gin/v8_isolate_memory_dump_provider.h

   1 // Copyright 2015 The Chromium Authors
   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/memory/raw_ptr.h"
   9 #include "base/task/single_thread_task_runner.h"
  10 #include "base/trace_event/memory_dump_provider.h"
  11 #include "gin/gin_export.h"
  12
  13 namespace gin {
  14
  15 class IsolateHolder;
  16
  17 // Memory dump provider for the chrome://tracing infrastructure. It dumps
  18 // summarized memory stats about the V8 Isolate.
  19 class V8IsolateMemoryDumpProvider
  20     : public base::trace_event::MemoryDumpProvider {
  21  public:
  22   V8IsolateMemoryDumpProvider(
  23       IsolateHolder* isolate_holder,
  24       scoped_refptr<base::SingleThreadTaskRunner> task_runner);
  25   V8IsolateMemoryDumpProvider(const V8IsolateMemoryDumpProvider&) = delete;
  26   V8IsolateMemoryDumpProvider& operator=(const V8IsolateMemoryDumpProvider&) =
  27       delete;
  28   ~V8IsolateMemoryDumpProvider() override;
  29
  30   // MemoryDumpProvider implementation.
  31   bool OnMemoryDump(
  32       const base::trace_event::MemoryDumpArgs& args,
  33       base::trace_event::ProcessMemoryDump* process_memory_dump) override;
  34
  35  private:
  36   void DumpHeapStatistics(
  37       const base::trace_event::MemoryDumpArgs& args,
  38       base::trace_event::ProcessMemoryDump* process_memory_dump);
  39
  40   raw_ptr<IsolateHolder> isolate_holder_;  // Not owned.
  41 };
  42
  43 }  // namespace gin
  44
  45 #endif  // GIN_V8_ISOLATE_MEMORY_DUMP_PROVIDER_H_