In-memory cache that prevents redundant async work.
var Cache = ;var cache = ;// if nothing is cached or being cached, produces a cache misscache;// mark `foo` as being cachedcache;// the cache will wait until `foo` has been cachedcache;// put `foo` into the cachecache;// this calls back immediatelycache;
Create a new cache.
You can overwrite the default in-memory storage by providing
lib/mem_store.js for an example implementation.
Get the value stored at
Waits when the value is being cached (as signaled by
If the value couldn't be found returns
key in the cache. Notifies waiting
key as being cached. Call
Cache#set to resolve.
With npm do
$ npm install waiting-cache
Copyright (c) 2013 Julian Gruber <email@example.com>
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