1 files changed, 39 insertions, 0 deletions
diff --git a/catapult/systrace/atrace_helper/jni/libmemtrack_wrapper.h b/catapult/systrace/atrace_helper/jni/libmemtrack_wrapper.h
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index 00000000..cec5cecd
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+++ b/catapult/systrace/atrace_helper/jni/libmemtrack_wrapper.h
@@ -0,0 +1,39 @@
+// Copyright 2017 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 LIBMEMTRACK_WRAPPER_H_
+#define LIBMEMTRACK_WRAPPER_H_
+
+#include <stdint.h>
+
+// Wrapper on top of libmemtrack API.
+
+// Opaque structure with memory stats.
+// See $ANDROID/system/core/libmemtrack/include/memtrack/memtrack.h for details.
+struct libmemtrack_proc;
+
+// These numbers are vendor-specific and can't be trusted as a stable metric
+// across different hardware or driver versions.
+class MemtrackProc {
+ public:
+  explicit MemtrackProc(int pid);
+  ~MemtrackProc();
+
+  uint64_t graphics_total() const;
+  uint64_t graphics_pss() const;
+  uint64_t gl_total() const;
+  uint64_t gl_pss() const;
+  uint64_t other_total() const;
+  uint64_t other_pss() const;
+
+  bool has_errors() const { return proc_ == nullptr; };
+
+ private:
+  MemtrackProc(const MemtrackProc&) = delete;
+  void operator=(const MemtrackProc&) = delete;
+
+  libmemtrack_proc* proc_ = nullptr;
+};
+
+#endif  // LIBMEMTRACK_WRAPPER_H_