jdk8-mips64-public/hotspot: src/share/vm/runtime/objectMonitor.inline.hpp@fa6adc194d48

8064667: Add -XX:+CheckEndorsedAndExtDirs flag to JDK 8
Reviewed-by: coleenp, ccheung

     1 /*

     2  * Copyright (c) 1998, 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.

     8  *

     9  * This code is distributed in the hope that it will be useful, but WITHOUT

    10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

    11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

    12  * version 2 for more details (a copy is included in the LICENSE file that

    13  * accompanied this code).

    14  *

    15  * You should have received a copy of the GNU General Public License version

    16  * 2 along with this work; if not, write to the Free Software Foundation,

    17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

    18  *

    19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

    20  * or visit www.oracle.com if you need additional information or have any

    21  * questions.

    22  *

    23  */

    25 #ifndef SHARE_VM_RUNTIME_OBJECTMONITOR_INLINE_HPP

    26 #define SHARE_VM_RUNTIME_OBJECTMONITOR_INLINE_HPP

    28 inline intptr_t ObjectMonitor::is_entered(TRAPS) const {

    29   if (THREAD == _owner || THREAD->is_lock_owned((address) _owner)) {

    30     return 1;

    31   }

    32   return 0;

    33 }

    35 inline markOop ObjectMonitor::header() const {

    36   return _header;

    37 }

    39 inline void ObjectMonitor::set_header(markOop hdr) {

    40   _header = hdr;

    41 }

    43 inline intptr_t ObjectMonitor::count() const {

    44   return _count;

    45 }

    47 inline void ObjectMonitor::set_count(intptr_t count) {

    48   _count= count;

    49 }

    51 inline intptr_t ObjectMonitor::waiters() const {

    52   return _waiters;

    53 }

    55 inline void* ObjectMonitor::owner() const {

    56   return _owner;

    57 }

    59 inline void ObjectMonitor::clear() {

    60   assert(_header, "Fatal logic error in ObjectMonitor header!");

    61   assert(_count == 0, "Fatal logic error in ObjectMonitor count!");

    62   assert(_waiters == 0, "Fatal logic error in ObjectMonitor waiters!");

    63   assert(_recursions == 0, "Fatal logic error in ObjectMonitor recursions!");

    64   assert(_object, "Fatal logic error in ObjectMonitor object!");

    65   assert(_owner == 0, "Fatal logic error in ObjectMonitor owner!");

    67   _header = NULL;

    68   _object = NULL;

    69 }

    72 inline void* ObjectMonitor::object() const {

    73   return _object;

    74 }

    76 inline void* ObjectMonitor::object_addr() {

    77   return (void *)(&_object);

    78 }

    80 inline void ObjectMonitor::set_object(void* obj) {

    81   _object = obj;

    82 }

    84 inline bool ObjectMonitor::check(TRAPS) {

    85   if (THREAD != _owner) {

    86     if (THREAD->is_lock_owned((address) _owner)) {

    87       _owner = THREAD;  // regain ownership of inflated monitor

    88       OwnerIsThread = 1 ;

    89       assert (_recursions == 0, "invariant") ;

    90     } else {

    91       check_slow(THREAD);

    92       return false;

    93     }

    94   }

    95   return true;

    96 }

    99 // return number of threads contending for this monitor

   100 inline intptr_t ObjectMonitor::contentions() const {

   101   return _count;

   102 }

   104 // Do NOT set _count = 0. There is a race such that _count could

   105 // be set while inflating prior to setting _owner

   106 // Just use Atomic::inc/dec and assert 0 when monitor put on free list

   107 inline void ObjectMonitor::set_owner(void* owner) {

   108   _owner = owner;

   109   _recursions = 0;

   110 }

   113 #endif // SHARE_VM_RUNTIME_OBJECTMONITOR_INLINE_HPP

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