chromium/third_party/blink/renderer/bindings/core/v8/v8_gc_for_context_dispose.cc

/*
 * Copyright (C) 2010 Google Inc. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are
 * met:
 *
 *     * Redistributions of source code must retain the above copyright
 * notice, this list of conditions and the following disclaimer.
 *     * Redistributions in binary form must reproduce the above
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 * in the documentation and/or other materials provided with the
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 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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#include "third_party/blink/renderer/bindings/core/v8/v8_gc_for_context_dispose.h"

#include "base/process/process_metrics.h"
#include "build/build_config.h"
#include "third_party/blink/public/platform/platform.h"
#include "third_party/blink/renderer/platform/heap/process_heap.h"
#include "third_party/blink/renderer/platform/instrumentation/histogram.h"
#include "third_party/blink/renderer/platform/instrumentation/memory_pressure_listener.h"
#include "third_party/blink/renderer/platform/wtf/std_lib_extras.h"
#include "v8/include/v8.h"

namespace blink {
namespace {

#if BUILDFLAG(IS_ANDROID)
size_t GetMemoryUsage(v8::Isolate* isolate) {
  size_t usage =
      base::ProcessMetrics::CreateCurrentProcessMetrics()->GetMallocUsage() +
      WTF::Partitions::TotalActiveBytes() +
      ProcessHeap::TotalAllocatedObjectSize();
  v8::HeapStatistics v8_heap_statistics;
  isolate->GetHeapStatistics(&v8_heap_statistics);
  usage += v8_heap_statistics.total_heap_size();
  return usage;
}
#endif  // BUILDFLAG(IS_ANDROID)

}  // namespace

// static
V8GCForContextDispose& V8GCForContextDispose::Instance() { … }

void V8GCForContextDispose::NotifyContextDisposed(
    v8::Isolate* isolate,
    bool is_main_frame,
    WindowProxy::FrameReuseStatus frame_reuse_status) { … }

void V8GCForContextDispose::SetForcePageNavigationGC() { … }

}  // namespace blink