close_stream_writer¶
- async lsst.ts.tcpip.close_stream_writer(writer: StreamWriter) None¶
Close an asyncio.StreamWriter and wait for it to finish closing.
Safe to call if the stream is closed or being closed, though in the latter case this function may raise
asyncio.CancelledError.This function swallows
ConnectionError, because that means the stream writer is closed.- Parameters:
- writer
asyncio.StreamWriter Asynchronous stream writer to close.
- writer
- Raises:
asyncio.CancelledErrorIf the writer is already being closed. I am not sure if this is expected behavior or a bug in Python.