SDL.Data.Cache

This module provides a simple caching implementation based on the LRU caching strategy. The cache is implemented via software transactional memory, which means that you can use the cache from different threads.

Documentation

class Cacheable r where

Something is cacheable if there is an action to release the resource (if necessary).

Methods

releaseResource :: r -> IO ()

Instances

Cacheable Surface

Cacheable Texture

data Cache k a

newCache

Arguments

:: Ord k

=> Int

the size of the cache to be created (in elements)

-> IO (Cache k a)

Create a new cache instance.

throughCache

Arguments

:: (Cacheable r, Ord k)

=> Cache k r

cache instance

-> k

cache key

-> IO r

action to generate the rsource

-> IO r

Check if a certain element is already cached. If not execute the action the generate this element.

emptyCache :: (Cacheable r, Ord k) => Cache k r -> IO ()

Invalidate every element in the cache and release the resources accordingly.