| // 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 |