V2EX datagram-socket

Datagram Socket

释义 Definition

数据报套接字:一种面向无连接通信的套接字类型,通常基于 UDP。它以“数据报(datagram)”为单位发送与接收消息,强调消息边界保留(一次发送对应一次接收),但一般不保证送达、顺序或不重复。

发音 Pronunciation (IPA)

/detrm skt/(英式)
/detrm skt/(美式)

例句 Examples

She opened a datagram socket to send a quick message.
她打开了一个数据报套接字来发送一条快速消息。

Using a datagram socket, the app can broadcast updates to multiple devices, but it must handle packet loss and reordering itself.
使用数据报套接字,应用可以向多台设备广播更新,但必须自行处理丢包与乱序问题。

词源 Etymology

datagram 来自 data(数据)+ -gram(“写下的东西/记录”,源自希腊语 gramma),在网络语境中指“独立的消息单元”。socket 原意是“插座/插口”,在计算机中引申为“通信端点”。合起来 datagram socket 指“以数据报为单位进行通信的端点”。

相关词 Related Words

文献与作品 Literary / Notable Works

  • UNIX Network Programming(W. Richard Stevens):系统讲解 UDP 与 datagram sockets 的 API 与编程模式。
  • Beej’s Guide to Network Programming(Beej):以入门方式介绍 datagram socket(UDP)与示例代码。
  • The Linux Programming Interface(Michael Kerrisk):在网络章节中讨论 UDP/数据报套接字的行为与系统调用。
  • RFC 768 *User Datagram Protocol (UDP)*:UDP 协议的规范文本,常与“datagram socket”概念配套出现。
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