chromium/third_party/blink/renderer/core/workers/worker_backing_thread.cc

// Copyright 2016 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "third_party/blink/renderer/core/workers/worker_backing_thread.h"

#include <memory>

#include "base/location.h"
#include "base/synchronization/lock.h"
#include "third_party/blink/public/common/features.h"
#include "third_party/blink/public/platform/platform.h"
#include "third_party/blink/public/web/blink.h"
#include "third_party/blink/renderer/bindings/core/v8/v8_binding_for_core.h"
#include "third_party/blink/renderer/bindings/core/v8/v8_context_snapshot.h"
#include "third_party/blink/renderer/bindings/core/v8/v8_gc_controller.h"
#include "third_party/blink/renderer/bindings/core/v8/v8_idle_task_runner.h"
#include "third_party/blink/renderer/bindings/core/v8/v8_initializer.h"
#include "third_party/blink/renderer/core/inspector/worker_thread_debugger.h"
#include "third_party/blink/renderer/core/workers/worker_backing_thread_startup_data.h"
#include "third_party/blink/renderer/platform/runtime_enabled_features.h"
#include "third_party/blink/renderer/platform/scheduler/public/main_thread.h"
#include "third_party/blink/renderer/platform/scheduler/public/main_thread_scheduler.h"
#include "third_party/blink/renderer/platform/wtf/cross_thread_functional.h"
#include "third_party/blink/renderer/platform/wtf/hash_set.h"

namespace blink {

namespace {

base::Lock& IsolatesLock() { … }

HashSet<v8::Isolate*>& Isolates() EXCLUSIVE_LOCKS_REQUIRED(IsolatesLock()) { … }

HashSet<v8::Isolate*>& ForegroundedIsolates()
    EXCLUSIVE_LOCKS_REQUIRED(IsolatesLock()) { … }

v8::Isolate::Priority& IsolateCurrentPriority()
    EXCLUSIVE_LOCKS_REQUIRED(IsolatesLock()) { … }

bool& BatterySaverModeEnabled() EXCLUSIVE_LOCKS_REQUIRED(IsolatesLock()) { … }

void AddWorkerIsolate(v8::Isolate* isolate) { … }

void RemoveWorkerIsolate(v8::Isolate* isolate) { … }

void AddForegroundedWorkerIsolate(v8::Isolate* isolate) { … }

void RemoveForegroundedWorkerIsolate(v8::Isolate* isolate) { … }

}  // namespace

// Wrapper functions defined in third_party/blink/public/web/blink.h
void MemoryPressureNotificationToAllIsolates(v8::MemoryPressureLevel level) { … }

void SetBatterySaverModeForAllIsolates(bool battery_saver_mode_enabled) { … }

WorkerBackingThread::WorkerBackingThread(const ThreadCreationParams& params)
    : … { … }

WorkerBackingThread::~WorkerBackingThread() = default;

void WorkerBackingThread::InitializeOnBackingThread(
    const WorkerBackingThreadStartupData& startup_data) { … }

void WorkerBackingThread::ShutdownOnBackingThread() { … }

void WorkerBackingThread::SetForegrounded() { … }

// static
void WorkerBackingThread::MemoryPressureNotificationToWorkerThreadIsolates(
    v8::MemoryPressureLevel level) { … }

// static
void WorkerBackingThread::SetWorkerThreadIsolatesPriority(
    v8::Isolate::Priority priority) { … }

// static
void WorkerBackingThread::SetBatterySaverModeForWorkerThreadIsolates(
    bool battery_saver_mode_enabled) { … }

}  // namespace blink