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-rw-r--r--OpenSim/Grid/Manager/OpenGridServices.Manager/Util.cs133
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diff --git a/OpenSim/Grid/Manager/OpenGridServices.Manager/Util.cs b/OpenSim/Grid/Manager/OpenGridServices.Manager/Util.cs
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1using System;
2using System.Collections.Generic;
3using System.Text;
4using libsecondlife;
5using libsecondlife.Packets;
6
7namespace OpenSim.Framework.Utilities
8{
9 public class Util
10 {
11 private static Random randomClass = new Random();
12 private static uint nextXferID = 5000;
13 private static object XferLock = new object();
14
15 public static ulong UIntsToLong(uint X, uint Y)
16 {
17 return Helpers.UIntsToLong(X, Y);
18 }
19
20 public static Random RandomClass
21 {
22 get
23 {
24 return randomClass;
25 }
26 }
27
28 public static uint GetNextXferID()
29 {
30 uint id = 0;
31 lock(XferLock)
32 {
33 id = nextXferID;
34 nextXferID++;
35 }
36 return id;
37 }
38
39 //public static int fast_distance2d(int x, int y)
40 //{
41 // x = System.Math.Abs(x);
42 // y = System.Math.Abs(y);
43
44 // int min = System.Math.Min(x, y);
45
46 // return (x + y - (min >> 1) - (min >> 2) + (min >> 4));
47 //}
48
49 public static string FieldToString(byte[] bytes)
50 {
51 return FieldToString(bytes, String.Empty);
52 }
53
54 /// <summary>
55 /// Convert a variable length field (byte array) to a string, with a
56 /// field name prepended to each line of the output
57 /// </summary>
58 /// <remarks>If the byte array has unprintable characters in it, a
59 /// hex dump will be put in the string instead</remarks>
60 /// <param name="bytes">The byte array to convert to a string</param>
61 /// <param name="fieldName">A field name to prepend to each line of output</param>
62 /// <returns>An ASCII string or a string containing a hex dump, minus
63 /// the null terminator</returns>
64 public static string FieldToString(byte[] bytes, string fieldName)
65 {
66 // Check for a common case
67 if (bytes.Length == 0) return String.Empty;
68
69 StringBuilder output = new StringBuilder();
70 bool printable = true;
71
72 for (int i = 0; i < bytes.Length; ++i)
73 {
74 // Check if there are any unprintable characters in the array
75 if ((bytes[i] < 0x20 || bytes[i] > 0x7E) && bytes[i] != 0x09
76 && bytes[i] != 0x0D && bytes[i] != 0x0A && bytes[i] != 0x00)
77 {
78 printable = false;
79 break;
80 }
81 }
82
83 if (printable)
84 {
85 if (fieldName.Length > 0)
86 {
87 output.Append(fieldName);
88 output.Append(": ");
89 }
90
91 if (bytes[bytes.Length - 1] == 0x00)
92 output.Append(UTF8Encoding.UTF8.GetString(bytes, 0, bytes.Length - 1));
93 else
94 output.Append(UTF8Encoding.UTF8.GetString(bytes));
95 }
96 else
97 {
98 for (int i = 0; i < bytes.Length; i += 16)
99 {
100 if (i != 0)
101 output.Append(Environment.NewLine);
102 if (fieldName.Length > 0)
103 {
104 output.Append(fieldName);
105 output.Append(": ");
106 }
107
108 for (int j = 0; j < 16; j++)
109 {
110 if ((i + j) < bytes.Length)
111 output.Append(String.Format("{0:X2} ", bytes[i + j]));
112 else
113 output.Append(" ");
114 }
115
116 for (int j = 0; j < 16 && (i + j) < bytes.Length; j++)
117 {
118 if (bytes[i + j] >= 0x20 && bytes[i + j] < 0x7E)
119 output.Append((char)bytes[i + j]);
120 else
121 output.Append(".");
122 }
123 }
124 }
125
126 return output.ToString();
127 }
128 public Util()
129 {
130
131 }
132 }
133}