Index: third_party/WebKit/Source/wtf/HashTable.cpp |
diff --git a/third_party/WebKit/Source/wtf/HashTable.cpp b/third_party/WebKit/Source/wtf/HashTable.cpp |
deleted file mode 100644 |
index 0a8c37029a51ded193b3ededb5d80df370e2f45a..0000000000000000000000000000000000000000 |
--- a/third_party/WebKit/Source/wtf/HashTable.cpp |
+++ /dev/null |
@@ -1,93 +0,0 @@ |
-/* |
- Copyright (C) 2005 Apple Inc. All rights reserved. |
- |
- This library is free software; you can redistribute it and/or |
- modify it under the terms of the GNU Library General Public |
- License as published by the Free Software Foundation; either |
- version 2 of the License, or (at your option) any later version. |
- |
- This library is distributed in the hope that it will be useful, |
- but WITHOUT ANY WARRANTY; without even the implied warranty of |
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
- Library General Public License for more details. |
- |
- You should have received a copy of the GNU Library General Public License |
- along with this library; see the file COPYING.LIB. If not, write to |
- the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, |
- Boston, MA 02110-1301, USA. |
-*/ |
- |
-#include "wtf/HashTable.h" |
- |
-#if DUMP_HASHTABLE_STATS |
- |
-#include "wtf/DataLog.h" |
-#include "wtf/ThreadingPrimitives.h" |
- |
-namespace WTF { |
- |
-static Mutex& hashTableStatsMutex() { |
- DEFINE_THREAD_SAFE_STATIC_LOCAL(Mutex, mutex, new Mutex); |
- return mutex; |
-} |
- |
-HashTableStats& HashTableStats::instance() { |
- DEFINE_THREAD_SAFE_STATIC_LOCAL(HashTableStats, stats, new HashTableStats); |
- return stats; |
-} |
- |
-void HashTableStats::copy(const HashTableStats* other) { |
- numAccesses = other->numAccesses; |
- numRehashes = other->numRehashes; |
- numRemoves = other->numRemoves; |
- numReinserts = other->numReinserts; |
- |
- maxCollisions = other->maxCollisions; |
- numCollisions = other->numCollisions; |
- memcpy(collisionGraph, other->collisionGraph, sizeof(collisionGraph)); |
-} |
- |
-void HashTableStats::recordCollisionAtCount(int count) { |
- // The global hash table singleton needs to be atomically updated. |
- bool isGlobalSingleton = this == &instance(); |
- if (isGlobalSingleton) |
- hashTableStatsMutex().lock(); |
- |
- if (count > maxCollisions) |
- maxCollisions = count; |
- numCollisions++; |
- collisionGraph[count]++; |
- |
- if (isGlobalSingleton) |
- hashTableStatsMutex().unlock(); |
-} |
- |
-void HashTableStats::dumpStats() { |
- // Lock the global hash table singleton while dumping. |
- bool isGlobalSingleton = this == &instance(); |
- if (isGlobalSingleton) |
- hashTableStatsMutex().lock(); |
- |
- dataLogF("\nWTF::HashTable statistics\n\n"); |
- dataLogF("%d accesses\n", numAccesses); |
- dataLogF("%d total collisions, average %.2f probes per access\n", |
- numCollisions, 1.0 * (numAccesses + numCollisions) / numAccesses); |
- dataLogF("longest collision chain: %d\n", maxCollisions); |
- for (int i = 1; i <= maxCollisions; i++) { |
- dataLogF( |
- " %d lookups with exactly %d collisions (%.2f%% , %.2f%% with this " |
- "many or more)\n", |
- collisionGraph[i], i, |
- 100.0 * (collisionGraph[i] - collisionGraph[i + 1]) / numAccesses, |
- 100.0 * collisionGraph[i] / numAccesses); |
- } |
- dataLogF("%d rehashes\n", numRehashes); |
- dataLogF("%d reinserts\n", numReinserts); |
- |
- if (isGlobalSingleton) |
- hashTableStatsMutex().unlock(); |
-} |
- |
-} // namespace WTF |
- |
-#endif |