Struct websocket::Message

pub struct Message<'a> {
    pub opcode: Type,
    pub cd_status_code: Option<u16>,
    pub payload: Cow<'a, [u8]>,
}

Represents a WebSocket message.

This message also has the ability to not own its payload, and stores its entire payload in chunks that get written in order when the message gets sent. This makes the write_payload allocate less memory than the payload method (which creates a new buffer every time).

Incidentally this (the default implementation of Message) implements the DataFrame trait because this message just gets sent as one single DataFrame.

Fields

opcode: Type

Type of WebSocket message

cd_status_code: Option<u16>

Optional status code to send when closing a connection. (only used if this message is of Type::Close)

payload: Cow<'a, [u8]>

Main payload

Implementations

impl<'a> Message<'a>

pub fn text<S>(data: S) -> Message<'a> where
    S: Into<Cow<'a, str>>, 

Create a new WebSocket message with text data

pub fn binary<B>(data: B) -> Message<'a> where
    B: IntoCowBytes<'a>, 

Create a new WebSocket message with binary data

pub fn close() -> Message<'a>

Create a new WebSocket message that signals the end of a WebSocket connection, although messages can still be sent after sending this

pub fn close_because<S>(code: u16, reason: S) -> Message<'a> where
    S: Into<Cow<'a, str>>, 

Create a new WebSocket message that signals the end of a WebSocket connection and provide a text reason and a status code for why. Messages can still be sent after sending this message.

pub fn ping<P>(data: P) -> Message<'a> where
    P: IntoCowBytes<'a>, 

Create a ping WebSocket message, a pong is usually sent back after sending this with the same data

pub fn pong<P>(data: P) -> Message<'a> where
    P: IntoCowBytes<'a>, 

Create a pong WebSocket message, usually a response to a ping message

pub fn into_pong(&mut self) -> Result<(), ()>

Convert a ping message to a pong, keeping the data. This will fail if the original message is not a ping.

Trait Implementations

impl<'a> Clone for Message<'a>

pub fn clone(&self) -> Message<'a>

Returns a copy of the value.

pub fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl<'a> DataFrame for Message<'a>

pub fn is_last(&self) -> bool

Is this dataframe the final dataframe of the message?

pub fn opcode(&self) -> u8

What type of data does this dataframe contain?

pub fn reserved(&self) -> &[bool; 3]

Reserved bits of this dataframe

pub fn size(&self) -> usize

How long (in bytes) is this dataframe’s payload

pub fn write_payload(
    &self,
    socket: &mut dyn Write
) -> Result<(), WebSocketError>

Write the payload to a writer

pub fn take_payload(self) -> Vec<u8, Global>

Takes the payload out into a vec

pub fn frame_size(&self, masked: bool) -> usize

Get’s the size of the entire dataframe in bytes, i.e. header and payload.

pub fn write_to(
    &self,
    writer: &mut dyn Write,
    mask: bool
) -> Result<(), WebSocketError>

Writes a DataFrame to a Writer.

impl<'a> Debug for Message<'a>

pub fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter.

impl<'a> Eq for Message<'a>

impl<'m> From<Message<'m>> for OwnedMessage

pub fn from(message: Message<'m>) -> OwnedMessage

Performs the conversion.

impl<'m> From<OwnedMessage> for Message<'m>

pub fn from(message: OwnedMessage) -> Message<'m>

Performs the conversion.

impl<'a> Message for Message<'a>

pub fn serialize(
    &self,
    writer: &mut dyn Write,
    masked: bool
) -> Result<(), WebSocketError>

Attempt to form a message from a series of data frames

pub fn message_size(&self, masked: bool) -> usize

Returns how many bytes this message will take up

pub fn from_dataframes<D>(
    frames: Vec<D, Global>
) -> Result<Message<'a>, WebSocketError> where
    D: DataFrame, 

Attempt to form a message from a series of data frames

impl<'a> PartialEq<Message<'a>> for Message<'a>

pub fn eq(&self, other: &Message<'a>) -> bool

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

pub fn ne(&self, other: &Message<'a>) -> bool

This method tests for !=.

impl<'a> StructuralEq for Message<'a>

impl<'a> StructuralPartialEq for Message<'a>