Struct std::io::BufReaderUnstable

pub struct BufReader<R> {
    // some fields omitted
}

Wraps a Read and buffers input from it

It can be excessively inefficient to work directly with a Read instance. For example, every call to read on TcpStream results in a system call. A BufReader performs large, infrequent reads on the underlying Read and maintains an in-memory buffer of the results.

Methods

impl<R: Read> BufReader<R>

fn new(inner: R) -> BufReader<R>

Creates a new BufReader with a default buffer capacity

fn with_capacity(cap: usize, inner: R) -> BufReader<R>

Creates a new BufReader with the specified buffer capacity

fn get_ref<'a>(&self) -> &R

Gets a reference to the underlying reader.

fn get_mut(&mut self) -> &mut R

Gets a mutable reference to the underlying reader.

Warning

It is inadvisable to directly read from the underlying reader.

fn into_inner(self) -> R

Unwraps this BufReader, returning the underlying reader.

Note that any leftover data in the internal buffer is lost.

Trait Implementations

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

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

fn read_to_end(&mut self, buf: &mut Vec<u8>) -> Result<()>

fn read_to_string(&mut self, buf: &mut String) -> Result<()>

impl<R: Read> BufRead for BufReader<R>

fn fill_buf(&mut self) -> Result<&[u8]>

fn consume(&mut self, amt: usize)

fn read_until(&mut self, byte: u8, buf: &mut Vec<u8>) -> Result<()>

fn read_line(&mut self, buf: &mut String) -> Result<()>

impl<R> Debug for BufReader<R> where R: Debug

fn fmt(&self, fmt: &mut Formatter) -> Result