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[/] [openrisc/] [trunk/] [gnu-dev/] [or1k-gcc/] [libjava/] [gnu/] [classpath/] [jdwp/] [VMFrame.java] - Rev 771
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/* VMFrame.java -- Reference implementation of VM hooks for JDWP Frame access. Copyright (C) 2005, 2006, 2007 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 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.classpath.jdwp; import gnu.classpath.jdwp.util.Location; import gnu.classpath.jdwp.value.Value; /** * Reference implementation of VM hooks for JDWP Frame access. * * @author aluchko */ public class VMFrame { /** * Returns the size of a frame ID over JDWP */ public static final int SIZE = 8; // The thread this frame resides in private Thread thread; //The object of this frame private Object obj; // The current location of this frame private Location loc; // id of this frame private long id; /** * Create a new VMFrame object. * * @param thr a Thread, the thread this frame is in * @param frame_id a long, the jframeID of this frame * @param frame_loc a Location, the location of this frame */ public VMFrame(Thread thr, long frame_id, Location frame_loc, Object frame_obj) { thread = thr; id = frame_id; loc = frame_loc; obj = frame_obj; } /** * Gets the current location of the frame. */ public Location getLocation() { return loc; } /** * Returns the value of the variable in the given slot. * * @param slot the slot containing the variable */ public native Value getValue(int slot, byte sig); /** * Assigns the given variable to the given value. * @param slot The slot which contains the variable * @param value The value to assign the variable to */ public native void setValue(int slot, Value value); /** * Get the thread this frame is in. */ public Thread getThread() { return thread; } /** * Get the object which is represented by 'this' in the context of the frame, * returns null if the method is native or static. */ public Object getObject() { return obj; } /** * Get the frameID * @return an id which is unique within the scope of the VM */ public long getId() { return id; } }
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