ocean v6.2.0 (2021-12-09T10:56:40Z)

ExpiringCache.exists

ocean util container cache ExpiringCache ExpiringCache

Checks whether an item exists in the cache and updates its access time. If the life time of the item has expired, it is removed.

  1. bool exists(hash_t key, bool expired)
    class ExpiringCache(size_t ValueSize = 0)
    bool
    exists
    (
    hash_t key
    ,
    out bool expired
    )
    out (does_exist) { if (expired) assert (!does_exist); }
  2. bool exists(hash_t key)

Parameters

key hash_t

key to lookup

expired bool

true: an item was found but removed because it was expired

Return Value

Type: bool

true if item exists in cache and its life time is not yet expired.

Out: If expired is false, the return value is false.

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ocean util container cache ExpiringCache ExpiringCache constructorsfunctionsvariables

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