ironwal 0.6.3

A high performance, high durability, deterministic Write-Ahead Log (WAL) for reliable systems of record.
Documentation 
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use std::io;
use thiserror::Error;

pub type Result<T> = std::result::Result<T, Error>;

#[derive(Error, Debug)]
pub enum Error {
  #[error("I/O Error: {0}")]
  Io(#[from] io::Error),

  #[error("Data Corruption: {0}")]
  Corruption(String),

  #[error("CRC32 Checksum Mismatch: expected {expected:#x}, got {actual:#x} at offset {offset}")]
  CrcMismatch {
    expected: u32,
    actual: u32,
    offset: u64,
  },

  #[error("Configuration Error: {0}")]
  Config(String),

  #[error("Segment not found for ID: {0}")]
  SegmentNotFound(u64),

  #[error("Stream not found: {0}")]
  StreamNotFound(String),

  #[error("Invalid filename format in WAL directory: {0}")]
  InvalidFilename(String),

  #[error("Serialization Error: {0}")]
  Serialization(String),
  
  #[cfg(feature = "sharded")]
  #[error("Checkpoint not found: {0}")]
  CheckpointNotFound(String),

  #[cfg(feature = "sharded")]
  #[error("Checkpoint corrupted at offset {offset}: {reason}")]
  CheckpointCorrupted { offset: u64, reason: String },

  #[cfg(feature = "sharded")]
  #[error("Shard count mismatch: expected {expected}, found {found}")]
  ShardCountMismatch { expected: u16, found: u16 },

  #[cfg(feature = "sharded")]
  #[error("Invalid checkpoint ID: {0}")]
  InvalidCheckpointId(String),

  #[cfg(feature = "sharded")]
  #[error("No checkpoints available")]
  NoCheckpoints,
}