| /* |
| * Copyright (c) 2018, 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_SHARED_OOPSTORAGEPARSTATE_INLINE_HPP |
| #define SHARE_GC_SHARED_OOPSTORAGEPARSTATE_INLINE_HPP |
| |
| #include "gc/shared/oopStorage.inline.hpp" |
| #include "gc/shared/oopStorageParState.hpp" |
| #include "metaprogramming/conditional.hpp" |
| #include "utilities/macros.hpp" |
| |
| template<typename F> |
| class OopStorage::BasicParState::AlwaysTrueFn { |
| F _f; |
| |
| public: |
| AlwaysTrueFn(F f) : _f(f) {} |
| |
| template<typename OopPtr> // [const] oop* |
| bool operator()(OopPtr ptr) const { _f(ptr); return true; } |
| }; |
| |
| struct OopStorage::BasicParState::IterationData { |
| size_t _segment_start; |
| size_t _segment_end; |
| size_t _processed; |
| }; |
| |
| template<bool is_const, typename F> |
| inline void OopStorage::BasicParState::iterate(F f) { |
| // Wrap f in ATF so we can use Block::iterate. |
| AlwaysTrueFn<F> atf_f(f); |
| IterationData data = {}; // zero initialize. |
| while (claim_next_segment(&data)) { |
| assert(data._segment_start < data._segment_end, "invariant"); |
| assert(data._segment_end <= _block_count, "invariant"); |
| typedef typename Conditional<is_const, const Block*, Block*>::type BlockPtr; |
| size_t i = data._segment_start; |
| do { |
| BlockPtr block = _active_array->at(i); |
| block->iterate(atf_f); |
| } while (++i < data._segment_end); |
| } |
| } |
| |
| template<bool concurrent, bool is_const> |
| template<typename F> |
| inline void OopStorage::ParState<concurrent, is_const>::iterate(F f) { |
| _basic_state.template iterate<is_const>(f); |
| } |
| |
| template<bool concurrent, bool is_const> |
| template<typename Closure> |
| inline void OopStorage::ParState<concurrent, is_const>::oops_do(Closure* cl) { |
| this->iterate(oop_fn(cl)); |
| } |
| |
| template<typename F> |
| inline void OopStorage::ParState<false, false>::iterate(F f) { |
| _basic_state.template iterate<false>(f); |
| } |
| |
| template<typename Closure> |
| inline void OopStorage::ParState<false, false>::oops_do(Closure* cl) { |
| this->iterate(oop_fn(cl)); |
| } |
| |
| template<typename Closure> |
| inline void OopStorage::ParState<false, false>::weak_oops_do(Closure* cl) { |
| this->iterate(skip_null_fn(oop_fn(cl))); |
| } |
| |
| template<typename IsAliveClosure, typename Closure> |
| inline void OopStorage::ParState<false, false>::weak_oops_do(IsAliveClosure* is_alive, Closure* cl) { |
| this->iterate(if_alive_fn(is_alive, oop_fn(cl))); |
| } |
| |
| #endif // SHARE_GC_SHARED_OOPSTORAGEPARSTATE_INLINE_HPP |