A CoffeeScript dynamic priority work queue library.
No other dependencies at all, simply:
Suppose you have two asyn functions: doSomething and doSomethingHigher, both take in callback function that they will call once they are done.
q = new queffee.Q q.enQ (callback) -> doSomething (onSuccess: callback), 1 #add a job that has a fixed priority 1 q.enQ (callback) -> doSomethingHigher(onSuccess: callback), () -> 2 #add a job that has priority function (for now it returns 2) q.enQ (callback) -> doSomethingThatMightTimeout(onSuccess: callback), 0, 2000) #timeout the job in 2 secs new queffee.Worker(q).start() #you can have multiple workers. q.reorder() #you can call this to reorder the jobs based on their priority functions #you can also create an array of queffee.Job (constructor using the same signature as enQ) and create the q using the array job1 = new queffee.Job( (callback) -> doSomething1(callback), priority: 1) job2 = new queffee.Job( (callback) -> doSomething2(callback), priority: 0, timeout: 2000) q = new queffee.Q([job1, job2]) #or q.enqueue(job1) q.enqueue(job2)
You can also create enQ work or create job using a synchronized parameterless function, queffee will run it asynchronously.
doSomething = -> #...do something here q.enQ(doSomething) new queffee.Job( doSomething, priority: 0, timeout: 2000)
You can also create enQ work or create job using a parameterless function that returns a promise, queffee will run it and wait for promise to resolve.
The doSomethingHigher will be performed first, and then doSomething. Notice that the second parameter of enQ is the priority, it can be a function or a value. If your works priority is dynamic using the priority function, you can call q.reorder() to re-prioritize you queue whenever you deem appropriate.
Another tool is collectionWorkQ which helps you run asynchronized operations on each items of a collection in a sequence ( meanning it only run one asynchronized operation at a time, won't start the next one until the first one called the success callback) example:
new queffee.CollectionWorkQ( collection: [item1, item2] operation: 'someOperation' onProgress: -> count++ onFinish: -> alert('finished') ).start()
new queffee.CollectionWorkQ( collection: [item1, item2] operation: (item, callback) -> item.someOperation(callback) onProgress: -> count++ onFinish: -> alert('finished') ).start()
To do TDD
Based on the change to module management in
npm v1.0+, the following modules are now local to this project:
You shouldn't have to install them with
npm. If you're not running OS X, or don't have Growl available, you obviously won't see any pretty notifications. But it should be trivial to replace that function with your OS specific variant if you'd like to.
From project root:
cake watch:development and open SpecRunner.html in browser
To build js and min js
- used skeleton project InstantJasmineCoffee
Copyright (c) 2011 Kailuo Wang
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