base/trace_event/process_memory_totals_dump_provider.h

   1 // Copyright 2015 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 BASE_TRACE_EVENT_PROCESS_MEMORY_TOTALS_DUMP_PROVIDER_H_
   6 #define BASE_TRACE_EVENT_PROCESS_MEMORY_TOTALS_DUMP_PROVIDER_H_
   7
   8 #include "base/gtest_prod_util.h"
   9 #include "base/memory/scoped_ptr.h"
  10 #include "base/memory/singleton.h"
  11 #include "base/trace_event/memory_dump_provider.h"
  12
  13 namespace base {
  14
  15 class ProcessMetrics;
  16
  17 namespace trace_event {
  18
  19 // Dump provider which collects process-wide memory stats.
  20 class BASE_EXPORT ProcessMemoryTotalsDumpProvider : public MemoryDumpProvider {
  21  public:
  22   static ProcessMemoryTotalsDumpProvider* GetInstance();
  23
  24   // MemoryDumpProvider implementation.
  25   bool OnMemoryDump(const MemoryDumpArgs& args,
  26                     ProcessMemoryDump* pmd) override;
  27
  28  private:
  29   friend struct DefaultSingletonTraits<ProcessMemoryTotalsDumpProvider>;
  30   FRIEND_TEST_ALL_PREFIXES(ProcessMemoryTotalsDumpProviderTest, DumpRSS);
  31
  32   static uint64 rss_bytes_for_testing;
  33
  34   ProcessMemoryTotalsDumpProvider();
  35   ~ProcessMemoryTotalsDumpProvider() override;
  36
  37   scoped_ptr<ProcessMetrics> process_metrics_;
  38
  39   DISALLOW_COPY_AND_ASSIGN(ProcessMemoryTotalsDumpProvider);
  40 };
  41
  42 }  // namespace trace_event
  43 }  // namespace base
  44
  45 #endif  // BASE_TRACE_EVENT_PROCESS_MEMORY_TOTALS_DUMP_PROVIDER_H_