close.c

操作系统实验,文件系统,c语言实现的

#include <stdio.h>

#include "filesys.h"

close(user_id,cfd)    /*close*/

unsigned int user_id;

unsigned short cfd;

{

   struct inode  *inode;

   inode=sys_ofile[user[user_id].u_ofile[cfd]].f_inode;

   iput(inode);

   sys_ofile[user[user_id].u_ofile[cfd]].f_count --;

   user[user_id].u_ofile[cfd]=SYSOPENFILE+1;

}