Trait ffsend_api::reader::ExactLengthReader

pub trait ExactLengthReader {
    fn len(&self) -> Result<u64, Error>;

    fn is_empty(&self) -> Result<bool, Error> { ... }
}

A trait for readers, to get the exact length of a reader.

Required Methods

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

Get the exact length of the reader in bytes.

Provided Methods

fn is_empty(&self) -> Result<bool, Error>

Check whehter this extact length reader is emtpy.

Implementations on Foreign Types

impl<R: ExactLengthReader + Read> ExactLengthReader for BufReader<R>

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

Implementors

impl ExactLengthReader for EncryptedFileReader

impl ExactLengthReader for EncryptedFileWriter

impl<R: Read> ExactLengthReader for ProgressReader<R>

impl<W: Write> ExactLengthReader for ProgressWriter<W>