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| 1 // Copyright 2015 The Chromium Authors. All rights reserved. | |
| 2 // Use of this source code is governed by a BSD-style license that can be | |
| 3 // found in the LICENSE file. | |
| 4 | |
| 5 #include "base/trace_event/process_memory_dump.h" | |
| 6 | |
| 7 #include "base/trace_event/process_memory_totals.h" | |
| 8 #include "base/trace_event/trace_event_argument.h" | |
| 9 | |
| 10 namespace base { | |
| 11 namespace trace_event { | |
| 12 | |
| 13 namespace { | |
| 14 const char kEdgeTypeOwnership[] = "ownership"; | |
| 15 | |
| 16 std::string GetSharedGlobalAllocatorDumpName( | |
| 17 const MemoryAllocatorDumpGuid& guid) { | |
| 18 return "global/" + guid.ToString(); | |
| 19 } | |
| 20 } // namespace | |
| 21 | |
| 22 ProcessMemoryDump::ProcessMemoryDump( | |
| 23 const scoped_refptr<MemoryDumpSessionState>& session_state) | |
| 24 : has_process_totals_(false), | |
| 25 has_process_mmaps_(false), | |
| 26 session_state_(session_state) { | |
| 27 } | |
| 28 | |
| 29 ProcessMemoryDump::~ProcessMemoryDump() { | |
| 30 } | |
| 31 | |
| 32 MemoryAllocatorDump* ProcessMemoryDump::CreateAllocatorDump( | |
| 33 const std::string& absolute_name) { | |
| 34 MemoryAllocatorDump* mad = new MemoryAllocatorDump(absolute_name, this); | |
| 35 AddAllocatorDumpInternal(mad); // Takes ownership of |mad|. | |
| 36 return mad; | |
| 37 } | |
| 38 | |
| 39 MemoryAllocatorDump* ProcessMemoryDump::CreateAllocatorDump( | |
| 40 const std::string& absolute_name, | |
| 41 const MemoryAllocatorDumpGuid& guid) { | |
| 42 MemoryAllocatorDump* mad = new MemoryAllocatorDump(absolute_name, this, guid); | |
| 43 AddAllocatorDumpInternal(mad); // Takes ownership of |mad|. | |
| 44 return mad; | |
| 45 } | |
| 46 | |
| 47 void ProcessMemoryDump::AddAllocatorDumpInternal(MemoryAllocatorDump* mad) { | |
| 48 DCHECK_EQ(0ul, allocator_dumps_.count(mad->absolute_name())); | |
| 49 allocator_dumps_storage_.push_back(mad); | |
| 50 allocator_dumps_[mad->absolute_name()] = mad; | |
| 51 } | |
| 52 | |
| 53 MemoryAllocatorDump* ProcessMemoryDump::GetAllocatorDump( | |
| 54 const std::string& absolute_name) const { | |
| 55 auto it = allocator_dumps_.find(absolute_name); | |
| 56 return it == allocator_dumps_.end() ? nullptr : it->second; | |
| 57 } | |
| 58 | |
| 59 MemoryAllocatorDump* ProcessMemoryDump::CreateSharedGlobalAllocatorDump( | |
| 60 const MemoryAllocatorDumpGuid& guid) { | |
| 61 return CreateAllocatorDump(GetSharedGlobalAllocatorDumpName(guid), guid); | |
| 62 } | |
| 63 | |
| 64 MemoryAllocatorDump* ProcessMemoryDump::GetSharedGlobalAllocatorDump( | |
| 65 const MemoryAllocatorDumpGuid& guid) const { | |
| 66 return GetAllocatorDump(GetSharedGlobalAllocatorDumpName(guid)); | |
| 67 } | |
| 68 | |
| 69 void ProcessMemoryDump::Clear() { | |
| 70 if (has_process_totals_) { | |
| 71 process_totals_.Clear(); | |
| 72 has_process_totals_ = false; | |
| 73 } | |
| 74 | |
| 75 if (has_process_mmaps_) { | |
| 76 process_mmaps_.Clear(); | |
| 77 has_process_mmaps_ = false; | |
| 78 } | |
| 79 | |
| 80 allocator_dumps_storage_.clear(); | |
| 81 allocator_dumps_.clear(); | |
| 82 allocator_dumps_edges_.clear(); | |
| 83 } | |
| 84 | |
