Trait WasiFile

pub trait WasiFile: WasiNode {
    // Required methods
    fn fd_read(&mut self, bufs: &mut [IoSliceMut<'_>]) -> Result<usize, Errno>;
    fn fd_pread(
        &mut self,
        bufs: &mut [IoSliceMut<'_>],
        offset: __wasi_filesize_t,
    ) -> Result<usize, Errno>;
    fn fd_write(&mut self, bufs: &[IoSlice<'_>]) -> Result<usize, Errno>;
    fn fd_pwrite(
        &mut self,
        bufs: &[IoSlice<'_>],
        offset: __wasi_filesize_t,
    ) -> Result<usize, Errno>;
    fn fd_seek(
        &mut self,
        offset: __wasi_filedelta_t,
        whence: Type,
    ) -> Result<__wasi_filesize_t, Errno>;
    fn fd_tell(&mut self) -> Result<__wasi_filesize_t, Errno>;

    // Provided methods
    fn fd_advise(
        &mut self,
        offset: __wasi_filesize_t,
        len: __wasi_filesize_t,
        advice: Advice,
    ) -> Result<(), Errno> { ... }
    fn fd_allocate(
        &mut self,
        offset: __wasi_filesize_t,
        len: __wasi_filesize_t,
    ) -> Result<(), Errno> { ... }
    fn fd_datasync(&mut self) -> Result<(), Errno> { ... }
    fn fd_sync(&mut self) -> Result<(), Errno> { ... }
}

Required Methods

fn fd_read(&mut self, bufs: &mut [IoSliceMut<'_>]) -> Result<usize, Errno>

fn fd_pread( &mut self, bufs: &mut [IoSliceMut<'_>], offset: __wasi_filesize_t, ) -> Result<usize, Errno>

fn fd_write(&mut self, bufs: &[IoSlice<'_>]) -> Result<usize, Errno>

fn fd_pwrite( &mut self, bufs: &[IoSlice<'_>], offset: __wasi_filesize_t, ) -> Result<usize, Errno>

fn fd_seek( &mut self, offset: __wasi_filedelta_t, whence: Type, ) -> Result<__wasi_filesize_t, Errno>

fn fd_tell(&mut self) -> Result<__wasi_filesize_t, Errno>

Provided Methods

fn fd_advise( &mut self, offset: __wasi_filesize_t, len: __wasi_filesize_t, advice: Advice, ) -> Result<(), Errno>

fn fd_allocate( &mut self, offset: __wasi_filesize_t, len: __wasi_filesize_t, ) -> Result<(), Errno>

fn fd_datasync(&mut self) -> Result<(), Errno>

fn fd_sync(&mut self) -> Result<(), Errno>

Implementors

impl WasiFile for MemoryFile

impl WasiFile for DiskFile

impl<R: Read> WasiFile for InPipline<R>

impl<W: Write> WasiFile for OutPipeline<W>