Struct sunrise_fs::detail::driver::fat::file::FileInterface

pub struct FileInterface {
    inner_fs: Arc<Mutex<FatFileSystem<Box<dyn StorageDevice<Error = Error> + Send>>>>,
    file_inner: File,
    mode: FileModeFlags,
}

A libfat file interface implementing FileOperations.

Fields

inner_fs: Arc<Mutex<FatFileSystem<Box<dyn StorageDevice<Error = Error> + Send>>>>

libfat filesystem interface.

file_inner: File

The libfat's directory entry of this file.

mode: FileModeFlags

File mode flags.

Implementations

impl FileInterface

pub fn new(
    inner_fs: Arc<Mutex<FatFileSystem<Box<dyn StorageDevice<Error = Error> + Send>>>>,
    file_inner: File,
    mode: FileModeFlags
) -> Self

Create a new FileInterface.

Trait Implementations

impl Debug for FileInterface

fn fmt(&self, fmt: &mut Formatter) -> Result

Formats the value using the given formatter.

impl FileOperations for FileInterface

fn read(&mut self, offset: u64, buf: &mut [u8]) -> LibUserResult<u64>

Read the content of a file at a given offset in buf.

fn write(&mut self, offset: u64, buf: &[u8]) -> LibUserResult<()>

Write the content given buf at the given offset in the file. If the file is too small to hold the data and the appendable flag is set, it will resize the file and append the data. If the file is too small to hold the data and the appendable flag isn't set, this will return a FileSystemError::NoSpaceLeft.

fn flush(&mut self) -> LibUserResult<()>

Flush any data not written on the filesystem.

fn set_len(&mut self, size: u64) -> LibUserResult<()>

Resize the file with the given size. If the file isn't open with the appendable flag, it will not be extendable and will return a FileSystemError::NoSpaceLeft.

fn get_len(&mut self) -> LibUserResult<u64>

Return the current file size.