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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 "platform/web_process_memory_dump_impl.h" | |
6 | |
7 #include "base/memory/discardable_memory.h" | |
8 #include "base/memory/ptr_util.h" | |
9 #include "base/strings/stringprintf.h" | |
10 #include "base/trace_event/heap_profiler_heap_dump_writer.h" | |
11 #include "base/trace_event/process_memory_dump.h" | |
12 #include "base/trace_event/trace_event_argument.h" | |
13 #include "base/trace_event/trace_event_memory_overhead.h" | |
14 #include "platform/web_memory_allocator_dump_impl.h" | |
15 #include "skia/ext/skia_trace_memory_dump_impl.h" | |
16 | |
17 #include <stddef.h> | |
18 | |
19 namespace blink { | |
20 | |
21 WebProcessMemoryDumpImpl::WebProcessMemoryDumpImpl() | |
22 : owned_process_memory_dump_( | |
23 new base::trace_event::ProcessMemoryDump(nullptr)), | |
24 process_memory_dump_(owned_process_memory_dump_.get()), | |
25 level_of_detail_(base::trace_event::MemoryDumpLevelOfDetail::DETAILED) {} | |
26 | |
27 WebProcessMemoryDumpImpl::WebProcessMemoryDumpImpl( | |
28 base::trace_event::MemoryDumpLevelOfDetail level_of_detail, | |
29 base::trace_event::ProcessMemoryDump* process_memory_dump) | |
30 : process_memory_dump_(process_memory_dump), | |
31 level_of_detail_(level_of_detail) {} | |
32 | |
33 WebProcessMemoryDumpImpl::~WebProcessMemoryDumpImpl() { | |
34 } | |
35 | |
36 blink::WebMemoryAllocatorDump* | |
37 WebProcessMemoryDumpImpl::createMemoryAllocatorDump( | |
38 const blink::WebString& absolute_name) { | |
39 // Get a MemoryAllocatorDump from the base/ object. | |
40 base::trace_event::MemoryAllocatorDump* memory_allocator_dump = | |
41 process_memory_dump_->CreateAllocatorDump(absolute_name.utf8()); | |
42 | |
43 return createWebMemoryAllocatorDump(memory_allocator_dump); | |
44 } | |
45 | |
46 blink::WebMemoryAllocatorDump* | |
47 WebProcessMemoryDumpImpl::createMemoryAllocatorDump( | |
48 const blink::WebString& absolute_name, | |
49 blink::WebMemoryAllocatorDumpGuid guid) { | |
50 // Get a MemoryAllocatorDump from the base/ object with given guid. | |
51 base::trace_event::MemoryAllocatorDump* memory_allocator_dump = | |
52 process_memory_dump_->CreateAllocatorDump( | |
53 absolute_name.utf8(), | |
54 base::trace_event::MemoryAllocatorDumpGuid(guid)); | |
55 return createWebMemoryAllocatorDump(memory_allocator_dump); | |
56 } | |
57 | |
58 blink::WebMemoryAllocatorDump* | |
59 WebProcessMemoryDumpImpl::createWebMemoryAllocatorDump( | |
60 base::trace_event::MemoryAllocatorDump* memory_allocator_dump) { | |
61 if (!memory_allocator_dump) | |
62 return nullptr; | |
63 | |
64 // Wrap it and return to blink. | |
65 WebMemoryAllocatorDumpImpl* web_memory_allocator_dump_impl = | |
66 new WebMemoryAllocatorDumpImpl(memory_allocator_dump); | |
67 | |
68 // memory_allocator_dumps_ will take ownership of | |
69 // |web_memory_allocator_dumpd_impl|. | |
70 memory_allocator_dumps_.set( | |
71 memory_allocator_dump, adoptPtr(web_memory_allocator_dump_impl)); | |
72 return web_memory_allocator_dump_impl; | |
73 } | |
74 | |
75 blink::WebMemoryAllocatorDump* WebProcessMemoryDumpImpl::getMemoryAllocatorDump( | |
76 const blink::WebString& absolute_name) const { | |
77 // Retrieve the base MemoryAllocatorDump object and then reverse lookup | |
78 // its wrapper. | |
79 base::trace_event::MemoryAllocatorDump* memory_allocator_dump = | |
80 process_memory_dump_->GetAllocatorDump(absolute_name.utf8()); | |
81 if (!memory_allocator_dump) | |
82 return nullptr; | |
83 | |
84 // The only case of (memory_allocator_dump && !web_memory_allocator_dump) | |
85 // is something from blink trying to get a MAD that was created from chromium, | |
86 // which is an odd use case. | |
87 blink::WebMemoryAllocatorDump* web_memory_allocator_dump = | |
88 memory_allocator_dumps_.get(memory_allocator_dump); | |
89 DCHECK(web_memory_allocator_dump); | |
90 return web_memory_allocator_dump; | |
91 } | |
92 | |
93 void WebProcessMemoryDumpImpl::clear() { | |
