holinhot

不会就在百度找了回答，这人起码不诚实，以后工作种也是一样。

拉几条裸光纤不就好了。同城延迟可忽略。北京上海这样估计就延迟大了

@sujin190 同样内容不用 asyncore 没有问题

二房一厅听说租金是 1500 左右 价格不贵，不过也是佛山。

@holinhot if (!val) {
if (sk->sk_state != TCP_CLOSE) {
err = -EINVAL;
break;
}
tp->window_clamp = 0;
} else
tp->window_clamp = val < SOCK_MIN_RCVBUF / 2 ?
SOCK_MIN_RCVBUF / 2 : val;
break;
2.3
if (val==0) {
if (sk->state != TCP_CLOSE) {
err = -EINVAL;
break;
}
tp->window_clamp = 0;
} else {
tp->window_clamp = val<SOCK_MIN_RCVBUF/2 ?
SOCK_MIN_SNDBUF : val;
}
break;

@lcdtyph 看了一下好像是关闭 tcp 连接时强制把 window_clamp 改为 0

@lcdtyph
不知道什么情况了
>>> s.setsockopt(IPPROTO_TCP, TCP_WINDOW_CLAMP, 1000)
>>> s.getsockopt(IPPROTO_TCP, TCP_WINDOW_CLAMP)
1152
>>>
>>> s.setsockopt(IPPROTO_TCP, TCP_WINDOW_CLAMP, 500)
>>> s.getsockopt(IPPROTO_TCP, TCP_WINDOW_CLAMP)
1152
>>> s.setsockopt(IPPROTO_TCP, TCP_WINDOW_CLAMP, 100)
>>> s.getsockopt(IPPROTO_TCP, TCP_WINDOW_CLAMP)
1152
>>> s.setsockopt(IPPROTO_TCP, TCP_WINDOW_CLAMP, 0)
>>> s.getsockopt(IPPROTO_TCP, TCP_WINDOW_CLAMP)
0

@lcdtyph
返回是 0
Type "help", "copyright", "credits" or "license" for more information.
>>> from socket import socket, IPPROTO_TCP, TCP_WINDOW_CLAMP, AF_INET, SOCK_STREAM, SOL_TCP
>>>
>>> s = socket(AF_INET, SOCK_STREAM)
>>>
>>> s.setsockopt(IPPROTO_TCP, TCP_WINDOW_CLAMP, 0)
>>>
>>> s.getsockopt(IPPROTO_TCP, TCP_WINDOW_CLAMP)
0

23:15:01.484753 IP 127.0.0.1.http > 127.0.0.1.62668: Flags [S.], seq 2645892072, ack 98484869, win 29200, options [mss 1460,nop,nop,sackOK,nop,wscale 7], length 0
23:15:01.521700 IP 127.0.0.1.http > 127.0.0.1.62668: Flags [.], ack 76, win 229, length 0

抓包还是不起作用

@lcdtyph
print(s.setsockopt(IPPROTO_TCP, TCP_WINDOW_CLAMP, 0))
None

返回是空