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ConnectionPolicy

Struct ConnectionPolicy 

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pub struct ConnectionPolicy {
    pub startup_required: bool,
    pub request_timeout_ms: u64,
    pub poll_interval_ms: u64,
    pub max_age_ms: u64,
    pub stale_if_error_ms: u64,
    pub idle_timeout_ms: u64,
    pub initial_backoff_ms: u64,
    pub max_backoff_ms: u64,
}
Expand description

单个连接的准备、查询、证据时效和回收预算。

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§startup_required: bool

是否要求启动阶段确认成功;失败时阻止宿主完成启动。

§request_timeout_ms: u64

一次请求的最大耗时,单位为毫秒。

§poll_interval_ms: u64

后台轮询间隔,单位为毫秒,必须留出请求和证据时效预算。

§max_age_ms: u64

发现证据的最大年龄,单位为毫秒。

§stale_if_error_ms: u64

查询异常后的旧证据宽限,单位为毫秒;零表示禁止异常复用。

§idle_timeout_ms: u64

无人使用的服务观察保留时长,单位为毫秒。

§initial_backoff_ms: u64

连接恢复的初始退避,单位为毫秒。

§max_backoff_ms: u64

连接恢复退避的上限,单位为毫秒。

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impl ConnectionPolicy

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pub fn validate(&self) -> Result<()>

业务作用:校验一次操作与观察周期能否落在证据有效期内。 参数说明:无。 返回:预算不合理时在任何网络活动之前拒绝配置。

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impl Clone for ConnectionPolicy

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fn clone(&self) -> Self

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 ConnectionPolicy

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

Formats the value using the given formatter. Read more
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impl Default for ConnectionPolicy

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fn default() -> Self

业务作用:默认要求连接可用,并在查询异常时停止使用旧证据。 参数说明:无。 返回:操作、轮询、证据年龄与空闲回收的有限预算。

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impl<'de> Deserialize<'de> for ConnectionPolicy

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fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>
where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer. Read more
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impl Serialize for ConnectionPolicy

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

Serialize this value into the given Serde serializer. Read more

Auto Trait 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> DeserializeOwned for T
where T: for<'de> Deserialize<'de>,

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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 = !

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

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.