base/trace_event/malloc_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_MALLOC_DUMP_PROVIDER_H_
   6 #define BASE_TRACE_EVENT_MALLOC_DUMP_PROVIDER_H_
   7
   8 #include <istream>
   9
  10 #include "base/memory/singleton.h"
  11 #include "base/trace_event/memory_dump_provider.h"
  12
  13 namespace base {
  14 namespace trace_event {
  15
  16 // Dump provider which collects process-wide memory stats.
  17 class BASE_EXPORT MallocDumpProvider : public MemoryDumpProvider {
  18  public:
  19   // Name of the allocated_objects dump. Use this to declare suballocator dumps
  20   // from other dump providers.
  21   static const char kAllocatedObjects[];
  22
  23   static MallocDumpProvider* GetInstance();
  24
  25   // MemoryDumpProvider implementation.
  26   bool OnMemoryDump(const MemoryDumpArgs& args,
  27                     ProcessMemoryDump* pmd) override;
  28
  29  private:
  30   friend struct DefaultSingletonTraits<MallocDumpProvider>;
  31
  32   MallocDumpProvider();
  33   ~MallocDumpProvider() override;
  34
  35   DISALLOW_COPY_AND_ASSIGN(MallocDumpProvider);
  36 };
  37
  38 }  // namespace trace_event
  39 }  // namespace base
  40
  41 #endif  // BASE_TRACE_EVENT_MALLOC_DUMP_PROVIDER_H_