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HeartbeatState

Struct HeartbeatState 

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pub struct HeartbeatState {
    pub connection_id: String,
    pub last_ping_at: Option<i64>,
    pub last_pong_at: Option<i64>,
    pub missed_count: u32,
    pub total_pings: u64,
    pub total_pongs: u64,
    pub is_dead: bool,
}
Expand description

单连接的心跳状态

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§connection_id: String

连接 ID

§last_ping_at: Option<i64>

上次发送 Ping 的时间戳(毫秒),None 表示尚未发送

§last_pong_at: Option<i64>

上次收到 Pong 的时间戳(毫秒)

§missed_count: u32

连续未收到 Pong 的次数

§total_pings: u64

总共发送的 Ping 次数

§total_pongs: u64

总共收到的 Pong 次数

§is_dead: bool

是否被判定为失活

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impl HeartbeatState

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pub fn new(connection_id: impl Into<String>) -> Self

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pub fn record_ping(&mut self, now_ms: i64)

记录发送了一次 Ping

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pub fn record_pong(&mut self, now_ms: i64) -> bool

记录收到了一次 Pong。返回是否清除了未应答计数。

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pub fn check_timeout(&mut self, now_ms: i64, config: &HeartbeatConfig) -> bool

检查是否超时未收到 Pong。 返回 true 表示本次检查新增了一次未应答。

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pub fn rtt_ms(&self) -> Option<i64>

当前 RTT 估计(毫秒)。需要 last_ping 和 last_pong 都存在。

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pub fn awaiting_pong(&self) -> bool

是否正在等待 Pong 应答

Trait Implementations§

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impl Clone for HeartbeatState

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fn clone(&self) -> HeartbeatState

Returns a duplicate of the value. Read more
1.0.0 (const: unstable) · Source§

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

Performs copy-assignment from source. Read more
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impl Debug for HeartbeatState

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

Formats the value using the given formatter. Read more

Auto Trait Implementations§

Blanket Implementations§

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dest. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.