如果在初始化连接之前，客户端进程没有显式发布bind系统调用，则堆栈负责本地套接字上的隐式绑定。

If the client process has not explicitly issued a bind system call before initiating the connection, implicit binding on the local socket is taken care of by the stack.

youdao

bind调用将进程指定的本地地址复制到mbuf，并调用sobind，后者则根据请求使用PRU_BIND调用tcp_usrreq 。

The bind call copies the local address specified by the process into an mbuf and calls sobind, which in turn calls tcp_usrreq with PRU_BIND as the request.

youdao

本地客户端与服务器的通讯是通过直接的函数调用和消息队列，因为他们在同一个进程中。

The LocalClient communicates with the (local) server through direct function calls and message queues, since it is in the same process.

youdao

本地客户端与服务器的通讯是通过直接的函数调用和消息队列，因为他们在同一个进程中。

The LocalClient communicates with the (local) server through direct function calls and message queues, since it is in the same process.

youdao