a replacement for the Interface base class
This commit is contained in:
Mathieu Lacage
@@ -38,6 +38,7 @@ core.add_sources([
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'command-line.cc',
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'type-name.cc',
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'component-manager.cc',
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'interface-object.cc',
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])
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env = Environment()
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if env['PLATFORM'] == 'posix' or env['PLATFORM'] == 'darwin' or env['PLATFORM'] == 'cygwin':
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@@ -70,6 +71,7 @@ core.add_inst_headers([
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'command-line.h',
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'type-name.h',
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'component-manager.h',
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'interface-object.h',
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])
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def config_core (env, config):
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552
src/core/interface-object.cc
Normal file
552
src/core/interface-object.cc
Normal file
@@ -0,0 +1,552 @@
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/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
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/*
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* Copyright (c) 2007 INRIA, Gustavo Carneiro
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation;
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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* Authors: Gustavo Carneiro <gjcarneiro@gmail.com>,
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* Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
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*/
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#include "interface-object.h"
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#include "assert.h"
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#include "singleton.h"
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#include "uid-manager.h"
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#include <vector>
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namespace {
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class IidManager : public ns3::UidManager
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{};
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class IidTree
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{
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public:
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void SetParent (uint32_t child, const uint32_t *parent);
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uint32_t LookupParent (uint32_t child);
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private:
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std::vector<const uint32_t *> m_parents;
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};
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void
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IidTree::SetParent (uint32_t child, const uint32_t *parent)
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{
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m_parents.resize (child+1);
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m_parents[child] = parent;
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}
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uint32_t
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IidTree::LookupParent (uint32_t child)
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{
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return *(m_parents[child]);
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}
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} // anonymous namespace
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namespace ns3 {
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MyInterfaceId::MyInterfaceId (uint32_t iid)
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: m_iid (iid)
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{}
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MyInterfaceId
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MyInterfaceId::LookupByName (std::string name)
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{
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return MyInterfaceId (Singleton<IidManager>::Get ()->LookupByName (name));
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}
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MyInterfaceId
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MyInterfaceId::LookupParent (MyInterfaceId iid)
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{
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return Singleton<IidTree>::Get ()->LookupParent (iid.m_iid);
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}
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bool operator == (const MyInterfaceId &a, const MyInterfaceId &b)
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{
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return a.m_iid == b.m_iid;
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}
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bool operator != (const MyInterfaceId &a, const MyInterfaceId &b)
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{
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return a.m_iid != b.m_iid;
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}
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MyInterfaceId
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MakeInterfaceId (std::string name, const MyInterfaceId &parent)
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{
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MyInterfaceId iid = Singleton<IidManager>::Get ()->Allocate (name);
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Singleton<IidTree>::Get ()->SetParent (iid.m_iid, &parent.m_iid);
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return iid;
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}
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MyInterfaceId
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MakeObjectInterfaceId (void)
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{
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MyInterfaceId iid = Singleton<IidManager>::Get ()->Allocate ("Object");
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Singleton<IidTree>::Get ()->SetParent (iid.m_iid, &iid.m_iid);
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return iid;
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}
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class AggregateObject
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{
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public:
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AggregateObject ();
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~AggregateObject ();
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void Ref (void);
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void Ref (AggregateObject *other);
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void RefAll (uint32_t count);
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void Unref (void);
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void UnrefAll (void);
