Struct virtual_fs::mem_fs::FileSystem

pub struct FileSystem { /* private fields */ }

The in-memory file system!

This FileSystem type can be cloned, it’s a light copy of the FileSystemInner (which is behind a Arc + RwLock).

Implementations

impl FileSystem

pub fn insert_ro_file( &self, path: &Path, contents: Cow<'static, [u8]> ) -> Result<()>

Inserts a readonly file into the file system that uses copy-on-write (this is required for zero-copy creation of the same file)

pub fn insert_arc_file_at( &self, target_path: PathBuf, fs: Arc<dyn FileSystem + Send + Sync>, source_path: PathBuf ) -> Result<()>

Inserts a arc file into the file system that references another file in another file system (does not copy the real data)

pub fn insert_arc_file( &self, target_path: PathBuf, fs: Arc<dyn FileSystem + Send + Sync> ) -> Result<()>

Inserts a arc file into the file system that references another file in another file system (does not copy the real data)

pub fn insert_arc_directory_at( &self, target_path: PathBuf, other: Arc<dyn FileSystem + Send + Sync>, source_path: PathBuf ) -> Result<()>

Inserts a arc directory into the file system that references another file in another file system (does not copy the real data)

pub fn insert_arc_directory( &self, target_path: PathBuf, other: Arc<dyn FileSystem + Send + Sync> ) -> Result<()>

Inserts a arc directory into the file system that references another file in another file system (does not copy the real data)

pub fn insert_device_file( &self, path: PathBuf, file: Box<dyn VirtualFile + Send + Sync> ) -> Result<()>

Inserts a arc file into the file system that references another file in another file system (does not copy the real data)

impl FileSystem

pub fn set_memory_limiter(&self, limiter: DynFsMemoryLimiter)

pub fn new_open_options_ext(&self) -> &FileSystem

pub fn canonicalize_unchecked(&self, path: &Path) -> Result<PathBuf>

Canonicalize a path without validating that it actually exists.

pub fn mount_directory_entries( &self, target_path: &Path, other: &Arc<dyn FileSystem + Send + Sync>, source_path: &Path ) -> Result<()>

Merge all items from a given source path (directory) of a different file system into this file system.

Individual files and directories of the given path are mounted.

This function is not recursive, only the items in the source_path are mounted.

See Self::union for mounting all inodes recursively.

pub fn union(&self, other: &Arc<dyn FileSystem + Send + Sync>)

pub fn mount( &self, target_path: PathBuf, other: &Arc<dyn FileSystem + Send + Sync>, source_path: PathBuf ) -> Result<()>

Trait Implementations

impl Clone for FileSystem

fn clone(&self) -> FileSystem

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for FileSystem

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

Formats the value using the given formatter.

impl Default for FileSystem

fn default() -> FileSystem

Returns the “default value” for a type.

impl FileOpener for FileSystem

fn open( &self, path: &Path, conf: &OpenOptionsConfig ) -> Result<Box<dyn VirtualFile + Send + Sync + 'static>>

impl FileSystem for FileSystem

fn read_dir(&self, path: &Path) -> Result<ReadDir>

fn create_dir(&self, path: &Path) -> Result<()>

fn remove_dir(&self, path: &Path) -> Result<()>

fn rename<'a>( &'a self, from: &'a Path, to: &'a Path ) -> BoxFuture<'a, Result<()>>

fn metadata(&self, path: &Path) -> Result<Metadata>

fn remove_file(&self, path: &Path) -> Result<()>

fn new_open_options(&self) -> OpenOptions<'_>

fn symlink_metadata(&self, path: &Path) -> Result<Metadata>

This method gets metadata without following symlinks in the path. Currently identical to metadata because symlinks aren’t implemented yet.