Enum AdaptiveStorageWriter 

pub enum AdaptiveStorageWriter<F, V>
where
    F: StorageWriter,
    V: StorageWriter,
{
    Bounded(BoundedStorageWriter<F>),
    Fixed(F),
    Variable(V),
}

Writer that adaptively uses either fixed-length or variable-length storage

The storage type used depends on the stream characteristics:

• Bounded: For infinite streams, using fixed-length storage with size limits
• Fixed: For finite streams smaller than or equal to the buffer size
• Variable: For finite streams larger than the buffer size

Variants

Bounded(BoundedStorageWriter<F>)

Used for infinite streams, wrapping the fixed-length storage in a bounded buffer

Fixed(F)

Used for finite streams smaller than or equal to the buffer size

Variable(V)

Used for finite streams larger than the buffer size

Trait Implementations

impl<F, V> Debug for AdaptiveStorageWriter<F, V>

where F: StorageWriter + Debug, V: StorageWriter + Debug,

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

Formats the value using the given formatter.

impl<F, V> Seek for AdaptiveStorageWriter<F, V>

where F: StorageWriter, V: StorageWriter,

fn seek(&mut self, pos: SeekFrom) -> Result<u64>

Seek to an offset, in bytes, in a stream.

fn rewind(&mut self) -> Result<(), Error>

Rewind to the beginning of a stream.

fn stream_len(&mut self) -> Result<u64, Error>

🔬This is a nightly-only experimental API. (seek_stream_len)

Returns the length of this stream (in bytes).

fn stream_position(&mut self) -> Result<u64, Error>

Returns the current seek position from the start of the stream.

fn seek_relative(&mut self, offset: i64) -> Result<(), Error>

Seeks relative to the current position.

impl<F, V> Write for AdaptiveStorageWriter<F, V>

where F: StorageWriter, V: StorageWriter,

fn write(&mut self, buf: &[u8]) -> Result<usize>

Writes a buffer into this writer, returning how many bytes were written.

fn flush(&mut self) -> Result<()>

Flushes this output stream, ensuring that all intermediately buffered contents reach their destination.

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

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

fn is_write_vectored(&self) -> bool

🔬This is a nightly-only experimental API. (can_vector)

Determines if this Writer has an efficient write_vectored implementation.

fn write_all(&mut self, buf: &[u8]) -> Result<(), Error>

Attempts to write an entire buffer into this writer.

fn write_all_vectored(&mut self, bufs: &mut [IoSlice<'_>]) -> Result<(), Error>

🔬This is a nightly-only experimental API. (write_all_vectored)

Attempts to write multiple buffers into this writer.

fn write_fmt(&mut self, args: Arguments<'_>) -> Result<(), Error>

Writes a formatted string into this writer, returning any error encountered.

fn by_ref(&mut self) -> &mut Self

where Self: Sized,

Creates a “by reference” adapter for this instance of Write.