| /* |
| * Copyright (c) 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. |
| */ |
| |
| #ifndef SHARE_GC_Z_ZSAFEDELETE_INLINE_HPP |
| #define SHARE_GC_Z_ZSAFEDELETE_INLINE_HPP |
| |
| #include "gc/z/zArray.inline.hpp" |
| #include "gc/z/zSafeDelete.hpp" |
| #include "metaprogramming/isArray.hpp" |
| #include "utilities/debug.hpp" |
| |
| template <typename T> |
| ZSafeDeleteImpl<T>::ZSafeDeleteImpl(ZLock* lock) : |
| _lock(lock), |
| _enabled(0), |
| _deferred() {} |
| |
| template <typename T> |
| bool ZSafeDeleteImpl<T>::deferred_delete(ItemT* item) { |
| ZLocker<ZLock> locker(_lock); |
| if (_enabled > 0) { |
| _deferred.add(item); |
| return true; |
| } |
| |
| return false; |
| } |
| |
| template <typename T> |
| void ZSafeDeleteImpl<T>::immediate_delete(ItemT* item) { |
| if (IsArray<T>::value) { |
| delete [] item; |
| } else { |
| delete item; |
| } |
| } |
| |
| template <typename T> |
| void ZSafeDeleteImpl<T>::enable_deferred_delete() { |
| ZLocker<ZLock> locker(_lock); |
| _enabled++; |
| } |
| |
| template <typename T> |
| void ZSafeDeleteImpl<T>::disable_deferred_delete() { |
| ZArray<ItemT*> deferred; |
| |
| { |
| ZLocker<ZLock> locker(_lock); |
| assert(_enabled > 0, "Invalid state"); |
| if (--_enabled == 0) { |
| deferred.transfer(&_deferred); |
| } |
| } |
| |
| ZArrayIterator<ItemT*> iter(&deferred); |
| for (ItemT* item; iter.next(&item);) { |
| immediate_delete(item); |
| } |
| } |
| |
| template <typename T> |
| void ZSafeDeleteImpl<T>::operator()(ItemT* item) { |
| if (!deferred_delete(item)) { |
| immediate_delete(item); |
| } |
| } |
| |
| template <typename T> |
| ZSafeDelete<T>::ZSafeDelete() : |
| ZSafeDeleteImpl<T>(&_lock), |
| _lock() {} |
| |
| template <typename T> |
| ZSafeDeleteNoLock<T>::ZSafeDeleteNoLock() : |
| ZSafeDeleteImpl<T>(NULL) {} |
| |
| #endif // SHARE_GC_Z_ZSAFEDELETE_INLINE_HPP |