29 lines
813 B
C
29 lines
813 B
C
#include "fsinstance.h"
|
|
|
|
// TODO: CHECK/REPLACE/UPDATE OLD CODE (this file is based on xv6)
|
|
struct file {
|
|
enum { FD_NONE, FD_PIPE, FD_INODE, FD_DEVICE, FD_KQUEUE } type;
|
|
int ref; // reference count
|
|
char readable;
|
|
char writable; // NOTE: This is now set to 2 for append
|
|
struct pipe *pipe; // FD_PIPE
|
|
fsinstance_inode_t *ip; // FD_INODE and FD_DEVICE
|
|
uint off; // FD_INODE
|
|
short major; // FD_DEVICE
|
|
};
|
|
|
|
// These cause warnings as conflicts with non-macro uses of the words
|
|
//#define major(dev) ((dev) >> 16 & 0xFFFF)
|
|
//#define minor(dev) ((dev) & 0xFFFF)
|
|
#define mkdev(m,n) ((uint)((m)<<16| (n)))
|
|
|
|
// map major device number to device functions.
|
|
struct devsw {
|
|
int (*read)(int, uint64, int);
|
|
int (*write)(int, uint64, int);
|
|
};
|
|
|
|
extern struct devsw devsw[];
|
|
|
|
#define CONSOLE 1
|