DNPRINTK(3,(KERN_INFO"[%p] eventpoll: sys_epoll_create(%d) = %d\n", current,size,error)); returnerror; } (1)这里用到了一个ep_getfd函数,从注释我们知道,这个函数建立eventpoll相关的file,当然,一个file要包括文件描述符、inode、还有文件对象,这也是我们传的三个参数。废话不说,看源码: /* *...
A pollset_query subroutine is called to query if a file descriptor is contained in the current poll set. A pollset is established with a successful call to pollset_create. The pollset is initially empty following this system call. Each call to pollset_create creates a new and...
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control、poll、queryサブルーチンの拡張バージョンは、拡張pollsetフォーマットのみに存在する機能を使用したいアプリケーションの消費を容易にするために存在する。 pollset_create呼び出しに成功すると、ポルセットが確立される。 こ...
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