Struct http_body::SizeHint [−][src]
A Body
size hint
The default implementation returns:
- 0 for
lower
None
forupper
.
Implementations
impl SizeHint
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pub fn new() -> SizeHint
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Returns a new SizeHint
with default values
pub fn with_exact(value: u64) -> SizeHint
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Returns a new SizeHint
with both upper and lower bounds set to the
given value.
pub fn lower(&self) -> u64
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Returns the lower bound of data that the Body
will yield before
completing.
pub fn set_lower(&mut self, value: u64)
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pub fn upper(&self) -> Option<u64>
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Returns the upper bound of data the Body
will yield before
completing, or None
if the value is unknown.
pub fn set_upper(&mut self, value: u64)
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pub fn exact(&self) -> Option<u64>
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Returns the exact size of data that will be yielded if the
lower
and upper
bounds are equal.
pub fn set_exact(&mut self, value: u64)
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Set the value of the lower
and upper
bounds to exactly the same.
Trait Implementations
Auto Trait Implementations
impl RefUnwindSafe for SizeHint
impl Send for SizeHint
impl Sync for SizeHint
impl Unpin for SizeHint
impl UnwindSafe for SizeHint
Blanket Implementations
impl<T> Any for T where
T: 'static + ?Sized,
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T: 'static + ?Sized,
impl<T> Borrow<T> for T where
T: ?Sized,
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T: ?Sized,
impl<T> BorrowMut<T> for T where
T: ?Sized,
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T: ?Sized,
pub fn borrow_mut(&mut self) -> &mut T
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impl<T> From<T> for T
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impl<T, U> Into<U> for T where
U: From<T>,
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U: From<T>,
impl<T> ToOwned for T where
T: Clone,
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T: Clone,
type Owned = T
The resulting type after obtaining ownership.
pub fn to_owned(&self) -> T
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pub fn clone_into(&self, target: &mut T)
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impl<T, U> TryFrom<U> for T where
U: Into<T>,
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U: Into<T>,
type Error = Infallible
The type returned in the event of a conversion error.
pub fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>
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impl<T, U> TryInto<U> for T where
U: TryFrom<T>,
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U: TryFrom<T>,