genericopenlibs/cppstdlib/src/set_new_handler.cpp
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// Copyright (c) 2006-2009 Nokia Corporation and/or its subsidiary(-ies).
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// All rights reserved.
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// This component and the accompanying materials are made available
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// under the terms of "Eclipse Public License v1.0"
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// which accompanies this distribution, and is available
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// at the URL "http://www.eclipse.org/legal/epl-v10.html".
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//
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// Initial Contributors:
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// Nokia Corporation - initial contribution.
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//
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// Contributors:
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//
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// Description:
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// Name        : new_handler.cpp
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// Part of     : libstdcpp
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// Adaptation layer to get locale functionality.
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// Version     : 
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// This material, including documentation and any related 
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// computer programs, is protected by copyright controlled by 
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// Nokia Corporation. All rights are reserved. Copying, 
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// including reproducing, storing, adapting or translating, any 
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// or all of this material requires the prior written consent of 
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// Nokia Corporation. This material also contains confidential 
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// information which may not be disclosed to others without the 
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// prior written consent of Nokia Corporation.
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//
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#include "new"
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#include <e32std.h>
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_LIT(K,"set_new_handler");
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using std::new_handler;
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#ifdef __SYMBIAN_STDCPP_SUPPORT__ 
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EXPORT_C new_handler std::set_new_handler(new_handler a_new_nh) __NO_THROW
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	{
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	new_handler current_nh;
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	TAny* tls_word_p = Dll::Tls();
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	if (!tls_word_p)
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		{
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		// This is the first time we're called, so we need to set up the TLS.
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		tls_word_p = User::Alloc( sizeof(new_handler) );
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		if ( !tls_word_p )
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			{
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			User::Panic(K, KErrNoMemory);
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			}
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		Dll::SetTls(tls_word_p);
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		current_nh = 0;
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		}
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	else
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		{
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		// Get the currently installed new_handler function.
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		current_nh = *reinterpret_cast<new_handler*>(tls_word_p);
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		}
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	// Set the new new_handler.
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	*reinterpret_cast<new_handler*>(tls_word_p) = a_new_nh;
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	return current_nh;
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	}
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#endif // __SYMBIAN_STDCPP_SUPPORT__