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1 /*
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2 * Copyright 1998-2005 Sun Microsystems, Inc. All Rights Reserved.
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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4 *
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5 * This code is free software; you can redistribute it and/or modify it
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6 * under the terms of the GNU General Public License version 2 only, as
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7 * published by the Free Software Foundation.
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8 *
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9 * This code is distributed in the hope that it will be useful, but WITHOUT
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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12 * version 2 for more details (a copy is included in the LICENSE file that
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13 * accompanied this code).
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14 *
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15 * You should have received a copy of the GNU General Public License version
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16 * 2 along with this work; if not, write to the Free Software Foundation,
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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18 *
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19 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
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20 * CA 95054 USA or visit www.sun.com if you need additional information or
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21 * have any questions.
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22 *
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23 */
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24
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25 inline intptr_t ObjectMonitor::is_entered(TRAPS) const {
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26 if (THREAD == _owner || THREAD->is_lock_owned((address) _owner)) {
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27 return 1;
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28 }
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29 return 0;
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30 }
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31
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32 inline markOop ObjectMonitor::header() const {
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33 return _header;
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34 }
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35
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36 inline void ObjectMonitor::set_header(markOop hdr) {
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37 _header = hdr;
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38 }
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39
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40 inline intptr_t ObjectMonitor::count() const {
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41 return _count;
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42 }
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43
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44 inline void ObjectMonitor::set_count(intptr_t count) {
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45 _count= count;
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46 }
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47
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48 inline intptr_t ObjectMonitor::waiters() const {
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49 return _waiters;
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50 }
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51
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52 inline void* ObjectMonitor::owner() const {
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53 return _owner;
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54 }
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55
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56 inline void ObjectMonitor::clear() {
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57 assert(_header, "Fatal logic error in ObjectMonitor header!");
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58 assert(_count == 0, "Fatal logic error in ObjectMonitor count!");
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59 assert(_waiters == 0, "Fatal logic error in ObjectMonitor waiters!");
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60 assert(_recursions == 0, "Fatal logic error in ObjectMonitor recursions!");
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61 assert(_object, "Fatal logic error in ObjectMonitor object!");
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62 assert(_owner == 0, "Fatal logic error in ObjectMonitor owner!");
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63
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64 _header = NULL;
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65 _object = NULL;
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66 }
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67
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68
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69 inline void* ObjectMonitor::object() const {
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70 return _object;
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71 }
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72
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73 inline void* ObjectMonitor::object_addr() {
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74 return (void *)(&_object);
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75 }
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76
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77 inline void ObjectMonitor::set_object(void* obj) {
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78 _object = obj;
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79 }
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80
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81 inline bool ObjectMonitor::check(TRAPS) {
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82 if (THREAD != _owner) {
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83 if (THREAD->is_lock_owned((address) _owner)) {
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84 _owner = THREAD; // regain ownership of inflated monitor
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85 OwnerIsThread = 1 ;
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86 assert (_recursions == 0, "invariant") ;
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87 } else {
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88 check_slow(THREAD);
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89 return false;
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90 }
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91 }
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92 return true;
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93 }
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94
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95
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96 // return number of threads contending for this monitor
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97 inline intptr_t ObjectMonitor::contentions() const {
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98 return _count;
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99 }
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100
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101 inline void ObjectMonitor::set_owner(void* owner) {
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102 _owner = owner;
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103 _recursions = 0;
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104 _count = 0;
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105 }
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106
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107
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108 // here are the platform-dependent bodies:
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109
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110 # include "incls/_objectMonitor_pd.inline.hpp.incl"
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