channel`]/[`chain::Watch::update_channel`]
  55         /// returned a [`ChannelMonitorUpdateStatus::InProgress`] indicating the persistence of a
  56         /// monitor update is awaiting async resolution. Once it resolves the attempted action should
  57         /// complete automatically.
  58         ///
  59         /// [`chain::Watch::watch_channel`]: crate::chain::Watch::watch_channel
  60         /// [`chain::Watch::update_channel`]: crate::chain::Watch::update_channel
  61         /// [`ChannelMonitorUpdateStatus::InProgress`]: crate::chain::ChannelMonitorUpdateStatus::InProgress
  62         MonitorUpdateInProgress,
  63         /// [`SignerProvider::get_shutdown_scriptpubkey`] returned a shutdown scriptpubkey incompatible
  64         /// with the channel counterparty as negotiated in [`InitFeatures`].
  65         ///
  66         /// Using a SegWit v0 script should resolve this issue. If you cannot, you won't be able to open
  67         /// a channel or cooperatively close one with this peer (and will have to force-close instead).
  68         ///
  69         /// [`SignerProvider::get_shutdown_scriptpubkey`]: crate::sign::SignerProvider::get_shutdown_scriptpubkey
  70         /// [`InitFeatures`]: crate::ln::features::InitFeatures
  71         IncompatibleShutdownScript {
  72                 /// The incompatible shutdown script.
  73                 script: crate::lightning::ln::script::ShutdownScript,
  74         },
  75 }
  76 use lightning::util::errors::APIError as APIErrorImport;
  77 pub(crate) type nativeAPIError = APIErrorImport;
  78
  79 impl APIError {
  80         #[allow(unused)]
  81         pub(crate) fn to_native(&self) -> nativeAPIError {
  82                 match self {
  83                         APIError::APIMisuseError {ref err, } => {
  84                                 let mut err_nonref = Clone::clone(err);
  85                                 nativeAPIError::APIMisuseError {
  86                                         err: err_nonref.into_string(),
  87                                 }
  88                         },
  89                         APIError::FeeRateTooHigh {ref err, ref feerate, } => {
  90                                 let mut err_nonref = Clone::clone(err);
  91                                 let mut feerate_nonref = Clone::clone(feerate);
  92                                 nativeAPIError::FeeRateTooHigh {
  93                                         err: err_nonref.into_string(),
  94                                         feerate: feerate_nonref,
  95                                 }
  96                         },
  97                         APIError::InvalidRoute {ref err, } => {
  98                                 let mut err_nonref = Clone::clone(err);
  99                                 nativeAPIError::InvalidRoute {
 100                                         err: err_nonref.into_string(),
 101                                 }
 102                         },
 103                         APIError::ChannelUnavailable {ref err, } => {
 104                                 let mut err_nonref = Clone::clone(err);
 105                                 nativeAPIError::ChannelUnavailable {
 106                                         err: err_nonref.into_string(),
 107                                 }
 108                         },
 109                         APIError::MonitorUpdateInProgress => nativeAPIError::MonitorUpdateInProgress,
 110                         APIError::IncompatibleShutdownScript {ref script, } => {
 111                                 let mut script_nonref = Clone::clone(script);
 112                                 nativeAPIError::IncompatibleShutdownScript {
 113                                         script: *unsafe { Box::from_raw(script_nonref.take_inner()) },
 114                                 }
 115                         },
 116                 }
 117         }
 118         #[allow(unused)]
 119         pub(crate) fn into_native(self) -> nativeAPIError {
 120                 match self {
 121                         APIError::APIMisuseError {mut err, } => {
 122                                 nativeAPIError::APIMisuseError {
 123                                         err: err.into_string(),
 124                                 }
 125                         },
 126                         APIError::FeeRateTooHigh {mut err, mut feerate, } => {
 127                                 nativeAPIError::FeeRateTooHigh {
 128                                         err: err.into_string(),
 129                                         feerate: feerate,
 130                                 }
 131                         },
 132                         APIError::InvalidRoute {mut err, } => {
