third_party/blink/renderer/core/workers/dedicated_worker_thread.cc

/*
 * Copyright (C) 2009 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
 * copyright notice, this list of conditions and the following disclaimer
 * in the documentation and/or other materials provided with the
 * distribution.
 *     * Neither the name of Google Inc. nor the names of its
 * contributors may be used to endorse or promote products derived from
 * this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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#include "third_party/blink/renderer/core/workers/dedicated_worker_thread.h"

#include <memory>
#include <utility>

#include "base/memory/ptr_util.h"
#include "third_party/blink/renderer/core/dom/document.h"
#include "third_party/blink/renderer/core/execution_context/execution_context.h"
#include "third_party/blink/renderer/core/frame/local_frame.h"
#include "third_party/blink/renderer/core/workers/dedicated_worker_global_scope.h"
#include "third_party/blink/renderer/core/workers/dedicated_worker_object_proxy.h"
#include "third_party/blink/renderer/core/workers/global_scope_creation_params.h"
#include "third_party/blink/renderer/core/workers/worker_backing_thread.h"
#include "third_party/blink/renderer/platform/web_thread_supporting_gc.h"

namespace blink {

std::unique_ptr<DedicatedWorkerThread> DedicatedWorkerThread::Create(
    const String& name,
    ExecutionContext* parent_execution_context,
    DedicatedWorkerObjectProxy& worker_object_proxy) {
  return base::WrapUnique(new DedicatedWorkerThread(
      name, parent_execution_context, worker_object_proxy));
}

DedicatedWorkerThread::DedicatedWorkerThread(
    const String& name,
    ExecutionContext* parent_execution_context,
    DedicatedWorkerObjectProxy& worker_object_proxy)
    : WorkerThread(worker_object_proxy),
      name_(name.IsolatedCopy()),
      worker_object_proxy_(worker_object_proxy),
      is_nested_worker_(parent_execution_context->IsWorkerGlobalScope()) {
  FrameOrWorkerScheduler* scheduler =
      parent_execution_context ? parent_execution_context->GetScheduler()
                               : nullptr;
  worker_backing_thread_ =
      WorkerBackingThread::Create(ThreadCreationParams(GetThreadType())
                                      .SetFrameOrWorkerScheduler(scheduler));
}

DedicatedWorkerThread::~DedicatedWorkerThread() = default;

void DedicatedWorkerThread::ClearWorkerBackingThread() {
  worker_backing_thread_ = nullptr;
}

WorkerOrWorkletGlobalScope* DedicatedWorkerThread::CreateWorkerGlobalScope(
    std::unique_ptr<GlobalScopeCreationParams> creation_params) {
  return new DedicatedWorkerGlobalScope(name_, std::move(creation_params), this,
                                        time_origin_);
}

}  // namespace blink