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Imported GNU Classpath 0.92

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2006-08-14  Mark Wielaard  <mark@klomp.org>

       Imported GNU Classpath 0.92
       * HACKING: Add more importing hints. Update automake version
       requirement.

       * configure.ac (gconf-peer): New enable AC argument.
       Add --disable-gconf-peer and --enable-default-preferences-peer
       to classpath configure when gconf is disabled.
       * scripts/makemake.tcl: Set gnu/java/util/prefs/gconf and
       gnu/java/awt/dnd/peer/gtk to bc. Classify
       gnu/java/security/Configuration.java as generated source file.

       * gnu/java/lang/management/VMGarbageCollectorMXBeanImpl.java,
       gnu/java/lang/management/VMMemoryPoolMXBeanImpl.java,
       gnu/java/lang/management/VMClassLoadingMXBeanImpl.java,
       gnu/java/lang/management/VMRuntimeMXBeanImpl.java,
       gnu/java/lang/management/VMMemoryManagerMXBeanImpl.java,
       gnu/java/lang/management/VMThreadMXBeanImpl.java,
       gnu/java/lang/management/VMMemoryMXBeanImpl.java,
       gnu/java/lang/management/VMCompilationMXBeanImpl.java: New VM stub
       classes.
       * java/lang/management/VMManagementFactory.java: Likewise.
       * java/net/VMURLConnection.java: Likewise.
       * gnu/java/nio/VMChannel.java: Likewise.

       * java/lang/Thread.java (getState): Add stub implementation.
       * java/lang/Class.java (isEnum): Likewise.
       * java/lang/Class.h (isEnum): Likewise.

       * gnu/awt/xlib/XToolkit.java (getClasspathTextLayoutPeer): Removed.

       * javax/naming/spi/NamingManager.java: New override for StackWalker
       functionality.

       * configure, sources.am, Makefile.in, gcj/Makefile.in,
       include/Makefile.in, testsuite/Makefile.in: Regenerated.

From-SVN: r116139
This commit is contained in:
Mark Wielaard 2006-08-14 23:12:35 +00:00
parent abab460491
commit ac1ed908de
1294 changed files with 99479 additions and 35933 deletions
Download patch file Download diff file Expand all files Collapse all files

100
libjava/gnu/java/lang/management/VMClassLoadingMXBeanImpl.java Normal file
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/* VMClassLoadingMXBeanImpl.java - VM impl. of a class loading bean
Copyright (C) 2006 Free Software Foundation
This file is part of GNU Classpath.
GNU Classpath is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
GNU Classpath 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 for more details.
You should have received a copy of the GNU General Public License
along with GNU Classpath; see the file COPYING. If not, write to the
Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
02110-1301 USA.
Linking this library statically or dynamically with other modules is
making a combined work based on this library. Thus, the terms and
conditions of the GNU General Public License cover the whole
combination.
As a special exception, the copyright holders of this library give you
permission to link this library with independent modules to produce an
executable, regardless of the license terms of these independent
modules, and to copy and distribute the resulting executable under
terms of your choice, provided that you also meet, for each linked
independent module, the terms and conditions of the license of that
module. An independent module is a module which is not derived from
or based on this library. If you modify this library, you may extend
this exception to your version of the library, but you are not
obligated to do so. If you do not wish to do so, delete this
exception statement from your version. */
package gnu.java.lang.management;
/**
* Provides access to information about the class loading
* behaviour of the current invocation of the virtual
* machine. Instances of this bean are obtained by calling
* {@link ManagementFactory#getClassLoadingMXBean()}.
*
* @author Andrew John Hughes (gnu_andrew@member.fsf.org)
* @since 1.5
*/
final class VMClassLoadingMXBeanImpl
{
/**
* Returns the number of classes currently loaded by
* the virtual machine.
*
* @return the number of loaded classes.
*/
static int getLoadedClassCount()
{
return -1;
}
/**
* Returns the number of classes that have been unloaded
* by the virtual machine since it was started.
*
* @return the number of unloaded classes.
*/
static long getUnloadedClassCount()
{
return -1;
}
/**
* Returns true if the virtual machine will emit additional
* information when classes are loaded and unloaded. The
* format of the output is left up to the virtual machine.
*
* @return true if verbose class loading output is on.
*/
static boolean isVerbose()
{
return false;
}
/**
* Turns on or off the emission of additional information
* when classes are loaded and unloaded. The format of the
* output is left up to the virtual machine. This method
* may be called by multiple threads concurrently, but there
* is only one global setting of verbosity that is affected.
*
* @param verbose the new setting for verbose class loading
* output.
*/
static void setVerbose(boolean verbose)
{
}
}

