Struct bytes::SliceBuf

pub struct SliceBuf<T> { /* fields omitted */ }

A Buf backed by a contiguous region of memory.

This Buf is better suited for cases where there is a clear delineation between reading and writing.

Methods

impl<T: AsRef<[u8]>> SliceBuf<T>

fn new(mem: T) -> SliceBuf<T>

Creates a new SliceBuf wrapping the provided slice

fn capacity(&self) -> usize

Return the number of bytes the buffer can contain

fn position(&self) -> usize

Return the read cursor position

fn set_position(&mut self, position: usize)

Set the read cursor position

fn len(&self) -> usize

Return the number of buffered bytes

fn is_empty(&self) -> bool

Returns true if the buffer contains no unread bytes

fn clear(&mut self)

Clears the buffer, removing any written data

Trait Implementations

impl<T> Buf for SliceBuf<T> where T: AsRef<[u8]>

fn remaining(&self) -> usize

Returns the number of bytes that can be accessed from the Buf

fn bytes(&self) -> &[u8]

Returns a slice starting at the current Buf position and of length between 0 and Buf::remaining().

fn advance(&mut self, cnt: usize)

Advance the internal cursor of the Buf

fn copy_to_slice(&mut self, dst: &mut [u8])

Copies bytes from the Buf into the given slice and advance the cursor by the number of bytes copied.

fn has_remaining(&self) -> bool

Returns true if there are any more bytes to consume

fn copy_to<S: Sink + ?Sized>(&mut self, dst: &mut S) where Self: Sized

Copies bytes from self into dst

fn peek_u8(&self) -> Option<u8>

Gets an unsigned 8 bit integer from the Buf without advancing the buffer cursor

fn get_u8(&mut self) -> u8

Gets an unsigned 8 bit integer from the Buf.

fn get_i8(&mut self) -> i8

Gets a signed 8 bit integer from the Buf.

fn get_u16<T: ByteOrder>(&mut self) -> u16

Gets an unsigned 16 bit integer from the Buf

fn get_i16<T: ByteOrder>(&mut self) -> i16

Gets a signed 16 bit integer from the Buf

fn get_u32<T: ByteOrder>(&mut self) -> u32

Gets an unsigned 32 bit integer from the Buf

fn get_i32<T: ByteOrder>(&mut self) -> i32

Gets a signed 32 bit integer from the Buf

fn get_u64<T: ByteOrder>(&mut self) -> u64

Gets an unsigned 64 bit integer from the Buf

fn get_i64<T: ByteOrder>(&mut self) -> i64

Gets a signed 64 bit integer from the Buf

fn get_uint<T: ByteOrder>(&mut self, nbytes: usize) -> u64

Gets an unsigned n-bytes integer from the Buf

fn get_int<T: ByteOrder>(&mut self, nbytes: usize) -> i64

Gets a signed n-bytes integer from the Buf

fn get_f32<T: ByteOrder>(&mut self) -> f32

Gets a IEEE754 single-precision (4 bytes) floating point number from the Buf

fn get_f64<T: ByteOrder>(&mut self) -> f64

Gets a IEEE754 double-precision (8 bytes) floating point number from the Buf

fn by_ref(&mut self) -> &mut Self where Self: Sized

Creates a "by reference" adaptor for this instance of Buf

fn take(self, limit: usize) -> Take<Self> where Self: Sized

Create an adapter which will limit at most limit bytes from it.

fn reader(self) -> Reader<Self> where Self: Sized

Return a Reader for the value. Allows using a Buf as an io::Read

impl<T> BufMut for SliceBuf<T> where T: AsRef<[u8]> + AsMut<[u8]>

fn remaining_mut(&self) -> usize

Returns the number of bytes that can be written to the BufMut

unsafe fn advance_mut(&mut self, cnt: usize)

Advance the internal cursor of the BufMut

unsafe fn bytes_mut(&mut self) -> &mut [u8]

Returns a mutable slice starting at the current BufMut position and of length between 0 and BufMut::remaining().

fn copy_from_slice(&mut self, src: &[u8])

Copies bytes from the given slice into the BufMut and advance the cursor by the number of bytes written. Returns the number of bytes written.

fn has_remaining_mut(&self) -> bool

Returns true iff there is any more space for bytes to be written

fn copy_from<S: Source>(&mut self, src: S) where Self: Sized

Copies bytes from src into self

fn put_str(&mut self, src: &str)

Writes the given string into self.

fn put_u8(&mut self, n: u8)

Writes an unsigned 8 bit integer to the BufMut.

fn put_i8(&mut self, n: i8)

Writes a signed 8 bit integer to the BufMut.

fn put_u16<T: ByteOrder>(&mut self, n: u16)

Writes an unsigned 16 bit integer to the BufMut.

fn put_i16<T: ByteOrder>(&mut self, n: i16)

Writes a signed 16 bit integer to the BufMut.

fn put_u32<T: ByteOrder>(&mut self, n: u32)

Writes an unsigned 32 bit integer to the BufMut.

fn put_i32<T: ByteOrder>(&mut self, n: i32)

Writes a signed 32 bit integer to the BufMut.

fn put_u64<T: ByteOrder>(&mut self, n: u64)

Writes an unsigned 64 bit integer to the BufMut.

fn put_i64<T: ByteOrder>(&mut self, n: i64)

Writes a signed 64 bit integer to the BufMut.

fn put_uint<T: ByteOrder>(&mut self, n: u64, nbytes: usize)

Writes an unsigned n-bytes integer to the BufMut.

fn put_int<T: ByteOrder>(&mut self, n: i64, nbytes: usize)

Writes a signed n-bytes integer to the BufMut.

fn put_f32<T: ByteOrder>(&mut self, n: f32)

Writes a IEEE754 single-precision (4 bytes) floating point number to the BufMut.

fn put_f64<T: ByteOrder>(&mut self, n: f64)

Writes a IEEE754 double-precision (8 bytes) floating point number to the BufMut.

fn by_ref(&mut self) -> &mut Self where Self: Sized

Creates a "by reference" adaptor for this instance of BufMut

fn take_mut(self, limit: usize) -> TakeMut<Self> where Self: Sized

Create an adapter which will limit at most limit bytes from it.

fn writer(self) -> Writer<Self> where Self: Sized

Return a Write for the value. Allows using a BufMut as an io::Write

impl<T> Debug for SliceBuf<T> where T: AsRef<[u8]>

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

Formats the value using the given formatter.

impl<T> Write for SliceBuf<T> where T: AsRef<[u8]> + AsMut<[u8]>

fn write_str(&mut self, s: &str) -> Result

Writes a slice of bytes into this writer, returning whether the write succeeded.

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

Glue for usage of the write! macro with implementors of this trait.

fn write_char(&mut self, c: char) -> Result<(), Error>

Writes a char into this writer, returning whether the write succeeded.