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/*
* Copyright (C) 2013 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.
*/
#import "config.h"
#import "DiskCacheMonitor.h"
#import "NetworkConnectionToWebProcess.h"
#import "NetworkProcessConnectionMessages.h"
#import "NetworkResourceLoader.h"
#import "WebCoreArgumentCoders.h"
#ifdef __has_include
#if __has_include(<CFNetwork/CFURLCachePriv.h>)
#include <CFNetwork/CFURLCachePriv.h>
#endif
#endif
#if __MAC_OS_X_VERSION_MIN_REQUIRED >= 1090
typedef void (^CFCachedURLResponseCallBackBlock)(CFCachedURLResponseRef);
extern "C" void _CFCachedURLResponseSetBecameFileBackedCallBackBlock(CFCachedURLResponseRef, CFCachedURLResponseCallBackBlock, dispatch_queue_t);
using namespace WebCore;
namespace WebKit {
// The maximum number of seconds we'll try to wait for a resource to be disk cached before we forget the request.
static const double diskCacheMonitorTimeout = 20;
void DiskCacheMonitor::monitorFileBackingStoreCreation(CFCachedURLResponseRef cachedResponse, NetworkResourceLoader* loader)
{
if (!cachedResponse)
return;
ASSERT(loader);
new DiskCacheMonitor(cachedResponse, loader); // Balanced by adoptPtr in the blocks setup in the constructor, one of which is guaranteed to run.
}
DiskCacheMonitor::DiskCacheMonitor(CFCachedURLResponseRef cachedResponse, NetworkResourceLoader* loader)
: m_connectionToWebProcess(loader->connectionToWebProcess())
, m_resourceRequest(loader->request())
{
ASSERT(isMainThread());
// Set up a delayed callback to cancel this monitor if the resource hasn't been cached yet.
__block DiskCacheMonitor* rawMonitor = this;
dispatch_after(dispatch_time(DISPATCH_TIME_NOW, NSEC_PER_SEC * diskCacheMonitorTimeout), dispatch_get_main_queue(), ^{
adoptPtr(rawMonitor); // Balanced by `new DiskCacheMonitor` in monitorFileBackingStoreCreation.
rawMonitor = 0;
});
// Set up the disk caching callback to create the ShareableResource and send it to the WebProcess.
CFCachedURLResponseCallBackBlock block = ^(CFCachedURLResponseRef cachedResponse)
{
// If the monitor isn't there then it timed out before this resource was cached to disk.
if (!rawMonitor)
return;
OwnPtr<DiskCacheMonitor> monitor = adoptPtr(rawMonitor); // Balanced by `new DiskCacheMonitor` in monitorFileBackingStoreCreation.
rawMonitor = 0;
ShareableResource::Handle handle;
NetworkResourceLoader::tryGetShareableHandleFromCFURLCachedResponse(handle, cachedResponse);
if (handle.isNull())
return;
monitor->send(Messages::NetworkProcessConnection::DidCacheResource(monitor->resourceRequest(), handle));
};
_CFCachedURLResponseSetBecameFileBackedCallBackBlock(cachedResponse, block, dispatch_get_main_queue());
}
CoreIPC::Connection* DiskCacheMonitor::messageSenderConnection()
{
return m_connectionToWebProcess->connection();
}
uint64_t DiskCacheMonitor::messageSenderDestinationID()
{
return 0;
}
} // namespace WebKit
#endif // #if __MAC_OS_X_VERSION_MIN_REQUIRED >= 1090
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