A Discrete-Event Network Simulator
API
hash.cc
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1 /* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
2 /*
3  * Copyright (c) 2012 Lawrence Livermore National Laboratory
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: Peter D. Barnes, Jr. <pdbarnes@llnl.gov>
19  */
20 
21 #include "log.h"
22 #include "hash.h"
23 
31 namespace ns3 {
32 
33 NS_LOG_COMPONENT_DEFINE ("Hash");
34 
35 Hasher& GetStaticHash (void)
36 {
37  static Hasher g_hasher = Hasher ();
38  g_hasher.clear();
39  return g_hasher;
40 }
41 
42 Hasher::Hasher ()
43 {
44  m_impl = Create <Hash::Function::Murmur3> ();
45  NS_ASSERT (m_impl != 0);
46 }
47 
48 Hasher::Hasher (Ptr<Hash::Implementation> hp)
49  : m_impl (hp)
50 {
51  NS_ASSERT (m_impl != 0);
52 }
53 
54 Hasher &
55 Hasher::clear (void)
56 {
57  m_impl->clear ();
58  return *this;
59 }
60 
61 } // namespace ns3
ns3::Hasher
Generic Hash function interface.
Definition: hash.h:88
ns3::Hasher::Hasher
Hasher()
Constructor using the default implementation.
Definition: hash.cc:42
ns3::Hasher::m_impl
Ptr< Hash::Implementation > m_impl
Hash implementation.
Definition: hash.h:176
ns3::Hasher::clear
Hasher & clear(void)
Restore initial state.
Definition: hash.cc:55
ns3::Ptr
Smart pointer class similar to boost::intrusive_ptr.
Definition: ptr.h:74
NS_ASSERT
#define NS_ASSERT(condition)
At runtime, in debugging builds, if this condition is not true, the program prints the source file,...
Definition: assert.h:67
NS_LOG_COMPONENT_DEFINE
#define NS_LOG_COMPONENT_DEFINE(name)
Define a Log component with a specific name.
Definition: log.h:205
hash.h
ns3::Hasher, ns3::Hash32() and ns3::Hash64() function declarations.
log.h
Debug message logging.
ns3
Every class exported by the ns3 library is enclosed in the ns3 namespace.
ns3::GetStaticHash
Hasher & GetStaticHash(void)
Get a reference to the static global hasher at g_hasher.
Definition: hash.cc:35