| 85 void ProcessMemoryDump::TakeAllDumpsFrom(ProcessMemoryDump* other) { | |
| 86 DCHECK(!other->has_process_totals() && !other->has_process_mmaps()); | |
| 87 | |
| 88 // Moves the ownership of all MemoryAllocatorDump(s) contained in |other| | |
| 89 // into this ProcessMemoryDump. | |
| 90 for (MemoryAllocatorDump* mad : other->allocator_dumps_storage_) { | |
| 91 // Check that we don't merge duplicates. | |
| 92 DCHECK_EQ(0ul, allocator_dumps_.count(mad->absolute_name())); | |
| 93 allocator_dumps_storage_.push_back(mad); | |
| 94 allocator_dumps_[mad->absolute_name()] = mad; | |
| 95 } | |
| 96 other->allocator_dumps_storage_.weak_clear(); | |
| 97 other->allocator_dumps_.clear(); | |
| 98 | |
| 99 // Move all the edges. | |
| 100 allocator_dumps_edges_.insert(allocator_dumps_edges_.end(), | |
| 101 other->allocator_dumps_edges_.begin(), | |
| 102 other->allocator_dumps_edges_.end()); | |
| 103 other->allocator_dumps_edges_.clear(); | |
| 104 } | |
| 105 | |
| 106 void ProcessMemoryDump::AsValueInto(TracedValue* value) const { | |
| 107 if (has_process_totals_) { | |
| 108 value->BeginDictionary("process_totals"); | |
| 109 process_totals_.AsValueInto(value); | |
| 110 value->EndDictionary(); | |
| 111 } | |
| 112 | |
| 113 if (has_process_mmaps_) { | |
| 114 value->BeginDictionary("process_mmaps"); | |
| 115 process_mmaps_.AsValueInto(value); | |
| 116 value->EndDictionary(); | |
| 117 } | |
| 118 | |
| 119 if (allocator_dumps_storage_.size() > 0) { | |
| 120 value->BeginDictionary("allocators"); | |
| 121 for (const MemoryAllocatorDump* allocator_dump : allocator_dumps_storage_) | |
| 122 allocator_dump->AsValueInto(value); | |
| 123 value->EndDictionary(); | |
| 124 } | |
| 125 | |
| 126 value->BeginArray("allocators_graph"); | |
| 127 for (const MemoryAllocatorDumpEdge& edge : allocator_dumps_edges_) { | |
| 128 value->BeginDictionary(); | |
| 129 value->SetString("source", edge.source.ToString()); | |
| 130 value->SetString("target", edge.target.ToString()); | |
| 131 value->SetInteger("importance", edge.importance); | |
| 132 value->SetString("type", edge.type); | |
| 133 value->EndDictionary(); | |
| 134 } | |
| 135 value->EndArray(); | |
| 136 } | |
| 137 | |
| 138 void ProcessMemoryDump::AddOwnershipEdge(const MemoryAllocatorDumpGuid& source, | |
| 139 const MemoryAllocatorDumpGuid& target, | |
| 140 int importance) { | |
| 141 allocator_dumps_edges_.push_back( | |
| 142 {source, target, importance, kEdgeTypeOwnership}); | |
| 143 } | |
| 144 | |
| 145 void ProcessMemoryDump::AddOwnershipEdge( | |
| 146 const MemoryAllocatorDumpGuid& source, | |
| 147 const MemoryAllocatorDumpGuid& target) { | |
| 148 AddOwnershipEdge(source, target, 0 /* importance */); | |
| 149 } | |
| 150 | |
| 151 void ProcessMemoryDump::AddSuballocation(const MemoryAllocatorDumpGuid& source, | |
| 152 const std::string& target_node_name) { | |
| 153 std::string child_mad_name = target_node_name + "/__" + source.ToString(); | |
| 154 MemoryAllocatorDump* target_child_mad = CreateAllocatorDump(child_mad_name); | |
| 155 AddOwnershipEdge(source, target_child_mad->guid()); | |
| 156 } | |
| 157 | |
| 158 } // namespace trace_event | |
| 159 } // namespace base | |
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