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require 'concurrent/executor/abstract_executor_service'
require 'concurrent/atomic/event'
module Concurrent
# @!macro abstract_executor_service_public_api
# @!visibility private
class RubyExecutorService < AbstractExecutorService
safe_initialization!
def initialize(*args, &block)
super
@StopEvent = Event.new
@StoppedEvent = Event.new
end
def post(*args, &task)
raise ArgumentError.new('no block given') unless block_given?
deferred_action = synchronize {
if running?
ns_execute(*args, &task)
else
fallback_action(*args, &task)
end
}
if deferred_action
deferred_action.call
else
true
end
end
def shutdown
synchronize do
break unless running?
stop_event.set
ns_shutdown_execution
end
true
end
def kill
synchronize do
break if shutdown?
stop_event.set
ns_kill_execution
stopped_event.set
end
true
end
def wait_for_termination(timeout = nil)
stopped_event.wait(timeout)
end
private
def stop_event
@StopEvent
end
def stopped_event
@StoppedEvent
end
def ns_shutdown_execution
stopped_event.set
end
def ns_running?
!stop_event.set?
end
def ns_shuttingdown?
!(ns_running? || ns_shutdown?)
end
def ns_shutdown?
stopped_event.set?
end
end
end
|
