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| 1 /* | |
| 2 * Copyright (C) 2012 Google Inc. All rights reserved. | |
| 3 * | |
| 4 * Redistribution and use in source and binary forms, with or without | |
| 5 * modification, are permitted provided that the following conditions are | |
| 6 * met: | |
| 7 * | |
| 8 * * Redistributions of source code must retain the above copyright | |
| 9 * notice, this list of conditions and the following disclaimer. | |
| 10 * * Redistributions in binary form must reproduce the above | |
| 11 * copyright notice, this list of conditions and the following disclaimer | |
| 12 * in the documentation and/or other materials provided with the | |
| 13 * distribution. | |
| 14 * * Neither the name of Google Inc. nor the names of its | |
| 15 * contributors may be used to endorse or promote products derived from | |
| 16 * this software without specific prior written permission. | |
| 17 * | |
| 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | |
| 19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | |
| 20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | |
| 21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | |
| 22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
| 23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | |
| 24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | |
| 25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | |
| 26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
| 27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
| 28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
| 29 */ | |
| 30 | |
| 31 #include "config.h" | |
| 32 #include "MemoryInstrumentationImpl.h" | |
| 33 | |
| 34 #include "HeapGraphSerializer.h" | |
| 35 #include "WebCoreMemoryInstrumentation.h" | |
| 36 #include <wtf/Assertions.h> | |
| 37 #include <wtf/MemoryInstrumentationHashMap.h> | |
| 38 #include <wtf/MemoryInstrumentationHashSet.h> | |
| 39 #include <wtf/MemoryInstrumentationVector.h> | |
| 40 #include <wtf/text/StringHash.h> | |
| 41 | |
| 42 namespace WebCore { | |
| 43 | |
| 44 TypeNameToSizeMap MemoryInstrumentationClientImpl::sizesMap() const | |
| 45 { | |
| 46 // TypeToSizeMap uses const char* as the key. | |
| 47 // Thus it could happen that we have two different keys with equal string. | |
| 48 TypeNameToSizeMap sizesMap; | |
| 49 for (TypeToSizeMap::const_iterator i = m_totalSizes.begin(); i != m_totalSiz
es.end(); ++i) { | |
| 50 String objectType(i->key); | |
| 51 TypeNameToSizeMap::AddResult result = sizesMap.add(objectType, i->value)
; | |
| 52 if (!result.isNewEntry) | |
| 53 result.iterator->value += i->value; | |
| 54 } | |
| 55 | |
| 56 return sizesMap; | |
| 57 } | |
| 58 | |
| 59 void MemoryInstrumentationClientImpl::countObjectSize(const void* object, Memory
ObjectType objectType, size_t size) | |
| 60 { | |
| 61 ASSERT(objectType); | |
| 62 | |
| 63 TypeToSizeMap::AddResult result = m_totalSizes.add(objectType, size); | |
| 64 if (!result.isNewEntry) | |
| 65 result.iterator->value += size; | |
| 66 ++m_totalCountedObjects; | |
| 67 | |
| 68 if (!checkInstrumentedObjects()) | |
| 69 return; | |
| 70 | |
| 71 if (object) | |
| 72 m_countedObjects.add(object, size); | |
| 73 } | |
| 74 | |
| 75 bool MemoryInstrumentationClientImpl::visited(const void* object) | |
| 76 { | |
| 77 return !m_visitedObjects.add(object).isNewEntry; | |
| 78 } | |
| 79 | |
| 80 bool MemoryInstrumentationClientImpl::checkCountedObject(const void* object) | |
| 81 { | |
| 82 if (!checkInstrumentedObjects()) | |
| 83 return true; | |
| 84 if (!m_allocatedObjects.contains(object)) { | |
| 85 ++m_totalObjectsNotInAllocatedSet; | |
| 86 return false; | |
| 87 } | |
| 88 return true; | |
| 89 } | |
| 90 | |
| 91 void MemoryInstrumentationClientImpl::reportNode(const MemoryObjectInfo& node) | |
| 92 { | |
| 93 if (m_graphSerializer) | |
| 94 m_graphSerializer->reportNode(node); | |
| 95 } | |
| 96 | |
| 97 void MemoryInstrumentationClientImpl::reportEdge(const void* target, const char*
name, MemberType memberType) | |
| 98 { | |
| 99 if (m_graphSerializer) | |
| 100 m_graphSerializer->reportEdge(target, name, memberType); | |
| 101 } | |
| 102 | |
| 103 void MemoryInstrumentationClientImpl::reportLeaf(const MemoryObjectInfo& target,
const char* edgeName) | |
| 104 { | |
| 105 if (m_graphSerializer) | |
| 106 m_graphSerializer->reportLeaf(target, edgeName); | |
| 107 } | |
| 108 | |
| 109 void MemoryInstrumentationClientImpl::reportBaseAddress(const void* base, const
void* real) | |
| 110 { | |
| 111 if (m_graphSerializer) | |
| 112 m_graphSerializer->reportBaseAddress(base, real); | |
| 113 } | |
| 114 | |
| 115 int MemoryInstrumentationClientImpl::registerString(const char* string) | |
| 116 { | |
| 117 if (m_graphSerializer) | |
| 118 return m_graphSerializer->registerString(string); | |
| 119 return -1; | |
| 120 } | |
| 121 | |
| 122 void MemoryInstrumentationClientImpl::reportMemoryUsage(MemoryObjectInfo* memory
ObjectInfo) const | |
| 123 { | |
| 124 MemoryClassInfo info(memoryObjectInfo, this, WebCoreMemoryTypes::InspectorMe
moryAgent); | |
| 125 info.addMember(m_totalSizes, "totalSizes"); | |
| 126 info.addMember(m_visitedObjects, "visitedObjects"); | |
| 127 info.addMember(m_allocatedObjects, "allocatedObjects"); | |
| 128 info.addMember(m_countedObjects, "countedObjects"); | |
| 129 info.addMember(m_graphSerializer, "graphSerializer"); | |
| 130 } | |
| 131 | |
| 132 void MemoryInstrumentationImpl::processDeferredObjects() | |
| 133 { | |
| 134 while (!m_deferredObjects.isEmpty()) { | |
| 135 OwnPtr<WrapperBase> pointer = m_deferredObjects.last().release(); | |
| 136 m_deferredObjects.removeLast(); | |
| 137 pointer->process(this); | |
| 138 } | |
| 139 } | |
| 140 | |
| 141 void MemoryInstrumentationImpl::deferObject(PassOwnPtr<WrapperBase> pointer) | |
| 142 { | |
| 143 m_deferredObjects.append(pointer); | |
| 144 } | |
| 145 | |
| 146 void MemoryInstrumentationImpl::reportMemoryUsage(MemoryObjectInfo* memoryObject
Info) const | |
| 147 { | |
| 148 MemoryClassInfo info(memoryObjectInfo, this, WebCoreMemoryTypes::InspectorMe
moryAgent); | |
| 149 info.addMember(m_deferredObjects, "deferredObjects"); | |
| 150 } | |
| 151 | |
| 152 | |
| 153 } // namespace WebCore | |
| 154 | |
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