LCOV - code coverage report
Current view: top level - include/linux - tty_flip.h (source / functions) Hit Total Coverage
Test: coverage.info Lines: 0 10 0.0 %
Date: 2023-03-27 20:00:47 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             : #include <linux/tty_buffer.h>
       6             : #include <linux/tty_port.h>
       7             : 
       8             : struct tty_ldisc;
       9             : 
      10             : int tty_buffer_set_limit(struct tty_port *port, int limit);
      11             : unsigned int tty_buffer_space_avail(struct tty_port *port);
      12             : int tty_buffer_request_room(struct tty_port *port, size_t size);
      13             : int tty_insert_flip_string_flags(struct tty_port *port,
      14             :                 const unsigned char *chars, const char *flags, size_t size);
      15             : int tty_insert_flip_string_fixed_flag(struct tty_port *port,
      16             :                 const unsigned char *chars, char flag, size_t size);
      17             : int tty_prepare_flip_string(struct tty_port *port, unsigned char **chars,
      18             :                 size_t size);
      19             : void tty_flip_buffer_push(struct tty_port *port);
      20             : int __tty_insert_flip_char(struct tty_port *port, unsigned char ch, char flag);
      21             : 
      22           0 : static inline int tty_insert_flip_char(struct tty_port *port,
      23             :                                         unsigned char ch, char flag)
      24             : {
      25           0 :         struct tty_buffer *tb = port->buf.tail;
      26             :         int change;
      27             : 
      28           0 :         change = !tb->flags && (flag != TTY_NORMAL);
      29           0 :         if (!change && tb->used < tb->size) {
      30           0 :                 if (tb->flags)
      31           0 :                         *flag_buf_ptr(tb, tb->used) = flag;
      32           0 :                 *char_buf_ptr(tb, tb->used++) = ch;
      33           0 :                 return 1;
      34             :         }
      35           0 :         return __tty_insert_flip_char(port, ch, flag);
      36             : }
      37             : 
      38             : static inline int tty_insert_flip_string(struct tty_port *port,
      39             :                 const unsigned char *chars, size_t size)
      40             : {
      41           0 :         return tty_insert_flip_string_fixed_flag(port, chars, TTY_NORMAL, size);
      42             : }
      43             : 
      44             : int tty_ldisc_receive_buf(struct tty_ldisc *ld, const unsigned char *p,
      45             :                 const char *f, int count);
      46             : 
      47             : void tty_buffer_lock_exclusive(struct tty_port *port);
      48             : void tty_buffer_unlock_exclusive(struct tty_port *port);
      49             : 
      50             : #endif /* _LINUX_TTY_FLIP_H */

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