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Side by Side Diff: components/tracing/graphics_memory_dump_provider_android.h

Issue 1383733002: [tracing] Add graphics memory dump provider for Android (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master
Patch Set: Rebase Created 5 years, 2 months ago
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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 COMPONENTS_TRACING_GRAPHICS_MEMORY_DUMP_PROVIDER_ANDROID_H_
6 #define COMPONENTS_TRACING_GRAPHICS_MEMORY_DUMP_PROVIDER_ANDROID_H_
7
8 #include <string>
9
10 #include "base/containers/hash_tables.h"
11 #include "base/memory/singleton.h"
12 #include "base/trace_event/memory_dump_provider.h"
13 #include "components/tracing/tracing_export.h"
14
15 namespace tracing {
16
17 // Dump provider which collects memory stats about graphics memory on Android.
18 // This requires the presence of the memtrack_helper daemon, which must be
19 // executed separetely via a (root) adb shell command. The dump provider will
20 // fail (and hence disabled by the MemoryDumpManager) in absence of the helper.
21 // See the design-doc https://goo.gl/4Y30p9 for more details.
22 class TRACING_EXPORT GraphicsMemoryDumpProvider
23 : public base::trace_event::MemoryDumpProvider {
24 public:
25 static GraphicsMemoryDumpProvider* GetInstance();
26
27 // MemoryDumpProvider implementation.
28 bool OnMemoryDump(const base::trace_event::MemoryDumpArgs& args,
29 base::trace_event::ProcessMemoryDump* pmd) override;
30
31 private:
32 friend struct base::DefaultSingletonTraits<GraphicsMemoryDumpProvider>;
33
34 GraphicsMemoryDumpProvider();
35 ~GraphicsMemoryDumpProvider() override;
36
37 // Stores key names coming from the memtrack helper in long-lived storage.
38 // This is to allow using cheap char* strings in tracing without copies.
39 base::hash_set<std::string> key_names_;
40
41 DISALLOW_COPY_AND_ASSIGN(GraphicsMemoryDumpProvider);
42 };
43
44 } // namespace tracing
45
46 #endif // COMPONENTS_TRACING_GRAPHICS_MEMORY_DUMP_PROVIDER_ANDROID_H_
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