Struct bytes::buf::Take [] [src]

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

A Buf adapter which limits the bytes read from an underlying buffer.

This struct is generally created by calling take() on Buf. See documentation of take() for more details.

Methods

impl<T> Take<T>
[src]

[src]

Consumes this Take, returning the underlying value.

Examples

use bytes::{Buf, BufMut};
use std::io::Cursor;

let mut buf = Cursor::new(b"hello world").take(2);
let mut dst = vec![];

dst.put(&mut buf);
assert_eq!(*dst, b"he"[..]);

let mut buf = buf.into_inner();

dst.clear();
dst.put(&mut buf);
assert_eq!(*dst, b"llo world"[..]);

[src]

Gets a reference to the underlying Buf.

It is inadvisable to directly read from the underlying Buf.

Examples

use bytes::{Buf, BufMut};
use std::io::Cursor;

let mut buf = Cursor::new(b"hello world").take(2);

assert_eq!(0, buf.get_ref().position());

[src]

Gets a mutable reference to the underlying Buf.

It is inadvisable to directly read from the underlying Buf.

Examples

use bytes::{Buf, BufMut};
use std::io::Cursor;

let mut buf = Cursor::new(b"hello world").take(2);
let mut dst = vec![];

buf.get_mut().set_position(2);

dst.put(&mut buf);
assert_eq!(*dst, b"ll"[..]);

[src]

Returns the maximum number of bytes that can be read.

Note

If the inner Buf has fewer bytes than indicated by this method then that is the actual number of available bytes.

Examples

use bytes::Buf;
use std::io::Cursor;

let mut buf = Cursor::new(b"hello world").take(2);

assert_eq!(2, buf.limit());
assert_eq!(b'h', buf.get_u8());
assert_eq!(1, buf.limit());

[src]

Sets the maximum number of bytes that can be read.

Note

If the inner Buf has fewer bytes than lim then that is the actual number of available bytes.

Examples

use bytes::{Buf, BufMut};
use std::io::Cursor;

let mut buf = Cursor::new(b"hello world").take(2);
let mut dst = vec![];

dst.put(&mut buf);
assert_eq!(*dst, b"he"[..]);

dst.clear();

buf.set_limit(3);
dst.put(&mut buf);
assert_eq!(*dst, b"llo"[..]);

Trait Implementations

impl<T: Debug> Debug for Take<T>
[src]

[src]

Formats the value using the given formatter.

impl<T: Buf> Buf for Take<T>
[src]

[src]

Returns the number of bytes between the current position and the end of the buffer. Read more

[src]

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

[src]

Advance the internal cursor of the Buf Read more

[src]

Fills dst with potentially multiple slices starting at self's current position. Read more

[src]

Returns true if there are any more bytes to consume Read more

[src]

Copies bytes from self into dst. Read more

[src]

Gets an unsigned 8 bit integer from self. Read more

[src]

Gets a signed 8 bit integer from self. Read more

[src]

Gets an unsigned 16 bit integer from self in the specified byte order. Read more

[src]

Gets a signed 16 bit integer from self in the specified byte order. Read more

[src]

Gets an unsigned 32 bit integer from self in the specified byte order. Read more

[src]

Gets a signed 32 bit integer from self in the specified byte order. Read more

[src]

Gets an unsigned 64 bit integer from self in the specified byte order. Read more

[src]

Gets a signed 64 bit integer from self in the specified byte order. Read more

[src]

Gets an unsigned n-byte integer from self in the specified byte order. Read more

[src]

Gets a signed n-byte integer from self in the specified byte order. Read more

[src]

Gets an IEEE754 single-precision (4 bytes) floating point number from self in the specified byte order. Read more

[src]

Gets an IEEE754 double-precision (8 bytes) floating point number from self in the specified byte order. Read more

[src]

Transforms a Buf into a concrete buffer. Read more

[src]

Creates an adaptor which will read at most limit bytes from self. Read more

[src]

Creates an adaptor which will chain this buffer with another. Read more

[src]

Creates a "by reference" adaptor for this instance of Buf. Read more

[src]

Creates an adaptor which implements the Read trait for self. Read more

[src]

Returns an iterator over the bytes contained by the buffer. Read more