From f40a51f2c912b89e6bf1c33c45f6a1237b07abd4 Mon Sep 17 00:00:00 2001 From: Andrew John Hughes Date: Tue, 26 Dec 2006 02:35:21 +0000 Subject: 2006-12-26 Andrew John Hughes * NEWS: Mention 1.6 support for java.lang.management * configure.ac: Check for getloadavg. * examples/gnu/classpath/examples/management/TestOS.java: Print system load average. * gnu/java/lang/management/OperatingSystemMXBeanImpl.java: (getSystemLoadAverage()): Implemented. * include/Makefile.am: Add new header. * include/gnu_java_awt_peer_gtk_CairoGraphics2D.h: Regenerated. * include/gnu_java_lang_management_VMOperatingSystemMXBeanImpl.h: Generated. * java/lang/management/OperatingSystemMXBean.java: (getSystemLoadAverage()): Implemented. * native/jni/java-lang/Makefile.am: Add new native code. * native/jni/java-lang/gnu_java_lang_management_VMOperatingSystemMXBeanImpl.c: New file. * vm/reference/gnu/java/lang/management/VMOperatingSystemMXBeanImpl.java: Likewise. --- java/lang/management/OperatingSystemMXBean.java | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) (limited to 'java/lang/management/OperatingSystemMXBean.java') diff --git a/java/lang/management/OperatingSystemMXBean.java b/java/lang/management/OperatingSystemMXBean.java index 2430a9fbf..ed38285a5 100644 --- a/java/lang/management/OperatingSystemMXBean.java +++ b/java/lang/management/OperatingSystemMXBean.java @@ -86,6 +86,22 @@ public interface OperatingSystemMXBean */ String getName(); + /** + * Returns the system load average for the last minute, or -1 + * if this is unavailable. The availability and calculation + * of the load average is system-dependent, but is usually + * a damped time-dependent average obtained by monitoring the + * number of queued and running processes. It is expected + * that this method will be called frequently to monitor the + * average over time, so it may not be implemented on systems + * where such a call is expensive. + * + * @return the system load average for the last minute, or -1 + * if this is unavailable. + * @since 1.6 + */ + double getSystemLoadAverage(); + /** * Returns the version of the underlying operating system. This * is equivalent to obtaining the os.version property -- cgit v1.2.1