Trait FileSystem 

pub trait FileSystem {
    // Required methods
    fn sync_data(&mut self, tcf: &VfFile) -> VfResult<()>;
    fn open_impl(&mut self, request: &OpenRequest) -> VfResult<VfFile>;
    fn close_impl(&mut self, file: &VfFile) -> VfResult<()>;
    fn read_impl(&mut self, request: &ReadOp) -> VfResult<ReadResult>;
    fn write_impl(&mut self, request: WriteOpRef<'_>) -> VfResult<WriteResult>;
    fn seek_impl(&mut self, file: &VfFile, position: SeekFrom) -> VfResult<u64>;
    fn metadata_impl(&mut self, query: MetadataQuery) -> VfResult<VfAttrs>;
    fn set_attributes_impl(&mut self, update: SetAttributes) -> VfResult<()>;

    // Provided methods
    fn vstatfs_impl(
        &mut self,
        files: &[VfFile],
    ) -> VfResult<Vec<FilesystemStats>> { ... }
    fn close_deferred(&mut self, file: &VfFile) -> VfResult<()> { ... }
    fn take_notifications(&mut self) -> Vec<Box<dyn FnOnce() + Send>> { ... }
    fn capability_bits(&self) -> u64 { ... }
    fn capabilities(&self) -> Capabilities { ... }
    fn abs_path(&self, path: &Path) -> PathBuf { ... }
    fn open_path_impl(
        &mut self,
        base: VfPathBase,
        pathname: &Path,
        flags: i32,
        mode: u32,
    ) -> VfResult<VfFile> { ... }
    fn sync_all(&mut self, tcf: &VfFile) -> VfResult<()> { ... }
    fn chdir(&mut self, path: &Path) -> VfResult<()> { ... }
    fn getcwd(&self) -> PathBuf { ... }
    fn seek_raw_impl(
        &mut self,
        tcf: &VfFile,
        offset: i64,
        whence: SeekFrom,
    ) -> VfResult<i64> { ... }
    fn vf_path(&self, file: &VfFile) -> VfResult<PathBuf> { ... }
    fn open_raw_impl(
        &mut self,
        pathname: &Path,
        flags: i32,
        mode: u32,
    ) -> VfResult<VfFile> { ... }
    fn read_raw_impl(
        &mut self,
        file: &VfFile,
        offset: u64,
        length: usize,
    ) -> VfResult<Vec<u8>> { ... }
    fn write_raw_impl(
        &mut self,
        file: &VfFile,
        offset: u64,
        data: &[u8],
    ) -> VfResult<usize> { ... }
    fn read_file_impl(
        &mut self,
        file: &VfFile,
        max_bytes: usize,
    ) -> VfResult<Vec<u8>> { ... }
    fn read_into_impl(
        &mut self,
        request: &ReadOp,
        buffer: &mut [u8],
    ) -> VfResult<ReadIntoResult> { ... }
    fn vsetattrs_impl(
        &mut self,
        updates: Vec<SetAttributes>,
        follow: bool,
    ) -> VfResult<()> { ... }
}

Minimum contract for owned handles and descriptor lifecycle. This includes handle-level metadata/statistics hooks, but does not require namespace operations, directory enumeration, or native vector I/O.

Required Methods

fn sync_data(&mut self, tcf: &VfFile) -> VfResult<()>

fn open_impl(&mut self, request: &OpenRequest) -> VfResult<VfFile>

fn close_impl(&mut self, file: &VfFile) -> VfResult<()>

fn read_impl(&mut self, request: &ReadOp) -> VfResult<ReadResult>

fn write_impl(&mut self, request: WriteOpRef<'_>) -> VfResult<WriteResult>

fn seek_impl(&mut self, file: &VfFile, position: SeekFrom) -> VfResult<u64>

fn metadata_impl(&mut self, query: MetadataQuery) -> VfResult<VfAttrs>

fn set_attributes_impl(&mut self, update: SetAttributes) -> VfResult<()>

Provided Methods

fn vstatfs_impl(&mut self, files: &[VfFile]) -> VfResult<Vec<FilesystemStats>>

fn close_deferred(&mut self, file: &VfFile) -> VfResult<()>

fn take_notifications(&mut self) -> Vec<Box<dyn FnOnce() + Send>>

fn capability_bits(&self) -> u64

fn capabilities(&self) -> Capabilities

fn abs_path(&self, path: &Path) -> PathBuf

fn open_path_impl( &mut self, base: VfPathBase, pathname: &Path, flags: i32, mode: u32, ) -> VfResult<VfFile>

fn sync_all(&mut self, tcf: &VfFile) -> VfResult<()>

fn chdir(&mut self, path: &Path) -> VfResult<()>

fn getcwd(&self) -> PathBuf

fn seek_raw_impl( &mut self, tcf: &VfFile, offset: i64, whence: SeekFrom, ) -> VfResult<i64>

fn vf_path(&self, file: &VfFile) -> VfResult<PathBuf>

fn open_raw_impl( &mut self, pathname: &Path, flags: i32, mode: u32, ) -> VfResult<VfFile>

fn read_raw_impl( &mut self, file: &VfFile, offset: u64, length: usize, ) -> VfResult<Vec<u8>>

fn write_raw_impl( &mut self, file: &VfFile, offset: u64, data: &[u8], ) -> VfResult<usize>

fn read_file_impl( &mut self, file: &VfFile, max_bytes: usize, ) -> VfResult<Vec<u8>>

fn read_into_impl( &mut self, request: &ReadOp, buffer: &mut [u8], ) -> VfResult<ReadIntoResult>

fn vsetattrs_impl( &mut self, updates: Vec<SetAttributes>, follow: bool, ) -> VfResult<()>

Dyn Compatibility

This trait is dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementors