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#define HYPERIO_MAXNUM 256
#define HYPERIO_FILP_HTSIZE 1009
struct hyperio_info{
atomic_t ref_count;
struct hlist_node node;
struct file *filp;
struct tty_port port;
bool create_flag;
bool end_flag;
struct file_operations *hook_fops;
const struct file_operations *old_fops;
atomic64_t read_remain;
off_t read_off;
char *read_buf;
struct completion read_rwait;
struct completion read_wwait;
atomic64_t write_remain;
off_t write_off;
char *write_buf;
struct completion write_rwait;
struct completion write_wwait;
};
static inline struct hyperio_info* hyperio_filp_lookup(struct file *filp);
static int hyperio_tty_open(struct tty_struct * tty, struct file * filp);
static void hyperio_tty_close(struct tty_struct * tty, struct file * filp);
static int hyperio_tty_write(struct tty_struct *tty,const unsigned char *buf,int count);
static int hyperio_tty_write_room(struct tty_struct *tty);
static ssize_t hyperio_tty_filpread(struct file *filp,char __user *buf,size_t count,loff_t *off);
static ssize_t hyperio_tty_filpwrite(struct file *filp,const char __user *buf,size_t count,loff_t *off);
static struct tty_driver *hyperio_tty_drv;
static struct tty_operations hyperio_tops = {
.open = hyperio_tty_open,
.close = hyperio_tty_close,
.write = hyperio_tty_write,
.write_room = hyperio_tty_write_room
};
static struct hyperio_info *hyperio_table;
static struct hlist_head *hyperio_filp_ht;
static DEFINE_SPINLOCK(hyperio_filp_htlock);
int judgk_hyperio_init(void);
int judgk_hyperio_exit(void);
int judgk_hyperio_add(struct file *filp);
int judgk_hyperio_read(struct file *filp,size_t len);
int judgk_hyperio_write(struct file *filp,size_t len);
int judgk_hyperio_del(struct file *filp);
int judgk_hyperio_mmap(struct file *filp,struct vm_area_struct *vma);
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