--- a/javauis/javalegacyutils/javasrc/com/nokia/mj/impl/rt/legacy/MemoryUtil.java	Thu Sep 02 20:20:40 2010 +0300
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,141 +0,0 @@
-/*
-* Copyright (c) 2001-2010 Nokia Corporation and/or its subsidiary(-ies).
-* All rights reserved.
-* This component and the accompanying materials are made available
-* under the terms of "Eclipse Public License v1.0"
-* which accompanies this distribution, and is available
-* at the URL "http://www.eclipse.org/legal/epl-v10.html".
-*
-* Initial Contributors:
-* Nokia Corporation - initial contribution.
-*
-* Contributors:
-*
-* Description:
-*
-*/
-
-
-package com.nokia.mj.impl.rt.legacy;
-
-import com.nokia.mj.impl.rt.support.JvmInternal;
-import com.nokia.mj.impl.rt.support.Jvm;
-
-public class MemoryUtil
-{
-
-    static
-    {
-        Jvm.loadSystemLibrary("javalegacyutils");
-    }
-
-
-    // Two independent mechanisms are available for managing native
-    // heap consumption.
-
-    // The first mechanism checks available system heap, and if
-    // beneath a configurable limit forces a garbage collection
-    // followed by synchronous execution of all pending
-    // finalizers. This mechanism is not used by Symbian JSRs but
-    // is preferred by some licensees.
-
-    private static final int FREE_KB_RAM_LIMIT_FOR_FINALIZATION = 4096; // S60 change
-
-    public static void ensureMinFreeRAM()
-    {
-        final long freeRAM = _getFreeRAMInKB();
-        if (freeRAM < FREE_KB_RAM_LIMIT_FOR_FINALIZATION)
-        {
-            // Attempt GC also if returned an error code (!= KErrNone)
-            freeNativeMemory();
-        }
-    }
-
-    // The second mechanism allows native allocation/deallocation
-    // to be tracked and triggers regular garbage collections
-    // after a configurable delta. This is the mechanism used by
-    // Symbian JSRs since it is proactive in keeping native heap
-    // allocation under control rather than allowing the
-    // consumption of all system memory before taking action.
-
-    private static final int NATIVE_ALLOCATION_GC_THRESHOLD = 2048 * 1024; // S60 change
-
-    static final Object sNativeAllocationLock = new Object();
-    static long sNativeAllocationCounter = 0;
-
-
-    /**
-     * Native heap management memory allocated notification.
-     *
-     * Called after a native memory allocation to allow
-     * heap manager to track native heap usage.
-     */
-    public static void nativeMemoryAllocated(int aNativeBytes)
-    {
-        /*
-         * Native heap allocation algorith: track known native allocations and
-         * deletions. Trigger GC when total allocation reaches a threshold.
-         * We zero the allocation count when this happens to avoid pathological
-         * cases for applications that have a stable native heap use that just
-         * exceeds the threshold.
-         */
-        boolean gc = false;
-        synchronized (sNativeAllocationLock)
-        {
-            sNativeAllocationCounter += aNativeBytes; // S60 change
-            if (sNativeAllocationCounter > NATIVE_ALLOCATION_GC_THRESHOLD)   // S60 change
-            {
-                sNativeAllocationCounter = 0;
-                gc = true;
-            }
-        }
-        if (gc)
-        {
-            freeNativeMemory(); // S60 change
-        }
-    }
-
-    /**
-     * Native heap management memory released notification.
-     *
-     * Called after native memory freed to allow heap manager
-     * to track native heap usage.
-     */
-    public static void nativeMemoryFreed(int aNativeBytes)
-    {
-        /*
-         * Decrement native heap counter and zero clamp.
-         */
-        synchronized (sNativeAllocationLock)
-        {
-            sNativeAllocationCounter -= aNativeBytes; // S60 change
-            if (sNativeAllocationCounter < 0)
-            {
-                sNativeAllocationCounter = 0;
-            }
-        }
-    }
-
-    /*
-     * Attempt to free native peers by forcing GC and finalization.
-     */
-    public static void freeNativeMemory()
-    {
-        //attempt GC also if returned an error code (!= KErrNone)
-        if (JvmInternal.runYoungGenerationGc())
-        {
-            JvmInternal.runFinalization();
-
-            if (_getFreeRAMInKB() >= FREE_KB_RAM_LIMIT_FOR_FINALIZATION)
-            {
-                return;
-            }
-        }
-        System.gc();
-        JvmInternal.runFinalization();
-    }
-
-    private static native long _getFreeRAMInKB();
-}
-// eof
-