event

Overview ¶

Package `event` provides events and subscriptions. Event messages are created with a key/value pair using `NewEvent`, or an error with `NewError`. Events can be emitted on a channel using the `Emit` method, which returns false if the channel is full.

In order to make an existing instance able to emit events, embed a `PubSub` instance within the instance, and set the `Cap` value to the capacity required. For example,

type Task struct {
	event.PubSub
}

func NewTaskWithCapacity(cap int) Task {
	task := new(Task)
	task.Cap = cap
	return task
}