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. --- .../management/VMGarbageCollectorMXBeanImpl.java | 80 ++++++++++++++++++++++ 1 file changed, 80 insertions(+) create mode 100644 libjava/gnu/java/lang/management/VMGarbageCollectorMXBeanImpl.java (limited to 'libjava/gnu/java/lang/management/VMGarbageCollectorMXBeanImpl.java') diff --git a/libjava/gnu/java/lang/management/VMGarbageCollectorMXBeanImpl.java b/libjava/gnu/java/lang/management/VMGarbageCollectorMXBeanImpl.java new file mode 100644 index 000000000..2a202849a --- /dev/null +++ b/libjava/gnu/java/lang/management/VMGarbageCollectorMXBeanImpl.java @@ -0,0 +1,80 @@ +/* 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 native long getCollectionCount(String name); + + /** + * 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 native long getCollectionTime(String name); + +} -- cgit v1.2.3