Process file resource
1、本文讨论process占用的file resource
2、由于Linux使用"everything is a file",因此,本文描述的file还包括:
b、pipe
c、......
NOTE: 关于此,参见wikipedia File descriptor
3、由于Linux使用"everything is a file",因此,本文描述的"data structures used by the kernel for all I/O"
NOTE:
1、"data structures used by the kernel for all I/O" 是源自 APUE3.10 File Sharing