chromium/third_party/blink/renderer/core/script/script_runner.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:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. 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.
 *
 * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``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 APPLE INC. OR
 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#include "third_party/blink/renderer/core/script/script_runner.h"

#include <algorithm>

#include "base/feature_list.h"
#include "base/metrics/histogram_functions.h"
#include "base/strings/strcat.h"
#include "base/task/single_thread_task_runner.h"
#include "base/trace_event/typed_macros.h"
#include "third_party/blink/public/common/features.h"
#include "third_party/blink/public/platform/platform.h"
#include "third_party/blink/public/platform/task_type.h"
#include "third_party/blink/renderer/core/dom/document.h"
#include "third_party/blink/renderer/core/dom/scriptable_document_parser.h"
#include "third_party/blink/renderer/core/frame/local_dom_window.h"
#include "third_party/blink/renderer/core/frame/local_frame.h"
#include "third_party/blink/renderer/core/loader/document_loader.h"
#include "third_party/blink/renderer/core/script/script_loader.h"
#include "third_party/blink/renderer/platform/scheduler/public/cooperative_scheduling_manager.h"
#include "third_party/blink/renderer/platform/scheduler/public/thread.h"
#include "third_party/blink/renderer/platform/scheduler/public/thread_scheduler.h"
#include "third_party/blink/renderer/platform/wtf/casting.h"

namespace {

// These values are persisted to logs. Entries should not be renumbered and
// numeric values should never be reused.
enum class RaceTaskPriority { … };

const char* RaceTaskPriorityToString(RaceTaskPriority task_priority) { … }

void PostTaskWithLowPriorityUntilTimeout(
    const base::Location& from_here,
    base::OnceClosure task,
    base::TimeDelta timeout,
    scoped_refptr<base::SingleThreadTaskRunner> lower_priority_task_runner,
    scoped_refptr<base::SingleThreadTaskRunner> normal_priority_task_runner) { … }

}  // namespace

namespace blink {

void PostTaskWithLowPriorityUntilTimeoutForTesting(
    const base::Location& from_here,
    base::OnceClosure task,
    base::TimeDelta timeout,
    scoped_refptr<base::SingleThreadTaskRunner> lower_priority_task_runner,
    scoped_refptr<base::SingleThreadTaskRunner> normal_priority_task_runner) { … }

ScriptRunner::ScriptRunner(Document* document)
    : … { … }

void ScriptRunner::QueueScriptForExecution(PendingScript* pending_script,
                                           DelayReasons delay_reasons) { … }

void ScriptRunner::AddDelayReason(DelayReason delay_reason) { … }

void ScriptRunner::RemoveDelayReason(DelayReason delay_reason) { … }

void ScriptRunner::RemoveDelayReasonFromScript(PendingScript* pending_script,
                                               DelayReason delay_reason) { … }

void ScriptRunner::ExecuteAsyncPendingScript(
    PendingScript* pending_script,
    base::TimeTicks ready_to_evaluate_time) { … }

void ScriptRunner::ExecuteForceInOrderPendingScript(
    PendingScript* pending_script) { … }

void ScriptRunner::ExecuteParserBlockingScriptsBlockedByForceInOrder() { … }

void ScriptRunner::PendingScriptFinished(PendingScript* pending_script) { … }

void ScriptRunner::ExecutePendingScript(PendingScript* pending_script) { … }

void ScriptRunner::Trace(Visitor* visitor) const { … }

ScriptRunnerDelayer::ScriptRunnerDelayer(ScriptRunner* script_runner,
                                         ScriptRunner::DelayReason delay_reason)
    : … { … }

void ScriptRunnerDelayer::Activate() { … }

void ScriptRunnerDelayer::Deactivate() { … }

void ScriptRunnerDelayer::Trace(Visitor* visitor) const { … }

}  // namespace blink