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/macros.h" 11 #include "base/memory/singleton.h" 12 #include "base/trace_event/memory_dump_provider.h" 13 #include "build/build_config.h" 14 15 #if defined(OS_LINUX) || defined(OS_ANDROID) || \ 16 (defined(OS_MACOSX) && !defined(OS_IOS)) 17 #define MALLOC_MEMORY_TRACING_SUPPORTED 18 #endif 19 20 namespace base { 21 namespace trace_event { 22 23 // Dump provider which collects process-wide memory stats. 24 class BASE_EXPORT MallocDumpProvider : public MemoryDumpProvider { 25 public: 26 // Name of the allocated_objects dump. Use this to declare suballocator dumps 27 // from other dump providers. 28 static const char kAllocatedObjects[]; 29 30 static MallocDumpProvider* GetInstance(); 31 32 // MemoryDumpProvider implementation. 33 bool OnMemoryDump(const MemoryDumpArgs& args, 34 ProcessMemoryDump* pmd) override; 35 36 private: 37 friend struct DefaultSingletonTraits<MallocDumpProvider>; 38 39 MallocDumpProvider(); 40 ~MallocDumpProvider() override; 41 42 DISALLOW_COPY_AND_ASSIGN(MallocDumpProvider); 43 }; 44 45 } // namespace trace_event 46 } // namespace base 47 48 #endif // BASE_TRACE_EVENT_MALLOC_DUMP_PROVIDER_H_ 49
