CacheLRU

CacheLRU contains maximum size items Eviction policy: 1. evict TTL-ed entry (if TTL enabled), otherwise 2. if oldest entry not expired - evict oldes accessed (LRU)

User can be informed about evicted entries via cache event list.

class CacheLRU (

Allocator = Mallocator

) {

struct CacheEventRange(K, V);

Nullable!V get(K k);

PutResult put(K k, V v);

auto enableCacheEvents();

auto cacheEvents();

}

Members

Functions

cacheEvents auto cacheEvents(): Undocumented in source. Be warned that the author may not have intended to support it.
clear void clear(): Undocumented in source. Be warned that the author may not have intended to support it.
enableCacheEvents auto enableCacheEvents(): Undocumented in source. Be warned that the author may not have intended to support it.
get Nullable!V get(K k): Undocumented in source. Be warned that the author may not have intended to support it.
length size_t length(): Undocumented in source. Be warned that the author may not have intended to support it.
put PutResult put(K k, V v): Undocumented in source.
remove bool remove(K k): Undocumented in source. Be warned that the author may not have intended to support it.
size auto size(size_t s): Undocumented in source. Be warned that the author may not have intended to support it.
size size_t size(): Undocumented in source. Be warned that the author may not have intended to support it.
ttl auto ttl(uint d): Undocumented in source. Be warned that the author may not have intended to support it.
ttl uint ttl(): Undocumented in source. Be warned that the author may not have intended to support it.

Structs

CacheEventRange struct CacheEventRange(K, V): Undocumented in source.

Examples

import std.experimental.allocator.mallocator;

alias allocator = Mallocator.instance;
alias Cache = CacheLRU!(int, string);

auto lru = make!(Cache)(allocator);

lru.size = 2048; // keep 2048 elements in cache
lru.ttl = 60; // set 60 seconds TTL for items in cache

lru.put(1, "one");
auto v = lru.get(0);
assert(v.isNull); // no such item in cache
v = lru.get(1);
assert(v == "one"); // 1 is in cache
lru.remove(1);

CacheLRU

Members

Functions

Structs

Examples

Meta

Source