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/* VMCompilationMXBeanImpl.java - VM implementation of a compilation bean
Copyright (C) 2006 Free Software Foundation
This file is part of GNU Classpath.
GNU Classpath is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
GNU Classpath 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 for more details.
You should have received a copy of the GNU General Public License
along with GNU Classpath; see the file COPYING. If not, write to the
Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
02110-1301 USA.
Linking this library statically or dynamically with other modules is
making a combined work based on this library. Thus, the terms and
conditions of the GNU General Public License cover the whole
combination.
As a special exception, the copyright holders of this library give you
permission to link this library with independent modules to produce an
executable, regardless of the license terms of these independent
modules, and to copy and distribute the resulting executable under
terms of your choice, provided that you also meet, for each linked
independent module, the terms and conditions of the license of that
module. An independent module is a module which is not derived from
or based on this library. If you modify this library, you may extend
this exception to your version of the library, but you are not
obligated to do so. If you do not wish to do so, delete this
exception statement from your version. */
package gnu.java.lang.management;
/**
* Provides access to information about the JIT
* compiler of the virtual machine, if one exists.
* Instances of this bean are obtained by calling
* {@link ManagementFactory#getCompilationMXBean()},
* if this is the case.
*
* @author Andrew John Hughes (gnu_andrew@member.fsf.org)
* @since 1.5
*/
final class VMCompilationMXBeanImpl
{
/**
* Returns the number of milliseconds the JIT
* compiler has spent compiling Java bytecode
* to native machine code. This is only called
* if a JIT compiler exists and the
* gnu.java.lang.management.CompilationTimeSupport
* property has been set.
*
* @return the number of milliseconds spent
* compiling.
*/
static long getTotalCompilationTime()
{
return -1;
}
}

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/* VMGarbageCollectorMXBeanImpl.java - VM interface for a GC bean
Copyright (C) 2006 Free Software Foundation
This file is part of GNU Classpath.
GNU Classpath is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
GNU Classpath 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 for more details.
You should have received a copy of the GNU General Public License
along with GNU Classpath; see the file COPYING. If not, write to the
Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
02110-1301 USA.
Linking this library statically or dynamically with other modules is
making a combined work based on this library. Thus, the terms and
conditions of the GNU General Public License cover the whole
combination.
As a special exception, the copyright holders of this library give you
permission to link this library with independent modules to produce an
executable, regardless of the license terms of these independent
modules, and to copy and distribute the resulting executable under
terms of your choice, provided that you also meet, for each linked
independent module, the terms and conditions of the license of that
module. An independent module is a module which is not derived from
or based on this library. If you modify this library, you may extend
this exception to your version of the library, but you are not
obligated to do so. If you do not wish to do so, delete this
exception statement from your version. */
package gnu.java.lang.management;
/**
* Provides access to information about the garbage collectors
* of the virtual machine. Garbage collectors are responsible
* for removing unreferenced objects from memory. A garbage
* collector is a type of memory manager, so this interface
* is combined with that of generic memory managers. An instance
* of this bean for each garbage collector is obtained by calling
* {@link ManagementFactory#getGarbageCollectorMXBeans()}.
*
* @author Andrew John Hughes (gnu_andrew@member.fsf.org)
* @since 1.5
*/
final class VMGarbageCollectorMXBeanImpl
{
/**
* Returns the number of collections the garbage collector
* represented by this bean has made. -1 is returned if the
* collection count is undefined.
*
* @param name the name of the garbage collector.
* @return the number of collections made, or -1 if this is
* undefined.
*/
static long getCollectionCount(String name)
{
return -1;
}
/**
* Returns the accumulated number of milliseconds this garbage
* collector has spent freeing the memory used by unreferenced
* objects. -1 is returned if the collection time is undefined.
* Note that the accumulated time may not change, even when the
* collection count increases, if the time taken is sufficiently
* short; this depends on the resolution of the timer used.
*
* @param name the name of the garbage collector.
* @return the accumulated number of milliseconds spent collecting,
* or -1 if this is undefined.
*/
static long getCollectionTime(String name)
{
return -1;
}
}

