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Side by Side Diff: third_party/WebKit/Source/platform/wtf/HashTable.h

Issue 2940933003: DO NOT SUBMIT results of new clang-format (Closed)
Patch Set: Created 3 years, 6 months ago
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1 /* 1 /*
2 * Copyright (C) 2005, 2006, 2007, 2008, 2011, 2012 Apple Inc. All rights 2 * Copyright (C) 2005, 2006, 2007, 2008, 2011, 2012 Apple Inc. All rights
3 * reserved. 3 * reserved.
4 * Copyright (C) 2008 David Levin <levin@chromium.org> 4 * Copyright (C) 2008 David Levin <levin@chromium.org>
5 * 5 *
6 * This library is free software; you can redistribute it and/or 6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Library General Public 7 * modify it under the terms of the GNU Library General Public
8 * License as published by the Free Software Foundation; either 8 * License as published by the Free Software Foundation; either
9 * version 2 of the License, or (at your option) any later version. 9 * version 2 of the License, or (at your option) any later version.
10 * 10 *
11 * This library is distributed in the hope that it will be useful, 11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of 12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library
14 * General Public License for more details. 14 * General Public License for more details.
15 * 15 *
16 * You should have received a copy of the GNU Library General Public License 16 * You should have received a copy of the GNU Library General Public License
17 * along with this library; see the file COPYING.LIB. If not, write to 17 * along with this library; see the file COPYING.LIB. If not, write to
18 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, 18 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
19 * Boston, MA 02110-1301, USA. 19 * Boston, MA 02110-1301, USA.
20 * 20 *
21 */ 21 */
22 22
23 #ifndef WTF_HashTable_h 23 #ifndef WTF_HashTable_h
24 #define WTF_HashTable_h 24 #define WTF_HashTable_h
25 25
26 #include <memory>
26 #include "platform/wtf/Alignment.h" 27 #include "platform/wtf/Alignment.h"
27 #include "platform/wtf/Allocator.h" 28 #include "platform/wtf/Allocator.h"
28 #include "platform/wtf/Assertions.h" 29 #include "platform/wtf/Assertions.h"
29 #include "platform/wtf/ConditionalDestructor.h" 30 #include "platform/wtf/ConditionalDestructor.h"
30 #include "platform/wtf/HashTraits.h" 31 #include "platform/wtf/HashTraits.h"
31 #include "platform/wtf/PtrUtil.h" 32 #include "platform/wtf/PtrUtil.h"
32 #include "platform/wtf/allocator/PartitionAllocator.h" 33 #include "platform/wtf/allocator/PartitionAllocator.h"
33 #include <memory>
34 34
35 #define DUMP_HASHTABLE_STATS 0 35 #define DUMP_HASHTABLE_STATS 0
36 #define DUMP_HASHTABLE_STATS_PER_TABLE 0 36 #define DUMP_HASHTABLE_STATS_PER_TABLE 0
37 37
38 #if DUMP_HASHTABLE_STATS 38 #if DUMP_HASHTABLE_STATS
39 #include "platform/wtf/Atomics.h" 39 #include "platform/wtf/Atomics.h"
40 #include "platform/wtf/Threading.h" 40 #include "platform/wtf/Threading.h"
41 #endif 41 #endif
42 42
43 #if DUMP_HASHTABLE_STATS_PER_TABLE 43 #if DUMP_HASHTABLE_STATS_PER_TABLE
44 #include <type_traits>
44 #include "platform/wtf/DataLog.h" 45 #include "platform/wtf/DataLog.h"
45 #include <type_traits>
46 #endif 46 #endif
47 47
48 #if DUMP_HASHTABLE_STATS 48 #if DUMP_HASHTABLE_STATS
49 #if DUMP_HASHTABLE_STATS_PER_TABLE 49 #if DUMP_HASHTABLE_STATS_PER_TABLE
50 50
51 #define UPDATE_PROBE_COUNTS() \ 51 #define UPDATE_PROBE_COUNTS() \
52 ++probeCount; \ 52 ++probeCount; \
53 HashTableStats::instance().recordCollisionAtCount(probeCount); \ 53 HashTableStats::instance().recordCollisionAtCount(probeCount); \
54 ++perTableProbeCount; \ 54 ++perTableProbeCount; \
55 stats_->recordCollisionAtCount(perTableProbeCount) 55 stats_->recordCollisionAtCount(perTableProbeCount)
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2105 KeyTraits, Allocator>::Process); 2105 KeyTraits, Allocator>::Process);
2106 } 2106 }
2107 // If the backing store will be moved by sweep compaction, register the 2107 // If the backing store will be moved by sweep compaction, register the
2108 // table reference pointing to the backing store object, so that the 2108 // table reference pointing to the backing store object, so that the
2109 // reference is updated upon object relocation. A no-op if not enabled 2109 // reference is updated upon object relocation. A no-op if not enabled
2110 // by the visitor. 2110 // by the visitor.
