Struct SimFs 

pub struct SimFs { /* private fields */ }

Deterministic in-memory filesystem with fault injection.

Each operation checks the configured fault rules. If a rule matches, the simulation RNG decides (based on probability) whether to inject the fault.

use vortex_fs::{SimFs, VortexFs};

let mut fs = SimFs::new(42);
fs.create_dir_all("/data/logs").unwrap();
fs.write_file("/data/logs/app.log", b"hello").unwrap();
assert!(fs.exists("/data/logs/app.log"));
assert_eq!(fs.read_file("/data/logs/app.log").unwrap(), b"hello");

Implementations

impl SimFs

pub fn new(seed: u64) -> Self

Create a new in-memory filesystem with the given seed.

pub fn with_faults(seed: u64, config: FsFaultConfig) -> Self

Create with fault injection configuration.

pub fn set_fault_config(&mut self, config: FsFaultConfig)

Set the fault configuration.

pub fn total_bytes_written(&self) -> u64

Get total bytes written so far.

pub fn entry_count(&self) -> usize

Number of entries (files + directories).

Trait Implementations

impl VortexFs for SimFs

fn read_file(&self, path: &str) -> VortexFsResult<Vec<u8>>

Read the entire contents of a file.

fn write_file(&mut self, path: &str, data: &[u8]) -> VortexFsResult<()>

Write data to a file (creates or overwrites).

fn append_file(&mut self, path: &str, data: &[u8]) -> VortexFsResult<()>

Append data to a file (creates if not exists).

fn remove_file(&mut self, path: &str) -> VortexFsResult<()>

Remove a file.

fn rename(&mut self, from: &str, to: &str) -> VortexFsResult<()>

Rename a file or directory.

fn create_dir_all(&mut self, path: &str) -> VortexFsResult<()>

Create a directory (and all parent directories).

fn remove_dir(&mut self, path: &str) -> VortexFsResult<()>

Remove an empty directory.

fn read_dir(&self, path: &str) -> VortexFsResult<Vec<String>>

List the entries in a directory.

fn metadata(&self, path: &str) -> VortexFsResult<FileMetadata>

Get metadata about a file or directory.

fn exists(&self, path: &str) -> bool

Check if a path exists.

fn fsync(&mut self, path: &str) -> VortexFsResult<()>

Flush / fsync a file (no-op for in-memory, real sync for production).