Data.Cache.Internal

This modules exposes some of the internals of Cache as well as some auxiliary functions for expert users.

Cache constructor

data Cache k v

The cache with keys of type k and values of type v.

Create caches with the newCache and copyCache functions.

Constructors

Cache

Fields

• container :: TVar (HashMap k (CacheItem v))
• defaultExpiration :: Maybe TimeSpec

  The default expiration value of newly added cache items.

  See newCache for more information on the default expiration value.

data CacheItem v

A container data type holding a cache item.

Constructors

CacheItem

Fields

• item :: v
• itemExpiration :: Maybe TimeSpec

Unsafe auxiliary functions

nowSTM :: STM TimeSpec

Get the current time in the STM monad using unsafeIOToSTM.