Struct blob_writer::BlobWriter

pub struct BlobWriter { /* private fields */ }

BlobWriter is a wrapper around the fuchsia.fxfs.BlobWriter fidl protocol. Clients will use this library to write blobs to disk.

Implementations

impl BlobWriter

pub async fn create( blob_writer_proxy: BlobWriterProxy, size: u64 ) -> Result<Self, CreateError>

Creates a BlobWriter. Exactly size bytes are expected to be written into the writer.

pub async fn write(&mut self, bytes: &[u8]) -> Result<(), WriteError>

Begins writing bytes to the server.

If bytes contains all of the remaining unwritten bytes of the blob, i.e. the sum of the lengths of the bytes slices from this and all prior calls to write is equal to the size given to create, then the returned Future will not complete until all of the writes have been acknowledged by the server and the blob can be opened for read. Otherwise, the returned Future may complete before the write of bytes has been acknowledged by the server.

Returns an error if the length of bytes exceeds the remaining available space in the blob, calculated as per size.

pub fn vmo_size(&self) -> u64

Trait Implementations

impl Debug for BlobWriter

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

Formats the value using the given formatter.