/* * Copyright (C) 2013 Apple Inc. All rights reserved. * Copyright (C) 2017 Sony Interactive Entertainment Inc. * Copyright (C) 2017 NAVER Corp. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #pragma once #include "CurlContext.h" #include <wtf/HashMap.h> #include <wtf/Lock.h> #include <wtf/Noncopyable.h> #include <wtf/Threading.h> namespace WebCore { class CurlRequestSchedulerClient; class CurlRequestScheduler { WTF_MAKE_NONCOPYABLE(CurlRequestScheduler); friend NeverDestroyed<CurlRequestScheduler>; public: static CurlRequestScheduler& singleton(); ~CurlRequestScheduler() { stopThread(); } bool add(CurlRequestSchedulerClient*); void cancel(CurlRequestSchedulerClient*); void callOnWorkerThread(WTF::Function<void()>&&); private: CurlRequestScheduler() = default; void startThreadIfNeeded(); void stopThreadIfNoMoreJobRunning(); void stopThread(); void executeTasks(); void workerThread(); void startTransfer(CurlRequestSchedulerClient*); void completeTransfer(CURL*, CURLcode); void cancelTransfer(CURL*); void finalizeTransfer(CURL*, Function<void(CurlRequestSchedulerClient*)>); mutable Lock m_mutex; RefPtr<Thread> m_thread; bool m_runThread { false }; Vector<Function<void()>> m_taskQueue; HashMap<CURL*, CurlRequestSchedulerClient*> m_activeJobs; std::unique_ptr<CurlMultiHandle> m_curlMultiHandle; }; } // namespace WebCore