1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
|
/*
* Copyright (C) 2004, 2005, 2007 Internet Systems Consortium, Inc. ("ISC")
* Copyright (C) 1999-2001 Internet Software Consortium.
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
* REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
* AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
* INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
* LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
* OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
* PERFORMANCE OF THIS SOFTWARE.
*/
/* $Id: bufferlist.c,v 1.17 2007/06/19 23:47:17 tbox Exp $ */
/*! \file */
#include <config.h>
#include <stddef.h>
#include <isc/buffer.h>
#include <isc/bufferlist.h>
#include <isc/util.h>
unsigned int
isc_bufferlist_usedcount(isc_bufferlist_t *bl) {
isc_buffer_t *buffer;
unsigned int length;
REQUIRE(bl != NULL);
length = 0;
buffer = ISC_LIST_HEAD(*bl);
while (buffer != NULL) {
REQUIRE(ISC_BUFFER_VALID(buffer));
length += isc_buffer_usedlength(buffer);
buffer = ISC_LIST_NEXT(buffer, link);
}
return (length);
}
unsigned int
isc_bufferlist_availablecount(isc_bufferlist_t *bl) {
isc_buffer_t *buffer;
unsigned int length;
REQUIRE(bl != NULL);
length = 0;
buffer = ISC_LIST_HEAD(*bl);
while (buffer != NULL) {
REQUIRE(ISC_BUFFER_VALID(buffer));
length += isc_buffer_availablelength(buffer);
buffer = ISC_LIST_NEXT(buffer, link);
}
return (length);
}
|