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/* VMMemoryMXBeanImpl.java - VM impl. of a memory bean
Copyright (C) 2006 Free Software Foundation
This file is part of GNU Classpath.
GNU Classpath is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
GNU Classpath 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 for more details.
You should have received a copy of the GNU General Public License
along with GNU Classpath; see the file COPYING. If not, write to the
Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
02110-1301 USA.
Linking this library statically or dynamically with other modules is
making a combined work based on this library. Thus, the terms and
conditions of the GNU General Public License cover the whole
combination.
As a special exception, the copyright holders of this library give you
permission to link this library with independent modules to produce an
executable, regardless of the license terms of these independent
modules, and to copy and distribute the resulting executable under
terms of your choice, provided that you also meet, for each linked
independent module, the terms and conditions of the license of that
module. An independent module is a module which is not derived from
or based on this library. If you modify this library, you may extend
this exception to your version of the library, but you are not
obligated to do so. If you do not wish to do so, delete this
exception statement from your version. */
package gnu.java.lang.management;
import java.lang.management.MemoryUsage;
/**
* Provides access to information about the memory
* management of the current invocation of the virtual
* machine. Instances of this bean are obtained by calling
* {@link ManagementFactory#getMemoryMXBean()}.
*
* @author Andrew John Hughes (gnu_andrew@member.fsf.org)
* @since 1.5
*/
final class VMMemoryMXBeanImpl
{
/**
* Returns an instance of {@link java.lang.management.MemoryUsage}
* with appropriate initial, used, committed and maximum values
* for the heap. By default, this uses the methods of
* {@link java.lang.Runtime} to provide some of the values.
*
* @return an {@link java.lang.management.MemoryUsage} instance
* for the heap.
*/
static MemoryUsage getHeapMemoryUsage()
{
Runtime runtime = Runtime.getRuntime();
long totalMem = runtime.totalMemory();
return new MemoryUsage(-1, totalMem - runtime.freeMemory(),
totalMem, runtime.maxMemory());
}
/**
* Returns an instance of {@link java.lang.management.MemoryUsage}
* with appropriate initial, used, committed and maximum values
* for non-heap memory.
*
* @return an {@link java.lang.management.MemoryUsage} instance
* for non-heap memory.
*/
static MemoryUsage getNonHeapMemoryUsage()
{
return null;
}
/**
* Returns the number of objects ready to be garbage collected.
*
* @return the number of finalizable objects.
*/
static int getObjectPendingFinalizationCount()
{
return -1;
}
/**
* Returns true if the virtual machine will emit additional
* information when memory is allocated and deallocated. The
* format of the output is left up to the virtual machine.
*
* @return true if verbose class loading output is on.
*/
static boolean isVerbose()
{
return false;
}
/**
* Turns on or off the emission of additional information
* when memory is allocated and deallocated. The format of the
* output is left up to the virtual machine. This method
* may be called by multiple threads concurrently, but there
* is only one global setting of verbosity that is affected.
*
* @param verbose the new setting for verbose class loading
* output.
*/
static void setVerbose(boolean verbose)
{
}
}

