| /* |
| * Copyright (c) 2016, 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_JFR_RECORDER_STORAGE_JFRSTORAGEUTILS_INLINE_HPP |
| #define SHARE_JFR_RECORDER_STORAGE_JFRSTORAGEUTILS_INLINE_HPP |
| |
| #include "jfr/recorder/storage/jfrStorageUtils.hpp" |
| #include "runtime/thread.inline.hpp" |
| |
| template <typename T> |
| inline bool UnBufferedWriteToChunk<T>::write(T* t, const u1* data, size_t size) { |
| _writer.write_unbuffered(data, size); |
| ++_elements; |
| _size += size; |
| return true; |
| } |
| |
| template <typename T> |
| inline bool DefaultDiscarder<T>::discard(T* t, const u1* data, size_t size) { |
| ++_elements; |
| _size += size; |
| return true; |
| } |
| |
| template <typename Operation> |
| inline bool ConcurrentWriteOp<Operation>::process(typename Operation::Type* t) { |
| const u1* const current_top = t->concurrent_top(); |
| const size_t unflushed_size = t->pos() - current_top; |
| if (unflushed_size == 0) { |
| t->set_concurrent_top(current_top); |
| return true; |
| } |
| const bool result = _operation.write(t, current_top, unflushed_size); |
| t->set_concurrent_top(current_top + unflushed_size); |
| return result; |
| } |
| |
| template <typename Operation> |
| inline bool MutexedWriteOp<Operation>::process(typename Operation::Type* t) { |
| assert(t != NULL, "invariant"); |
| const u1* const current_top = t->top(); |
| const size_t unflushed_size = t->pos() - current_top; |
| if (unflushed_size == 0) { |
| return true; |
| } |
| const bool result = _operation.write(t, current_top, unflushed_size); |
| t->set_top(current_top + unflushed_size); |
| return result; |
| } |
| |
| template <typename Type> |
| static void retired_sensitive_acquire(Type* t) { |
| assert(t != NULL, "invariant"); |
| if (t->retired()) { |
| return; |
| } |
| Thread* const thread = Thread::current(); |
| while (!t->try_acquire(thread)) { |
| if (t->retired()) { |
| return; |
| } |
| } |
| } |
| |
| template <typename Operation> |
| inline bool ExclusiveOp<Operation>::process(typename Operation::Type* t) { |
| retired_sensitive_acquire(t); |
| assert(t->acquired_by_self() || t->retired(), "invariant"); |
| // User is required to ensure proper release of the acquisition |
| return MutexedWriteOp<Operation>::process(t); |
| } |
| |
| template <typename Operation> |
| inline bool DiscardOp<Operation>::process(typename Operation::Type* t) { |
| assert(t != NULL, "invariant"); |
| const u1* const current_top = _mode == concurrent ? t->concurrent_top() : t->top(); |
| const size_t unflushed_size = t->pos() - current_top; |
| if (unflushed_size == 0) { |
| if (_mode == concurrent) { |
| t->set_concurrent_top(current_top); |
| } |
| return true; |
| } |
| const bool result = _operation.discard(t, current_top, unflushed_size); |
| if (_mode == concurrent) { |
| t->set_concurrent_top(current_top + unflushed_size); |
| } else { |
| t->set_top(current_top + unflushed_size); |
| } |
| return result; |
| } |
| |
| #endif // SHARE_JFR_RECORDER_STORAGE_JFRSTORAGEUTILS_INLINE_HPP |