base/trace_event/process_memory_maps_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_MAPS_DUMP_PROVIDER_H_
   6 #define BASE_TRACE_EVENT_PROCESS_MEMORY_MAPS_DUMP_PROVIDER_H_
   7
   8 #include <istream>
   9
  10 #include "base/gtest_prod_util.h"
  11 #include "base/memory/singleton.h"
  12 #include "base/trace_event/memory_dump_provider.h"
  13
  14 namespace base {
  15 namespace trace_event {
  16
  17 // Dump provider which collects process-wide memory stats.
  18 class BASE_EXPORT ProcessMemoryMapsDumpProvider : public MemoryDumpProvider {
  19  public:
  20   static ProcessMemoryMapsDumpProvider* GetInstance();
  21
  22   // MemoryDumpProvider implementation.
  23   bool OnMemoryDump(ProcessMemoryDump* pmd) override;
  24
  25  private:
  26   friend struct DefaultSingletonTraits<ProcessMemoryMapsDumpProvider>;
  27   FRIEND_TEST_ALL_PREFIXES(ProcessMemoryMapsDumpProviderTest, ParseProcSmaps);
  28
  29 #if defined(OS_LINUX) || defined(OS_ANDROID)
  30   static std::istream* proc_smaps_for_testing;
  31 #endif
  32
  33   ProcessMemoryMapsDumpProvider();
  34   ~ProcessMemoryMapsDumpProvider() override;
  35
  36   DISALLOW_COPY_AND_ASSIGN(ProcessMemoryMapsDumpProvider);
  37 };
  38
  39 }  // namespace trace_event
  40 }  // namespace base
  41
  42 #endif  // BASE_TRACE_EVENT_PROCESS_MEMORY_MAPS_DUMP_PROVIDER_H_