 133                                 nativeAPIError::InvalidRoute {
 134                                         err: err.into_string(),
 135                                 }
 136                         },
 137                         APIError::ChannelUnavailable {mut err, } => {
 138                                 nativeAPIError::ChannelUnavailable {
 139                                         err: err.into_string(),
 140                                 }
 141                         },
 142                         APIError::MonitorUpdateInProgress => nativeAPIError::MonitorUpdateInProgress,
 143                         APIError::IncompatibleShutdownScript {mut script, } => {
 144                                 nativeAPIError::IncompatibleShutdownScript {
 145                                         script: *unsafe { Box::from_raw(script.take_inner()) },
 146                                 }
 147                         },
 148                 }
 149         }
 150         #[allow(unused)]
 151         pub(crate) fn from_native(native: &nativeAPIError) -> Self {
 152                 match native {
 153                         nativeAPIError::APIMisuseError {ref err, } => {
 154                                 let mut err_nonref = Clone::clone(err);
 155                                 APIError::APIMisuseError {
 156                                         err: err_nonref.into(),
 157                                 }
 158                         },
 159                         nativeAPIError::FeeRateTooHigh {ref err, ref feerate, } => {
 160                                 let mut err_nonref = Clone::clone(err);
 161                                 let mut feerate_nonref = Clone::clone(feerate);
 162                                 APIError::FeeRateTooHigh {
 163                                         err: err_nonref.into(),
 164                                         feerate: feerate_nonref,
 165                                 }
 166                         },
 167                         nativeAPIError::InvalidRoute {ref err, } => {
 168                                 let mut err_nonref = Clone::clone(err);
 169                                 APIError::InvalidRoute {
 170                                         err: err_nonref.into(),
 171                                 }
 172                         },
 173                         nativeAPIError::ChannelUnavailable {ref err, } => {
 174                                 let mut err_nonref = Clone::clone(err);
 175                                 APIError::ChannelUnavailable {
 176                                         err: err_nonref.into(),
 177                                 }
 178                         },
 179                         nativeAPIError::MonitorUpdateInProgress => APIError::MonitorUpdateInProgress,
 180                         nativeAPIError::IncompatibleShutdownScript {ref script, } => {
 181                                 let mut script_nonref = Clone::clone(script);
 182                                 APIError::IncompatibleShutdownScript {
 183                                         script: crate::lightning::ln::script::ShutdownScript { inner: ObjOps::heap_alloc(script_nonref), is_owned: true },
 184                                 }
 185                         },
 186                 }
 187         }
 188         #[allow(unused)]
 189         pub(crate) fn native_into(native: nativeAPIError) -> Self {
 190                 match native {
 191                         nativeAPIError::APIMisuseError {mut err, } => {
 192                                 APIError::APIMisuseError {
 193                                         err: err.into(),
 194                                 }
 195                         },
 196                         nativeAPIError::FeeRateTooHigh {mut err, mut feerate, } => {
 197                                 APIError::FeeRateTooHigh {
 198                                         err: err.into(),
 199                                         feerate: feerate,
 200                                 }
 201                         },
 202                         nativeAPIError::InvalidRoute {mut err, } => {
 203                                 APIError::InvalidRoute {
 204                                         err: err.into(),
 205                                 }
 206                         },
 207                         nativeAPIError::ChannelUnavailable {mut err, } => {
 208                                 APIError::ChannelUnavailable {
 209                                         err: err.into(),
 210                                 }
 211                         },
 212                         nativeAPIError::MonitorUpdateInProgress => APIError::MonitorUpdateInProgress,
