Enum NegotiationOutcome 

pub enum NegotiationOutcome {
    Accepted {
        header_value: String,
        metadata: ProtocolMetadata,
    },
    NotRequested,
    NoMatch {
        requested: Vec<String>,
    },
}

协商结果，携带详细的匹配信息。

Variants

Accepted

协商成功，返回选定的协议标识与元数据

Fields

header_value: String

选定的协议 header 值（如 “chat.1.0”）

metadata: ProtocolMetadata

选定协议的元数据

NotRequested

客户端未请求任何子协议

NoMatch

客户端请求了协议，但服务端均不支持

Fields

requested: Vec<String>

客户端请求的协议列表

Implementations

impl NegotiationOutcome

pub fn is_accepted(&self) -> bool

判断是否协商成功

pub fn header_value(&self) -> Option<&str>

获取选定协议的 header 值（协商失败时返回 None）

Trait Implementations

impl Clone for NegotiationOutcome

fn clone(&self) -> NegotiationOutcome

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for NegotiationOutcome

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

Formats the value using the given formatter.

impl Eq for NegotiationOutcome

impl PartialEq for NegotiationOutcome

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for NegotiationOutcome