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annotate src/share/vm/memory/space.inline.hpp @ 1552:c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
Summary: Change all the Sun copyrights to Oracle copyright
Reviewed-by: ohair
| author | trims |
|---|---|
| date | Thu, 27 May 2010 19:08:38 -0700 |
| parents | 37f87013dfd8 |
| children | f95d63e2154a |
| rev | line source |
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| 0 | 1 /* |
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2 * Copyright (c) 2000, 2006, Oracle and/or its affiliates. All rights reserved. |
| 0 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 4 * | |
| 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 | |
| 7 * published by the Free Software Foundation. | |
| 8 * | |
| 9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
| 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 12 * version 2 for more details (a copy is included in the LICENSE file that | |
| 13 * accompanied this code). | |
| 14 * | |
| 15 * You should have received a copy of the GNU General Public License version | |
| 16 * 2 along with this work; if not, write to the Free Software Foundation, | |
| 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
| 18 * | |
|
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
| 0 | 22 * |
| 23 */ | |
| 24 | |
| 342 | 25 inline HeapWord* Space::block_start(const void* p) { |
| 26 return block_start_const(p); | |
| 27 } | |
| 28 | |
| 0 | 29 inline HeapWord* OffsetTableContigSpace::allocate(size_t size) { |
| 30 HeapWord* res = ContiguousSpace::allocate(size); | |
| 31 if (res != NULL) { | |
| 32 _offsets.alloc_block(res, size); | |
| 33 } | |
| 34 return res; | |
| 35 } | |
| 36 | |
| 37 // Because of the requirement of keeping "_offsets" up to date with the | |
| 38 // allocations, we sequentialize these with a lock. Therefore, best if | |
| 39 // this is used for larger LAB allocations only. | |
| 40 inline HeapWord* OffsetTableContigSpace::par_allocate(size_t size) { | |
| 41 MutexLocker x(&_par_alloc_lock); | |
| 42 // This ought to be just "allocate", because of the lock above, but that | |
| 43 // ContiguousSpace::allocate asserts that either the allocating thread | |
| 44 // holds the heap lock or it is the VM thread and we're at a safepoint. | |
| 45 // The best I (dld) could figure was to put a field in ContiguousSpace | |
| 46 // meaning "locking at safepoint taken care of", and set/reset that | |
| 47 // here. But this will do for now, especially in light of the comment | |
| 48 // above. Perhaps in the future some lock-free manner of keeping the | |
| 49 // coordination. | |
| 50 HeapWord* res = ContiguousSpace::par_allocate(size); | |
| 51 if (res != NULL) { | |
| 52 _offsets.alloc_block(res, size); | |
| 53 } | |
| 54 return res; | |
| 55 } | |
| 56 | |
| 342 | 57 inline HeapWord* |
| 58 OffsetTableContigSpace::block_start_const(const void* p) const { | |
| 0 | 59 return _offsets.block_start(p); |
| 60 } | |
| 61 | |
| 62 inline HeapWord* ContiguousSpace::concurrent_iteration_safe_limit() | |
| 63 { | |
| 64 assert(_concurrent_iteration_safe_limit <= top(), | |
| 65 "_concurrent_iteration_safe_limit update missed"); | |
| 66 return _concurrent_iteration_safe_limit; | |
| 67 } | |
| 68 | |
| 69 inline void ContiguousSpace::set_concurrent_iteration_safe_limit(HeapWord* new_limit) | |
| 70 { | |
| 71 assert(new_limit <= top(), "uninitialized objects in the safe range"); | |
| 72 _concurrent_iteration_safe_limit = new_limit; | |
| 73 } |