| /* |
| * Copyright (c) 2017, 2019, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code 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 |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| #include "precompiled.hpp" |
| #include "gc/z/zAttachedArray.inline.hpp" |
| #include "gc/z/zLock.inline.hpp" |
| #include "gc/z/zNMethodData.hpp" |
| #include "memory/allocation.hpp" |
| #include "runtime/atomic.hpp" |
| #include "runtime/orderAccess.hpp" |
| #include "utilities/align.hpp" |
| #include "utilities/debug.hpp" |
| #include "utilities/growableArray.hpp" |
| |
| ZNMethodDataOops* ZNMethodDataOops::create(const GrowableArray<oop*>& immediates, bool has_non_immediates) { |
| return ::new (AttachedArray::alloc(immediates.length())) ZNMethodDataOops(immediates, has_non_immediates); |
| } |
| |
| void ZNMethodDataOops::destroy(ZNMethodDataOops* oops) { |
| AttachedArray::free(oops); |
| } |
| |
| ZNMethodDataOops::ZNMethodDataOops(const GrowableArray<oop*>& immediates, bool has_non_immediates) : |
| _immediates(immediates.length()), |
| _has_non_immediates(has_non_immediates) { |
| // Save all immediate oops |
| for (size_t i = 0; i < immediates_count(); i++) { |
| immediates_begin()[i] = immediates.at(int(i)); |
| } |
| } |
| |
| size_t ZNMethodDataOops::immediates_count() const { |
| return _immediates.length(); |
| } |
| |
| oop** ZNMethodDataOops::immediates_begin() const { |
| return _immediates(this); |
| } |
| |
| oop** ZNMethodDataOops::immediates_end() const { |
| return immediates_begin() + immediates_count(); |
| } |
| |
| bool ZNMethodDataOops::has_non_immediates() const { |
| return _has_non_immediates; |
| } |
| |
| ZNMethodData::ZNMethodData() : |
| _lock(), |
| _oops(NULL) {} |
| |
| ZNMethodData::~ZNMethodData() { |
| ZNMethodDataOops::destroy(_oops); |
| } |
| |
| ZReentrantLock* ZNMethodData::lock() { |
| return &_lock; |
| } |
| |
| ZNMethodDataOops* ZNMethodData::oops() const { |
| return OrderAccess::load_acquire(&_oops); |
| } |
| |
| ZNMethodDataOops* ZNMethodData::swap_oops(ZNMethodDataOops* new_oops) { |
| ZLocker<ZReentrantLock> locker(&_lock); |
| ZNMethodDataOops* const old_oops = _oops; |
| _oops = new_oops; |
| return old_oops; |
| } |