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InterfaceObject *PeekQueryInterface (MyInterfaceId iid, InterfaceObject *caller);
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void Dispose (void);
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void AddObject (InterfaceObject *object);
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void Swallow (AggregateObject *object);
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private:
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typedef std::vector<InterfaceObject *> ObjectList;
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uint32_t m_count;
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ObjectList m_objectList;
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};
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AggregateObject::AggregateObject ()
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: m_count (1)
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{}
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AggregateObject::~AggregateObject ()
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{
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NS_ASSERT (m_count == 0);
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}
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void
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AggregateObject::Ref (void)
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{
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m_count++;
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}
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void
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AggregateObject::Ref (AggregateObject *other)
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{
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m_count+= other->m_count;
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}
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void
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AggregateObject::RefAll (uint32_t count)
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{
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m_count += count;
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}
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void
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AggregateObject::UnrefAll (void)
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{
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m_count = 0;
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delete this;
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}
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void
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AggregateObject::Unref (void)
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{
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m_count--;
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if (m_count == 0)
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{
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for (ObjectList::iterator i = m_objectList.begin (); i != m_objectList.end (); i++)
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{
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delete *i;
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}
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delete this;
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}
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}
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InterfaceObject *
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AggregateObject::PeekQueryInterface (MyInterfaceId iid, InterfaceObject *caller)
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{
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for (ObjectList::iterator i = m_objectList.begin (); i != m_objectList.end (); i++)
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{
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if (*i != caller)
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{
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MyInterfaceId cur = (*i)->m_iid;
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while (cur != iid && cur != InterfaceObject::iid)
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{
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cur = MyInterfaceId::LookupParent (cur);
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}
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if (cur == iid)
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{
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return *i;
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}
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}
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}
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return 0;
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}
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void
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AggregateObject::Dispose (void)
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{
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for (ObjectList::iterator i = m_objectList.begin (); i != m_objectList.end (); i++)
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{
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(*i)->DoDispose ();
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}
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}
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void
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AggregateObject::AddObject (InterfaceObject *object)
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{
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// XXX should check for interface uniqueness.
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m_objectList.push_back (object);
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}
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void
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AggregateObject::Swallow (AggregateObject *other)
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{
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for (ObjectList::iterator i = other->m_objectList.begin (); i != other->m_objectList.end (); i++)
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{
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m_objectList.push_back (*i);
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}
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other->m_objectList.clear ();
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}
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const MyInterfaceId InterfaceObject::iid = MakeObjectInterfaceId ();
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InterfaceObject::InterfaceObject ()
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: m_count (1),
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m_iid (InterfaceObject::iid),
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m_aggregate (0)
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{}
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InterfaceObject::~InterfaceObject ()
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{}
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void
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InterfaceObject::Ref (void)
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{
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NS_ASSERT (Check ());
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if (m_aggregate != 0)
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{