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/* VMMemoryManagerMXBeanImpl.java - VM interface for a memory manager bean
Copyright (C) 2006 Free Software Foundation
This file is part of GNU Classpath.
GNU Classpath is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
GNU Classpath 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 for more details.
You should have received a copy of the GNU General Public License
along with GNU Classpath; see the file COPYING. If not, write to the
Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
02110-1301 USA.
Linking this library statically or dynamically with other modules is
making a combined work based on this library. Thus, the terms and
conditions of the GNU General Public License cover the whole
combination.
As a special exception, the copyright holders of this library give you
permission to link this library with independent modules to produce an
executable, regardless of the license terms of these independent
modules, and to copy and distribute the resulting executable under
terms of your choice, provided that you also meet, for each linked
independent module, the terms and conditions of the license of that
module. An independent module is a module which is not derived from
or based on this library. If you modify this library, you may extend
this exception to your version of the library, but you are not
obligated to do so. If you do not wish to do so, delete this
exception statement from your version. */
package gnu.java.lang.management;
import java.lang.management.ManagementFactory;
import java.lang.management.MemoryPoolMXBean;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
/**
* Provides access to information about the memory managers
* of the virtual machine. An instance of this bean for each
* memory manager is obtained by calling
* {@link ManagementFactory#getMemoryManagerMXBeans()}.
*
* @author Andrew John Hughes (gnu_andrew@member.fsf.org)
* @since 1.5
*/
final class VMMemoryManagerMXBeanImpl
{
/**
* Returns an array containing the names of the memory pools
* this memory manager manages.
*
* @param name the name of the memory manager.
* @return an array containing the name of each memory pool
* this manager is responsible for.
*/
static String[] getMemoryPoolNames(String name)
{
List managedPools = new ArrayList();
Iterator beans = ManagementFactory.getMemoryPoolMXBeans().iterator();
while (beans.hasNext())
{
MemoryPoolMXBean bean = (MemoryPoolMXBean) beans.next();
String[] managers = bean.getMemoryManagerNames();
for (int a = 0; a < managers.length; ++a)
if (managers[a].equals(name))
{
managedPools.add(bean.getName());
break;
}
}
return (String[]) managedPools.toArray(new String[managedPools.size()]);
}
/**
* Returns true if this memory manager is still valid. A memory
* manager becomes invalid when it is removed by the virtual machine
* and no longer used.
*
* @param name the name of the memory manager.
* @return true if this memory manager is valid.
*/
static boolean isValid(String name)
{
return false;
}
}

