Struct MessageContext 

pub struct MessageContext {
    pub frame: Frame,
    pub connection_id: Option<String>,
    pub parser: MessageParser,
    pub metadata: Arc<RwLock<HashMap<String, Vec<u8>>>>,
}

消息处理上下文

包含消息处理所需的所有上下文信息

Fields

frame: Frame

原始 Frame

connection_id: Option<String>

连接 ID（服务端）或 None（客户端）

parser: MessageParser

消息解析器（用于序列化/压缩）

metadata: Arc<RwLock<HashMap<String, Vec<u8>>>>

元数据（用于中间件传递数据）

Implementations

impl MessageContext

pub fn new( frame: Frame, connection_id: Option<String>, parser: MessageParser, ) -> Self

创建新的消息上下文

pub async fn set_metadata(&self, key: String, value: Vec<u8>)

设置元数据

pub async fn get_metadata(&self, key: &str) -> Option<Vec<u8>>

获取元数据

Trait Implementations

impl Clone for MessageContext

fn clone(&self) -> MessageContext

Returns a duplicate of the value.

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

Performs copy-assignment from source.