NewQueueTask creates a new QueueTask from the given Task.

WrapCompare wraps a QueueTask comparison function so it can be used as comparison for a priority queue.

FIFOCompare is a basic task comparator that returns tasks in the order created.

PriorityCompare respects the target peer's task priority.

QueueTask contains a Task, and also some bookkeeping information.

Task is a single task to be executed in Priority order.

Data is used by the client to associate extra information with a Task.

Topic is a non-unique name for a task.