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NS_ASSERT (m_count == 0);
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m_aggregate->Ref ();
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}
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else
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{
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m_count++;
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}
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}
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void
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InterfaceObject::Unref (void)
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{
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NS_ASSERT (Check ());
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if (m_aggregate != 0)
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{
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NS_ASSERT (m_count == 0);
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m_aggregate->Unref ();
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}
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else
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{
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m_count--;
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if (m_count == 0)
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{
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delete this;
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}
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}
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}
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Ptr<InterfaceObject>
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InterfaceObject::DoQueryInterface (MyInterfaceId iid)
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{
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NS_ASSERT (Check ());
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MyInterfaceId cur = m_iid;
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while (cur != iid && cur != InterfaceObject::iid)
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{
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cur = MyInterfaceId::LookupParent (cur);
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}
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if (cur == iid)
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{
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return this;
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}
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if (m_aggregate != 0)
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{
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NS_ASSERT (m_count == 0);
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return m_aggregate->PeekQueryInterface (iid, this);
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}
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return 0;
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}
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void
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InterfaceObject::Dispose (void)
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{
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NS_ASSERT (Check ());
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if (m_aggregate != 0)
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{
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NS_ASSERT (m_count == 0);
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m_aggregate->Dispose ();
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}
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else
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{
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DoDispose ();
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}
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}
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void
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InterfaceObject::Add (Ptr<InterfaceObject> o)
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{
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NS_ASSERT (Check ());
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NS_ASSERT (o->Check ());
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InterfaceObject *other = PeekPointer (o);
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if (m_aggregate != 0 && other->m_aggregate != 0)
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{
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NS_ASSERT (m_count == 0);
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NS_ASSERT (other->m_count == 0);
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m_aggregate->Swallow (other->m_aggregate);
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m_aggregate->Ref (other->m_aggregate);
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other->m_aggregate->UnrefAll ();
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other->m_aggregate = m_aggregate;
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}
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else if (m_aggregate != 0)
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{
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NS_ASSERT (other->m_aggregate == 0);
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NS_ASSERT (m_count == 0);
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m_aggregate->AddObject (other);
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other->m_aggregate = m_aggregate;
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other->m_aggregate->RefAll (other->m_count);
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other->m_count = 0;
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}
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else if (other->m_aggregate != 0)
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{
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NS_ASSERT (m_aggregate == 0);
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other->m_aggregate->AddObject (this);
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m_aggregate = other->m_aggregate;
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m_aggregate->RefAll (m_count);
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m_count = 0;
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}
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else
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{
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NS_ASSERT (m_aggregate == 0);
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NS_ASSERT (other->m_aggregate == 0);
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m_aggregate = new AggregateObject ();
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other->m_aggregate = m_aggregate;
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m_aggregate->AddObject (this);
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m_aggregate->AddObject (other);
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m_aggregate->RefAll (m_count);
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m_aggregate->RefAll (other->m_count);
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m_aggregate->Unref ();
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other->m_count = 0;
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m_count = 0;
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}
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NS_ASSERT (Check ());
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NS_ASSERT (o->Check ());
