Struct ktest::fs::MemDisk

pub struct MemDisk { /* fields omitted */ }

Implementations

impl MemDisk

pub fn new(size: usize) -> Self

Trait Implementations

impl Device for MemDisk

fn shutdown<'async_trait>(
    self
) -> Result<Pin<Box<dyn Future<Output = ()> + Send + 'async_trait>>, AllocError> where
    Self: Sized,
    Self: 'async_trait, 

The async destructor of the device.

fn attach<'life0, 'life1, 'async_trait>(
    &'life0 self,
    aname: &'life1 [u8]
) -> Result<Pin<Box<dyn Future<Output = Result<ChanId>> + Send + 'async_trait>>, AllocError> where
    Self: Sized,
    'life0: 'async_trait,
    'life1: 'async_trait,
    Self: 'async_trait, 

Return the root channel. aname is a user-specified hint.

fn open<'life0, 'life1, 'life2, 'async_trait>(
    &'life0 self,
    dir: &'life1 ChanId,
    name: &'life2 [u8],
    create_dir: Option<bool>
) -> Result<Pin<Box<dyn Future<Output = Result<Option<ChanId>>> + Send + 'async_trait>>, AllocError> where
    'life0: 'async_trait,
    'life1: 'async_trait,
    'life2: 'async_trait,
    Self: 'async_trait, 

Open a file in the directory or reopen a file.

fn close<'life0, 'async_trait>(
    &'life0 self,
    c: ChanId
) -> Result<Pin<Box<dyn Future<Output = ()> + Send + 'async_trait>>, AllocError> where
    'life0: 'async_trait,
    Self: 'async_trait, 

Close a file. The drop of channel is done by Chan::close

fn remove<'life0, 'life1, 'async_trait>(
    &'life0 self,
    c: &'life1 ChanId
) -> Result<Pin<Box<dyn Future<Output = Result<bool>> + Send + 'async_trait>>, AllocError> where
    'life0: 'async_trait,
    'life1: 'async_trait,
    Self: 'async_trait, 

Remove a file by hint such that the server won’t remove the file until all clients have closed it. Can only remove normal file or empty directory. May not atomic since having to truncate the file first.

fn stat<'life0, 'life1, 'async_trait>(
    &'life0 self,
    c: &'life1 ChanId
) -> Result<Pin<Box<dyn Future<Output = Result<Dirent>> + Send + 'async_trait>>, AllocError> where
    'life0: 'async_trait,
    'life1: 'async_trait,
    Self: 'async_trait, 

Inquires about the file attribute identified by a channel.

fn wstat<'life0, 'life1, 'life2, 'async_trait>(
    &'life0 self,
    c: &'life1 ChanId,
    dirent: &'life2 Dirent
) -> Result<Pin<Box<dyn Future<Output = Result<()>> + Send + 'async_trait>>, AllocError> where
    'life0: 'async_trait,
    'life1: 'async_trait,
    'life2: 'async_trait,
    Self: 'async_trait, 

Change the file attribute identified by a channel. Should be atomic.

fn read<'life0, 'life1, 'life2, 'async_trait>(
    &'life0 self,
    c: &'life1 ChanId,
    buf: &'life2 mut [u8],
    off: usize
) -> Result<Pin<Box<dyn Future<Output = Result<usize>> + Send + 'async_trait>>, AllocError> where
    'life0: 'async_trait,
    'life1: 'async_trait,
    'life2: 'async_trait,
    Self: 'async_trait, 

Read data from a channel by offset and store to buffer.

fn write<'life0, 'life1, 'life2, 'async_trait>(
    &'life0 self,
    c: &'life1 ChanId,
    buf: &'life2 [u8],
    off: usize
) -> Result<Pin<Box<dyn Future<Output = Result<usize>> + Send + 'async_trait>>, AllocError> where
    'life0: 'async_trait,
    'life1: 'async_trait,
    'life2: 'async_trait,
    Self: 'async_trait, 

Write the data in buffer to a channel starting by specific offset. Directories are not allowed to be written.

fn truncate<'life0, 'life1, 'async_trait>(
    &'life0 self,
    c: &'life1 ChanId,
    size: usize
) -> Result<Pin<Box<dyn Future<Output = Result<usize>> + Send + 'async_trait>>, AllocError> where
    'life0: 'async_trait,
    'life1: 'async_trait,
    Self: 'async_trait, 

Reduce the size of a file.