Struct headers::IfModifiedSince

pub struct IfModifiedSince(HttpDate);

If-Modified-Since header, defined in RFC7232

The If-Modified-Since header field makes a GET or HEAD request method conditional on the selected representation’s modification date being more recent than the date provided in the field-value. Transfer of the selected representation’s data is avoided if that data has not changed.

ABNF

If-Modified-Since = HTTP-date

Example values

• Sat, 29 Oct 1994 19:43:31 GMT

Example

use headers::IfModifiedSince;
use std::time::{Duration, SystemTime};

let time = SystemTime::now() - Duration::from_secs(60 * 60 * 24);
let if_mod = IfModifiedSince::from(time);

Tuple Fields

0: HttpDate

Implementations

impl IfModifiedSince

pub fn is_modified(&self, last_modified: SystemTime) -> bool

Check if the supplied time means the resource has been modified.

Trait Implementations

impl Clone for IfModifiedSince

fn clone(&self) -> IfModifiedSince

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for IfModifiedSince

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

Formats the value using the given formatter.

impl From<IfModifiedSince> for SystemTime

fn from(date: IfModifiedSince) -> SystemTime

Converts to this type from the input type.

impl From<SystemTime> for IfModifiedSince

fn from(time: SystemTime) -> IfModifiedSince

Converts to this type from the input type.

impl Hash for IfModifiedSince

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl Header for IfModifiedSince

fn name() -> &'static HeaderName

The name of this header.

fn decode<'i, I>(values: &mut I) -> Result<Self, Error>

where I: Iterator<Item = &'i HeaderValue>,

Decode this type from an iterator of HeaderValues.

fn encode<E: Extend<HeaderValue>>(&self, values: &mut E)

Encode this type to a HeaderMap.

impl Ord for IfModifiedSince

fn cmp(&self, other: &IfModifiedSince) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized + PartialOrd,

Restrict a value to a certain interval.

impl PartialEq for IfModifiedSince

fn eq(&self, other: &IfModifiedSince) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialOrd for IfModifiedSince

fn partial_cmp(&self, other: &IfModifiedSince) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

fn lt(&self, other: &Rhs) -> bool

This method tests less than (for self and other) and is used by the < operator.

fn le(&self, other: &Rhs) -> bool

This method tests less than or equal to (for self and other) and is used by the <= operator.

fn gt(&self, other: &Rhs) -> bool

This method tests greater than (for self and other) and is used by the > operator.

fn ge(&self, other: &Rhs) -> bool

This method tests greater than or equal to (for self and other) and is used by the >= operator.

impl Copy for IfModifiedSince

impl Eq for IfModifiedSince

impl StructuralPartialEq for IfModifiedSince