chromium/third_party/blink/renderer/platform/wtf/threading.cc

// Copyright 2018 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/platform/wtf/threading.h"

#include <atomic>
#include "build/build_config.h"
#include "third_party/blink/renderer/platform/wtf/stack_util.h"
#include "third_party/blink/renderer/platform/wtf/text/text_codec_icu.h"

namespace WTF {

#if !BUILDFLAG(IS_ANDROID) && !BUILDFLAG(IS_WIN)
base::PlatformThreadId CurrentThread() { … }
#endif  // !BUILDFLAG(IS_ANDROID) && !BUILDFLAG(IS_WIN)

// For debugging only -- whether a non-main thread has been created.

#if DCHECK_IS_ON()
static std::atomic_bool g_thread_created(false);

bool IsBeforeThreadCreated() { … }

void WillCreateThread() { … }

void SetIsBeforeThreadCreatedForTest() { … }
#endif

ThreadSpecific<Threading>* Threading::static_data_;

Threading::Threading()
    : … { … }

Threading::~Threading() = default;

void Threading::Initialize() { … }

#if BUILDFLAG(IS_WIN) && defined(COMPILER_MSVC)
size_t Threading::ThreadStackSize() {
  // Needed to bootstrap Threading on Windows, because this value is needed
  // before the main thread data is fully initialized.
  if (!Threading::static_data_->IsSet())
    return internal::ThreadStackSize();

  Threading& data = WtfThreading();
  if (!data.thread_stack_size_)
    data.thread_stack_size_ = internal::ThreadStackSize();
  return data.thread_stack_size_;
}
#endif

}  // namespace WTF