94 // Clear all the WebMemoryAllocatorDump wrappers. | |
95 memory_allocator_dumps_.clear(); | |
96 | |
97 // Clear the actual MemoryAllocatorDump objects from the underlying PMD. | |
98 process_memory_dump_->Clear(); | |
99 } | |
100 | |
101 void WebProcessMemoryDumpImpl::takeAllDumpsFrom( | |
102 blink::WebProcessMemoryDump* other) { | |
103 auto other_impl = static_cast<WebProcessMemoryDumpImpl*>(other); | |
104 // WebProcessMemoryDumpImpl is a container of WebMemoryAllocatorDump(s) which | |
105 // in turn are wrappers of base::trace_event::MemoryAllocatorDump(s). | |
106 // In order to expose the move and ownership transfer semantics of the | |
107 // underlying ProcessMemoryDump, we need to: | |
108 | |
109 // 1) Move and transfer the ownership of the wrapped | |
110 // base::trace_event::MemoryAllocatorDump(s) instances. | |
111 process_memory_dump_->TakeAllDumpsFrom(other_impl->process_memory_dump_); | |
112 | |
113 // 2) Move and transfer the ownership of the WebMemoryAllocatorDump wrappers. | |
114 const size_t expected_final_size = memory_allocator_dumps_.size() + | |
115 other_impl->memory_allocator_dumps_.size(); | |
116 while (!other_impl->memory_allocator_dumps_.isEmpty()) { | |
117 auto first_entry = other_impl->memory_allocator_dumps_.begin(); | |
118 base::trace_event::MemoryAllocatorDump* memory_allocator_dump = | |
119 first_entry->key; | |
120 memory_allocator_dumps_.set(memory_allocator_dump, | |
121 other_impl->memory_allocator_dumps_.take(memory_allocator_dump)); | |
122 } | |
123 DCHECK_EQ(expected_final_size, memory_allocator_dumps_.size()); | |
124 DCHECK(other_impl->memory_allocator_dumps_.isEmpty()); | |
125 } | |
126 | |
127 void WebProcessMemoryDumpImpl::addOwnershipEdge( | |
128 blink::WebMemoryAllocatorDumpGuid source, | |
129 blink::WebMemoryAllocatorDumpGuid target, | |
130 int importance) { | |
131 process_memory_dump_->AddOwnershipEdge( | |
132 base::trace_event::MemoryAllocatorDumpGuid(source), | |
133 base::trace_event::MemoryAllocatorDumpGuid(target), importance); | |
134 } | |
135 | |
136 void WebProcessMemoryDumpImpl::addOwnershipEdge( | |
137 blink::WebMemoryAllocatorDumpGuid source, | |
138 blink::WebMemoryAllocatorDumpGuid target) { | |
139 process_memory_dump_->AddOwnershipEdge( | |
140 base::trace_event::MemoryAllocatorDumpGuid(source), | |
141 base::trace_event::MemoryAllocatorDumpGuid(target)); | |
142 } | |
143 | |
144 void WebProcessMemoryDumpImpl::addSuballocation( | |
145 blink::WebMemoryAllocatorDumpGuid source, | |
146 const blink::WebString& target_node_name) { | |
147 process_memory_dump_->AddSuballocation( | |
148 base::trace_event::MemoryAllocatorDumpGuid(source), | |
149 target_node_name.utf8()); | |
150 } | |
151 | |
152 SkTraceMemoryDump* WebProcessMemoryDumpImpl::createDumpAdapterForSkia( | |
153 const blink::WebString& dump_name_prefix) { | |
154 sk_trace_dump_list_.push_back(base::WrapUnique( | |
155 new skia::SkiaTraceMemoryDumpImpl( | |
156 dump_name_prefix.utf8(), level_of_detail_, process_memory_dump_))); | |
157 return sk_trace_dump_list_.back().get(); | |
158 } | |
159 | |
160 blink::WebMemoryAllocatorDump* | |
161 WebProcessMemoryDumpImpl::createDiscardableMemoryAllocatorDump( | |
162 const std::string& name, | |
163 base::DiscardableMemory* discardable) { | |
164 base::trace_event::MemoryAllocatorDump* dump = | |
165 discardable->CreateMemoryAllocatorDump(name.c_str(), | |
166 process_memory_dump_); | |
167 return createWebMemoryAllocatorDump(dump); | |
168 } | |
169 | |
170 void WebProcessMemoryDumpImpl::dumpHeapUsage( | |
171 const base::hash_map<base::trace_event::AllocationContext, | |
172 base::trace_event::AllocationMetrics>& metrics_by_context, | |
173 base::trace_event::TraceEventMemoryOverhead& overhead, | |
174 const char* allocator_name) { | |
175 process_memory_dump_->DumpHeapUsage(metrics_by_context, overhead, allocator_na
me); | |
176 } | |
177 | |
178 } // namespace content | |
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