1/* 2 * Copyright (C) 2012 Apple Inc. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 7 * 1. Redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer. 9 * 2. Redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in the 11 * documentation and/or other materials provided with the distribution. 12 * 13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' 14 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, 15 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS 17 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 18 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 19 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 20 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 21 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 22 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 23 * THE POSSIBILITY OF SUCH DAMAGE. 24 */ 25 26#ifndef HostRecord_h 27#define HostRecord_h 28 29#if ENABLE(NETWORK_PROCESS) 30 31#include <WebCore/ResourceLoadPriority.h> 32#include <wtf/Deque.h> 33#include <wtf/HashSet.h> 34#include <wtf/RefCounted.h> 35#include <wtf/text/WTFString.h> 36 37namespace WebKit { 38 39class NetworkResourceLoader; 40 41typedef Deque<RefPtr<NetworkResourceLoader>> LoaderQueue; 42typedef uint64_t ResourceLoadIdentifier; 43 44class HostRecord : public RefCounted<HostRecord> { 45public: 46 static PassRefPtr<HostRecord> create(const String& name, int maxRequestsInFlight) 47 { 48 return adoptRef(new HostRecord(name, maxRequestsInFlight)); 49 } 50 51 ~HostRecord(); 52 53 const String& name() const { return m_name; } 54 55 void scheduleResourceLoader(PassRefPtr<NetworkResourceLoader>); 56 void addLoaderInProgress(NetworkResourceLoader*); 57 void removeLoader(NetworkResourceLoader*); 58 bool hasRequests() const; 59 void servePendingRequests(WebCore::ResourceLoadPriority); 60 61 uint64_t pendingRequestCount() const; 62 uint64_t activeLoadCount() const; 63 64private: 65 HostRecord(const String& name, int maxRequestsInFlight); 66 67 void servePendingRequestsForQueue(LoaderQueue&, WebCore::ResourceLoadPriority); 68 bool limitsRequests(WebCore::ResourceLoadPriority, NetworkResourceLoader*) const; 69 70 LoaderQueue m_loadersPending[WebCore::ResourceLoadPriorityHighest + 1]; 71 LoaderQueue m_syncLoadersPending; 72 73 typedef HashSet<RefPtr<NetworkResourceLoader>> NetworkResourceLoaderSet; 74 NetworkResourceLoaderSet m_loadersInProgress; 75 76 const String m_name; 77 int m_maxRequestsInFlight; 78}; 79 80} // namespace WebKit 81 82#endif // ENABLE(NETWORK_PROCESS) 83 84#endif // #ifndef HostRecord_h 85