Struct RandomAccessDisk 

pub struct RandomAccessDisk { /* private fields */ }

Main constructor.

Implementations

impl RandomAccessDisk

pub async fn open( filename: impl AsRef<Path>, ) -> Result<RandomAccessDisk, RandomAccessError>

Create a new (auto-sync) instance to storage at filename.

pub fn builder(filename: impl AsRef<Path>) -> Builder

Initialize a builder with storage at filename.

Trait Implementations

impl Clone for RandomAccessDisk

fn clone(&self) -> RandomAccessDisk

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for RandomAccessDisk

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

Formats the value using the given formatter.

impl RandomAccess for RandomAccessDisk

fn write( &self, offset: u64, data: &[u8], ) -> BoxFuture<Result<(), RandomAccessError>>

Write bytes of data at an offset to the backend.

fn read( &self, offset: u64, length: u64, ) -> BoxFuture<Result<Vec<u8>, RandomAccessError>>

Read a sequence of bytes at an offset from the backend.

fn del( &self, offset: u64, length: u64, ) -> BoxFuture<Result<(), RandomAccessError>>

Delete a sequence of bytes of given length at an offset from the backend. This either sets the bytes in the given slice to zeroes, or if offset + length >= RandomAccess::len() is the same as truncate(offset).

fn truncate(&self, length: u64) -> BoxFuture<Result<(), RandomAccessError>>

Resize the sequence of bytes so that RandomAccess::len() is set to length. If length < RandomAccess::len(), the bytes are disregarded. If length > RandomAccess::len(), the storage is zero-padded.

fn len(&self) -> u64

Get the size of the storage in bytes.

fn sync_all(&self) -> BoxFuture<Result<(), RandomAccessError>>

Flush buffered data on the underlying storage resource.

fn is_empty(&self) -> bool

Whether the storage is empty.