class Concurrent::SafeTaskExecutor

reason - the error risen by the callable if it has been executed with errors, nil otherwise
value - filled by the callable result if it has been executed without errors, nil otherwise
success - indicating if the callable has been executed without errors
A simple utility class that executes a callable and returns and array of three elements:

def execute(*args)

Returns:
  • (Array) - 
def execute(*args)
  success = true
  value   = reason = nil
  synchronize do
    begin
      value   = @task.call(*args)
      success = true
    rescue @exception_class => ex
      reason  = ex
      success = false
    end
  end
  [success, value, reason]
end

def initialize(task, opts = {}) 

def initialize(task, opts = {})
  @task            = task
  @exception_class = opts.fetch(:rescue_exception, false) ? Exception : StandardError
  super() # ensures visibility
end