mirror of
https://github.com/roytam1/palemoon27.git
synced 2026-06-09 01:48:55 +00:00
trav90
83 lines
2.3 KiB
C++
83 lines
2.3 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "AbstractThread.h"
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#include "MediaTaskQueue.h"
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#include "nsThreadUtils.h"
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#include "mozilla/ClearOnShutdown.h"
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#include "mozilla/StaticPtr.h"
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#include "mozilla/unused.h"
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namespace mozilla {
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StaticRefPtr<AbstractThread> sMainThread;
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ThreadLocal<AbstractThread*> AbstractThread::sCurrentThreadTLS;
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class XPCOMThreadWrapper : public AbstractThread
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{
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public:
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explicit XPCOMThreadWrapper(nsIThread* aTarget)
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: AbstractThread(/* aRequireTailDispatch = */ false)
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, mTarget(aTarget)
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{}
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virtual void Dispatch(already_AddRefed<nsIRunnable> aRunnable,
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DispatchFailureHandling aFailureHandling = AssertDispatchSuccess,
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DispatchReason aReason = NormalDispatch) override
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{
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nsCOMPtr<nsIRunnable> r = aRunnable;
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AbstractThread* currentThread;
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if (aReason != TailDispatch && (currentThread = GetCurrent()) && currentThread->RequiresTailDispatch()) {
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currentThread->TailDispatcher().AddTask(this, r.forget(), aFailureHandling);
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return;
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}
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nsresult rv = mTarget->Dispatch(r, NS_DISPATCH_NORMAL);
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MOZ_DIAGNOSTIC_ASSERT(aFailureHandling == DontAssertDispatchSuccess || NS_SUCCEEDED(rv));
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unused << rv;
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}
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virtual bool IsCurrentThreadIn() override
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{
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bool in = NS_GetCurrentThread() == mTarget;
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MOZ_ASSERT_IF(in, GetCurrent() == this);
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return in;
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}
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virtual TaskDispatcher& TailDispatcher() override { MOZ_CRASH("Not implemented!"); }
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private:
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nsRefPtr<nsIThread> mTarget;
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};
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AbstractThread*
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AbstractThread::MainThread()
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{
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MOZ_ASSERT(sMainThread);
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return sMainThread;
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}
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void
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AbstractThread::InitStatics()
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{
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MOZ_ASSERT(NS_IsMainThread());
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MOZ_ASSERT(!sMainThread);
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nsCOMPtr<nsIThread> mainThread;
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NS_GetMainThread(getter_AddRefs(mainThread));
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MOZ_DIAGNOSTIC_ASSERT(mainThread);
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sMainThread = new XPCOMThreadWrapper(mainThread.get());
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ClearOnShutdown(&sMainThread);
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if (!sCurrentThreadTLS.init()) {
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MOZ_CRASH();
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}
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sCurrentThreadTLS.set(sMainThread);
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}
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} // namespace mozilla
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