1 /* 2 * Copyright (c) 2005, 2013, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. Oracle designates this 8 * particular file as subject to the "Classpath" exception as provided 9 * by Oracle in the LICENSE file that accompanied this code. 10 * 11 * This code is distributed in the hope that it will be useful, but WITHOUT 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14 * version 2 for more details (a copy is included in the LICENSE file that 15 * accompanied this code). 16 * 17 * You should have received a copy of the GNU General Public License version 18 * 2 along with this work; if not, write to the Free Software Foundation, 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 20 * 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 22 * or visit www.oracle.com if you need additional information or have any 23 * questions. 24 */ 25 26 package com.sun.jdi; 27 28 /** 29 * Information about a monitor owned by a thread. 30 * 31 * @author Swamy Venkataramanappa 32 * @since 1.6 33 */ 34 35 @jdk.Exported 36 public interface MonitorInfo extends Mirror { 37 38 /** 39 * Returns the {@link ObjectReference} object for the monitor. 40 * @return the {@link ObjectReference} object for the monitor. 41 * @throws InvalidStackFrameException if the associated stack 42 * frame has become invalid. Once the frame's thread is resumed, 43 * the stack frame is no longer valid. 44 * @see ThreadReference#ownedMonitorsAndFrames 45 * @since 1.6 46 */ monitor()47 public ObjectReference monitor(); 48 49 /** 50 * Returns the stack depth at which this monitor was 51 * acquired by the owning thread. Returns -1 if the 52 * implementation cannot determine the stack depth 53 * (e.g., for monitors acquired by JNI MonitorEnter). 54 * @return the stack depth at which this monitor was 55 * acquired by the owning thread. 56 * @throws InvalidStackFrameException if the associated stack 57 * frame has become invalid. Once the frame's thread is resumed, 58 * the stack frame is no longer valid. 59 * @see ThreadReference#ownedMonitorsAndFrames 60 */ stackDepth()61 public int stackDepth(); 62 63 /** 64 * Returns a {@link ThreadReference} object for the thread that 65 * owns the monitor. 66 * @return a {@link ThreadReference} object for the thread that 67 * owns the monitor. 68 * @throws InvalidStackFrameException if the associated stack 69 * frame has become invalid. Once the frame's thread is resumed, 70 * the stack frame is no longer valid. 71 * @see ThreadReference#frame 72 */ thread()73 ThreadReference thread(); 74 } 75