| // Copyright 2015 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef COMPONENTS_TRACING_COMMON_GRAPHICS_MEMORY_DUMP_PROVIDER_ANDROID_H_ |
| #define COMPONENTS_TRACING_COMMON_GRAPHICS_MEMORY_DUMP_PROVIDER_ANDROID_H_ |
| |
| #include <stddef.h> |
| |
| #include <string> |
| #include <unordered_set> |
| |
| #include "base/gtest_prod_util.h" |
| #include "base/macros.h" |
| #include "base/memory/singleton.h" |
| #include "base/trace_event/memory_dump_provider.h" |
| #include "components/tracing/tracing_export.h" |
| |
| namespace tracing { |
| |
| // Dump provider which collects memory stats about graphics memory on Android. |
| // This requires the presence of the memtrack_helper daemon, which must be |
| // executed separetely via a (root) adb shell command. The dump provider will |
| // fail (and hence disabled by the MemoryDumpManager) in absence of the helper. |
| // See the design-doc https://goo.gl/4Y30p9 for more details. |
| class TRACING_EXPORT GraphicsMemoryDumpProvider |
| : public base::trace_event::MemoryDumpProvider { |
| public: |
| static GraphicsMemoryDumpProvider* GetInstance(); |
| |
| // MemoryDumpProvider implementation. |
| bool OnMemoryDump(const base::trace_event::MemoryDumpArgs& args, |
| base::trace_event::ProcessMemoryDump* pmd) override; |
| |
| private: |
| FRIEND_TEST_ALL_PREFIXES(GraphicsMemoryDumpProviderTest, ParseResponse); |
| friend struct base::DefaultSingletonTraits<GraphicsMemoryDumpProvider>; |
| |
| void ParseResponseAndAddToDump(const char* buf, |
| size_t length, |
| base::trace_event::ProcessMemoryDump* pmd); |
| |
| GraphicsMemoryDumpProvider(); |
| ~GraphicsMemoryDumpProvider() override; |
| |
| static const char kDumpBaseName[]; // Used by the unittest. |
| |
| // Stores key names coming from the memtrack helper in long-lived storage. |
| // This is to allow using cheap char* strings in tracing without copies. |
| std::unordered_set<std::string> key_names_; |
| |
| DISALLOW_COPY_AND_ASSIGN(GraphicsMemoryDumpProvider); |
| }; |
| |
| } // namespace tracing |
| |
| #endif // COMPONENTS_TRACING_COMMON_GRAPHICS_MEMORY_DUMP_PROVIDER_ANDROID_H_ |