1/* 2 * Copyright (C) 2008 Apple Inc. All rights reserved. 3 * 4 * This library is free software; you can redistribute it and/or 5 * modify it under the terms of the GNU Library General Public 6 * License as published by the Free Software Foundation; either 7 * version 2 of the License, or (at your option) any later version. 8 * 9 * This library is distributed in the hope that it will be useful, 10 * but WITHOUT ANY WARRANTY; without even the implied warranty of 11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 12 * Library General Public License for more details. 13 * 14 * You should have received a copy of the GNU Library General Public License 15 * along with this library; see the file COPYING.LIB. If not, write to 16 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, 17 * Boston, MA 02110-1301, USA. 18 * 19 */ 20 21#include "config.h" 22#include "RefCountedLeakCounter.h" 23 24#include <wtf/HashCountedSet.h> 25 26namespace WTF { 27 28#ifdef NDEBUG 29 30void RefCountedLeakCounter::suppressMessages(const char*) { } 31void RefCountedLeakCounter::cancelMessageSuppression(const char*) { } 32 33RefCountedLeakCounter::RefCountedLeakCounter(const char*) { } 34RefCountedLeakCounter::~RefCountedLeakCounter() { } 35 36void RefCountedLeakCounter::increment() { } 37void RefCountedLeakCounter::decrement() { } 38 39#else 40 41#define LOG_CHANNEL_PREFIX Log 42static WTFLogChannel LogRefCountedLeaks = { WTFLogChannelOn, "RefCountedLeaks" }; 43 44typedef HashCountedSet<const char*, PtrHash<const char*>> ReasonSet; 45static ReasonSet* leakMessageSuppressionReasons; 46 47void RefCountedLeakCounter::suppressMessages(const char* reason) 48{ 49 if (!leakMessageSuppressionReasons) 50 leakMessageSuppressionReasons = new ReasonSet; 51 leakMessageSuppressionReasons->add(reason); 52} 53 54void RefCountedLeakCounter::cancelMessageSuppression(const char* reason) 55{ 56 ASSERT(leakMessageSuppressionReasons); 57 ASSERT(leakMessageSuppressionReasons->contains(reason)); 58 leakMessageSuppressionReasons->remove(reason); 59} 60 61RefCountedLeakCounter::RefCountedLeakCounter(const char* description) 62 : m_description(description) 63{ 64} 65 66RefCountedLeakCounter::~RefCountedLeakCounter() 67{ 68 static bool loggedSuppressionReason; 69 if (m_count) { 70 if (!leakMessageSuppressionReasons || leakMessageSuppressionReasons->isEmpty()) 71 LOG(RefCountedLeaks, "LEAK: %u %s", m_count.load(), m_description); 72 else if (!loggedSuppressionReason) { 73 // This logs only one reason. Later we could change it so we log all the reasons. 74 LOG(RefCountedLeaks, "No leak checking done: %s", leakMessageSuppressionReasons->begin()->key); 75 loggedSuppressionReason = true; 76 } 77 } 78} 79 80void RefCountedLeakCounter::increment() 81{ 82 ++m_count; 83} 84 85void RefCountedLeakCounter::decrement() 86{ 87 --m_count; 88} 89 90#endif 91 92} // namespace WTF 93