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src/share/vm/gc_implementation/parallelScavenge/psPromotionLAB.inline.hpp@af8f16ac392c (annotated)
src/share/vm/gc_implementation/parallelScavenge/psPromotionLAB.inline.hpp
Thu, 09 Apr 2015 15:59:26 +0200
- author
- mlarsson
- date
- Thu, 09 Apr 2015 15:59:26 +0200
- changeset 7687
- af8f16ac392c
- parent 7031
- ee019285a52c
- permissions
- -rw-r--r--
8066771: Refactor VM GC operations caused by allocation failure
Reviewed-by: brutisso, jmasa
| jmasa@7031 | 1 | /* |
| jmasa@7031 | 2 | * Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved. |
| jmasa@7031 | 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| jmasa@7031 | 4 | * |
| jmasa@7031 | 5 | * This code is free software; you can redistribute it and/or modify it |
| jmasa@7031 | 6 | * under the terms of the GNU General Public License version 2 only, as |
| jmasa@7031 | 7 | * published by the Free Software Foundation. |
| jmasa@7031 | 8 | * |
| jmasa@7031 | 9 | * This code is distributed in the hope that it will be useful, but WITHOUT |
| jmasa@7031 | 10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| jmasa@7031 | 11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| jmasa@7031 | 12 | * version 2 for more details (a copy is included in the LICENSE file that |
| jmasa@7031 | 13 | * accompanied this code). |
| jmasa@7031 | 14 | * |
| jmasa@7031 | 15 | * You should have received a copy of the GNU General Public License version |
| jmasa@7031 | 16 | * 2 along with this work; if not, write to the Free Software Foundation, |
| jmasa@7031 | 17 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| jmasa@7031 | 18 | * |
| jmasa@7031 | 19 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| jmasa@7031 | 20 | * or visit www.oracle.com if you need additional information or have any |
| jmasa@7031 | 21 | * questions. |
| jmasa@7031 | 22 | * |
| jmasa@7031 | 23 | */ |
| jmasa@7031 | 24 | |
| jmasa@7031 | 25 | #ifndef SHARE_VM_GC_IMPLEMENTATION_PARALLELSCAVENGE_PSPROMOTIONLAB_INLINE_HPP |
| jmasa@7031 | 26 | #define SHARE_VM_GC_IMPLEMENTATION_PARALLELSCAVENGE_PSPROMOTIONLAB_INLINE_HPP |
| jmasa@7031 | 27 | |
| jmasa@7031 | 28 | #include "gc_implementation/parallelScavenge/psPromotionLAB.hpp" |
| jmasa@7031 | 29 | #include "gc_interface/collectedHeap.inline.hpp" |
| jmasa@7031 | 30 | |
| jmasa@7031 | 31 | HeapWord* PSYoungPromotionLAB::allocate(size_t size) { |
| jmasa@7031 | 32 | // Can't assert this, when young fills, we keep the LAB around, but flushed. |
| jmasa@7031 | 33 | // assert(_state != flushed, "Sanity"); |
| jmasa@7031 | 34 | HeapWord* obj = CollectedHeap::align_allocation_or_fail(top(), end(), SurvivorAlignmentInBytes); |
| jmasa@7031 | 35 | if (obj == NULL) { |
| jmasa@7031 | 36 | return NULL; |
| jmasa@7031 | 37 | } |
| jmasa@7031 | 38 | |
| jmasa@7031 | 39 | HeapWord* new_top = obj + size; |
| jmasa@7031 | 40 | // The 'new_top>obj' check is needed to detect overflow of obj+size. |
| jmasa@7031 | 41 | if (new_top > obj && new_top <= end()) { |
| jmasa@7031 | 42 | set_top(new_top); |
| jmasa@7031 | 43 | assert(is_ptr_aligned(obj, SurvivorAlignmentInBytes) && is_object_aligned((intptr_t)new_top), |
| jmasa@7031 | 44 | "checking alignment"); |
| jmasa@7031 | 45 | return obj; |
| jmasa@7031 | 46 | } else { |
| jmasa@7031 | 47 | set_top(obj); |
| jmasa@7031 | 48 | return NULL; |
| jmasa@7031 | 49 | } |
| jmasa@7031 | 50 | } |
| jmasa@7031 | 51 | |
| jmasa@7031 | 52 | #endif // SHARE_VM_GC_IMPLEMENTATION_PARALLELSCAVENGE_PSPROMOTIONLAB_INLINE_HPP |
