95 lines
2.1 KiB
C++
95 lines
2.1 KiB
C++
/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
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/*
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* Copyright (c) 2006 INRIA
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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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*/
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#include "ns3/ptr.h"
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#include "ns3/object.h"
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#include <iostream>
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using namespace ns3;
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class PtrExample : public Object
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{
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public:
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PtrExample ();
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~PtrExample ();
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void Method (void);
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};
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PtrExample::PtrExample ()
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{
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std::cout << "PtrExample constructor" << std::endl;
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}
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PtrExample::~PtrExample()
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{
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std::cout << "PtrExample destructor" << std::endl;
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}
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void
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PtrExample::Method (void)
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{
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std::cout << "PtrExample method" << std::endl;
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}
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static Ptr<PtrExample> g_ptr = 0;
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static Ptr<PtrExample>
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StorePtr (Ptr<PtrExample> p)
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{
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Ptr<PtrExample> prev = g_ptr;
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g_ptr = p;
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return prev;
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}
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static void
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ClearPtr (void)
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{
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g_ptr = 0;
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}
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int main (int argc, char *argv[])
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{
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{
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// Create a new object of type PtrExample, store it in global
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// variable g_ptr
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Ptr<PtrExample> p = CreateObject<PtrExample> ();
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p->Method ();
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Ptr<PtrExample> prev = StorePtr (p);
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NS_ASSERT (prev == 0);
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}
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{
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// Create a new object of type PtrExample, store it in global
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// variable g_ptr, get a hold on the previous PtrExample object.
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Ptr<PtrExample> p = CreateObject<PtrExample> ();
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Ptr<PtrExample> prev = StorePtr (p);
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// call method on object
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prev->Method ();
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// Clear the currently-stored object
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ClearPtr ();
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// get the raw pointer and release it.
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PtrExample *raw = GetPointer (prev);
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prev = 0;
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raw->Method ();
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raw->Unref ();
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}
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return 0;
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}
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