事件：'goaway'

¥Event: 'goaway'

• errorCode <number> GOAWAY 帧中指定的 HTTP/2 错误代码。

  ¥errorCode <number> The HTTP/2 error code specified in the GOAWAY frame.

• lastStreamID <number> 远程对等方成功处理的最后一个流的 ID（如果未指定 ID，则为 0）。

  ¥lastStreamID <number> The ID of the last stream the remote peer successfully processed (or 0 if no ID is specified).

• opaqueData <Buffer> 如果 GOAWAY 帧中包含其他不透明数据，则将传入包含该数据的 Buffer 实例。

  ¥opaqueData <Buffer> If additional opaque data was included in the GOAWAY frame, a Buffer instance will be passed containing that data.

接收到 GOAWAY 帧时触发 'goaway' 事件。

¥The 'goaway' event is emitted when a GOAWAY frame is received.

'goaway' 事件触发时，Http2Session 实例会自动关闭。

¥The Http2Session instance will be shut down automatically when the 'goaway' event is emitted.