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/*
* Copyright (C) 2012 Apple Inc. All rights reserved.
*
* 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. AND ITS CONTRIBUTORS ``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 ITS 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.
*/
#include "config.h"
#include "HostRecord.h"
#include "Logging.h"
#include "NetworkConnectionToWebProcess.h"
#include "NetworkProcess.h"
#include "NetworkResourceLoadParameters.h"
#include "NetworkResourceLoadScheduler.h"
#include "NetworkResourceLoader.h"
#if ENABLE(NETWORK_PROCESS)
using namespace WebCore;
namespace WebKit {
HostRecord::HostRecord(const String& name, int maxRequestsInFlight)
: m_name(name)
, m_maxRequestsInFlight(maxRequestsInFlight)
{
}
HostRecord::~HostRecord()
{
#ifndef NDEBUG
ASSERT(m_resourceIdentifiersLoading.isEmpty());
for (unsigned p = 0; p <= ResourceLoadPriorityHighest; p++)
ASSERT(m_loadersPending[p].isEmpty());
#endif
}
void HostRecord::schedule(PassRefPtr<NetworkResourceLoader> loader)
{
m_loadersPending[loader->priority()].append(loader);
}
void HostRecord::addLoadInProgress(ResourceLoadIdentifier identifier)
{
m_resourceIdentifiersLoading.add(identifier);
}
void HostRecord::remove(ResourceLoadIdentifier identifier)
{
// FIXME (NetworkProcess): Due to IPC race conditions, it's possible this HostRecord will be asked to remove the same identifer twice.
// It would be nice to know the identifier has already been removed and treat it as a no-op.
if (m_resourceIdentifiersLoading.contains(identifier)) {
m_resourceIdentifiersLoading.remove(identifier);
return;
}
for (int priority = ResourceLoadPriorityHighest; priority >= ResourceLoadPriorityLowest; --priority) {
LoaderQueue::iterator end = m_loadersPending[priority].end();
for (LoaderQueue::iterator it = m_loadersPending[priority].begin(); it != end; ++it) {
if (it->get()->identifier() == identifier) {
m_loadersPending[priority].remove(it);
return;
}
}
}
}
bool HostRecord::hasRequests() const
{
if (!m_resourceIdentifiersLoading.isEmpty())
return true;
for (unsigned p = 0; p <= ResourceLoadPriorityHighest; p++) {
if (!m_loadersPending[p].isEmpty())
return true;
}
return false;
}
bool HostRecord::limitRequests(ResourceLoadPriority priority, bool serialLoadingEnabled) const
{
if (priority == ResourceLoadPriorityVeryLow && !m_resourceIdentifiersLoading.isEmpty())
return true;
return m_resourceIdentifiersLoading.size() >= (serialLoadingEnabled ? 1 : m_maxRequestsInFlight);
}
} // namespace WebKit
#endif // ENABLE(NETWORK_PROCESS)
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