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

/*
 * Copyright (C) 2009 Google Inc. All rights reserved.
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 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are
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 *
 *     * Redistributions of source code must retain the above copyright
 * notice, this list of conditions and the following disclaimer.
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 * in the documentation and/or other materials provided with the
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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 "services/metrics/public/cpp/ukm_source_id.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"

namespace blink {

DedicatedWorkerThread::DedicatedWorkerThread(
    ExecutionContext* parent_execution_context,
    DedicatedWorkerObjectProxy& worker_object_proxy,
    mojo::PendingRemote<mojom::blink::DedicatedWorkerHost>
        dedicated_worker_host)
    : WorkerThread(worker_object_proxy),
      worker_object_proxy_(worker_object_proxy),
      pending_dedicated_worker_host_(std::move(dedicated_worker_host)) {
  FrameOrWorkerScheduler* scheduler =
      parent_execution_context ? parent_execution_context->GetScheduler()
                               : nullptr;
  worker_backing_thread_ = std::make_unique<WorkerBackingThread>(
      ThreadCreationParams(GetThreadType())
          .SetFrameOrWorkerScheduler(scheduler));
}

DedicatedWorkerThread::~DedicatedWorkerThread() = default;

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

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

}  // namespace blink