Struct tvix_castore::blobservice::memory::MemoryBlobWriter

pub struct MemoryBlobWriter {
    db: Arc<RwLock<HashMap<B3Digest, Vec<u8>>>>,
    writers: Option<(Vec<u8>, Hasher)>,
    digest: Option<B3Digest>,
}

Fields

db: Arc<RwLock<HashMap<B3Digest, Vec<u8>>>>

writers: Option<(Vec<u8>, Hasher)>

Contains the buffer Vec and hasher, or None if already closed

digest: Option<B3Digest>

The digest that has been returned, if we successfully closed.

Implementations

impl MemoryBlobWriter

fn new(db: Arc<RwLock<HashMap<B3Digest, Vec<u8>>>>) -> Self

Trait Implementations

impl AsyncWrite for MemoryBlobWriter

fn poll_write( self: Pin<&mut Self>, _cx: &mut Context<'_>, b: &[u8], ) -> Poll<Result<usize, Error>>

Attempt to write bytes from buf into the object.

fn poll_flush( self: Pin<&mut Self>, _cx: &mut Context<'_>, ) -> Poll<Result<(), Error>>

Attempts to flush the object, ensuring that any buffered data reach their destination.

fn poll_shutdown( self: Pin<&mut Self>, _cx: &mut Context<'_>, ) -> Poll<Result<(), Error>>

Initiates or attempts to shut down this writer, returning success when the I/O connection has completely shut down.

fn poll_write_vectored( self: Pin<&mut Self>, cx: &mut Context<'_>, bufs: &[IoSlice<'_>], ) -> Poll<Result<usize, Error>>

Like poll_write, except that it writes from a slice of buffers.

fn is_write_vectored(&self) -> bool

Determines if this writer has an efficient poll_write_vectored implementation.

impl BlobWriter for MemoryBlobWriter

fn close<'life0, 'async_trait>( &'life0 mut self, ) -> Pin<Box<dyn Future<Output = Result<B3Digest>> + Send + 'async_trait>>

where Self: 'async_trait, 'life0: 'async_trait,

Signal there’s no more data to be written, and return the digest of the contents written.