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/* MemoryPoolMXBeanImpl.java - VM interface for memory pool beans
Copyright (C) 2006 Free Software Foundation
This file is part of GNU Classpath.
GNU Classpath is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
GNU Classpath 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 for more details.
You should have received a copy of the GNU General Public License
along with GNU Classpath; see the file COPYING. If not, write to the
Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
02110-1301 USA.
Linking this library statically or dynamically with other modules is
making a combined work based on this library. Thus, the terms and
conditions of the GNU General Public License cover the whole
combination.
As a special exception, the copyright holders of this library give you
permission to link this library with independent modules to produce an
executable, regardless of the license terms of these independent
modules, and to copy and distribute the resulting executable under
terms of your choice, provided that you also meet, for each linked
independent module, the terms and conditions of the license of that
module. An independent module is a module which is not derived from
or based on this library. If you modify this library, you may extend
this exception to your version of the library, but you are not
obligated to do so. If you do not wish to do so, delete this
exception statement from your version. */
package gnu.java.lang.management;
import java.lang.management.MemoryUsage;
/**
* Provides access to information on the memory resources or
* pools used by the current invocation of the virtual machine.
*
* @author Andrew John Hughes (gnu_andrew@member.fsf.org)
* @since 1.5
*/
final class VMMemoryPoolMXBeanImpl
{
/**
* Returns memory usage statistics for the specified pool
* just after a best-effort attempt to free memory. This
* is valid only for certain garbage collectors.
*
* @param name the name of the pool to obtain statistics on.
* @return a {@link java.lang.management.MemoryUsage} object
* containing the statistics or <code>null</code>
* if this pool does not support such statistics.
*/
static MemoryUsage getCollectionUsage(String name)
{
return null;
}
/**
* Returns the collection usage threshold for the specified pool.
* This is only called if this functionality is supported
* by the virtual machine (i.e. the appropriate property,
* <code>gnu.java.lang.management.CollectionUsageThresholdSupport</code>,
* is defined). The value is initially zero.
*
* @param name the name of the pool to obtain statistics on.
* @return the collection usage threshold.
*/
static long getCollectionUsageThreshold(String name)
{
return -1;
}
/**
* Returns the number of times the collection usage threshold
* has been met or exceeded by the specified pool.
* This is only called if this functionality is supported
* by the virtual machine (i.e. the appropriate property,
* <code>gnu.java.lang.management.CollectionUsageThresholdSupport</code>,
* is defined).
*
* @param name the name of the pool to obtain statistics on.
* @return the collection usage threshold count.
*/
static long getCollectionUsageThresholdCount(String name)
{
return -1;
}
/**
* Returns an array of names of memory managers which manage
* the specified pool.
*
* @param name the name of the pool to obtain statistics on.
* @return a list of memory managers for the pool.
*/
static String[] getMemoryManagerNames(String name)
{
return new String[0];
}
/**
* Returns the peak usage level of the specified pool.
* This is only called if the pool is valid.
*
* @param name the name of the pool to obtain statistics on.
* @return a {@link java.lang.management.MemoryUsage} object
* containing the statistics.
*/
static MemoryUsage getPeakUsage(String name)
{
return null;
}
/**
* Returns the type of memory used by the specified pool.
* The value must be either "HEAP" or "NON_HEAP".
*
* @param name the name of the pool to obtain statistics on.
* @return the type of the given pool.
*/
static String getType(String name)
{
return "HEAP";
}
/**
* Returns the current usage level of the specified pool.
* This is only called if the pool is valid.
*
* @param name the name of the pool to obtain statistics on.
* @return a {@link java.lang.management.MemoryUsage} object
* containing the statistics.
*/
static MemoryUsage getUsage(String name)
{
return null;
}
/**
* Returns the usage threshold for the specified pool.
* This is only called if this functionality is supported
* by the virtual machine (i.e. the appropriate property,
* <code>gnu.java.lang.management.UsageThresholdSupport</code>,
* is defined). The value is initially defined by the
* virtual machine.
*
* @param name the name of the pool to obtain statistics on.
* @return the usage threshold.
*/
static long getUsageThreshold(String name)
{
return -1;
}
/**
* Returns the number of times the usage threshold
* has been met or exceeded by the specified pool.
* This is only called if this functionality is supported
* by the virtual machine (i.e. the appropriate property,
* <code>gnu.java.lang.management.UsageThresholdSupport</code>,
* is defined).
*
* @param name the name of the pool to obtain statistics on.
* @return the usage threshold count.
*/
static long getUsageThresholdCount(String name)
{
return -1;
}
/**
* Returns true if the specified pool is still valid i.e.
* it is still in use by the virtual machine.
*
* @param name the name of the pool to check the validity of.
* @return true if the pool is valid.
*/
static boolean isValid(String name)
{
return false;
}
/**
* Resets the peak usage level to the current usage level for
* the specified pool.
*
* @param name the name of the pool to reset the peak usage of.
*/
static void resetPeakUsage(String name)
{
}
/**
* Sets the collection usage threshold for the specified
* pool to the supplied value.
* This is only called if this functionality is supported
* by the virtual machine (i.e. the appropriate property,
* <code>gnu.java.lang.management.CollectionUsageThresholdSupport</code>,
* is defined).
*
* @param name the name of the pool to set the threshold of.
* @param threshold the new threshold level.
*/
static void setCollectionUsageThreshold(String name, long threshold)
{
}
/**
* Sets the usage threshold for the specified pool to the supplied value.
* This is only called if this functionality is supported
* by the virtual machine (i.e. the appropriate property,
* <code>gnu.java.lang.management.UsageThresholdSupport</code>,
* is defined).
*
* @param name the name of the pool to set the threshold of.
* @param threshold the new threshold level.
*/
static void setUsageThreshold(String name, long threshold)
{
}
}

