lighty_launch/instance/
errors.rs

1use std::fmt;
2
3/// Result type for instance operations
4pub type InstanceResult<T> = Result<T, InstanceError>;
5
6/// Errors that can occur during instance management
7#[derive(Debug)]
8pub enum InstanceError {
9    NotFound { pid: u32 },
10
11    StillRunning {
12        instance_name: String,
13        pids: Vec<u32>,
14    },
15
16    Io(std::io::Error),
17
18    DuplicatePid {
19        pid: u32,
20        existing_instance: String,
21    },
22}
23
24impl fmt::Display for InstanceError {
25    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
26        match self {
27            InstanceError::NotFound { pid } => {
28                write!(f, "Instance with PID {} not found", pid)
29            }
30            InstanceError::StillRunning {
31                instance_name,
32                pids,
33            } => {
34                write!(
35                    f,
36                    "Cannot delete instance '{}': still running with PIDs {:?}",
37                    instance_name, pids
38                )
39            }
40            InstanceError::Io(err) => write!(f, "I/O error: {}", err),
41            InstanceError::DuplicatePid { pid, existing_instance } => write!(
42                f,
43                "Cannot register instance: PID {} already tracked by '{}'",
44                pid, existing_instance
45            ),
46        }
47    }
48}
49
50impl std::error::Error for InstanceError {
51    fn source(&self) -> Option<&(dyn std::error::Error + 'static)> {
52        match self {
53            InstanceError::Io(err) => Some(err),
54            _ => None,
55        }
56    }
57}
58
59impl From<std::io::Error> for InstanceError {
60    fn from(err: std::io::Error) -> Self {
61        InstanceError::Io(err)
62    }
63}
lighty_launch/instance/errors.rs

lighty_launch/instance/
errors.rs
