Mercurial > jdk8-mips64-public > hotspot / annotate
src/share/vm/memory/watermark.hpp@8c95980d0b66 (annotated)
src/share/vm/memory/watermark.hpp
Sat, 07 Nov 2020 10:30:02 +0800
- author
- aoqi
- date
- Sat, 07 Nov 2020 10:30:02 +0800
- changeset 10026
- 8c95980d0b66
- parent 6876
- 710a3c8b516e
- permissions
- -rw-r--r--
Added tag mips-jdk8u275-b01 for changeset d3b4d62f391f
| aoqi@0 | 1 | /* |
| aoqi@0 | 2 | * Copyright (c) 2000, 2010, Oracle and/or its affiliates. All rights reserved. |
| aoqi@0 | 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| aoqi@0 | 4 | * |
| aoqi@0 | 5 | * This code is free software; you can redistribute it and/or modify it |
| aoqi@0 | 6 | * under the terms of the GNU General Public License version 2 only, as |
| aoqi@0 | 7 | * published by the Free Software Foundation. |
| aoqi@0 | 8 | * |
| aoqi@0 | 9 | * This code is distributed in the hope that it will be useful, but WITHOUT |
| aoqi@0 | 10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| aoqi@0 | 11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| aoqi@0 | 12 | * version 2 for more details (a copy is included in the LICENSE file that |
| aoqi@0 | 13 | * accompanied this code). |
| aoqi@0 | 14 | * |
| aoqi@0 | 15 | * You should have received a copy of the GNU General Public License version |
| aoqi@0 | 16 | * 2 along with this work; if not, write to the Free Software Foundation, |
| aoqi@0 | 17 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| aoqi@0 | 18 | * |
| aoqi@0 | 19 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| aoqi@0 | 20 | * or visit www.oracle.com if you need additional information or have any |
| aoqi@0 | 21 | * questions. |
| aoqi@0 | 22 | * |
| aoqi@0 | 23 | */ |
| aoqi@0 | 24 | |
| aoqi@0 | 25 | #ifndef SHARE_VM_MEMORY_WATERMARK_HPP |
| aoqi@0 | 26 | #define SHARE_VM_MEMORY_WATERMARK_HPP |
| aoqi@0 | 27 | |
| aoqi@0 | 28 | #include "memory/allocation.hpp" |
| aoqi@0 | 29 | #include "utilities/globalDefinitions.hpp" |
| aoqi@0 | 30 | |
| aoqi@0 | 31 | // A water mark points into a space and is used during GC to keep track of |
| aoqi@0 | 32 | // progress. |
| aoqi@0 | 33 | |
| aoqi@0 | 34 | class Space; |
| aoqi@0 | 35 | |
| aoqi@0 | 36 | class WaterMark VALUE_OBJ_CLASS_SPEC { |
| aoqi@0 | 37 | friend class VMStructs; |
| aoqi@0 | 38 | private: |
| aoqi@0 | 39 | HeapWord* _point; |
| aoqi@0 | 40 | Space* _space; |
| aoqi@0 | 41 | public: |
| aoqi@0 | 42 | // Accessors |
| aoqi@0 | 43 | Space* space() const { return _space; } |
| aoqi@0 | 44 | void set_space(Space* s) { _space = s; } |
| aoqi@0 | 45 | HeapWord* point() const { return _point; } |
| aoqi@0 | 46 | void set_point(HeapWord* p) { _point = p; } |
| aoqi@0 | 47 | |
| aoqi@0 | 48 | // Constructors |
| aoqi@0 | 49 | WaterMark(Space* s, HeapWord* p) : _space(s), _point(p) {}; |
| aoqi@0 | 50 | WaterMark() : _space(NULL), _point(NULL) {}; |
| aoqi@0 | 51 | }; |
| aoqi@0 | 52 | |
| aoqi@0 | 53 | inline bool operator==(const WaterMark& x, const WaterMark& y) { |
| aoqi@0 | 54 | return (x.point() == y.point()) && (x.space() == y.space()); |
| aoqi@0 | 55 | } |
| aoqi@0 | 56 | |
| aoqi@0 | 57 | inline bool operator!=(const WaterMark& x, const WaterMark& y) { |
| aoqi@0 | 58 | return !(x == y); |
| aoqi@0 | 59 | } |
| aoqi@0 | 60 | |
| aoqi@0 | 61 | #endif // SHARE_VM_MEMORY_WATERMARK_HPP |
