1 /*
   2  * Copyright (c) 2016, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.
   8  *
   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  */
  23 package org.graalvm.compiler.hotspot.nodes.profiling;
  24 
  25 import jdk.vm.ci.meta.ResolvedJavaMethod;
  26 
  27 import static org.graalvm.compiler.nodeinfo.NodeCycles.CYCLES_10;
  28 import static org.graalvm.compiler.nodeinfo.NodeSize.SIZE_50;
  29 
  30 import org.graalvm.compiler.graph.NodeClass;
  31 import org.graalvm.compiler.nodeinfo.NodeInfo;
  32 
  33 @NodeInfo(cycles = CYCLES_10, size = SIZE_50)
  34 public class ProfileWithNotificationNode extends ProfileNode {
  35     public static final NodeClass<ProfileWithNotificationNode> TYPE = NodeClass.create(ProfileWithNotificationNode.class);
  36 
  37     protected int freqLog;
  38 
  39     protected ProfileWithNotificationNode(NodeClass<? extends ProfileNode> c, ResolvedJavaMethod method, int freqLog, int probabilityLog) {
  40         super(c, method, probabilityLog);
  41         this.freqLog = freqLog;
  42     }
  43 
  44     public ProfileWithNotificationNode(ResolvedJavaMethod method, int freqLog, int probabilityLog) {
  45         super(TYPE, method, probabilityLog);
  46         this.freqLog = freqLog;
  47     }
  48 
  49     /**
  50      * Get the logarithm base 2 of the notification frequency.
  51      */
  52     public int getNotificationFreqLog() {
  53         return freqLog;
  54     }
  55 
  56     /**
  57      * Set the logarithm base 2 of the notification frequency.
  58      */
  59     public void setNotificationFreqLog(int freqLog) {
  60         assert freqLog < 32;
  61         this.freqLog = freqLog;
  62     }
  63 
  64     public void setNotificationOff() {
  65         setNotificationFreqLog(-1);
  66     }
  67 
  68 }