module Async
module Async::Clock
module Async::Debug
class Async::Condition
class Async::Debug::Monitor
class Async::Debug::Selector
class Async::Node
class Async::Notification
class Async::Queue
class Async::Reactor
class Async::Semaphore
class Async::Stop
class Async::Task
class Async::TimeoutError
class Async::Wrapper
class Async::Wrapper::Cancelled
class Async::Wrapper::WaitError
async
1.9.0
# closed?
def closed? @io.closed? end