quic_reverse_control/error.rs
1// Copyright 2024-2026 Farlight Networks, LLC
2//
3// Licensed under the Apache License, Version 2.0 (the "License");
4// you may not use this file except in compliance with the License.
5// You may obtain a copy of the License at
6//
7// http://www.apache.org/licenses/LICENSE-2.0
8//
9// Unless required by applicable law or agreed to in writing, software
10// distributed under the License is distributed on an "AS IS" BASIS,
11// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12// See the License for the specific language governing permissions and
13// limitations under the License.
14
15//! Error types for the control protocol.
16
17use thiserror::Error;
18
19/// Errors that can occur during control protocol operations.
20#[derive(Debug, Error)]
21pub enum ControlError {
22 /// Frame exceeds the maximum allowed size.
23 #[error("frame size {size} exceeds maximum {max}", max = crate::MAX_FRAME_SIZE)]
24 FrameTooLarge {
25 /// The actual frame size.
26 size: usize,
27 },
28
29 /// Unexpected end of input while reading a frame.
30 #[error("unexpected end of input: expected {expected} bytes, got {actual}")]
31 UnexpectedEof {
32 /// Expected number of bytes.
33 expected: usize,
34 /// Actual number of bytes available.
35 actual: usize,
36 },
37
38 /// Codec error during serialization or deserialization.
39 #[error("codec error: {0}")]
40 Codec(#[from] crate::CodecError),
41
42 /// I/O error during read or write operations.
43 #[error("I/O error: {0}")]
44 Io(#[from] std::io::Error),
45
46 /// Invalid protocol message.
47 #[error("invalid message: {0}")]
48 InvalidMessage(String),
49
50 /// Protocol version mismatch.
51 #[error("unsupported protocol version: {0}")]
52 UnsupportedVersion(u16),
53}