taskerl

Simple task scheduler + worker library.

Tasks sent to a single worker will get serialized, you can have as many different workers as you want.

How to use:

Include it as a dependency, and from your code, call:

    {ok, Taskerl} = taskerl:start_link(OnlyAck, QueueLimit),

    WaitingFun = fun(Expected) -> timer:sleep(3000), Expected end,
    taskerl:run(Taskerl, WaitingFun, [1]))
    taskerl:run_async(Taskerl, WaitingFun, [2]))

After QueueLimit is exhausted, any :run( call will return {taskerl, {error, queue_full}} while :run_async( will log a warning.

OnlyAck is a boolean that makes the underlying queue reply {taskerl, {ok, Id}} when the queue has stored the request instead of blocking the caller process until the request has been fulfilled.
The state of a request can be queried with get_request_status/2.

Why does it return {taskerl, ...}?

In the case of run(, it may return the actual result of the task.

Can I use the serializer standalone?

Sure! The serializer is able to queue any gen_server:call (and transform gen_server:cast to call) and send them to a gen_server worker, while the worker itself is doing other tasks (like reconnecting, waiting for some condition, etc).
Check the code in taskerl.erl and the first lines of the serializer to see how to use it.

Run tests:

rebar3 ct

Authors

• Jose M Perez Ramos - Kuroneer

License

MIT License