forked from mirrors/gecko-dev
93bbbac8e4
The FunctionBroker actors allow the NPAPI process (child) to run methods on the main process (parent). Both the parent and the child run dedicated threads for this task -- this is a top-level protocol.
57 lines
1.4 KiB
C++
57 lines
1.4 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
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* vim: sw=4 ts=4 et :
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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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#ifndef mozilla_plugins_functionbrokerthread_h
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#define mozilla_plugins_functionbrokerthread_h
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#include "nsThreadManager.h"
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namespace mozilla {
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namespace plugins {
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class FunctionBrokerThread
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{
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public:
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void Dispatch(already_AddRefed<nsIRunnable>&& aRunnable)
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{
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mThread->Dispatch(Move(aRunnable), nsIEventTarget::NS_DISPATCH_NORMAL);
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}
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bool IsOnThread()
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{
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bool on;
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return NS_SUCCEEDED(mThread->IsOnCurrentThread(&on)) && on;
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}
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static FunctionBrokerThread* Create()
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{
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MOZ_RELEASE_ASSERT(NS_IsMainThread());
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nsCOMPtr<nsIThread> thread;
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if (NS_FAILED(NS_NewNamedThread("Function Broker", getter_AddRefs(thread)))) {
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return nullptr;
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}
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return new FunctionBrokerThread(thread);
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}
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~FunctionBrokerThread()
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{
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MOZ_RELEASE_ASSERT(NS_IsMainThread());
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mThread->Shutdown();
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}
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private:
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explicit FunctionBrokerThread(nsIThread* aThread) : mThread(aThread)
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{
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MOZ_ASSERT(mThread);
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}
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nsCOMPtr<nsIThread> mThread;
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};
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} // namespace plugins
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} // namespace mozilla
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#endif // mozilla_plugins_functionbrokerthread_h
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