2111 Allocator::RegisterBackingStoreReference(visitor, &table_); 2111 Allocator::RegisterBackingStoreReference(visitor, &table_);
2112 if (!IsTraceableInCollectionTrait<Traits>::value) 2112 if (!IsTraceableInCollectionTrait<Traits>::value)
2113 return; 2113 return;
2114 if (Traits::kWeakHandlingFlag == kWeakHandlingInCollections) { 2114 if (Traits::kWeakHandlingFlag == kWeakHandlingInCollections) {
2115 // If we have both strong and weak pointers in the collection then 2115 // If we have both strong and weak pointers in the collection then
2116 // we queue up the collection for fixed point iteration a la 2116 // we queue up the collection for fixed point iteration a la
2117 // Ephemerons: 2117 // Ephemerons:
2118 // http://dl.acm.org/citation.cfm?doid=263698.263733 - see also 2118 // http://dl.acm.org/citation.cfm?doid=263698.263733 - see also
2119 // http://www.jucs.org/jucs_14_21/eliminating_cycles_in_weak 2119 // http://www.jucs.org/jucs_14_21/eliminating_cycles_in_weak
2120 #if DCHECK_IS_ON() 2120 #if DCHECK_IS_ON()
2121 DCHECK(!Enqueued() || Allocator::WeakTableRegistered(visitor, this)); 2121 DCHECK(!Enqueued() || Allocator::WeakTableRegistered(visitor, this));
2122 #endif 2122 #endif
2123 if (!Enqueued()) { 2123 if (!Enqueued()) {
2124 Allocator::RegisterWeakTable( 2124 Allocator::RegisterWeakTable(
2125 visitor, this, 2125 visitor, this,
2126 WeakProcessingHashTableHelper< 2126 WeakProcessingHashTableHelper<
2127 Traits::kWeakHandlingFlag, Key, Value, Extractor, HashFunctions, 2127 Traits::kWeakHandlingFlag, Key, Value, Extractor, HashFunctions,
2128 Traits, KeyTraits, Allocator>::EphemeronIteration, 2128 Traits, KeyTraits, Allocator>::EphemeronIteration,
2129 WeakProcessingHashTableHelper< 2129 WeakProcessingHashTableHelper<
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2280 CollectionIterator end(to_be_removed.end()); 2280 CollectionIterator end(to_be_removed.end());
2281 for (CollectionIterator it(to_be_removed.begin()); it != end; ++it) 2281 for (CollectionIterator it(to_be_removed.begin()); it != end; ++it)
2282 collection.erase(*it); 2282 collection.erase(*it);
2283 } 2283 }
2284 2284
2285 } // namespace WTF 2285 } // namespace WTF
2286 2286
2287 #include "platform/wtf/HashIterators.h" 2287 #include "platform/wtf/HashIterators.h"
2288 2288
2289 #endif // WTF_HashTable_h 2289 #endif // WTF_HashTable_h
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