DoWithTimeout performs the action as soon as the waitable is done.

IsDone checks if the given waitable's condition is fulfilled.

NewSignal creates a new signal that is in the reset state.

Wait waits indefinitely until the condition represented by the given Waitable is fulfilled.

WaitWithTimeout waits for the given Waitable with a specified timeout.

Signal implements a signalling facility.

Waitable is a generic interface for things that can be waited upon.