% according to the code this should work
ok = socket:send(Socket, Data, [], nowait)

=ERROR REPORT==== 5-Jul-2019::12:52:06.740284 ===
Error in process <0.76.0> with exit value:
{badarith,[{erlang,'-',[nowait,0],[]},
           {socket,next_timeout,2,[]},
           {socket,do_send,4,[]},
           {hammer2,send,1,[{file,"hammer2.erl"},{line,25}]}]}