gin/v8_isolate_memory_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 GIN_V8_ISOLATE_MEMORY_DUMP_PROVIDER_H_
   6 #define GIN_V8_ISOLATE_MEMORY_DUMP_PROVIDER_H_
   7
   8 #include "base/trace_event/memory_dump_provider.h"
   9 #include "gin/gin_export.h"
  10
  11 namespace gin {
  12
  13 class IsolateHolder;
  14
  15 // Memory dump provider for the chrome://tracing infrastructure. It dumps
  16 // summarized memory stats about the V8 Isolate.
  17 class V8IsolateMemoryDumpProvider
  18     : public base::trace_event::MemoryDumpProvider {
  19  public:
  20   explicit V8IsolateMemoryDumpProvider(IsolateHolder* isolate_holder);
  21   ~V8IsolateMemoryDumpProvider() override;
  22
  23   // MemoryDumpProvider implementation.
  24   bool OnMemoryDump(base::trace_event::ProcessMemoryDump* pmd) override;
  25
  26  private:
  27   IsolateHolder* isolate_holder_;  // Not owned.
  28
  29   void DumpMemoryStatistics(base::trace_event::ProcessMemoryDump* pmd);
  30
  31   DISALLOW_COPY_AND_ASSIGN(V8IsolateMemoryDumpProvider);
  32 };
  33
  34 }  // namespace gin
  35
  36 #endif  // GIN_V8_ISOLATE_MEMORY_DUMP_PROVIDER_H_