serial.h revision 290001 
1/*
2 * Copyright (C) 2004-2007, 2009  Internet Systems Consortium, Inc. ("ISC")
3 * Copyright (C) 1999-2001  Internet Software Consortium.
4 *
5 * Permission to use, copy, modify, and/or distribute this software for any
6 * purpose with or without fee is hereby granted, provided that the above
7 * copyright notice and this permission notice appear in all copies.
8 *
9 * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
10 * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
11 * AND FITNESS.  IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
12 * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
13 * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
14 * OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
15 * PERFORMANCE OF THIS SOFTWARE.
16 */
17
18/* $Id: serial.h,v 1.18 2009/01/18 23:48:14 tbox Exp $ */
19
20#ifndef ISC_SERIAL_H
21#define ISC_SERIAL_H 1
22
23#include <isc/lang.h>
24#include <isc/types.h>
25
26/*! \file isc/serial.h
27 *	\brief Implement 32 bit serial space arithmetic comparison functions.
28 *	Note: Undefined results are returned as ISC_FALSE.
29 */
30
31/***
32 ***	Functions
33 ***/
34
35ISC_LANG_BEGINDECLS
36
37isc_boolean_t
38isc_serial_lt(isc_uint32_t a, isc_uint32_t b);
39/*%<
40 *	Return true if 'a' < 'b' otherwise false.
41 */
42
43isc_boolean_t
44isc_serial_gt(isc_uint32_t a, isc_uint32_t b);
45/*%<
46 *	Return true if 'a' > 'b' otherwise false.
47 */
48
49isc_boolean_t
50isc_serial_le(isc_uint32_t a, isc_uint32_t b);
51/*%<
52 *	Return true if 'a' <= 'b' otherwise false.
53 */
54
55isc_boolean_t
56isc_serial_ge(isc_uint32_t a, isc_uint32_t b);
57/*%<
58 *	Return true if 'a' >= 'b' otherwise false.
59 */
60
61isc_boolean_t
62isc_serial_eq(isc_uint32_t a, isc_uint32_t b);
63/*%<
64 *	Return true if 'a' == 'b' otherwise false.
65 */
66
67isc_boolean_t
68isc_serial_ne(isc_uint32_t a, isc_uint32_t b);
69/*%<
70 *	Return true if 'a' != 'b' otherwise false.
71 */
72
73ISC_LANG_ENDDECLS
74
75#endif /* ISC_SERIAL_H */
76