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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 #ifndef WebProcessMemoryDumpImpl_h | |
6 #define WebProcessMemoryDumpImpl_h | |
7 | |
8 #include "base/gtest_prod_util.h" | |
9 #include "base/macros.h" | |
10 #include "base/trace_event/memory_dump_request_args.h" | |
11 #include "platform/WebProcessMemoryDump.h" | |
12 #include "wtf/HashMap.h" | |
13 #include "wtf/OwnPtr.h" | |
14 | |
15 #include <map> | |
16 #include <memory> | |
17 #include <vector> | |
18 | |
19 namespace base { | |
20 class DiscardableMemory; | |
21 namespace trace_event { | |
22 class MemoryAllocatorDump; | |
23 class ProcessMemoryDump; | |
24 } // namespace base | |
25 } // namespace trace_event | |
26 | |
27 namespace skia { | |
28 class SkiaTraceMemoryDumpImpl; | |
29 } // namespace skia | |
30 | |
31 namespace blink { | |
32 | |
33 class WebMemoryAllocatorDumpImpl; | |
34 | |
35 // Implements the blink::WebProcessMemoryDump interface by means of proxying the | |
36 // calls to createMemoryAllocatorDump() to the underlying | |
37 // base::trace_event::ProcessMemoryDump instance. | |
38 class PLATFORM_EXPORT WebProcessMemoryDumpImpl final | |
39 : public NON_EXPORTED_BASE(blink::WebProcessMemoryDump) { | |
40 public: | |
41 // Creates a standalone WebProcessMemoryDumpImp, which owns the underlying | |
42 // ProcessMemoryDump. | |
43 WebProcessMemoryDumpImpl(); | |
44 | |
45 // Wraps (without owning) an existing ProcessMemoryDump. | |
46 explicit WebProcessMemoryDumpImpl( | |
47 base::trace_event::MemoryDumpLevelOfDetail level_of_detail, | |
48 base::trace_event::ProcessMemoryDump* process_memory_dump); | |
49 | |
50 ~WebProcessMemoryDumpImpl() override; | |
51 | |
52 // blink::WebProcessMemoryDump implementation. | |
53 blink::WebMemoryAllocatorDump* createMemoryAllocatorDump( | |
54 const blink::WebString& absolute_name) override; | |
55 blink::WebMemoryAllocatorDump* createMemoryAllocatorDump( | |
56 const blink::WebString& absolute_name, | |
57 blink::WebMemoryAllocatorDumpGuid guid) override; | |
58 blink::WebMemoryAllocatorDump* getMemoryAllocatorDump( | |
59 const blink::WebString& absolute_name) const override; | |
60 void clear() override; | |
61 void takeAllDumpsFrom(blink::WebProcessMemoryDump* other) override; | |
62 void addOwnershipEdge(blink::WebMemoryAllocatorDumpGuid source, | |
63 blink::WebMemoryAllocatorDumpGuid target, | |
64 int importance) override; | |
65 void addOwnershipEdge(blink::WebMemoryAllocatorDumpGuid source, | |
66 blink::WebMemoryAllocatorDumpGuid target) override; | |
67 void addSuballocation(blink::WebMemoryAllocatorDumpGuid source, | |
68 const blink::WebString& target_node_name) override; | |
69 SkTraceMemoryDump* createDumpAdapterForSkia( | |
70 const blink::WebString& dump_name_prefix) override; | |
71 | |
72 const base::trace_event::ProcessMemoryDump* process_memory_dump() const { | |
73 return process_memory_dump_; | |
74 } | |
75 | |
76 blink::WebMemoryAllocatorDump* createDiscardableMemoryAllocatorDump( | |
77 const std::string& name, | |
78 base::DiscardableMemory* discardable) override; | |
79 | |
80 void dumpHeapUsage( | |
81 const base::hash_map<base::trace_event::AllocationContext, base::trace_eve
nt::AllocationMetrics>& | |
82 metrics_by_context, | |
83 base::trace_event::TraceEventMemoryOverhead& overhead, | |
84 const char* allocator_name) override; | |
85 | |
86 private: | |
87 FRIEND_TEST_ALL_PREFIXES(WebProcessMemoryDumpImplTest, IntegrationTest); | |
88 | |
89 blink::WebMemoryAllocatorDump* createWebMemoryAllocatorDump( | |
90 base::trace_event::MemoryAllocatorDump* memory_allocator_dump); | |
91 | |
92 // Only for the case of ProcessMemoryDump being owned (i.e. the default ctor). | |
93 std::unique_ptr<base::trace_event::ProcessMemoryDump> owned_process_memory_dum
p_; | |
94 | |
95 // The underlying ProcessMemoryDump instance to which the | |
96 // createMemoryAllocatorDump() calls will be proxied to. | |
97 base::trace_event::ProcessMemoryDump* process_memory_dump_; // Not owned. | |
98 | |
99 // TODO(ssid): Remove it once this information is added to ProcessMemoryDump. | |
100 base::trace_event::MemoryDumpLevelOfDetail level_of_detail_; | |
101 | |
102 // Reverse index of MemoryAllocatorDump -> WebMemoryAllocatorDumpImpl wrapper. | |
103 // By design WebMemoryDumpProvider(s) are not supposed to hold the pointer | |
104 // to the WebProcessMemoryDump passed as argument of the onMemoryDump() call. | |
105 // Those pointers are valid only within the scope of the call and can be | |
106 // safely torn down once the WebProcessMemoryDumpImpl itself is destroyed. | |
107 HashMap<base::trace_event::MemoryAllocatorDump*, | |
108 OwnPtr<WebMemoryAllocatorDumpImpl>> memory_allocator_dumps_; | |
109 | |
110 // Stores SkTraceMemoryDump for the current ProcessMemoryDump. | |
111 std::vector<std::unique_ptr<skia::SkiaTraceMemoryDumpImpl>> sk_trace_dump_list
_; | |
112 | |
113 DISALLOW_COPY_AND_ASSIGN(WebProcessMemoryDumpImpl); | |
114 }; | |
115 | |
116 } // namespace blink | |
117 | |
118 #endif // WebProcessMemoryDumpImpl_h | |
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