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uan-address.cc
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1 /* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
2 /*
3  * Copyright (c) 2009 University of Washington
4  *
5  * This program is free software; you can redistribute it and/or modify
6  * it under the terms of the GNU General Public License version 2 as
7  * published by the Free Software Foundation;
8  *
9  * This program is distributed in the hope that it will be useful,
10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12  * GNU General Public License for more details.
13  *
14  * You should have received a copy of the GNU General Public License
15  * along with this program; if not, write to the Free Software
16  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
17  *
18  * Author: Leonard Tracy <lentracy@gmail.com>
19  */
20 
21 #include "uan-address.h"
22 #include "ns3/address.h"
23 
24 namespace ns3 {
25 
26 UanAddress::UanAddress ()
27 {
28  m_address = 255;
29 }
30 
31 UanAddress::UanAddress (uint8_t addr)
32  : m_address (addr)
33 {
34 }
35 
36 UanAddress::~UanAddress ()
37 {
38 }
39 
40 uint8_t
41 UanAddress::GetType (void)
42 {
43  static uint8_t type = Address::Register ();
44  return type;
45 }
46 
47 Address
48 UanAddress::ConvertTo (void) const
49 {
50  return Address (GetType (), &m_address, 1);
51 }
52 
53 UanAddress
54 UanAddress::ConvertFrom (const Address &address)
55 {
56  NS_ASSERT (IsMatchingType (address));
57  UanAddress uAddr;
58  address.CopyTo (&uAddr.m_address);
59  return uAddr;
60 }
61 
62 uint8_t
63 UanAddress::GetAsInt (void) const
64 {
65  return m_address;
66 }
67 bool
68 UanAddress::IsMatchingType (const Address &address)
69 {
70  return address.CheckCompatible (GetType (), 1);
71 }
72 
73 UanAddress::operator Address () const
74 {
75  return ConvertTo ();
76 }
77 
78 void
79 UanAddress::CopyFrom (const uint8_t *pBuffer)
80 {
81  m_address = *pBuffer;
82 }
83 
84 void
85 UanAddress::CopyTo (uint8_t *pBuffer)
86 {
87  *pBuffer = m_address;
88 
89 }
90 
91 UanAddress
92 UanAddress::GetBroadcast ()
93 {
94  return UanAddress (255);
95 }
96 UanAddress
97 UanAddress::Allocate ()
98 {
99  static uint8_t nextAllocated = 0;
100 
101  uint32_t address = nextAllocated++;
102  if (nextAllocated == 255)
103  {
104  nextAllocated = 0;
105  }
106 
107  return UanAddress (address);
108 }
109 
110 bool
111 operator == (const UanAddress &a, const UanAddress &b)
112 {
113  return a.m_address == b.m_address;
114 }
115 
116 bool
117 operator != (const UanAddress &a, const UanAddress &b)
118 {
119  return !(a == b);
120 }
121 
122 std::ostream&
123 operator<< (std::ostream& os, const UanAddress & address)
124 {
125  os << (int) address.m_address;
126  return os;
127 }
128 std::istream&
129 operator>> (std::istream& is, UanAddress & address)
130 {
131  int x;
132  is >> x;
133  NS_ASSERT (0 <= x);
134  NS_ASSERT (x <= 255);
135  address.m_address = x;
136  return is;
137 }
138 
139 } // namespace ns3