Mercurial > jdk8-mips64-public > hotspot / file comparison
comparison: src/share/vm/gc_implementation/g1/ptrQueue.cpp
src/share/vm/gc_implementation/g1/ptrQueue.cpp
- changeset 2469
- 7e37af9d69ef
- parent 2314
- f95d63e2154a
- child 3156
- f08d439fab8c
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| 2457:ffd725ff6943 | 2469:7e37af9d69ef |
|---|---|
| 1 /* | 1 /* |
| 2 * Copyright (c) 2001, 2010, Oracle and/or its affiliates. All rights reserved. | 2 * Copyright (c) 2001, 2011, Oracle and/or its affiliates. All rights reserved. |
| 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 4 * | 4 * |
| 5 * This code is free software; you can redistribute it and/or modify it | 5 * This code is free software; you can redistribute it and/or modify it |
| 6 * under the terms of the GNU General Public License version 2 only, as | 6 * under the terms of the GNU General Public License version 2 only, as |
| 7 * published by the Free Software Foundation. | 7 * published by the Free Software Foundation. |
| 36 #endif | 36 #endif |
| 37 #ifdef TARGET_OS_FAMILY_windows | 37 #ifdef TARGET_OS_FAMILY_windows |
| 38 # include "thread_windows.inline.hpp" | 38 # include "thread_windows.inline.hpp" |
| 39 #endif | 39 #endif |
| 40 | 40 |
| 41 PtrQueue::PtrQueue(PtrQueueSet* qset_, bool perm, bool active) : | 41 PtrQueue::PtrQueue(PtrQueueSet* qset, bool perm, bool active) : |
| 42 _qset(qset_), _buf(NULL), _index(0), _active(active), | 42 _qset(qset), _buf(NULL), _index(0), _active(active), |
| 43 _perm(perm), _lock(NULL) | 43 _perm(perm), _lock(NULL) |
| 44 {} | 44 {} |
| 45 | 45 |
| 46 void PtrQueue::flush() { | 46 void PtrQueue::flush() { |
| 47 if (!_perm && _buf != NULL) { | 47 if (!_perm && _buf != NULL) { |
| 151 n--; | 151 n--; |
| 152 } | 152 } |
| 153 } | 153 } |
| 154 | 154 |
| 155 void PtrQueue::handle_zero_index() { | 155 void PtrQueue::handle_zero_index() { |
| 156 assert(0 == _index, "Precondition."); | 156 assert(_index == 0, "Precondition."); |
| 157 | |
| 157 // This thread records the full buffer and allocates a new one (while | 158 // This thread records the full buffer and allocates a new one (while |
| 158 // holding the lock if there is one). | 159 // holding the lock if there is one). |
| 159 if (_buf != NULL) { | 160 if (_buf != NULL) { |
| 161 if (!should_enqueue_buffer()) { | |
| 162 assert(_index > 0, "the buffer can only be re-used if it's not full"); | |
| 163 return; | |
| 164 } | |
| 165 | |
| 160 if (_lock) { | 166 if (_lock) { |
| 161 assert(_lock->owned_by_self(), "Required."); | 167 assert(_lock->owned_by_self(), "Required."); |
| 162 | 168 |
| 163 // The current PtrQ may be the shared dirty card queue and | 169 // The current PtrQ may be the shared dirty card queue and |
| 164 // may be being manipulated by more than one worker thread | 170 // may be being manipulated by more than one worker thread |
