base/android/meminfo_dump_provider.h

   1 // Copyright 2023 The Chromium Authors
   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 BASE_ANDROID_MEMINFO_DUMP_PROVIDER_H_
   6 #define BASE_ANDROID_MEMINFO_DUMP_PROVIDER_H_
   7
   8 #include "base/base_export.h"
   9 #include "base/no_destructor.h"
  10 #include "base/time/time.h"
  11 #include "base/trace_event/base_tracing.h"
  12
  13 namespace base::android {
  14
  15 class BASE_EXPORT MeminfoDumpProvider
  16     : public base::trace_event::MemoryDumpProvider {
  17  public:
  18   // Returns the instance for testing.
  19   static MeminfoDumpProvider& Initialize();
  20   bool OnMemoryDump(const base::trace_event::MemoryDumpArgs& args,
  21                     base::trace_event::ProcessMemoryDump* pmd) override;
  22
  23   static constexpr char kDumpProviderName[] = "android_meminfo";
  24   static constexpr char kDumpName[] = "meminfo";
  25   static constexpr char kIsStaleName[] = "is_stale";
  26   static constexpr char kPssMetricName[] = "other_pss";
  27   static constexpr char kPrivateDirtyMetricName[] = "other_private_dirty";
  28
  29  private:
  30   friend class base::NoDestructor<MeminfoDumpProvider>;
  31   MeminfoDumpProvider();
  32
  33   base::TimeTicks last_collection_time_;
  34 };
  35
  36 }  // namespace base::android
  37
  38 #endif  // BASE_ANDROID_MEMINFO_DUMP_PROVIDER_H_