caco3_pty/
error.rs

1use std::error::Error;
2use std::fmt::{self, Display};
3
4#[derive(Debug)]
5pub enum AllocateError {
6    Open(std::io::Error),
7    Grant(std::io::Error),
8    Unlock(std::io::Error),
9    GetChildName(std::io::Error),
10    OpenChild(std::io::Error),
11}
12
13#[derive(Debug)]
14pub enum SpawnError {
15    DuplicateStdio(std::io::Error),
16    CreateSession(std::io::Error),
17    SetControllingTerminal(std::io::Error),
18    Spawn(std::io::Error),
19    WrapAsyncFd(std::io::Error),
20}
21
22#[derive(Debug)]
23pub struct ResizeError(pub std::io::Error);
24
25impl Error for AllocateError {}
26impl Error for SpawnError {}
27impl Error for ResizeError {}
28
29impl Display for AllocateError {
30    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
31        match self {
32            AllocateError::Open(err) => write!(f, "failed to open new pseudo terminal: {err}"),
33            AllocateError::Grant(err) => write!(
34                f,
35                "failed to grant permissions on child terminal device: {err}"
36            ),
37            AllocateError::Unlock(err) => {
38                write!(f, "failed to unlock child terminal device: {err}")
39            }
40            AllocateError::GetChildName(err) => {
41                write!(f, "failed to get name of child terminal device: {err}")
42            }
43            AllocateError::OpenChild(err) => {
44                write!(f, "failed to open child terminal device: {err}")
45            }
46        }
47    }
48}
49
50impl Display for SpawnError {
51    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
52        match self {
53            SpawnError::DuplicateStdio(err) => write!(
54                f,
55                "failed to duplicate file descriptor for standard I/O stream: {err}"
56            ),
57            SpawnError::CreateSession(err) => {
58                write!(f, "failed to create new process group: {err}")
59            }
60            SpawnError::SetControllingTerminal(err) => write!(
61                f,
62                "failed to set controlling terminal for new process group: {err}"
63            ),
64            SpawnError::Spawn(err) => write!(f, "failed to spawn child process: {err}"),
65            SpawnError::WrapAsyncFd(err) => write!(
66                f,
67                "failed to wrap pseudo terminal file descriptor for use with tokio: {err}"
68            ),
69        }
70    }
71}
72
73impl Display for ResizeError {
74    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
75        let Self(e) = self;
76        write!(f, "failed to resize terminal device: {e}")
77    }
78}
caco3_pty/error.rs

caco3_pty/
error.rs
