| /* 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; |
| } |