Is used . table 6 . mapping table for duplicating file handles 表6 .复制文件句柄的映射表
Duplicating file handles 复制文件句柄
There are two ways to duplicate file descriptors : a new handle is allocated , or some known handle is used as a new handle 有两种方法可以复制文件句柄:重新分配一个新句柄,或者将原来的一个已知句柄用作一个新句柄。