HotspotCompilationMBean.java

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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 * under the terms of the GNU General Public License version 2 only, as
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 * particular file as subject to the "Classpath" exception as provided
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 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
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 * 2 along with this work; if not, write to the Free Software Foundation,
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package sun.management;

import sun.management.counter.Counter;

/**
 * Hotspot internal management interface for the compilation system.
 */
public interface HotspotCompilationMBean {

    /**
     * Returns the number of compiler threads.
     *
     * @return the number of compiler threads.
     */
    public int getCompilerThreadCount();

    /**
     * Returns the statistic of all compiler threads.
     *
     * @return a list of {@link CompilerThreadStat} object containing
     * the statistic of a compiler thread.
     *
     */
    public java.util.List<CompilerThreadStat> getCompilerThreadStats();

    /**
     * Returns the total number of compiles.
     *
     * @return the total number of compiles.
     */
    public long getTotalCompileCount();

    /**
     * Returns the number of bailout compiles.
     *
     * @return the number of bailout compiles.
     */
    public long getBailoutCompileCount();

    /**
     * Returns the number of invalidated compiles.
     *
     * @return the number of invalidated compiles.
     */
    public long getInvalidatedCompileCount();

    /**
     * Returns the method information of the last compiled method.
     *
     * @return a {@link MethodInfo} of the last compiled method.
     */
    public MethodInfo getLastCompile();

    /**
     * Returns the method information of the last failed compile.
     *
     * @return a {@link MethodInfo} of the last failed compile.
     */
    public MethodInfo getFailedCompile();

    /**
     * Returns the method information of the last invalidated compile.
     *
     * @return a {@link MethodInfo} of the last invalidated compile.
     */
    public MethodInfo getInvalidatedCompile();

    /**
     * Returns the number of bytes for the code of the
     * compiled methods.
     *
     * @return the number of bytes for the code of the compiled methods.
     */
    public long getCompiledMethodCodeSize();

    /**
     * Returns the number of bytes occupied by the compiled methods.
     *
     * @return the number of bytes occupied by the compiled methods.
     */
    public long getCompiledMethodSize();

    /**
     * Returns a list of internal counters maintained in the Java
     * virtual machine for the compilation system.
     *
     * @return a list of internal counters maintained in the VM
     * for the compilation system.
     */
    public java.util.List<Counter> getInternalCompilerCounters();
}