The system call interface can be described from two perspectives.
系统调用接口可以从两个角度进行描述。
At the top is the system call interface, which implements the basic functions such as read and write.
最上面是系统调用接口，它实现了一些基本的功能，例如read和write。
The Linux system call interface provides the means for user-space applications to invoke kernel functionality.
Linux系统调用接口提供了用户空间应用程序调用内核功能的方法。
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