3320c24afa
Add CRC32C checksums to WAL record format (v2), implement crash recovery with automatic truncation of corrupt records, add feature-gated group commit buffer for batched fsync under concurrent load, and implement log rotation via segment files with global offset addressing. Key changes: - Record format v2: [len:u32][crc32c:u32][blake3:32][payload:N] - recover_file() scans and truncates corrupt tail records - GroupCommitBuffer batches fsync via MPSC channel (tokio feature gate) - SegmentManager with binary search resolution and cursor-based cleanup - Journal::read() auto-refreshes segments on miss for writer/reader split - Split recovery.rs and key_codec.rs into directory modules for 500-line max Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
29 lines
834 B
Rust
29 lines
834 B
Rust
use thiserror::Error;
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/// Result type for storage operations.
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pub type Result<T> = std::result::Result<T, StorageError>;
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/// Errors that can occur during storage operations.
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#[derive(Error, Debug)]
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pub enum StorageError {
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/// IO error interacting with the storage backend.
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#[error("Storage IO error: {0}")]
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Io(#[from] std::io::Error),
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/// Error from the underlying storage backend (fjall, redb, etc.).
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#[error("Backend error: {0}")]
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Backend(String),
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/// Serialization/Deserialization error.
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#[error("Serialization error: {0}")]
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Serialization(String),
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/// Key not found in storage.
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#[error("Key not found: {0}")]
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NotFound(String),
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/// Input validation error (e.g., dimension mismatch, invalid values).
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#[error("Input validation error: {0}")]
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InputValidation(String),
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}
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