 213                         nativeAPIError::IncompatibleShutdownScript {mut script, } => {
 214                                 APIError::IncompatibleShutdownScript {
 215                                         script: crate::lightning::ln::script::ShutdownScript { inner: ObjOps::heap_alloc(script), is_owned: true },
 216                                 }
 217                         },
 218                 }
 219         }
 220 }
 221 /// Frees any resources used by the APIError
 222 #[no_mangle]
 223 pub extern "C" fn APIError_free(this_ptr: APIError) { }
 224 /// Creates a copy of the APIError
 225 #[no_mangle]
 226 pub extern "C" fn APIError_clone(orig: &APIError) -> APIError {
 227         orig.clone()
 228 }
 229 #[allow(unused)]
 230 /// Used only if an object of this type is returned as a trait impl by a method
 231 pub(crate) extern "C" fn APIError_clone_void(this_ptr: *const c_void) -> *mut c_void {
 232         Box::into_raw(Box::new(unsafe { (*(this_ptr as *const APIError)).clone() })) as *mut c_void
 233 }
 234 #[allow(unused)]
 235 /// Used only if an object of this type is returned as a trait impl by a method
 236 pub(crate) extern "C" fn APIError_free_void(this_ptr: *mut c_void) {
 237         let _ = unsafe { Box::from_raw(this_ptr as *mut APIError) };
 238 }
 239 #[no_mangle]
 240 /// Utility method to constructs a new APIMisuseError-variant APIError
 241 pub extern "C" fn APIError_apimisuse_error(err: crate::c_types::Str) -> APIError {
 242         APIError::APIMisuseError {
 243                 err,
 244         }
 245 }
 246 #[no_mangle]
 247 /// Utility method to constructs a new FeeRateTooHigh-variant APIError
 248 pub extern "C" fn APIError_fee_rate_too_high(err: crate::c_types::Str, feerate: u32) -> APIError {
 249         APIError::FeeRateTooHigh {
 250                 err,
 251                 feerate,
 252         }
 253 }
 254 #[no_mangle]
 255 /// Utility method to constructs a new InvalidRoute-variant APIError
 256 pub extern "C" fn APIError_invalid_route(err: crate::c_types::Str) -> APIError {
 257         APIError::InvalidRoute {
 258                 err,
 259         }
 260 }
 261 #[no_mangle]
 262 /// Utility method to constructs a new ChannelUnavailable-variant APIError
 263 pub extern "C" fn APIError_channel_unavailable(err: crate::c_types::Str) -> APIError {
 264         APIError::ChannelUnavailable {
 265                 err,
 266         }
 267 }
 268 #[no_mangle]
 269 /// Utility method to constructs a new MonitorUpdateInProgress-variant APIError
 270 pub extern "C" fn APIError_monitor_update_in_progress() -> APIError {
 271         APIError::MonitorUpdateInProgress}
 272 #[no_mangle]
 273 /// Utility method to constructs a new IncompatibleShutdownScript-variant APIError
 274 pub extern "C" fn APIError_incompatible_shutdown_script(script: crate::lightning::ln::script::ShutdownScript) -> APIError {
 275         APIError::IncompatibleShutdownScript {
 276                 script,
 277         }
 278 }
 279 /// Checks if two APIErrors contain equal inner contents.
 280 /// This ignores pointers and is_owned flags and looks at the values in fields.
 281 #[no_mangle]
 282 pub extern "C" fn APIError_eq(a: &APIError, b: &APIError) -> bool {
 283         if &a.to_native() == &b.to_native() { true } else { false }
 284 }
 285 #[no_mangle]
 286 /// Serialize the APIError object into a byte array which can be read by APIError_read
 287 pub extern "C" fn APIError_write(obj: &crate::lightning::util::errors::APIError) -> crate::c_types::derived::CVec_u8Z {
 288         crate::c_types::serialize_obj(&unsafe { &*obj }.to_native())
 289 }
 290 #[allow(unused)]
 291 pub(crate) extern "C" fn APIError_write_void(obj: *const c_void) -> crate::c_types::derived::CVec_u8Z {
 292         APIError_write(unsafe { &*(obj as *const APIError) })
 293 }
 294 #[no_mangle]
 295 /// Read a APIError from a byte array, created by APIError_write
 296 pub extern "C" fn APIError_read(ser: crate::c_types::u8slice) -> crate::c_types::derived::CResult_COption_APIErrorZDecodeErrorZ {
 297         let res: Result<Option<lightning::util::errors::APIError>, lightning::ln::msgs::DecodeError> = crate::c_types::maybe_deserialize_obj(ser);
 298         let mut local_res = match res { Ok(mut o) => crate::c_types::CResultTempl::ok( { let mut local_res_0 = if o.is_none() { crate::c_types::derived::COption_APIErrorZ::None } else { crate::c_types::derived::COption_APIErrorZ::Some( { crate::lightning::util::errors::APIError::native_into(o.unwrap()) }) }; local_res_0 }).into(), Err(mut e) => crate::c_types::CResultTempl::err( { crate::lightning::ln::msgs::DecodeError::native_into(e) }).into() };
 299         local_res
 300 }