include/linux/tty_flip.h

   1 #ifndef _LINUX_TTY_FLIP_H
   2 #define _LINUX_TTY_FLIP_H
   3
   4 extern int tty_buffer_request_room(struct tty_struct *tty, size_t size);
   5 extern int tty_insert_flip_string(struct tty_struct *tty, unsigned char *chars, size_t size);
   6 extern int tty_insert_flip_string_flags(struct tty_struct *tty, unsigned char *chars, char *flags, size_t size);
   7 extern int tty_prepare_flip_string(struct tty_struct *tty, unsigned char **chars, size_t size);
   8 extern int tty_prepare_flip_string_flags(struct tty_struct *tty, unsigned char **chars, char **flags, size_t size);
   9
  10 #ifdef INCLUDE_INLINE_FUNCS
  11 #define _INLINE_ extern
  12 #else
  13 #define _INLINE_ static __inline__
  14 #endif
  15
  16 _INLINE_ int tty_insert_flip_char(struct tty_struct *tty,
  17                                    unsigned char ch, char flag)
  18 {
  19         struct tty_buffer *tb = tty->buf.tail;
  20         if (tb && tb->used < tb->size) {
  21                 tb->flag_buf_ptr[tb->used] = flag;
  22                 tb->char_buf_ptr[tb->used++] = ch;
  23                 return 1;
  24         }
  25         return tty_insert_flip_string_flags(tty, &ch, &flag, 1);
  26 }
  27
  28 _INLINE_ void tty_schedule_flip(struct tty_struct *tty)
  29 {
  30         schedule_delayed_work(&tty->buf.work, 1);
  31 }
  32
  33 #undef _INLINE_
  34
  35
  36 #endif /* _LINUX_TTY_FLIP_H */
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