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/* VMRuntimeMXBeanImpl.java - VM implementation of an runtime bean
Copyright (C) 2006 Free Software Foundation
This file is part of GNU Classpath.
GNU Classpath is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
GNU Classpath 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 for more details.
You should have received a copy of the GNU General Public License
along with GNU Classpath; see the file COPYING. If not, write to the
Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
02110-1301 USA.
Linking this library statically or dynamically with other modules is
making a combined work based on this library. Thus, the terms and
conditions of the GNU General Public License cover the whole
combination.
As a special exception, the copyright holders of this library give you
permission to link this library with independent modules to produce an
executable, regardless of the license terms of these independent
modules, and to copy and distribute the resulting executable under
terms of your choice, provided that you also meet, for each linked
independent module, the terms and conditions of the license of that
module. An independent module is a module which is not derived from
or based on this library. If you modify this library, you may extend
this exception to your version of the library, but you are not
obligated to do so. If you do not wish to do so, delete this
exception statement from your version. */
package gnu.java.lang.management;
import gnu.classpath.SystemProperties;
/**
* Provides access to information about the virtual machine.
*
* @author Andrew John Hughes (gnu_andrew@member.fsf.org)
* @since 1.5
*/
final class VMRuntimeMXBeanImpl
{
/**
* Returns the command-line arguments supplied
* to the virtual machine, excluding those supplied
* to <code>main()</code>.
*
* @return the command-line arguments.
*/
static String[] getInputArguments()
{
return new String[0];
}
/**
* Returns a developer-chosen name for the virtual
* machine, which may differ over different running
* instances of the same virtual machine binary.
* For example, this may include the particular
* process identifier used by this instance or
* the host name of the machine on which it is
* running. The intention is that this name refers
* to the precise entity that the other data supplied
* by the bean refers to, rather than the VM in general.
*
* @return the custom name of the VM.
*/
static String getName()
{
return SystemProperties.getProperty("java.vm.name") + " " +
SystemProperties.getProperty("java.vm.version");
}
/**
* The time in milliseconds at which the virtual
* machine was started. This method is only executed
* once (for efficency), as the value is not expected
* to change.
*
* @return the VM start time.
*/
static long getStartTime()
{
return -1;
}
}

