From 554fd8c5195424bdbcabf5de30fdc183aba391bd Mon Sep 17 00:00:00 2001 From: upstream source tree Date: Sun, 15 Mar 2015 20:14:05 -0400 Subject: obtained gcc-4.6.4.tar.bz2 from upstream website; verified gcc-4.6.4.tar.bz2.sig; imported gcc-4.6.4 source tree from verified upstream tarball. downloading a git-generated archive based on the 'upstream' tag should provide you with a source tree that is binary identical to the one extracted from the above tarball. if you have obtained the source via the command 'git clone', however, do note that line-endings of files in your working directory might differ from line-endings of the respective files in the upstream repository. --- .../lang/management/VMMemoryPoolMXBeanImpl.java | 195 +++++++++++++++++++++ 1 file changed, 195 insertions(+) create mode 100644 libjava/gnu/java/lang/management/VMMemoryPoolMXBeanImpl.java (limited to 'libjava/gnu/java/lang/management/VMMemoryPoolMXBeanImpl.java') diff --git a/libjava/gnu/java/lang/management/VMMemoryPoolMXBeanImpl.java b/libjava/gnu/java/lang/management/VMMemoryPoolMXBeanImpl.java new file mode 100644 index 000000000..723d4e897 --- /dev/null +++ b/libjava/gnu/java/lang/management/VMMemoryPoolMXBeanImpl.java @@ -0,0 +1,195 @@ +/* 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 null + * if this pool does not support such statistics. + */ + static native MemoryUsage getCollectionUsage(String name); + + /** + * 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, + * gnu.java.lang.management.CollectionUsageThresholdSupport, + * is defined). The value is initially zero. + * + * @param name the name of the pool to obtain statistics on. + * @return the collection usage threshold. + */ + static native long getCollectionUsageThreshold(String name); + + /** + * 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, + * gnu.java.lang.management.CollectionUsageThresholdSupport, + * is defined). + * + * @param name the name of the pool to obtain statistics on. + * @return the collection usage threshold count. + */ + static native long getCollectionUsageThresholdCount(String name); + + /** + * 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 native String[] getMemoryManagerNames(String name); + + /** + * 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 native MemoryUsage getPeakUsage(String name); + + /** + * 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 native String getType(String name); + + /** + * 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 native MemoryUsage getUsage(String name); + + /** + * 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, + * gnu.java.lang.management.UsageThresholdSupport, + * 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 native long getUsageThreshold(String name); + + /** + * 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, + * gnu.java.lang.management.UsageThresholdSupport, + * is defined). + * + * @param name the name of the pool to obtain statistics on. + * @return the usage threshold count. + */ + static native long getUsageThresholdCount(String name); + + /** + * 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 native boolean isValid(String name); + + /** + * 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 native 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, + * gnu.java.lang.management.CollectionUsageThresholdSupport, + * is defined). + * + * @param name the name of the pool to set the threshold of. + * @param threshold the new threshold level. + */ + static native 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, + * gnu.java.lang.management.UsageThresholdSupport, + * is defined). + * + * @param name the name of the pool to set the threshold of. + * @param threshold the new threshold level. + */ + static native void setUsageThreshold(String name, long threshold); + +} -- cgit v1.2.3