Mercurial > hg > truffle
annotate src/share/vm/memory/blockOffsetTable.inline.hpp @ 2904:1916da1d3e11
Merge.
author | Thomas Wuerthinger <thomas@wuerthinger.net> |
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date | Wed, 08 Jun 2011 17:26:49 +0200 |
parents | f95d63e2154a |
children | da91efe96a93 |
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0 | 1 /* |
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2 * Copyright (c) 2000, 2010, 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 | |
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7 * published by the Free Software Foundation. | |
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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). | |
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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 | |
1972 | 25 #ifndef SHARE_VM_MEMORY_BLOCKOFFSETTABLE_INLINE_HPP |
26 #define SHARE_VM_MEMORY_BLOCKOFFSETTABLE_INLINE_HPP | |
27 | |
28 #include "memory/blockOffsetTable.hpp" | |
29 #include "memory/space.hpp" | |
30 #include "runtime/safepoint.hpp" | |
31 #ifndef SERIALGC | |
32 #include "gc_implementation/concurrentMarkSweep/concurrentMarkSweepGeneration.hpp" | |
33 #endif | |
34 | |
0 | 35 ////////////////////////////////////////////////////////////////////////// |
36 // BlockOffsetTable inlines | |
37 ////////////////////////////////////////////////////////////////////////// | |
38 inline HeapWord* BlockOffsetTable::block_start(const void* addr) const { | |
39 if (addr >= _bottom && addr < _end) { | |
40 return block_start_unsafe(addr); | |
41 } else { | |
42 return NULL; | |
43 } | |
44 } | |
45 | |
46 ////////////////////////////////////////////////////////////////////////// | |
47 // BlockOffsetSharedArray inlines | |
48 ////////////////////////////////////////////////////////////////////////// | |
49 inline size_t BlockOffsetSharedArray::index_for(const void* p) const { | |
50 char* pc = (char*)p; | |
51 assert(pc >= (char*)_reserved.start() && | |
52 pc < (char*)_reserved.end(), | |
53 "p not in range."); | |
54 size_t delta = pointer_delta(pc, _reserved.start(), sizeof(char)); | |
55 size_t result = delta >> LogN; | |
56 assert(result < _vs.committed_size(), "bad index from address"); | |
57 return result; | |
58 } | |
59 | |
60 inline HeapWord* BlockOffsetSharedArray::address_for_index(size_t index) const { | |
61 assert(index < _vs.committed_size(), "bad index"); | |
62 HeapWord* result = _reserved.start() + (index << LogN_words); | |
63 assert(result >= _reserved.start() && result < _reserved.end(), | |
64 "bad address from index"); | |
65 return result; | |
66 } | |
67 | |
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68 inline void BlockOffsetSharedArray::check_reducing_assertion(bool reducing) { |
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69 assert(reducing || !SafepointSynchronize::is_at_safepoint() || init_to_zero() || |
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70 Thread::current()->is_VM_thread() || |
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71 Thread::current()->is_ConcurrentGC_thread() || |
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72 ((!Thread::current()->is_ConcurrentGC_thread()) && |
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73 ParGCRareEvent_lock->owned_by_self()), "Crack"); |
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74 } |
0 | 75 |
76 ////////////////////////////////////////////////////////////////////////// | |
77 // BlockOffsetArrayNonContigSpace inlines | |
78 ////////////////////////////////////////////////////////////////////////// | |
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79 inline void BlockOffsetArrayNonContigSpace::freed(HeapWord* blk, |
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80 size_t size) { |
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81 freed(blk, blk + size); |
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82 } |
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83 |
0 | 84 inline void BlockOffsetArrayNonContigSpace::freed(HeapWord* blk_start, |
85 HeapWord* blk_end) { | |
86 // Verify that the BOT shows [blk_start, blk_end) to be one block. | |
87 verify_single_block(blk_start, blk_end); | |
88 // adjust _unallocated_block upward or downward | |
89 // as appropriate | |
90 if (BlockOffsetArrayUseUnallocatedBlock) { | |
91 assert(_unallocated_block <= _end, | |
92 "Inconsistent value for _unallocated_block"); | |
93 if (blk_end >= _unallocated_block && blk_start <= _unallocated_block) { | |
94 // CMS-specific note: a block abutting _unallocated_block to | |
95 // its left is being freed, a new block is being added or | |
96 // we are resetting following a compaction | |
97 _unallocated_block = blk_start; | |
98 } | |
99 } | |
100 } | |
1972 | 101 |
102 #endif // SHARE_VM_MEMORY_BLOCKOFFSETTABLE_INLINE_HPP |