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      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 <stdint.h>
      9 
     10 #include "base/gtest_prod_util.h"
     11 #include "base/macros.h"
     12 #include "base/memory/scoped_ptr.h"
     13 #include "base/memory/singleton.h"
     14 #include "base/trace_event/memory_dump_provider.h"
     15 
     16 namespace base {
     17 
     18 class ProcessMetrics;
     19 
     20 namespace trace_event {
     21 
     22 // Dump provider which collects process-wide memory stats.
     23 class BASE_EXPORT ProcessMemoryTotalsDumpProvider : public MemoryDumpProvider {
     24  public:
     25   static ProcessMemoryTotalsDumpProvider* GetInstance();
     26 
     27   // MemoryDumpProvider implementation.
     28   bool OnMemoryDump(const MemoryDumpArgs& args,
     29                     ProcessMemoryDump* pmd) override;
     30 
     31  private:
     32   friend struct DefaultSingletonTraits<ProcessMemoryTotalsDumpProvider>;
     33   FRIEND_TEST_ALL_PREFIXES(ProcessMemoryTotalsDumpProviderTest, DumpRSS);
     34 
     35   static uint64_t rss_bytes_for_testing;
     36 
     37   ProcessMemoryTotalsDumpProvider();
     38   ~ProcessMemoryTotalsDumpProvider() override;
     39 
     40   scoped_ptr<ProcessMetrics> process_metrics_;
     41 
     42   DISALLOW_COPY_AND_ASSIGN(ProcessMemoryTotalsDumpProvider);
     43 };
     44 
     45 }  // namespace trace_event
     46 }  // namespace base
     47 
     48 #endif  // BASE_TRACE_EVENT_PROCESS_MEMORY_TOTALS_DUMP_PROVIDER_H_
     49