UNIX网络编程 fb2 免费 lrf 下载 kindle azw3 pdf 阿里云

暂无相关简介，正在全力查找中！

暂无相关目录，正在全力查找中！

暂无相关内容，正在全力查找中

暂无出版社相关信息，正在全力查找中！

暂无相关书籍摘录，正在全力查找中！

在线阅读地址：UNIX网络编程在线阅读

在线听书地址：UNIX网络编程在线收听

在线购买地址：UNIX网络编程在线购买

There are two reasons for the TIME_WAIT state:

1. To implement TCP's full-duplex connection termination reliably.

2. To allow old duplicate segments to expire in the network.

既然发生错误时终止程序的运行是普遍的情况,我们可以定义包裹函数(wrapper function)来简化我们的程序。包裹函数调用实际函数,检查返回值,并在发生错误时终止进程。

int

Socket(int family, int type, int protocol)

{

int n;

if ( (n = socket(family, type, protocol)) < 0)

err_sys("socket error");

return(n);

}

even though addr is a char*, you actually want to pass in a pointer to a struct in_addr.

If we refer to a service by its name in our code, instead of by its port number, and if the mapping from the name to port number is contained in a file (normally /etc/services), then if the port number changes, all we need to modify is one line in the /etc/services file instead of having to recompile the applications. The next function, getservbyname, looks up a service given its name.

如果有多个客户连接同时到达，系统内核在最大数目的限制下把它们排入队列，然后每次返回一个给accept函数

网际协议簇，在TCP与UDP之间留有一个间隙，指出应用程序可以绕过传输层而直接使用IPv4或Ipv6，称为raw socket

暂无其它内容！