hopr_transport_session/
errors.rs

1use thiserror::Error;
2
3/// Enumeration of errors thrown from this library.
4#[derive(Error, Debug)]
5pub enum TransportSessionError {
6    #[error("connection timed out")]
7    Timeout,
8
9    #[error("incorrect data size")]
10    PayloadSize,
11
12    #[error("invalid peer id")]
13    PeerId,
14
15    #[error("impossible transport path")]
16    Path,
17
18    #[error("no surb available for sending reply data")]
19    OutOfSurbs,
20
21    #[error("unparseable session id")]
22    InvalidSessionId,
23
24    #[error("the other party rejected session initiation with error: {0}")]
25    Rejected(hopr_protocol_start::StartErrorReason),
26
27    #[error("received data for an unregistered session")]
28    UnknownData,
29
30    #[error("packet sending error: {0}")]
31    PacketSendingError(String),
32
33    #[error(transparent)]
34    StartProtocolError(#[from] hopr_protocol_start::errors::StartProtocolError),
35
36    #[error(transparent)]
37    SessionProtocolError(#[from] hopr_protocol_session::errors::SessionError),
38
39    #[error(transparent)]
40    Manager(#[from] SessionManagerError),
41
42    #[error(transparent)]
43    Network(#[from] hopr_network_types::errors::NetworkTypeError),
44
45    #[error("session is closed")]
46    Closed,
47}
48
49impl From<TransportSessionError> for std::io::Error {
50    fn from(error: TransportSessionError) -> Self {
51        std::io::Error::other(error)
52    }
53}
54
55#[derive(Error, Debug)]
56pub enum SessionManagerError {
57    #[error("manager is not started")]
58    NotStarted,
59    #[error("manager is already started")]
60    AlreadyStarted,
61    #[error("all challenge slots are occupied")]
62    NoChallengeSlots,
63    #[error("session with the given id does not exist")]
64    NonExistingSession,
65    #[error("number of sessions exceeds the maximum allowed")]
66    TooManySessions,
67    #[error("loopback sessions are not allowed")]
68    Loopback,
69    #[error("non-specific session manager error: {0}")]
70    Other(String),
71}
72
73pub type Result<T> = std::result::Result<T, TransportSessionError>;
hopr_transport_session/errors.rs

hopr_transport_session/
errors.rs