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/* VMThreadMXBeanImpl.java - VM impl. of a thread bean
Copyright (C) 2006 Free Software Foundation
This file is part of GNU Classpath.
GNU Classpath is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
GNU Classpath 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 for more details.
You should have received a copy of the GNU General Public License
along with GNU Classpath; see the file COPYING. If not, write to the
Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
02110-1301 USA.
Linking this library statically or dynamically with other modules is
making a combined work based on this library. Thus, the terms and
conditions of the GNU General Public License cover the whole
combination.
As a special exception, the copyright holders of this library give you
permission to link this library with independent modules to produce an
executable, regardless of the license terms of these independent
modules, and to copy and distribute the resulting executable under
terms of your choice, provided that you also meet, for each linked
independent module, the terms and conditions of the license of that
module. An independent module is a module which is not derived from
or based on this library. If you modify this library, you may extend
this exception to your version of the library, but you are not
obligated to do so. If you do not wish to do so, delete this
exception statement from your version. */
package gnu.java.lang.management;
import java.lang.management.ThreadInfo;
/**
* Provides access to information about the threads
* of the virtual machine. An instance of this bean is
* obtained by calling
* {@link ManagementFactory#getThreadMXBean()}.
* See {@link java.lang.management.ThreadMXBean} for
* full documentation.
*
* @author Andrew John Hughes (gnu_andrew@member.fsf.org)
* @since 1.5
*/
final class VMThreadMXBeanImpl
{
/**
* Cache of how many threads were found.
*/
private static int filled;
/**
* Returns the ids of cycles of deadlocked threads, occurring
* due to monitor ownership.
*
* @return the ids of the deadlocked threads.
*/
static long[] findMonitorDeadlockedThreads()
{
return new long[0];
}
/* This is the same as in Thread.getAllStackTraces() */
static Thread[] getAllThreads()
{
ThreadGroup group = Thread.currentThread().getThreadGroup();
while (group.getParent() != null)
group = group.getParent();
int arraySize = group.activeCount();
Thread[] threadList = new Thread[arraySize];
filled = group.enumerate(threadList);
while (filled == arraySize)
{
arraySize *= 2;
threadList = new Thread[arraySize];
filled = group.enumerate(threadList);
}
return threadList;
}
/**
* Returns the id of all live threads at the time of execution.
*
* @return the live thread ids.
*/
static long[] getAllThreadIds()
{
Thread[] threadList = getAllThreads();
long[] ids = new long[filled];
for (int a = 0; a < filled; ++a)
ids[a] = threadList[a].getId();
return ids;
}
/**
* Returns the number of nanoseconds of CPU time
* the current thread has used in total. This is
* only called if this feature is enabled and
* supported.
*
* @return the nanoseconds of CPU time used by
* the current thread.
*/
static long getCurrentThreadCpuTime()
{
return -1;
}
/**
* Returns the number of nanoseconds of user time
* the current thread has used in total. This is
* only called if this feature is enabled and
* supported.
*
* @return the nanoseconds of user time used by
* the current thread.
*/
static long getCurrentThreadUserTime()
{
return -1;
}
/**
* Returns the number of live daemon threads.
*
* @return the number of live daemon threads.
*/
static int getDaemonThreadCount()
{
Thread[] threadList = getAllThreads();
int daemonCount = 0;
for (int a = 0; a < filled; ++a)
{
if (threadList[a].isDaemon())
++daemonCount;
}
return daemonCount;
}
/**
* Returns the current peak number of live threads.
*
* @return the peak number of live threads.
*/
static int getPeakThreadCount()
{
return -1;
}
/**
* Returns the number of live threads.
*
* @return the number of live threads.
*/
static int getThreadCount()
{
getAllThreads();
return filled;
}
/**
* Returns the number of nanoseconds of CPU time
* the specified thread has used in total. This is
* only called if this feature is enabled and
* supported.
*
* @param id the thread to obtain statistics on.
* @return the nanoseconds of CPU time used by
* the thread.
*/
static long getThreadCpuTime(long id)
{
return -1;
}
/**
* Returns the {@link java.lang.management.ThreadInfo}
* which corresponds to the specified id.
*
* @param id the id of the thread.
* @param maxDepth the depth of the stack trace.
* @return the corresponding <code>ThreadInfo</code>.
*/
static ThreadInfo getThreadInfoForId(long id, int maxDepth)
{
return null;
}
/**
* Returns the number of nanoseconds of user time
* the specified thread has used in total. This is
* only called if this feature is enabled and
* supported.
*
* @param id the thread to obtain statistics on.
* @return the nanoseconds of user time used by
* the thread.
*/
static long getThreadUserTime(long id)
{
return -1;
}
/**
* Returns the total number of threads that have
* been started over the lifetime of the virtual
* machine.
*
* @return the total number of threads started.
*/
static long getTotalStartedThreadCount()
{
return -1;
}
/**
* Resets the peak thread count to the current
* number of live threads.
*/
static void resetPeakThreadCount()
{
}
}

