在哪里可以找到选择()源$ C $在glibc的C源? [英] where to find select() source code in glibc source?
问题描述
我试图找到glibc的源$ C $ C选择()源$ C $ C(Linux操作系统,i386的弓),
但我无法找到任何(与该架构)
可能有人点我的选择()源$ C $ C?
选择()不是libc中的功能,但是内核函数,所以你需要看看到内核源代码。
您可以通过查看手册页告诉这一点:如果是在第2节,这是一个内核函数,如果是在第3节,这是标准C库的函数,你的情况glibc的。
编辑:像其他人说正确(谢谢!),在第2节中描述的功能被正式称为的系统调用的,它实际上是一个库调用封装了操作系统实际的调用接口。
i am trying to find the select() source code (linux, i386 arch) in the glibc source code, but i cannot find anything (related to the said architecture)
Could anybody point me to the select() source code ?
select() is not a function of the libc, but a kernel function, so you need to take a look into the kernel source.
You can tell this by looking into the man page: If it is in section 2, it's a kernel function, if it's in section 3, it's a function of the standard C library, in your case the glibc.
Edit: Like some other people remarked correctly (thank you!), a function described in section 2 is officially called a system call and it is actually a call to a library that wraps the operating system's actual call interface.
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