tty_flip.h 966 B

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  1. #ifndef _LINUX_TTY_FLIP_H
  2. #define _LINUX_TTY_FLIP_H
  3. extern int tty_buffer_request_room(struct tty_struct *tty, size_t size);
  4. extern int tty_insert_flip_string(struct tty_struct *tty, const unsigned char *chars, size_t size);
  5. extern int tty_insert_flip_string_flags(struct tty_struct *tty, const unsigned char *chars, const char *flags, size_t size);
  6. extern int tty_prepare_flip_string(struct tty_struct *tty, unsigned char **chars, size_t size);
  7. extern int tty_prepare_flip_string_flags(struct tty_struct *tty, unsigned char **chars, char **flags, size_t size);
  8. void tty_schedule_flip(struct tty_struct *tty);
  9. static inline int tty_insert_flip_char(struct tty_struct *tty,
  10. unsigned char ch, char flag)
  11. {
  12. struct tty_buffer *tb = tty->buf.tail;
  13. if (tb && tb->used < tb->size) {
  14. tb->flag_buf_ptr[tb->used] = flag;
  15. tb->char_buf_ptr[tb->used++] = ch;
  16. return 1;
  17. }
  18. return tty_insert_flip_string_flags(tty, &ch, &flag, 1);
  19. }
  20. #endif /* _LINUX_TTY_FLIP_H */