oyster.cafe
Nothing to see here, move along
1#[must_use]
2#[non_exhaustive]
3#[derive(Debug, Clone, Copy, PartialEq, Eq)]
4#[repr(i64)]
5pub enum KernelError {
6 SlotOccupied = -1,
7 SlotEmpty = -2,
8 InvalidObject = -3,
9 InsufficientRights = -4,
10 StaleGeneration = -5,
11 PoolExhausted = -6,
12 InvalidType = -7,
13 InvalidSlot = -8,
14 InvalidAddress = -9,
15 WouldBlock = -10,
16 ResourceExhausted = -11,
17 #[allow(dead_code)]
18 NotFound = -12,
19 PermissionDenied = -13,
20 BadState = -14,
21 InvalidParameter = -15,
22 NotInitialized = -16,
23 IommuFault = -17,
24 AlreadyExists = -18,
25 DepthLimit = -19,
26 GuardMismatch = -20,
27}
28
29impl KernelError {
30 pub const fn to_errno(self) -> i64 {
31 self as i64
32 }
33}
34
35impl core::fmt::Display for KernelError {
36 fn fmt(&self, f: &mut core::fmt::Formatter<'_>) -> core::fmt::Result {
37 match self {
38 Self::SlotOccupied => write!(f, "slot occupied"),
39 Self::SlotEmpty => write!(f, "slot empty"),
40 Self::InvalidObject => write!(f, "invalid object"),
41 Self::InsufficientRights => write!(f, "insufficient rights"),
42 Self::StaleGeneration => write!(f, "stale generation"),
43 Self::PoolExhausted => write!(f, "pool exhausted"),
44 Self::InvalidType => write!(f, "invalid type"),
45 Self::InvalidSlot => write!(f, "invalid slot"),
46 Self::InvalidAddress => write!(f, "invalid address"),
47 Self::WouldBlock => write!(f, "would block"),
48 Self::ResourceExhausted => write!(f, "resource exhausted"),
49 Self::NotFound => write!(f, "not found"),
50 Self::PermissionDenied => write!(f, "permission denied"),
51 Self::BadState => write!(f, "bad state"),
52 Self::InvalidParameter => write!(f, "invalid parameter"),
53 Self::NotInitialized => write!(f, "not initialized"),
54 Self::IommuFault => write!(f, "iommu fault"),
55 Self::AlreadyExists => write!(f, "already exists"),
56 Self::DepthLimit => write!(f, "depth limit"),
57 Self::GuardMismatch => write!(f, "guard mismatch"),
58 }
59 }
60}
61
62impl From<KernelError> for i64 {
63 fn from(e: KernelError) -> Self {
64 e.to_errno()
65 }
66}