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}
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void
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InterfaceObject::SetInterfaceId (MyInterfaceId iid)
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{
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NS_ASSERT (Check ());
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m_iid = iid;
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}
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void
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InterfaceObject::DoDispose (void)
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{
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NS_ASSERT (Check ());
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}
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bool
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InterfaceObject::Check (void)
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{
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return (m_count == 0 && m_aggregate != 0) || (m_count != 0 && m_aggregate == 0);
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}
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} // namespace ns3
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#ifdef RUN_SELF_TESTS
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#include "test.h"
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namespace {
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class BaseA : public ns3::InterfaceObject
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{
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public:
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static const ns3::MyInterfaceId iid;
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BaseA ()
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{
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SetInterfaceId (BaseA::iid);
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}
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virtual void Dispose (void) {}
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};
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class DerivedA : public BaseA
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{
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public:
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static const ns3::MyInterfaceId iid;
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DerivedA (int v)
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{
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SetInterfaceId (DerivedA::iid);
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}
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virtual void Dispose (void) {
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BaseA::Dispose ();
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}
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};
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const ns3::MyInterfaceId BaseA::iid =
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ns3::MakeInterfaceId ("BaseA", InterfaceObject::iid);
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const ns3::MyInterfaceId DerivedA::iid =
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ns3::MakeInterfaceId ("DerivedA", BaseA::iid);;
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class BaseB : public ns3::InterfaceObject
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{
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public:
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static const ns3::MyInterfaceId iid;
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BaseB ()
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{
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SetInterfaceId (BaseB::iid);
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}
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virtual void Dispose (void) {}
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};
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class DerivedB : public BaseB
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{
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public:
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static const ns3::MyInterfaceId iid;
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DerivedB (int v)
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{
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SetInterfaceId (DerivedB::iid);
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}
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virtual void Dispose (void) {
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BaseB::Dispose ();
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}
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};
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const ns3::MyInterfaceId BaseB::iid =
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ns3::MakeInterfaceId ("BaseB", InterfaceObject::iid);
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const ns3::MyInterfaceId DerivedB::iid =
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ns3::MakeInterfaceId ("DerivedB", BaseB::iid);;
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} // namespace anonymous
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namespace ns3 {
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class InterfaceObjectTest : public Test
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{
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public:
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InterfaceObjectTest ();
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virtual bool RunTests (void);
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};
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InterfaceObjectTest::InterfaceObjectTest ()
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: Test ("InterfaceObject")
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{}
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bool
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InterfaceObjectTest::RunTests (void)
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{
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bool ok = true;
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Ptr<BaseA> baseA = MakeNewObject<BaseA> ();
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if (baseA->QueryInterface<BaseA> (BaseA::iid) != baseA)
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{
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ok = false;
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}
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if (baseA->QueryInterface<BaseA> (DerivedA::iid) != 0)
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{
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ok = false;
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}
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if (baseA->QueryInterface<DerivedA> (DerivedA::iid) != 0)
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{
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ok = false;
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}
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baseA = MakeNewObject<DerivedA> (10);
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if (baseA->QueryInterface<BaseA> (BaseA::iid) != baseA)
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{
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ok = false;
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}
