write abstract method
Writes up to count bytes of the buffer from offset buffer offset to
the socket.
The number of successfully written bytes is returned. This function is
non-blocking and will only write data if buffer space is available in
the socket. This means that the number of successfully written bytes may
be less than count or even 0.
Transmission of the buffer may be delayed unless SocketOption.tcpNoDelay is set with RawSocket.setOption.
The default value for offset is 0, and the default value for count is
buffer.length - offset.
Implementation
int write(List<int> buffer, [int offset = 0, int? count]);