Kstat.java revision 7c478bd95313f5f23a4c958a745db2134aa03244
/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (the "License"). You may not use this file except in compliance
* with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 2003 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*
* ident "%Z%%M% %I% %E% SMI"
*/
/**
* Wraps <code>libkstat(3lib)</code>. See
*/
public final class Kstat {
/**
* Pointer to native <code>kstat_ctl_t</code>.
*/
private long kctl;
/**
* Pointer to native <code>kstat_t</code>.
*/
private long ksp;
{
}
/**
* Returns the kstat's <code>ks_snaptime</code> field.
*/
public native HRTime getSnapTime();
/**
* Returns the kstat's <code>ks_crtime</code> field.
*/
public native HRTime getCreationTime();
/**
* Returns the named value -- the value of the named kstat, or
* field in a raw kstat, as applicable, and available. Returns
* <i>null</i> if no such named kstat or field is available.
*
* @throws KstatTypeNotSupportedException if the raw kstat is not
* understood. (Presenstly, none are.)
*/
throws KstatTypeNotSupportedException;
/**
* Invokes <code>kstat_read(3kstat)</code> for tho underlying kstat.
* Throws KstatException if the native function returns an error.
*/
public native void read() throws KstatReadException;
}