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Viewing changes to Source/WebKit2/NetworkProcess/mac/NetworkResourceLoadSchedulerMac.mm

  • Committer: Package Import Robot
  • Author(s): Jonathan Riddell
  • Date: 2013-02-18 14:24:18 UTC
  • Revision ID: package-import@ubuntu.com-20130218142418-eon0jmjg3nj438uy
Tags: upstream-2.3
Import upstream version 2.3

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Source/WebKit2/NetworkProcess/mac/NetworkResourceLoadSchedulerMac.mm
 
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/*
 
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 * Copyright (C) 2012 Apple Inc. All rights reserved.
 
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 *
 
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 * Redistribution and use in source and binary forms, with or without
 
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 * modification, are permitted provided that the following conditions
 
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 * are met:
 
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 * 1. Redistributions of source code must retain the above copyright
 
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 *    notice, this list of conditions and the following disclaimer.
 
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 * 2. Redistributions in binary form must reproduce the above copyright
 
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 *    notice, this list of conditions and the following disclaimer in the
 
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 *    documentation and/or other materials provided with the distribution.
 
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 *
 
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 * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
 
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 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
 
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 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 
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 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
 
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 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 
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 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 
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 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 
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 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 
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 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 
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 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
 
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 * THE POSSIBILITY OF SUCH DAMAGE.
 
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 */
 
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#import "config.h"
 
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#import "NetworkResourceLoadScheduler.h"
 
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#import <WebCore/ResourceRequest.h>
 
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#import <WebCore/ResourceRequestCFNet.h>
 
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#import <WebCore/WebCoreSystemInterface.h>
 
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#import <WebKitSystemInterface.h>
 
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#if ENABLE(NETWORK_PROCESS)
 
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using namespace WebCore;
 
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namespace WebKit {
 
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unsigned NetworkResourceLoadScheduler::platformInitializeMaximumHTTPConnectionCountPerHost()
 
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{
 
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    wkInitializeMaximumHTTPConnectionCountPerHost = WKInitializeMaximumHTTPConnectionCountPerHost;
 
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    wkSetHTTPPipeliningMaximumPriority = WKSetHTTPPipeliningMaximumPriority;
 
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    wkSetHTTPPipeliningMinimumFastLanePriority = WKSetHTTPPipeliningMinimumFastLanePriority;
 
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    static const unsigned preferredConnectionCount = 6;
 
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    static const unsigned unlimitedConnectionCount = 10000;
 
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    // Always set the connection count per host, even when pipelining.
 
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    unsigned maximumHTTPConnectionCountPerHost = wkInitializeMaximumHTTPConnectionCountPerHost(preferredConnectionCount);
 
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    Boolean keyExistsAndHasValidFormat = false;
 
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    Boolean prefValue = CFPreferencesGetAppBooleanValue(CFSTR("WebKitEnableHTTPPipelining"), kCFPreferencesCurrentApplication, &keyExistsAndHasValidFormat);
 
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    if (keyExistsAndHasValidFormat)
 
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        ResourceRequest::setHTTPPipeliningEnabled(prefValue);
 
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    if (ResourceRequest::httpPipeliningEnabled()) {
 
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        wkSetHTTPPipeliningMaximumPriority(toHTTPPipeliningPriority(ResourceLoadPriorityHighest));
 
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        wkSetHTTPPipeliningMinimumFastLanePriority(toHTTPPipeliningPriority(ResourceLoadPriorityMedium));
 
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        // When pipelining do not rate-limit requests sent from WebCore since CFNetwork handles that.
 
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        return unlimitedConnectionCount;
 
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    }
 
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    return maximumHTTPConnectionCountPerHost;
 
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}
 
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} // namespace WebKit
 
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#endif // ENABLE(NETWORK_PROCESS)