libseven/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) 2002-2004 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., 59 Temple Place, Suite 330, Boston, MA  02111-1307
  22  *  USA
  23  *
  24  *  $Id: linebuf.h 26 2006-09-20 18:02:06Z spb $
  25  */
  26
  27 #ifndef __LINEBUF_H__
  28 #define __LINEBUF_H__
  29
  30 #include "tools.h"
  31
  32 /* How big we want a buffer - 510 data bytes, plus space for a '\0' */
  33 #define BUF_DATA_SIZE           511
  34
  35 #define LINEBUF_COMPLETE        0
  36 #define LINEBUF_PARTIAL         1
  37 #define LINEBUF_PARSED          0
  38 #define LINEBUF_RAW             1
  39
  40 struct _buf_line;
  41 struct _buf_head;
  42
  43 typedef struct _buf_line buf_line_t;
  44 typedef struct _buf_head buf_head_t;
  45
  46 struct _buf_line
  47 {
  48         char buf[BUF_DATA_SIZE + 2];
  49         unsigned int terminated;        /* Whether we've terminated the buffer */
  50         unsigned int flushing;  /* Whether we're flushing .. */
  51         unsigned int 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         struct _buf_line *next; /* next in free list */
  55 };
  56
  57 struct _buf_head
  58 {
  59         dlink_list list;        /* the actual dlink list */
  60         int len;                /* length of all the data */
  61         int alloclen;           /* Actual allocated data length */
  62         int writeofs;           /* offset in the first line for the write */
  63         int numlines;           /* number of lines */
  64 };
  65
  66 /* they should be functions, but .. */
  67 #define linebuf_len(x)          ((x)->len)
  68 #define linebuf_alloclen(x)     ((x)->alloclen)
  69 #define linebuf_numlines(x)     ((x)->numlines)
  70
  71 extern void linebuf_init(void);
  72 /* declared as static */
  73 /* extern buf_line_t *linebuf_new_line(buf_head_t *); */
  74 /* extern void linebuf_done_line(buf_head_t *, buf_line_t *, dlink_node *); */
  75 /* extern int linebuf_skip_crlf(char *, int); */
  76 /* extern void linebuf_terminate_crlf(buf_head_t *, buf_line_t *); */
  77 extern void linebuf_newbuf(buf_head_t *);
  78 extern void client_flush_input(struct Client *);
  79 extern void linebuf_donebuf(buf_head_t *);
  80 extern int linebuf_parse(buf_head_t *, char *, int, int);
  81 extern int linebuf_get(buf_head_t *, char *, int, int, int);
  82 extern void linebuf_putmsg(buf_head_t *, const char *, va_list *, const char *, ...);
  83 extern int linebuf_flush(int, buf_head_t *);
  84 extern void linebuf_attach(buf_head_t *, buf_head_t *);
  85 extern void count_linebuf_memory(size_t *, size_t *);
  86 #endif