85e43339c8
git-svn-id: svn://svn.code.sf.net/p/loki-lib/code/trunk@756 7ec92016-0320-0410-acc4-a06ded1c099a
74 lines
2.5 KiB
C++
74 lines
2.5 KiB
C++
////////////////////////////////////////////////////////////////////////////////
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// The Loki Library
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// Copyright (c) 2001 by Andrei Alexandrescu
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// This code accompanies the book:
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// Alexandrescu, Andrei. "Modern C++ Design: Generic Programming and Design
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// Patterns Applied". Copyright (c) 2001. Addison-Wesley.
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// Permission to use, copy, modify, distribute and sell this software for any
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// purpose is hereby granted without fee, provided that the above copyright
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// notice appear in all copies and that both that copyright notice and this
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// permission notice appear in supporting documentation.
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// The author or Addison-Wesley Longman make no representations about the
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// suitability of this software for any purpose. It is provided "as is"
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// without express or implied warranty.
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////////////////////////////////////////////////////////////////////////////////
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// $Id$
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#include <loki/Singleton.h>
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#ifdef LOKI_ENABLE_NEW_SETLONGLIVITY_HELPER_DATA_IMPL
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Loki::Private::TrackerArray* Loki::Private::pTrackerArray = 0;
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#else
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Loki::Private::TrackerArray Loki::Private::pTrackerArray = 0;
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unsigned int Loki::Private::elements = 0;
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#endif
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////////////////////////////////////////////////////////////////////////////////
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// function AtExitFn
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// Ensures proper destruction of objects with longevity
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////////////////////////////////////////////////////////////////////////////////
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#ifdef LOKI_ENABLE_NEW_SETLONGLIVITY_HELPER_DATA_IMPL
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void LOKI_C_CALLING_CONVENTION_QUALIFIER Loki::Private::AtExitFn()
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{
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assert(pTrackerArray!=0 && !pTrackerArray->empty());
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// Pick the element at the top of the stack
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LifetimeTracker* pTop = pTrackerArray->back();
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// Remove that object off the stack _before_ deleting pTop
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pTrackerArray->pop_back();
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// Destroy the element
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delete pTop;
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// Destroy stack when it's empty _after_ deleting pTop
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if(pTrackerArray->empty())
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{
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delete pTrackerArray;
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pTrackerArray = 0;
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}
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}
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#else
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void LOKI_C_CALLING_CONVENTION_QUALIFIER Loki::Private::AtExitFn()
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{
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assert(elements > 0 && pTrackerArray != 0);
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// Pick the element at the top of the stack
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LifetimeTracker* pTop = pTrackerArray[elements - 1];
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// Remove that object off the stack
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// Don't check errors - realloc with less memory
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// can't fail
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pTrackerArray = static_cast<TrackerArray>(std::realloc(
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pTrackerArray, sizeof(*pTrackerArray) * --elements));
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// Destroy the element
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delete pTop;
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}
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#endif
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