1 /* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
3 * Authors: Jeffrey Stedfast <fejj@ximian.com>
5 * Copyright 2003 Ximian, Inc. (www.ximian.com)
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 2 of the License, or
10 * (at your option) any later version.
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
32 #include <sys/types.h>
42 parser_init (Parser
*parser
, int fd
)
44 parser
->inbuf
= parser
->realbuf
+ PARSER_SCAN_HEAD
;
45 parser
->inptr
= parser
->inbuf
;
46 parser
->inend
= parser
->inbuf
;
53 parser_fill (Parser
*parser
)
55 unsigned char *inbuf
, *inptr
, *inend
;
59 inbuf
= parser
->inbuf
;
60 inptr
= parser
->inptr
;
61 inend
= parser
->inend
;
62 inlen
= inend
- inptr
;
64 g_assert (inptr
<= inend
);
66 /* attempt to align 'inend' with realbuf + PARSER_SCAN_HEAD */
68 inbuf
-= inlen
< PARSER_SCAN_HEAD
? inlen
: PARSER_SCAN_HEAD
;
69 memmove (inbuf
, inptr
, inlen
);
72 } else if (inptr
> parser
->realbuf
) {
75 shift
= MIN (inptr
- parser
->realbuf
, inend
- inbuf
);
76 memmove (inptr
- shift
, inptr
, inlen
);
78 inbuf
= inptr
+ inlen
;
80 /* we can't shift... */
84 parser
->inptr
= inptr
;
85 parser
->inend
= inbuf
;
86 inend
= parser
->realbuf
+ PARSER_SCAN_HEAD
+ PARSER_SCAN_BUF
- 1;
88 if ((nread
= vg_read (parser
->fd
, (char *)inbuf
, inend
- inbuf
)) == -1)
91 parser
->inend
+= nread
;
93 return parser
->inend
- parser
->inptr
;