pub struct MemoryCappedHashmap { /* private fields */ }
Available on crate feature object-cache-dynamic
only.
Expand description
An LRU cache with hash map backing and an eviction rule based on the memory usage for object data in bytes.
The amount of bytes we can hold in total, or the value we saw in new(…)
.
Return a new instance which evicts least recently used items if it uses more than memory_cap_in_bytes
object data.
Put the object going by id
of kind
with data
into the cache.
Try to retrieve the object named id
and place its data into out
if available and return Some(kind)
if found.
Immutably borrows from an owned value.
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Mutably borrows from an owned value.
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Returns the argument unchanged.
Calls U::from(self)
.
That is, this conversion is whatever the implementation of
From<T> for U
chooses to do.
The type returned in the event of a conversion error.
Performs the conversion.
The type returned in the event of a conversion error.
Performs the conversion.