| /* |
| * Copyright (c) 2021, Alibaba Group Holding Limited. 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_SERIAL_STRINGDEDUP_HPP |
| #define SHARE_GC_SERIAL_STRINGDEDUP_HPP |
| |
| #include "memory/allStatic.hpp" |
| #include "oops/oopsHierarchy.hpp" |
| |
| class SerialStringDedup : AllStatic { |
| public: |
| |
| // Candidate selection policy for full GC, returning true if the given |
| // String is a candidate for string deduplication. |
| // precondition: StringDedup::is_enabled() |
| // precondition: java_string is a Java String |
| static bool is_candidate_from_mark(oop java_string); |
| |
| // Candidate selection policy for young during evacuation. |
| static inline bool is_candidate_from_evacuation(oop obj, bool obj_is_tenured); |
| |
| }; |
| |
| #endif // SHARE_GC_SERIAL_STRINGDEDUP_HPP |
