LCOV - code coverage report
Current view: top level - include/linux - tty_flip.h (source / functions) Hit Total Coverage
Test: landlock.info Lines: 0 12 0.0 %
Date: 2021-04-22 12:43:58 Functions: 0 1 0.0 %

          Line data    Source code
       1             : /* SPDX-License-Identifier: GPL-2.0 */
       2             : #ifndef _LINUX_TTY_FLIP_H
       3             : #define _LINUX_TTY_FLIP_H
       4             : 
       5             : extern int tty_buffer_set_limit(struct tty_port *port, int limit);
       6             : extern int tty_buffer_space_avail(struct tty_port *port);
       7             : extern int tty_buffer_request_room(struct tty_port *port, size_t size);
       8             : extern int tty_insert_flip_string_flags(struct tty_port *port,
       9             :                 const unsigned char *chars, const char *flags, size_t size);
      10             : extern int tty_insert_flip_string_fixed_flag(struct tty_port *port,
      11             :                 const unsigned char *chars, char flag, size_t size);
      12             : extern int tty_prepare_flip_string(struct tty_port *port,
      13             :                 unsigned char **chars, size_t size);
      14             : extern void tty_flip_buffer_push(struct tty_port *port);
      15             : void tty_schedule_flip(struct tty_port *port);
      16             : int __tty_insert_flip_char(struct tty_port *port, unsigned char ch, char flag);
      17             : 
      18           0 : static inline int tty_insert_flip_char(struct tty_port *port,
      19             :                                         unsigned char ch, char flag)
      20             : {
      21           0 :         struct tty_buffer *tb = port->buf.tail;
      22           0 :         int change;
      23             : 
      24           0 :         change = (tb->flags & TTYB_NORMAL) && (flag != TTY_NORMAL);
      25           0 :         if (!change && tb->used < tb->size) {
      26           0 :                 if (~tb->flags & TTYB_NORMAL)
      27           0 :                         *flag_buf_ptr(tb, tb->used) = flag;
      28           0 :                 *char_buf_ptr(tb, tb->used++) = ch;
      29           0 :                 return 1;
      30             :         }
      31           0 :         return __tty_insert_flip_char(port, ch, flag);
      32             : }
      33             : 
      34           0 : static inline int tty_insert_flip_string(struct tty_port *port,
      35             :                 const unsigned char *chars, size_t size)
      36             : {
      37           0 :         return tty_insert_flip_string_fixed_flag(port, chars, TTY_NORMAL, size);
      38             : }
      39             : 
      40             : extern void tty_buffer_lock_exclusive(struct tty_port *port);
      41             : extern void tty_buffer_unlock_exclusive(struct tty_port *port);
      42             : 
      43             : #endif /* _LINUX_TTY_FLIP_H */

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