套接字:非阻塞关机(SHUT_WR)? [英] Sockets: Non-blocking shutdown(SHUT_WR)?

问题描述

有没有办法异步关闭套接字(SHUT_WR)?

Is there a way to do shutdown(SHUT_WR) on socket asynchronously?

即启动操作，然后使用 poll 等待操作完成?

I.e. start the operation, then wait for its completion using poll?

推荐答案

无论如何它都是异步的.它只是在套接字发送缓冲区的当前内容后面排队一个 FIN，如果有的话，这实际上只是在某处设置了一点.没有用于完成任何发送的 poll() 操作，更不用说这个了.

It's asynchronous anyway. It just queues a FIN behind the current contents of the socket send buffer, if any, which really just amounts to setting a bit somewhere. There's no poll() operation for completion of any send, let alone this one.

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