A base class for ostreams that write to a (possibly non-blocking) socket. It adds
isClosed(), which can be called after any write operation fails to check whether the socket has been closed, or whether more data may be sent later.
close() → None¶
flush() → bool¶
Sends the most recently queued data now. This only has meaning if set_collect_tcp() has been set to true.
isClosed() → bool¶