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/*
* Copyright (C) 2010 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 WebData_h
#define WebData_h
#include "APIObject.h"
#include <wtf/Forward.h>
#include <wtf/Vector.h>
namespace WebKit {
// WebData - A data buffer type suitable for vending to an API.
class WebData : public APIObject {
public:
static const Type APIType = TypeData;
typedef void (*FreeDataFunction)(unsigned char*, const void* context);
static PassRefPtr<WebData> createWithoutCopying(const unsigned char* bytes, size_t size, FreeDataFunction freeDataFunction, const void* context)
{
return adoptRef(new WebData(bytes, size, freeDataFunction, context));
}
static PassRefPtr<WebData> create(const unsigned char* bytes, size_t size)
{
unsigned char *copiedBytes = 0;
if (size) {
copiedBytes = static_cast<unsigned char*>(fastMalloc(size));
memcpy(copiedBytes, bytes, size);
}
return createWithoutCopying(copiedBytes, size, fastFreeBytes, 0);
}
static PassRefPtr<WebData> create(const Vector<unsigned char>& buffer)
{
return create(buffer.data(), buffer.size());
}
~WebData()
{
m_freeDataFunction(const_cast<unsigned char*>(m_bytes), m_context);
}
const unsigned char* bytes() const { return m_bytes; }
size_t size() const { return m_size; }
private:
WebData(const unsigned char* bytes, size_t size, FreeDataFunction freeDataFunction, const void* context)
: m_bytes(bytes)
, m_size(size)
, m_freeDataFunction(freeDataFunction)
, m_context(context)
{
}
static void fastFreeBytes(unsigned char* bytes, const void*)
{
if (bytes)
fastFree(static_cast<void*>(bytes));
}
virtual Type type() const { return APIType; }
const unsigned char* m_bytes;
size_t m_size;
FreeDataFunction m_freeDataFunction;
const void* m_context;
};
} // namespace WebKit
#endif // WebData_h
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