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/*
* Copyright (C) 2014 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.
*/
#ifndef BlobDataFileReference_h
#define BlobDataFileReference_h
#include <wtf/Markable.h>
#include <wtf/RefCounted.h>
#include <wtf/WallTime.h>
#include <wtf/text/WTFString.h>
namespace WebCore {
class WEBCORE_EXPORT BlobDataFileReference : public RefCounted<BlobDataFileReference> {
public:
static Ref<BlobDataFileReference> create(const String& path, const String& replacementPath = { })
{
return adoptRef(*new BlobDataFileReference(path, replacementPath));
}
virtual ~BlobDataFileReference();
void startTrackingModifications();
const String& path();
unsigned long long size();
std::optional<WallTime> expectedModificationTime();
virtual void prepareForFileAccess();
virtual void revokeFileAccess();
protected:
BlobDataFileReference(const String& path, const String& replacementPath);
private:
#if ENABLE(FILE_REPLACEMENT)
void generateReplacementFile();
#endif
String m_path;
String m_replacementPath;
#if ENABLE(FILE_REPLACEMENT)
bool m_replacementShouldBeGenerated { false };
#endif
unsigned long long m_size { 0 };
Markable<WallTime, WallTime::MarkableTraits> m_expectedModificationTime;
};
}
#endif // BlobDataFileReference_h