#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