Struct sgx_tstd::io::LineWriter

pub struct LineWriter<W: Write> { /* fields omitted */ }

Wraps a writer and buffers output to it, flushing whenever a newline (0x0a, '\n') is detected.

The BufWriter struct wraps a writer and buffers its output. But it only does this batched write when it goes out of scope, or when the internal buffer is full. Sometimes, you'd prefer to write each line as it's completed, rather than the entire buffer at once. Enter LineWriter. It does exactly that.

If there's still a partial line in the buffer when the LineWriter is dropped, it will flush those contents.

Methods

impl<W: Write> LineWriter<W>

pub fn new(inner: W) -> LineWriter<W>

Creates a new LineWriter.

pub fn with_capacity(cap: usize, inner: W) -> LineWriter<W>

Creates a new LineWriter with a specified capacity for the internal buffer.

pub fn get_ref(&self) -> &W

Gets a reference to the underlying writer.

pub fn get_mut(&mut self) -> &mut W

Gets a mutable reference to the underlying writer.

Caution must be taken when calling methods on the mutable reference returned as extra writes could corrupt the output stream.

pub fn into_inner(self) -> Result<W, IntoInnerError<LineWriter<W>>>

Unwraps this LineWriter, returning the underlying writer.

The internal buffer is written out before returning the writer.

Errors

An Err will be returned if an error occurs while flushing the buffer.

Trait Implementations

impl<W: Write> Write for LineWriter<W>

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

Write a buffer into this object, returning how many bytes were written.

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

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

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

Attempts to write an entire buffer into this write.

fn write_fmt(&mut self, fmt: Arguments) -> Result<()>

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" adaptor for this instance of Write.

impl<W: Write> Debug for LineWriter<W> where     W: Debug,

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

Formats the value using the given formatter.