Module: FiberedMysql2::FiberedMysql2Adapter_5_2

Defined in:
lib/active_record/connection_adapters/fibered_mysql2_adapter.rb

Instance Method Summary collapse

Instance Method Details

#expire ⇒ Object 



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# File 'lib/active_record/connection_adapters/fibered_mysql2_adapter.rb', line 35

def expire
  if in_use?
    # Because we are actively releasing connections from dead fibers, we only want
    # to enforce that we're expiring the current fibers connection, iff the owner
    # of the connection is still alive.
    if owner_fiber.alive? && owner_fiber != Fiber.current
      raise ::ActiveRecord::ActiveRecordError, "Cannot expire connection, " \
        "it is owned by a different fiber: #{owner_fiber}. " \
        "Current fiber: #{Fiber.current}."
    end

    @idle_since = ::Concurrent.monotonic_time
    @owner = nil
  else
    raise ::ActiveRecord::ActiveRecordError, "Cannot expire connection, it is not currently leased."
  end
end

#lease ⇒ Object 



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# File 'lib/active_record/connection_adapters/fibered_mysql2_adapter.rb', line 20

def lease
  if in_use?
    msg = "Cannot lease connection, ".dup
    if owner_fiber == Fiber.current
      msg << "it is already leased by the current fiber."
    else
      msg << "it is already in use by a different fiber: #{owner_fiber}. " \
              "Current fiber: #{Fiber.current}."
    end
    raise ::ActiveRecord::ActiveRecordError, msg
  end

  @owner = Fiber.current
end

#steal! ⇒ Object 



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# File 'lib/active_record/connection_adapters/fibered_mysql2_adapter.rb', line 53

def steal!
  if in_use?
    if owner_fiber != Fiber.current
      pool.send :remove_connection_from_thread_cache, self, owner_fiber

      @owner = Fiber.current
    end
  else
    raise ::ActiveRecord::ActiveRecordError, "Cannot steal connection, it is not currently leased."
  end
end