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Unified 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: Add memtrack to column name Created 5 years, 2 months ago
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Index: components/tracing/graphics_memory_dump_provider_android.h
diff --git a/components/tracing/graphics_memory_dump_provider_android.h b/components/tracing/graphics_memory_dump_provider_android.h
new file mode 100644
index 0000000000000000000000000000000000000000..3a9aa656ace7a86597bee5356a61fd5070c81d3a
--- /dev/null
+++ b/components/tracing/graphics_memory_dump_provider_android.h
@@ -0,0 +1,52 @@
+// 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_GRAPHICS_MEMORY_DUMP_PROVIDER_ANDROID_H_
+#define COMPONENTS_TRACING_GRAPHICS_MEMORY_DUMP_PROVIDER_ANDROID_H_
+
+#include <string>
+
+#include "base/containers/hash_tables.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 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.
+ base::hash_set<std::string> key_names_;
+
+ DISALLOW_COPY_AND_ASSIGN(GraphicsMemoryDumpProvider);
+};
+
+} // namespace tracing
+
+#endif // COMPONENTS_TRACING_GRAPHICS_MEMORY_DUMP_PROVIDER_ANDROID_H_
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