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/* VMChannel.java -- Native interface suppling channel operations.
Copyright (C) 2006 Free Software Foundation, Inc.
This file is part of GNU Classpath.
GNU Classpath is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
GNU Classpath 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 for more details.
You should have received a copy of the GNU General Public License
along with GNU Classpath; see the file COPYING. If not, write to the
Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
02110-1301 USA.
Linking this library statically or dynamically with other modules is
making a combined work based on this library. Thus, the terms and
conditions of the GNU General Public License cover the whole
combination.
As a special exception, the copyright holders of this library give you
permission to link this library with independent modules to produce an
executable, regardless of the license terms of these independent
modules, and to copy and distribute the resulting executable under
terms of your choice, provided that you also meet, for each linked
independent module, the terms and conditions of the license of that
module. An independent module is a module which is not derived from
or based on this library. If you modify this library, you may extend
this exception to your version of the library, but you are not
obligated to do so. If you do not wish to do so, delete this
exception statement from your version. */
package gnu.java.nio;
import gnu.classpath.Configuration;
import gnu.java.net.PlainSocketImpl;
import gnu.java.nio.PipeImpl.SinkChannelImpl;
import gnu.java.nio.PipeImpl.SourceChannelImpl;
import gnu.java.nio.channels.FileChannelImpl;
import java.io.IOException;
import java.nio.ByteBuffer;
/**
* Native interface to support configuring of channel to run in a non-blocking
* manner and support scatter/gather io operations.
*
* @author Michael Barker <mike@middlesoft.co.uk>
*
*/
public class VMChannel
{
private final int fd;
private VMChannel(int fd)
{
this.fd = fd;
}
public static VMChannel getVMChannel(PlainSocketImpl socket)
{
return new VMChannel(socket.getNativeFD());
}
public static VMChannel getVMChannel(SourceChannelImpl source)
{
return new VMChannel(source.getNativeFD());
}
public static VMChannel getVMChannel(SinkChannelImpl sink)
{
return new VMChannel(sink.getNativeFD());
}
public static VMChannel getVMChannel(FileChannelImpl file)
{
return null; // XXX - return new VMChannel(file.getNativeFD());
}
/**
* Set the file descriptor to have the required blocking
* setting.
*
* @param fd
* @param blocking
*/
public void setBlocking(int fd, boolean blocking)
{
throw new RuntimeException("XXX - Implement me!");
}
public void setBlocking(boolean blocking)
{
setBlocking(fd, blocking);
}
/**
* Reads a byte buffer directly using the supplied file descriptor.
* Assumes that the buffer is a DirectBuffer.
*
* @param fd Native file descriptor to read from.
* @param dst Direct Byte Buffer to read to.
* @return Number of bytes read.
* @throws IOException If an error occurs or dst is not a direct buffers.
*/
int read(int fd, ByteBuffer dst)
throws IOException
{
throw new IOException("XXX - Implement me!");
}
public int read(ByteBuffer dst)
throws IOException
{
return read(fd, dst);
}
/**
* Reads into byte buffers directly using the supplied file descriptor.
* Assumes that the buffer list contains DirectBuffers. Will perform a
* scattering read.
*
* @param fd Native file descriptor to read from.
* @param dsts An array direct byte buffers.
* @param offset Index of the first buffer to read to.
* @param length The number of buffers to read to.
* @return Number of bytes read.
* @throws IOException If an error occurs or the dsts are not direct buffers.
*/
long readScattering(int fd, ByteBuffer[] dsts, int offset, int length)
throws IOException
{
throw new IOException("XXX - Implement me!");
}
public long readScattering(ByteBuffer[] dsts, int offset, int length)
throws IOException
{
if (offset + length > dsts.length)
throw new IndexOutOfBoundsException("offset + length > dsts.length");
return readScattering(fd, dsts, offset, length);
}
/**
* Writes from a direct byte bufer using the supplied file descriptor.
* Assumes the buffer is a DirectBuffer.
*
* @param fd
* @param src
* @return Number of bytes written.
* @throws IOException
*/
int write(int fd, ByteBuffer src)
throws IOException
{
throw new IOException("XXX - Implement me!");
}
public int write(ByteBuffer src)
throws IOException
{
return write(fd, src);
}
/**
* Writes from byte buffers directly using the supplied file descriptor.
* Assumes the that buffer list constains DirectBuffers. Will perform
* as gathering write.
*
* @param fd
* @param srcs
* @param offset
* @param length
* @return Number of bytes written.
* @throws IOException
*/
long writeGathering(int fd, ByteBuffer[] srcs, int offset, int length)
throws IOException
{
throw new IOException("XXX - Implement me!");
}
public long writeGathering(ByteBuffer[] srcs, int offset, int length)
throws IOException
{
if (offset + length > srcs.length)
throw new IndexOutOfBoundsException("offset + length > srcs.length");
return writeGathering(fd, srcs, offset, length);
}
}