src/add-ons/kernel/drivers/tty/line_buffer.h

   1 /*
   2 ** Copyright 2004, Axel Dörfler, axeld@pinc-software.de. All rights reserved.
   3 ** Distributed under the terms of the Haiku License.
   4 */
   5 #ifndef LINE_BUFFER_H
   6 #define LINE_BUFFER_H
   7
   8
   9 #include <OS.h>
  10
  11
  12 struct line_buffer {
  13         int32   first;
  14         size_t  in;
  15         size_t  size;
  16         char    *buffer;
  17 };
  18
  19 status_t init_line_buffer(struct line_buffer &buffer, size_t size);
  20 status_t uninit_line_buffer(struct line_buffer &buffer);
  21 status_t clear_line_buffer(struct line_buffer &buffer);
  22 int32 line_buffer_readable(struct line_buffer &buffer);
  23 int32 line_buffer_readable_line(struct line_buffer &buffer, char eol, char eof);
  24 int32 line_buffer_writable(struct line_buffer &buffer);
  25 ssize_t line_buffer_user_read(struct line_buffer &buffer, char *data,
  26                         size_t length, char eof = 0, bool* hitEOF = NULL);
  27 status_t line_buffer_getc(struct line_buffer &buffer, char *_c);
  28 status_t line_buffer_putc(struct line_buffer &buffer, char c);
  29 status_t line_buffer_ungetc(struct line_buffer &buffer, char *c);
  30 bool line_buffer_tail_getc(struct line_buffer &buffer, char *c);
  31
  32 #endif  /* LINE_BUFFER_H */