Struct grebedb::vfs::MemoryVfs

pub struct MemoryVfs { /* fields omitted */ }

A file system that is stored temporarily to memory.

Implementations

impl MemoryVfs

pub fn new() -> Self

Create a in-memory file system.

Trait Implementations

impl Clone for MemoryVfs

fn clone(&self) -> MemoryVfs

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for MemoryVfs

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for MemoryVfs

fn default() -> Self

Returns the “default value” for a type.

impl Vfs for MemoryVfs

fn lock(&mut self, _path: &str) -> Result<(), Error>

Lock the file preventing other processes from accessing it.

fn unlock(&mut self, _path: &str) -> Result<(), Error>

Unlock the file.

fn read(&self, path: &str) -> Result<Vec<u8>, Error>

Read the contents of a file to a vector.

fn write(
    &mut self,
    path: &str,
    data: &[u8],
    _sync_option: VfsSyncOption
) -> Result<(), Error>

Write the contents to a file.

fn sync_file(
    &mut self,
    _path: &str,
    _sync_option: VfsSyncOption
) -> Result<(), Error>

Flush buffered data of a file to persistent storage.

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

Delete a file.

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

Return a vector of filenames in a directory.

fn create_dir(&mut self, path: &str) -> Result<(), Error>

Create a directory at the given path.

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

Remove an empty directory.

fn rename_file(&mut self, old_path: &str, new_path: &str) -> Result<(), Error>

Rename a file.

fn is_dir(&self, path: &str) -> Result<bool, Error>

Return whether the path is a directory.

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

Return whether the path exists.

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

Create directories for all components of the path if they do not exist.

fn remove_empty_dir_all(&mut self, path: &str) -> Result<(), Error>

Remove empty directories in the path if they exist.