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CanonicalResponse

Struct CanonicalResponse 

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pub struct CanonicalResponse {
    pub status_code: u16,
    /* private fields */
}
Expand description

统一规范化响应

所有HTTP协议处理后的统一响应结构。

§设计特点

  • 零堆分配:小 Body 使用栈上固定数组,超过 MAX_BODY_LEN 时才使用堆
  • Copy 语义:仅当 Body 超过栈容量时放弃 Copy

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§status_code: u16

状态码

Implementations§

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impl CanonicalResponse

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pub const fn new(status_code: u16) -> CanonicalResponse

创建响应(零堆分配)

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pub const fn ok() -> CanonicalResponse

创建简单的成功响应

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pub const fn error(status_code: u16) -> CanonicalResponse

创建简单的错误响应

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pub fn reset(&mut self)

重置响应(保留状态码,清空其他字段) 用于对象池复用,避免重新创建对象的开销

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pub fn header_count(&self) -> u8

获取头部数量

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pub fn add_header( &mut self, name: &[u8], value: &[u8], ) -> Result<(), &'static str>

添加头部

§安全

拒绝包含 \r\n 的头部名称和值,防止 HTTP 响应拆分攻击。

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pub fn set_body(&mut self, body: impl Into<Vec<u8>>)

设置 Body

§性能
  • Body 长度 <= MAX_BODY_LEN:使用栈上缓冲区,零堆分配
  • Body 长度 > MAX_BODY_LEN:使用堆分配
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pub fn body(&self) -> &[u8]

获取 Body 引用

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pub fn headers_iter(&self) -> &[CanonicalHeader]

获取头部迭代器

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pub fn find_header(&self, name: &str) -> Option<&CanonicalHeader>

按名称查找头部(ASCII 大小写不敏感,RFC 7230 §3.2)

Trait Implementations§

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impl Clone for CanonicalResponse

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fn clone(&self) -> CanonicalResponse

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 CanonicalResponse

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

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

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fn default() -> CanonicalResponse

Returns the “default value” for a type. Read more

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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<ST, DT> CastableFrom<ST, Initialized, Initialized> for DT
where ST: ?Sized, DT: ?Sized,

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impl<ST, DT> CastableFrom<ST, Uninit, Uninit> for DT
where ST: ?Sized, DT: ?Sized,

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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> Instrument for T

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fn instrument(self, span: Span) -> Instrumented<Self>

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more
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fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current Span, returning an Instrumented wrapper. Read more
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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> Read<Exclusive, BecauseExclusive> for T
where T: ?Sized,

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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.
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impl<V, T> VZip<V> for T
where V: MultiLane<T>,

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fn vzip(self) -> V

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impl<T> WithSubscriber for T

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fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>
where S: Into<Dispatch>,

Attaches the provided Subscriber to this type, returning a WithDispatch wrapper. Read more
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fn with_current_subscriber(self) -> WithDispatch<Self>

Attaches the current default Subscriber to this type, returning a WithDispatch wrapper. Read more