tari-project / tari / 17033178607

// Copyright 2020, The Tari Project

//

// Redistribution and use in source and binary forms, with or without modification, are permitted provided that the

// following conditions are met:

//

// 1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following

// disclaimer.

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// 2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the

// following disclaimer in the documentation and/or other materials provided with the distribution.

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// INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE

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use std::io;

use thiserror::Error;

/// Error type for protocol module.

#[derive(Debug, Error)]

pub enum ProtocolError {

    #[error("IO error: {0}")]

    IoError(#[from] io::Error),

    #[error("Invalid flag: {0}")]

    InvalidFlag(String),

    #[error("The ProtocolId was longer than {}", u8::MAX)]

    ProtocolIdTooLong,

    #[error("Protocol negotiation failed because the peer did not accept any of the given protocols: {protocols}")]

    ProtocolOutboundNegotiationFailed { protocols: String },

    #[error("Protocol negotiation failed because the peer did not offer any protocols supported by this node")]

    ProtocolInboundNegotiationFailed,

    #[error("Optimistic protocol negotiation failed because the peer did not offer a protocol supported by this node")]

    ProtocolOptimisticNegotiationFailed,

    #[error("Protocol negotiation terminated by peer")]

    ProtocolNegotiationTerminatedByPeer,

    #[error("Protocol was not registered")]

    ProtocolNotRegistered,

    #[error("Failed to send notification because notification sender disconnected")]

    NotificationSenderDisconnected,

    #[error("Expected to ready bytes, that are not in the buffer")]

    ExpectedReadyBytes,

}

impl ProtocolError {

            ProtocolError::IoError(_) |

            ProtocolError::ProtocolNegotiationTerminatedByPeer |

            ProtocolError::ProtocolOutboundNegotiationFailed { .. } |

            ProtocolError::ProtocolNotRegistered |

            ProtocolError::ProtocolInboundNegotiationFailed |

            ProtocolError::ProtocolOptimisticNegotiationFailed |

            ProtocolError::ExpectedReadyBytes |

        }

}