filesystem2.h

操作系统课程设计

#ifndef _FILESYSTEM_H_
#define _FILESYSTEM_H_

#include <time.h>

typedef int BOOL;
#define TRUE 1
#define FALSE 0

#define MAX_USER_CNT 10
#define MAX_ST_PER_USER 10
#define MAX_OPEN_PER_USER 5

#define FILE 0
#define DIR 1

#define BLOCK_SIZE 1024		/* 每个磁盘块大小 1K */
#define MAX_BLOCK 500
#define MAX_BLOCK_PER_FILE 4

typedef struct user{
	char name[10];
	char password[10];
}user;
#define USER_SIZE (sizeof(struct user))

typedef struct d_entry{
	char name[10];
	int inode_no;
}d_entry;
#define D_ENTRY_SIZE (sizeof(struct d_entry))

typedef struct inode{
	char owner[10];
	char type;
	char mode;
	int addr[MAX_BLOCK_PER_FILE];
	int size;
	time_t create_time;
}inode;
#define INODE_SIZE (sizeof(struct inode))

typedef struct m_inode{
	struct inode in;
	int in_no;
	char dirty;
}m_inode;
#define M_INODE_SIZE (sizeof(struct m_inode))

typedef struct super_block{
	struct users[MAX_USER_CNT];
	char user_exist[MAX_USER_CNT];
}super_block;

typedef struct mfd{
	struct d_entry[MAX_USER_CNT];
	char exist[MAX_USER_CNT];
}mfd;

typedef struct ufd{
	struct d_entry[MAX_ST_PER_USER];
	char exist[MAX_ST_PER_USER];
}ufd;
#endif