pub struct Age(_);
Expand description
Age
header, defined in RFC7234
The “Age” header field conveys the sender’s estimate of the amount of time since the response was generated or successfully validated at the origin server. Age values are calculated as specified in Section 4.2.3.
ABNF
Age = delta-seconds
The Age field-value is a non-negative integer, representing time in seconds (see Section 1.2.1).
The presence of an Age header field implies that the response was not generated or validated by the origin server for this request. However, lack of an Age header field does not imply the origin was contacted, since the response might have been received from an HTTP/1.0 cache that does not implement Age.
Example values
3600
Example
use headers::Age;
let len = Age::from_secs(60);
Implementations
Trait Implementations
sourceimpl Header for Age
impl Header for Age
sourceimpl Ord for Age
impl Ord for Age
1.21.0 · sourceconst fn max(self, other: Self) -> Self
const fn max(self, other: Self) -> Self
Compares and returns the maximum of two values. Read more
1.21.0 · sourceconst fn min(self, other: Self) -> Self
const fn min(self, other: Self) -> Self
Compares and returns the minimum of two values. Read more
1.50.0 · sourceconst fn clamp(self, min: Self, max: Self) -> Selfwhere
Self: PartialOrd<Self>,
const fn clamp(self, min: Self, max: Self) -> Selfwhere
Self: PartialOrd<Self>,
Restrict a value to a certain interval. Read more
sourceimpl PartialOrd<Age> for Age
impl PartialOrd<Age> for Age
sourcefn partial_cmp(&self, other: &Age) -> Option<Ordering>
fn partial_cmp(&self, other: &Age) -> Option<Ordering>
1.0.0 · sourceconst fn le(&self, other: &Rhs) -> bool
const fn le(&self, other: &Rhs) -> bool
This method tests less than or equal to (for
self
and other
) and is used by the <=
operator. Read moreimpl Copy for Age
impl Eq for Age
impl StructuralEq for Age
impl StructuralPartialEq for Age
Auto Trait Implementations
impl RefUnwindSafe for Age
impl Send for Age
impl Sync for Age
impl Unpin for Age
impl UnwindSafe for Age
Blanket Implementations
sourceimpl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere
T: ?Sized,
const: unstable · sourcefn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more
sourceimpl<Q, K> Equivalent<K> for Qwhere
Q: Eq + ?Sized,
K: Borrow<Q> + ?Sized,
impl<Q, K> Equivalent<K> for Qwhere
Q: Eq + ?Sized,
K: Borrow<Q> + ?Sized,
sourcefn equivalent(&self, key: &K) -> bool
fn equivalent(&self, key: &K) -> bool
Compare self to
key
and return true
if they are equal.