librb/include/rb_linebuf.h

   1 /*
   2  *  ircd-ratbox: A slightly useful ircd.
   3  *  linebuf.h: A header for the linebuf code.
   4  *
   5  *  Copyright (C) 1990 Jarkko Oikarinen and University of Oulu, Co Center
   6  *  Copyright (C) 1996-2002 Hybrid Development Team
   7  *  Copyright (C) 2002-2005 ircd-ratbox development team
   8  *
   9  *  This program is free software; you can redistribute it and/or modify
  10  *  it under the terms of the GNU General Public License as published by
  11  *  the Free Software Foundation; either version 2 of the License, or
  12  *  (at your option) any later version.
  13  *
  14  *  This program is distributed in the hope that it will be useful,
  15  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17  *  GNU General Public License for more details.
  18  *
  19  *  You should have received a copy of the GNU General Public License
  20  *  along with this program; if not, write to the Free Software
  21  *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301
  22  *  USA
  23  *
  24  */
  25
  26 #ifndef RB_LIB_H
  27 # error "Do not use linebuf.h directly"
  28 #endif
  29
  30 #ifndef __LINEBUF_H__
  31 #define __LINEBUF_H__
  32
  33 #define LINEBUF_COMPLETE        0
  34 #define LINEBUF_PARTIAL         1
  35 #define LINEBUF_PARSED          0
  36 #define LINEBUF_RAW             1
  37
  38 struct _buf_line;
  39 struct _buf_head;
  40
  41 /* IRCv3 tags (512 bytes) + RFC1459 message (510 bytes) */
  42 #define LINEBUF_TAGSLEN         512     /* IRCv3 message tags */
  43 #define LINEBUF_DATALEN         510     /* RFC1459 message data */
  44 #define LINEBUF_SIZE            (512 + 510)
  45 #define CRLF_LEN                2
  46
  47 typedef struct _buf_line
  48 {
  49         char buf[LINEBUF_SIZE + CRLF_LEN + 1];
  50         uint8_t terminated;     /* Whether we've terminated the buffer */
  51         uint8_t raw;            /* Whether this linebuf may hold 8-bit data */
  52         int len;                /* How much data we've got */
  53         int refcount;           /* how many linked lists are we in? */
  54 } buf_line_t;
  55
  56 typedef struct _buf_head
  57 {
  58         rb_dlink_list list;     /* the actual dlink list */
  59         int len;                /* length of all the data */
  60         int alloclen;           /* Actual allocated data length */
  61         int writeofs;           /* offset in the first line for the write */
  62         int numlines;           /* number of lines */
  63 } buf_head_t;
  64
  65 /* they should be functions, but .. */
  66 #define rb_linebuf_len(x)               ((x)->len)
  67 #define rb_linebuf_alloclen(x)  ((x)->alloclen)
  68 #define rb_linebuf_numlines(x)  ((x)->numlines)
  69
  70 void rb_linebuf_init(size_t heap_size);
  71 void rb_linebuf_newbuf(buf_head_t *);
  72 void rb_linebuf_donebuf(buf_head_t *);
  73 int rb_linebuf_parse(buf_head_t *, char *, int, int);
  74 int rb_linebuf_get(buf_head_t *, char *, int, int, int);
  75 void rb_linebuf_put(buf_head_t *, const rb_strf_t *);
  76 void rb_linebuf_attach(buf_head_t *, buf_head_t *);
  77 void rb_count_rb_linebuf_memory(size_t *, size_t *);
  78 int rb_linebuf_flush(rb_fde_t *F, buf_head_t *);
  79
  80
  81 #endif