Struct Message

pub struct Message {
    pub src: String,
    pub dest: String,
    pub body: MessageBody,
}

Message represents a message sent from Src node to Dest node. The body is stored as parsed MessageBody along with the original string and all extra fields.

Fields

src: String

dest: String

body: MessageBody

Implementations

impl Message

pub fn get_type(&self) -> &str

Examples found in repository

examples/echo.rs (line 25)

    async fn process(&self, runtime: Runtime, req: Message) -> Result<()> {
        if req.get_type() == "echo" {
            let echo = req.body.clone().with_type("echo_ok");
            return runtime.reply(req, echo).await;
        }

        done(runtime, req)
    }

examples/echo_failure.rs (line 29)

    async fn process(&self, runtime: Runtime, message: Message) -> Result<()> {
        if message.get_type() == "echo" {
            if self.inter.fetch_add(1, Ordering::SeqCst) > 0 {
                let err = maelstrom::Error::TemporarilyUnavailable {};
                let body = ErrorMessageBody::from_error(err);
                return runtime.reply(message, body).await;
            }

            let echo = format!("Another echo {}", message.body.msg_id);
            let msg = Value::Object(Map::from_iter([("echo".to_string(), Value::String(echo))]));
            return runtime.reply(message, msg).await;
        }

        done(runtime, message)
    }

Trait Implementations

impl Clone for Message

fn clone(&self) -> Message

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Message

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

Formats the value using the given formatter.

impl Default for Message

fn default() -> Message

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for Message

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl PartialEq for Message

fn eq(&self, other: &Message) -> bool

Tests for self and other values to be equal, and is used by ==.

const fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Serialize for Message

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl Eq for Message

impl StructuralPartialEq for Message