[][src]Struct tokio::codec::LinesCodec

pub struct LinesCodec { /* fields omitted */ }

A simple Codec implementation that splits up data into lines.

Methods

impl LinesCodec
[src]

Returns a LinesCodec for splitting up data into lines.

Note

The returned LinesCodec will not have an upper bound on the length of a buffered line. See the documentation for new_with_max_length for information on why this could be a potential security risk.

Returns a LinesCodec with a maximum line length limit.

If this is set, calls to LinesCodec::decode will return a LengthError when a line exceeds the length limit. Subsequent calls will discard up to limit bytes from that line until a newline character is reached, returning None until the line over the limit has been fully discarded. After that point, calls to decode will function as normal.

Note

Setting a length limit is highly recommended for any LinesCodec which will be exposed to untrusted input. Otherwise, the size of the buffer that holds the line currently being read is unbounded. An attacker could exploit this unbounded buffer by sending an unbounded amount of input without any \n characters, causing unbounded memory consumption.

Returns the maximum line length when decoding.

use std::usize;
use tokio_codec::LinesCodec;

let codec = LinesCodec::new();
assert_eq!(codec.max_length(), usize::MAX);
use tokio_codec::LinesCodec;

let codec = LinesCodec::new_with_max_length(256);
assert_eq!(codec.max_length(), 256);

Trait Implementations

impl Clone for LinesCodec
[src]

Returns a copy of the value. Read more

Performs copy-assignment from source. Read more

impl PartialOrd<LinesCodec> for LinesCodec
[src]

This method returns an ordering between self and other values if one exists. Read more

This method tests less than (for self and other) and is used by the < operator. Read more

This method tests less than or equal to (for self and other) and is used by the <= operator. Read more

This method tests greater than (for self and other) and is used by the > operator. Read more

This method tests greater than or equal to (for self and other) and is used by the >= operator. Read more

impl Ord for LinesCodec
[src]

This method returns an Ordering between self and other. Read more

Compares and returns the maximum of two values. Read more

Compares and returns the minimum of two values. Read more

impl Decoder for LinesCodec
[src]

The type of decoded frames.

The type of unrecoverable frame decoding errors. Read more

Attempts to decode a frame from the provided buffer of bytes. Read more

A default method available to be called when there are no more bytes available to be read from the underlying I/O. Read more

Provides a Stream and Sink interface for reading and writing to this Io object, using Decode and Encode to read and write the raw data. Read more

impl Eq for LinesCodec
[src]

impl Encoder for LinesCodec
[src]

The type of items consumed by the Encoder

The type of encoding errors. Read more

Encodes a frame into the buffer provided. Read more

impl Hash for LinesCodec
[src]

Feeds this value into the given [Hasher]. Read more

Feeds a slice of this type into the given [Hasher]. Read more

impl PartialEq<LinesCodec> for LinesCodec
[src]

This method tests for self and other values to be equal, and is used by ==. Read more

This method tests for !=.

impl Debug for LinesCodec
[src]

Formats the value using the given formatter. Read more

Auto Trait Implementations

impl Send for LinesCodec

impl Sync for LinesCodec

Blanket Implementations

impl<T, U> Into for T where
    U: From<T>, 
[src]

Performs the conversion.

impl<T> ToOwned for T where
    T: Clone
[src]

Creates owned data from borrowed data, usually by cloning. Read more

🔬 This is a nightly-only experimental API. (toowned_clone_into)

recently added

Uses borrowed data to replace owned data, usually by cloning. Read more

impl<T> From for T
[src]

Performs the conversion.

impl<T, U> TryFrom for T where
    T: From<U>, 
[src]

🔬 This is a nightly-only experimental API. (try_from)

The type returned in the event of a conversion error.

🔬 This is a nightly-only experimental API. (try_from)

Performs the conversion.

impl<T> Borrow for T where
    T: ?Sized
[src]

Important traits for &'a mut R

Immutably borrows from an owned value. Read more

impl<T> BorrowMut for T where
    T: ?Sized
[src]

Important traits for &'a mut R

Mutably borrows from an owned value. Read more

impl<T, U> TryInto for T where
    U: TryFrom<T>, 
[src]

🔬 This is a nightly-only experimental API. (try_from)

The type returned in the event of a conversion error.

🔬 This is a nightly-only experimental API. (try_from)

Performs the conversion.

impl<T> Any for T where
    T: 'static + ?Sized
[src]

🔬 This is a nightly-only experimental API. (get_type_id)

this method will likely be replaced by an associated static

Gets the TypeId of self. Read more

impl<T> Erased for T