linux/include/linux/tty_flip.h
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   1#ifndef _LINUX_TTY_FLIP_H
   2#define _LINUX_TTY_FLIP_H
   3
   4extern int tty_buffer_request_room(struct tty_struct *tty, size_t size);
   5extern int tty_insert_flip_string_flags(struct tty_struct *tty, const unsigned char *chars, const char *flags, size_t size);
   6extern int tty_insert_flip_string_fixed_flag(struct tty_struct *tty, const unsigned char *chars, char flag, size_t size);
   7extern int tty_prepare_flip_string(struct tty_struct *tty, unsigned char **chars, size_t size);
   8extern int tty_prepare_flip_string_flags(struct tty_struct *tty, unsigned char **chars, char **flags, size_t size);
   9void tty_schedule_flip(struct tty_struct *tty);
  10
  11static inline int tty_insert_flip_char(struct tty_struct *tty,
  12                                        unsigned char ch, char flag)
  13{
  14        struct tty_buffer *tb = tty->buf.tail;
  15        if (tb && tb->used < tb->size) {
  16                tb->flag_buf_ptr[tb->used] = flag;
  17                tb->char_buf_ptr[tb->used++] = ch;
  18                return 1;
  19        }
  20        return tty_insert_flip_string_flags(tty, &ch, &flag, 1);
  21}
  22
  23static inline int tty_insert_flip_string(struct tty_struct *tty, const unsigned char *chars, size_t size)
  24{
  25        return tty_insert_flip_string_fixed_flag(tty, chars, TTY_NORMAL, size);
  26}
  27
  28#endif /* _LINUX_TTY_FLIP_H */
  29
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