1 /*
   2  * Copyright (c) 2003, 2004, 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.  Oracle designates this
   8  * particular file as subject to the "Classpath" exception as provided
   9  * by Oracle in the LICENSE file that accompanied this code.
  10  *
  11  * This code is distributed in the hope that it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14  * version 2 for more details (a copy is included in the LICENSE file that
  15  * accompanied this code).
  16  *
  17  * You should have received a copy of the GNU General Public License version
  18  * 2 along with this work; if not, write to the Free Software Foundation,
  19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any
  23  * questions.
  24  */
  25 
  26 package sun.management;
  27 
  28 import sun.management.counter.Counter;
  29 
  30 /**
  31  * Hotspot internal management interface for the compilation system.
  32  */
  33 public interface HotspotCompilationMBean {
  34 
  35     /**
  36      * Returns the number of compiler threads.
  37      *
  38      * @return the number of compiler threads.
  39      */
  40     public int getCompilerThreadCount();
  41 
  42     /**
  43      * Returns the statistic of all compiler threads.
  44      *
  45      * @return a list of {@link CompilerThreadStat} object containing
  46      * the statistic of a compiler thread.
  47      *
  48      */
  49     public java.util.List<CompilerThreadStat> getCompilerThreadStats();
  50 
  51     /**
  52      * Returns the total number of compiles.
  53      *
  54      * @return the total number of compiles.
  55      */
  56     public long getTotalCompileCount();
  57 
  58     /**
  59      * Returns the number of bailout compiles.
  60      *
  61      * @return the number of bailout compiles.
  62      */
  63     public long getBailoutCompileCount();
  64 
  65     /**
  66      * Returns the number of invalidated compiles.
  67      *
  68      * @return the number of invalidated compiles.
  69      */
  70     public long getInvalidatedCompileCount();
  71 
  72     /**
  73      * Returns the method information of the last compiled method.
  74      *
  75      * @return a {@link MethodInfo} of the last compiled method.
  76      */
  77     public MethodInfo getLastCompile();
  78 
  79     /**
  80      * Returns the method information of the last failed compile.
  81      *
  82      * @return a {@link MethodInfo} of the last failed compile.
  83      */
  84     public MethodInfo getFailedCompile();
  85 
  86     /**
  87      * Returns the method information of the last invalidated compile.
  88      *
  89      * @return a {@link MethodInfo} of the last invalidated compile.
  90      */
  91     public MethodInfo getInvalidatedCompile();
  92 
  93     /**
  94      * Returns the number of bytes for the code of the
  95      * compiled methods.
  96      *
  97      * @return the number of bytes for the code of the compiled methods.
  98      */
  99     public long getCompiledMethodCodeSize();
 100 
 101     /**
 102      * Returns the number of bytes occupied by the compiled methods.
 103      *
 104      * @return the number of bytes occupied by the compiled methods.
 105      */
 106     public long getCompiledMethodSize();
 107 
 108     /**
 109      * Returns a list of internal counters maintained in the Java
 110      * virtual machine for the compilation system.
 111      *
 112      * @return a list of internal counters maintained in the VM
 113      * for the compilation system.
 114      */
 115     public java.util.List<Counter> getInternalCompilerCounters();
 116 }