kerneltest/e32test/heap/t_hcomp.cpp
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Fri, 14 May 2010 17:13:29 +0300
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permissions -rw-r--r--
Revision: 201019 Kit: 201019
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// Copyright (c) 1997-2009 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 the License "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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// e32test\heap\t_hcomp.cpp
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// Causes lots of chunk compression without using much memory
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// Won't work on WINS unless memory allocation limits are set.
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// 
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//
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#include <e32std.h>
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#include <e32std_private.h>
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#include <e32hal.h>
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const TUint size64k = 64*1024;
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GLDEF_C TInt E32Main()
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	{
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	RProcess me;
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	me.SetPriority(EPriorityHigh);
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	TMemoryInfoV1Buf membuf;
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	UserHal::MemoryInfo(membuf);
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	TInt maxmem=membuf().iTotalRamInBytes;
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	TInt heapsize=maxmem*2;
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	RHeap* heap1=User::ChunkHeap(NULL,size64k,heapsize+size64k);
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	if (heap1==NULL)
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		return KErrNoMemory;
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	// Need this horrible construct because RVCT4 complains that the return is
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	// unreachable code.  Without it, though, other code analysers will complain
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	// that there is a missing return value!	
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	volatile TInt forever = 1;
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	while(forever)
0
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		{
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		TUint8* ptr=(TUint8*)heap1->Alloc(heapsize);	// fail, compress, fail
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		User::After(1000);	// quite soon
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		heap1->Free(ptr);
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		}
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	return 0;
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	}