66 lines
2.4 KiB
C
66 lines
2.4 KiB
C
/* VMOperatingSystemMXBeanImpl.c - gnu.java.lang.management native functions
|
|
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. */
|
|
|
|
#include <config.h>
|
|
|
|
#if defined HAVE_SYS_LOADAVG_H /* Get getloadavg() on Solaris 9 */
|
|
#include <sys/loadavg.h>
|
|
#else
|
|
#include <stdlib.h>
|
|
#endif
|
|
|
|
#include "gnu_java_lang_management_VMOperatingSystemMXBeanImpl.h"
|
|
|
|
/*
|
|
* Class: gnu_java_lang_management_VMOperatingSystemMXBeanImpl
|
|
* Method: getSystemLoadAverage
|
|
* Signature: ()D
|
|
*/
|
|
JNIEXPORT jdouble JNICALL
|
|
Java_gnu_java_lang_management_VMOperatingSystemMXBeanImpl_getSystemLoadAverage (JNIEnv * env __attribute__ ((__unused__)), jclass cls __attribute__ ((__unused__)))
|
|
{
|
|
#ifdef HAVE_GETLOADAVG
|
|
double avg[1];
|
|
int nos = getloadavg(avg, 1);
|
|
if (nos == 1)
|
|
return avg[0];
|
|
else
|
|
#endif
|
|
return -1;
|
|
}
|