rvm_types/
recovery.rs

1//! Recovery and checkpoint types.
2
3use crate::PartitionId;
4
5/// Classification of failure severity.
6#[derive(Debug, Clone, Copy, PartialEq, Eq, PartialOrd, Ord)]
7#[repr(u8)]
8pub enum FailureClass {
9    /// Transient: retry is likely to succeed.
10    Transient = 0,
11    /// Recoverable: checkpoint restore can fix.
12    Recoverable = 1,
13    /// Permanent: partition must be destroyed.
14    Permanent = 2,
15    /// Catastrophic: system-wide recovery needed.
16    Catastrophic = 3,
17}
18
19/// A recovery checkpoint (state snapshot).
20#[derive(Debug, Clone, Copy)]
21pub struct RecoveryCheckpoint {
22    /// Partition this checkpoint belongs to.
23    pub partition: PartitionId,
24    /// Sequence number of the witness record at checkpoint time.
25    pub witness_sequence: u64,
26    /// Timestamp when the checkpoint was taken.
27    pub timestamp_ns: u64,
28    /// Epoch at checkpoint time.
29    pub epoch: u32,
30}
31
32/// A receipt for reconstructing a hibernated partition.
33#[derive(Debug, Clone, Copy)]
34pub struct ReconstructionReceipt {
35    /// Original partition ID.
36    pub original_id: PartitionId,
37    /// Checkpoint from which to reconstruct.
38    pub checkpoint: RecoveryCheckpoint,
39    /// Whether the partition was hibernated (vs destroyed).
40    pub was_hibernated: bool,
41}
rvm_types/recovery.rs

rvm_types/
recovery.rs
