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
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
|
/*
*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*
*/
namespace org.apache.qpid.transport.util
{
/// <summary>
/// This class provides basic serial number comparisons as defined in
/// RFC 1982.
/// </summary>
public class Serial
{
///
///
///Compares two numbers using serial arithmetic.
///
/// param s1 the first serial number
/// param s2 the second serial number
///
/// return a negative integer, zero, or a positive integer as the
/// first argument is less than, equal to, or greater than the
/// second
///
public static int Compare(int s1, int s2)
{
return s1 - s2;
}
public static bool Lt(int s1, int s2)
{
return Compare(s1, s2) < 0;
}
public static bool Le(int s1, int s2)
{
return Compare(s1, s2) <= 0;
}
public static bool Gt(int s1, int s2)
{
return Compare(s1, s2) > 0;
}
public static bool Ge(int s1, int s2)
{
return Compare(s1, s2) >= 0;
}
public static bool Eq(int s1, int s2)
{
return s1 == s2;
}
public static int Min(int s1, int s2)
{
if (Lt(s1, s2))
{
return s1;
}
else
{
return s2;
}
}
public static int Max(int s1, int s2)
{
if (Gt(s1, s2))
{
return s1;
}
else
{
return s2;
}
}
}
}
|
