gin/v8_shared_memory_dump_provider.h

   1 // Copyright 2019 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_SHARED_MEMORY_DUMP_PROVIDER_H_
   6 #define GIN_V8_SHARED_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 // Memory dump provider for the chrome://tracing infrastructure. It dumps
  14 // summarized memory stats about V8 Memory shared between Isolates in the same
  15 // process.
  16 class GIN_EXPORT V8SharedMemoryDumpProvider
  17     : public base::trace_event::MemoryDumpProvider {
  18  public:
  19   V8SharedMemoryDumpProvider();
  20   V8SharedMemoryDumpProvider(const V8SharedMemoryDumpProvider&) = delete;
  21   V8SharedMemoryDumpProvider& operator=(const V8SharedMemoryDumpProvider&) =
  22       delete;
  23
  24   // MemoryDumpProvider implementation.
  25   bool OnMemoryDump(
  26       const base::trace_event::MemoryDumpArgs& args,
  27       base::trace_event::ProcessMemoryDump* process_memory_dump) override;
  28
  29   static void Register();
  30 };
  31
  32 }  // namespace gin
  33
  34 #endif  // GIN_V8_SHARED_MEMORY_DUMP_PROVIDER_H_