zng::task::http

Struct CachePolicy

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pub struct CachePolicy(/* private fields */);
Expand description

Represents a serializable configuration for a cache entry in a CacheDb.

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impl CachePolicy

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pub fn age(&self, now: SystemTime) -> Duration

Returns how long the response has been sitting in cache.

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pub fn time_to_live(&self, now: SystemTime) -> Duration

Returns approximate time in milliseconds until the response becomes stale.

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pub fn is_stale(&self, now: SystemTime) -> bool

Returns true if the cache entry has expired.

Trait Implementations§

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impl Clone for CachePolicy

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fn clone(&self) -> CachePolicy

Returns a copy of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for CachePolicy

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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<'de> Deserialize<'de> for CachePolicy

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

Deserialize this value from the given Serde deserializer. Read more
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impl From<CachePolicy> for CachePolicy

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fn from(p: CachePolicy) -> CachePolicy

Converts to this type from the input type.
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impl Serialize for CachePolicy

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

Serialize this value into the given Serde serializer. Read more

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Immutably borrows from an owned value. Read more
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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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unsafe fn clone_to_uninit(&self, dst: *mut T)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dst. Read more
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