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if (baseA->QueryInterface<BaseA> (DerivedA::iid) != baseA)
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{
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ok = false;
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}
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if (baseA->QueryInterface<DerivedA> (DerivedA::iid) == 0)
|
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{
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ok = false;
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}
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baseA = MakeNewObject<BaseA> ();
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Ptr<BaseB> baseB = MakeNewObject<BaseB> ();
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Ptr<BaseB> baseBCopy = baseB;
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baseA->Add (baseB);
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if (baseA->QueryInterface<BaseA> (BaseA::iid) == 0)
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{
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ok = false;
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}
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if (baseA->QueryInterface<DerivedA> (DerivedA::iid) != 0)
|
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{
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ok = false;
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}
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if (baseA->QueryInterface<BaseB> (BaseB::iid) == 0)
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{
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ok = false;
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}
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if (baseA->QueryInterface<DerivedB> (DerivedB::iid) != 0)
|
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{
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ok = false;
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}
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if (baseB->QueryInterface<BaseB> (BaseB::iid) == 0)
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{
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ok = false;
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}
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if (baseB->QueryInterface<DerivedB> (DerivedB::iid) != 0)
|
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{
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ok = false;
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}
|
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if (baseB->QueryInterface<BaseA> (BaseA::iid) == 0)
|
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{
|
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ok = false;
|
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}
|
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if (baseB->QueryInterface<DerivedA> (DerivedA::iid) != 0)
|
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{
|
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ok = false;
|
||||
}
|
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if (baseBCopy->QueryInterface<BaseA> (BaseA::iid) == 0)
|
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{
|
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ok = false;
|
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}
|
||||
|
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baseA = MakeNewObject<DerivedA> (1);
|
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baseB = MakeNewObject<DerivedB> (1);
|
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baseBCopy = baseB;
|
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baseA->Add (baseB);
|
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if (baseA->QueryInterface<DerivedB> (DerivedB::iid) == 0)
|
||||
{
|
||||
ok = false;
|
||||
}
|
||||
if (baseA->QueryInterface<BaseB> (BaseB::iid) == 0)
|
||||
{
|
||||
ok = false;
|
||||
}
|
||||
if (baseB->QueryInterface<DerivedA> (DerivedA::iid) == 0)
|
||||
{
|
||||
ok = false;
|
||||
}
|
||||
if (baseB->QueryInterface<BaseA> (BaseA::iid) == 0)
|
||||
{
|
||||
ok = false;
|
||||
}
|
||||
if (baseBCopy->QueryInterface<DerivedA> (DerivedA::iid) == 0)
|
||||
{
|
||||
ok = false;
|
||||
}
|
||||
if (baseBCopy->QueryInterface<BaseA> (BaseA::iid) == 0)
|
||||
{
|
||||
ok = false;
|
||||
}
|
||||
if (baseB->QueryInterface<DerivedB> (DerivedB::iid) == 0)
|
||||
{
|
||||
ok = false;
|
||||
}
|
||||
if (baseB->QueryInterface<BaseB> (BaseB::iid) == 0)
|
||||
{
|
||||
ok = false;
|
||||
}
|
||||
|
||||
|
||||
return ok;
|
||||
}
|
||||
|
||||
static InterfaceObjectTest g_interfaceObjectTests;
|
||||
|
||||
|
||||
} // namespace ns3
|
||||
|
||||
#endif /* RUN_SELF_TESTS */
|
||||
|
||||
|
||||
94
src/core/interface-object.h
Normal file
94
src/core/interface-object.h
Normal file
@@ -0,0 +1,94 @@
|
||||
/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
|
||||
/*
|
||||
* Copyright (c) 2007 INRIA, Gustavo Carneiro
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License version 2 as
|
||||
* published by the Free Software Foundation;
|
||||
*
|
||||
* This program is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* along with this program; if not, write to the Free Software
|
||||
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
||||
*
|
||||
* Authors: Gustavo Carneiro <gjcarneiro@gmail.com>,
|
||||
* Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
|
||||
*/
|
||||
#ifndef INTERFACE_OBJECT_H
|
||||
#define INTERFACE_OBJECT_H
|
||||
|
||||
#include <stdint.h>
|
||||
#include <string>
|
||||
#include "ptr.h"
|
||||
|
||||
namespace ns3 {
|
||||
|
||||
class MyInterfaceId
|
||||
{
|
||||
public:
|
||||
static MyInterfaceId LookupByName (std::string name);
|
||||
static MyInterfaceId LookupParent (MyInterfaceId iid);
|
||||
private:
|
||||
MyInterfaceId (uint32_t iid);
|
||||
friend MyInterfaceId MakeInterfaceId (std::string name, const MyInterfaceId &parent);
|
||||
friend MyInterfaceId MakeObjectInterfaceId (void);
|
||||
friend class AggregateObject;
|
||||
friend bool operator == (const MyInterfaceId &a, const MyInterfaceId &b);
|
||||
friend bool operator != (const MyInterfaceId &a, const MyInterfaceId &b);
|
||||
uint32_t m_iid;
|
||||
};
|
||||
|
||||
MyInterfaceId
|
||||
MakeInterfaceId (std::string name, const MyInterfaceId &parent);
|
||||
|
||||
class AggregateObject;
|
||||
|
||||
class InterfaceObject
|
||||
{
|
||||
public:
|
||||
static const MyInterfaceId iid;
|
||||
|
||||
InterfaceObject ();
|
||||
virtual ~InterfaceObject ();
|
||||
void Ref (void);
|
||||
void Unref (void);
|
||||
template <typename T>
|
||||
Ptr<T> QueryInterface (MyInterfaceId iid);
|
||||
void Dispose (void);
|
||||
void Add (Ptr<InterfaceObject> other);
|
||||
protected:
|
||||
void SetInterfaceId (MyInterfaceId iid);
|
||||
private:
|
||||
friend class AggregateObject;
|
||||
virtual void DoDispose (void);
|
||||
Ptr<InterfaceObject> DoQueryInterface (MyInterfaceId iid);
|
||||
bool Check (void);
|
||||
uint32_t m_count;
|
||||
MyInterfaceId m_iid;
|
||||
AggregateObject *m_aggregate;
|
||||
};
|
||||
|
||||
} // namespace ns3
|
||||
|
||||
namespace ns3 {
|
||||
|
||||
template <typename T>
|
||||
Ptr<T>
|
||||
InterfaceObject::QueryInterface (MyInterfaceId iid)
|
||||
{
|
||||
Ptr<InterfaceObject> found = DoQueryInterface (iid);
|
||||
if (found != 0)
|
||||
{
|
||||
return Ptr<T> (dynamic_cast<T *> (PeekPointer (found)));
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
||||
} // namespace ns3
|
||||
|
||||
#endif /* INTERFACE_OBJECT_H */
|
||||
|
||||
Reference in New Issue
Block a user