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1 // Copyright 2017 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 LIBMEMTRACK_WRAPPER_H_
6 #define LIBMEMTRACK_WRAPPER_H_
7 
8 #include <stdint.h>
9 
10 // Wrapper on top of libmemtrack API.
11 
12 // Opaque structure with memory stats.
13 // See $ANDROID/system/core/libmemtrack/include/memtrack/memtrack.h for details.
14 struct libmemtrack_proc;
15 
16 // These numbers are vendor-specific and can't be trusted as a stable metric
17 // across different hardware or driver versions.
18 class MemtrackProc {
19  public:
20   explicit MemtrackProc(int pid);
21   ~MemtrackProc();
22 
23   uint64_t graphics_total() const;
24   uint64_t graphics_pss() const;
25   uint64_t gl_total() const;
26   uint64_t gl_pss() const;
27   uint64_t other_total() const;
28   uint64_t other_pss() const;
29 
has_errors()30   bool has_errors() const { return proc_ == nullptr; };
31 
32  private:
33   MemtrackProc(const MemtrackProc&) = delete;
34   void operator=(const MemtrackProc&) = delete;
35 
36   libmemtrack_proc* proc_ = nullptr;
37 };
38 
39 #endif  // LIBMEMTRACK_WRAPPER_H_
40