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// Copyright (c) 2011 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "content/public/renderer/render_thread.h"
#include "base/no_destructor.h"
#include "base/threading/thread_checker_impl.h"
#include "base/threading/thread_local.h"
namespace content {
namespace {
// Keep the global RenderThread in a TLS slot so it is impossible to access
// incorrectly from the wrong thread.
base::ThreadLocalPointer<RenderThread>& GetRenderThreadLocalPointer() {
static base::NoDestructor<base::ThreadLocalPointer<RenderThread>> tls;
return *tls;
}
static const base::ThreadCheckerImpl& GetThreadChecker() {
static base::NoDestructor<base::ThreadCheckerImpl> checker;
return *checker;
}
} // namespace
RenderThread* RenderThread::Get() {
return GetRenderThreadLocalPointer().Get();
}
bool RenderThread::IsMainThread() {
// TODO(avi): Eventually move to be based on WTF::IsMainThread().
return GetThreadChecker().CalledOnValidThread();
}
RenderThread::RenderThread() {
GetRenderThreadLocalPointer().Set(this);
}
RenderThread::~RenderThread() {
GetRenderThreadLocalPointer().Set(nullptr);
}
} // namespace content
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