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author | Andrew John Hughes <gnu_andrew@member.fsf.org> | 2006-06-11 21:57:14 +0000 |
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committer | Andrew John Hughes <gnu_andrew@member.fsf.org> | 2006-06-11 21:57:14 +0000 |
commit | c459361c2aac54c0245b341c31c1f05ff874f1a2 (patch) | |
tree | 8441bd6cdfffcbf888caf1cce9e29be85014d7c2 /vm | |
parent | 8ace3af577b4314374a3cc74fdeae04a0733f7de (diff) | |
download | classpath-c459361c2aac54c0245b341c31c1f05ff874f1a2.tar.gz |
2006-06-11 Andrew John Hughes <gnu_andrew@member.fsf.org>
* NEWS:
Mention new VM interface and use of properties.
* doc/vmintegration.texinfo:
Update with new gnu.java.lang.management section.
* gnu/java/lang/management/RuntimeMXBeanImpl.java:
New file.
* java/lang/management/ManagementFactory.java:
(getRuntimeMXBean()): Implemented.
* vm/reference/gnu/java/lang/management/RuntimeMXBeanImpl.java:
New VM interface file.
Diffstat (limited to 'vm')
-rw-r--r-- | vm/reference/gnu/java/lang/management/VMRuntimeMXBeanImpl.java | 89 |
1 files changed, 89 insertions, 0 deletions
diff --git a/vm/reference/gnu/java/lang/management/VMRuntimeMXBeanImpl.java b/vm/reference/gnu/java/lang/management/VMRuntimeMXBeanImpl.java new file mode 100644 index 000000000..32a866046 --- /dev/null +++ b/vm/reference/gnu/java/lang/management/VMRuntimeMXBeanImpl.java @@ -0,0 +1,89 @@ +/* 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 native String[] getInputArguments(); + + /** + * 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 native long getStartTime(); + +} |