我具有使用调用gen_tcp插座,它应该接收使用{active, true}
,它们总是大小5(例如Command = <<"hello">>
)接收来自调用gen_tcp套接字数据的特定量
{ok, ListenSocket} = gen_tcp:listen(5555, [{active, true}, {mode, binary},
{packet, 0}]),
{ok, Socket} = gen_tcp:accept(ListenSocket),
loop().
receive() ->
{tcp, _Socket, Message:4/binary} ->
io:format("Success~n", []),
loop();
{tcp, _Socket, Other} ->
io:format("Received: ~p~n", [Other]),
loop()
end.
的但是,如果我尝试一些二进制命令下面的代码连接作为这样的客户端:
1> {ok, S} = gen_tcp:connect("localhost", 5555, []).
{ok,#Port<0.582>}
2> gen_tcp:send(S, <<"hello">>).
ok
我在接收部:
Received: {tcp,#Port<0.585>,<<"hello">>}
所以我想我的错误是在模式匹配...但在哪里?
你收到'<<"ciao"> ''当你发送'<<"hello">>'? –
ops,nope ...现在将在问题中修复 – user601836