1 /*

     2  * Copyright (c) 2012, 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.debug.internal;

    24 

    25 import static org.graalvm.compiler.debug.DebugCloseable.VOID_CLOSEABLE;

    26 

    27 import org.graalvm.compiler.debug.Debug;

    28 import org.graalvm.compiler.debug.DebugCloseable;

    29 import org.graalvm.compiler.debug.DebugMemUseTracker;

    30 import org.graalvm.compiler.debug.Management;

    31 import org.graalvm.compiler.debug.internal.method.MethodMetricsImpl;

    32 

    33 public class MemUseTrackerImpl extends AccumulatedDebugValue implements DebugMemUseTracker {

    34     private final boolean intercepting;

    35 

    36     public static long getCurrentThreadAllocatedBytes() {

    37         return Management.getCurrentThreadAllocatedBytes();

    38     }

    39 

    40     /**

    41      * Records the most recent active tracker.

    42      */

    43     private static final ThreadLocal<CloseableCounterImpl> currentTracker = new ThreadLocal<>();

    44 

    45     public MemUseTrackerImpl(String name, boolean conditional, boolean intercepting) {

    46         super(name, conditional, new DebugValue(name + "_Flat", conditional) {

    47 

    48             @Override

    49             public String toString(long value) {

    50                 return valueToString(value);

    51             }

    52 

    53             @Override

    54             public String rawUnit() {

    55                 return "B";

    56             }

    57 

    58             @Override

    59             public String toRawString(long value) {

    60                 return Long.toString(value);

    61             }

    62         });

    63         this.intercepting = intercepting;

    64     }

    65 

    66     @Override

    67     public DebugCloseable start() {

    68         if (!isConditional() || Debug.isMemUseTrackingEnabled()) {

    69             CloseableCounterImpl result = intercepting ? new MemUseInterceptingCloseableCounterImpl(this) : new MemUseCloseableCounterImpl(this);

    70             currentTracker.set(result);

    71             return result;

    72         } else {

    73             return VOID_CLOSEABLE;

    74         }

    75     }

    76 

    77     public static String valueToString(long value) {

    78         return String.format("%d bytes", value);

    79     }

    80 

    81     @Override

    82     public String toString(long value) {

    83         return valueToString(value);

    84     }

    85 

    86     private static final class MemUseCloseableCounterImpl extends CloseableCounterImpl implements DebugCloseable {

    87 

    88         private MemUseCloseableCounterImpl(AccumulatedDebugValue counter) {

    89             super(currentTracker.get(), counter);

    90         }

    91 

    92         @Override

    93         long getCounterValue() {

    94             return getCurrentThreadAllocatedBytes();

    95         }

    96 

    97         @Override

    98         public void close() {

    99             super.close();

   100             currentTracker.set(parent);

   101         }

   102     }

   103 

   104     private static final class MemUseInterceptingCloseableCounterImpl extends CloseableCounterImpl implements DebugCloseable {

   105 

   106         private MemUseInterceptingCloseableCounterImpl(AccumulatedDebugValue counter) {

   107             super(currentTracker.get(), counter);

   108         }

   109 

   110         @Override

   111         long getCounterValue() {

   112             return getCurrentThreadAllocatedBytes();

   113         }

   114 

   115         @Override

   116         public void close() {

   117             super.close();

   118             currentTracker.set(parent);

   119         }

   120 

   121         @Override

   122         protected void interceptDifferenceAccm(long difference) {

   123             if (Debug.isMethodMeterEnabled()) {

   124                 MethodMetricsImpl.addToCurrentScopeMethodMetrics(counter.getName(), difference);

   125             }

   126         }

   127 

   128         @Override

   129         protected void interceptDifferenceFlat(long difference) {

   130             if (Debug.isMethodMeterEnabled()) {

   131                 MethodMetricsImpl.addToCurrentScopeMethodMetrics(counter.flat.getName(), difference);

   132             }

   133         }

   134     }

   135 

   136     @Override

   137     public String rawUnit() {

   138         return "B";

   139     }

   140 

   141     @Override

   142     public String toRawString(long value) {

   143         return Long.toString(value);

   144     }

   145 }