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/*
* Copyright (C) 2011 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 "EncoderAdapter.h"
#include "DataReference.h"
#include "WebCoreArgumentCoders.h"
#include <wtf/text/WTFString.h>
namespace WebKit {
EncoderAdapter::EncoderAdapter()
: m_encoder(CoreIPC::ArgumentEncoder::create())
{
// Keep format compatibility by decoding an unused uint64_t value
// that used to be encoded by the argument encoder.
*m_encoder << static_cast<uint64_t>(0);
}
CoreIPC::DataReference EncoderAdapter::dataReference() const
{
return CoreIPC::DataReference(m_encoder->buffer(), m_encoder->bufferSize());
}
void EncoderAdapter::encodeBytes(const uint8_t* bytes, size_t size)
{
*m_encoder << CoreIPC::DataReference(bytes, size);
}
void EncoderAdapter::encodeBool(bool value)
{
*m_encoder << value;
}
void EncoderAdapter::encodeUInt16(uint16_t value)
{
*m_encoder << value;
}
void EncoderAdapter::encodeUInt32(uint32_t value)
{
*m_encoder << value;
}
void EncoderAdapter::encodeUInt64(uint64_t value)
{
*m_encoder << value;
}
void EncoderAdapter::encodeInt32(int32_t value)
{
*m_encoder << value;
}
void EncoderAdapter::encodeInt64(int64_t value)
{
*m_encoder << value;
}
void EncoderAdapter::encodeFloat(float value)
{
*m_encoder << value;
}
void EncoderAdapter::encodeDouble(double value)
{
*m_encoder << value;
}
void EncoderAdapter::encodeString(const String& value)
{
// This mimics the CoreIPC binary encoding of Strings prior to r88886.
// Whenever the CoreIPC binary encoding changes, we'll have to "undo" the changes here.
// FIXME: We shouldn't use the CoreIPC binary encoding format for history,
// and we should come up with a migration strategy so we can actually bump the version number
// without breaking encoding/decoding of the history tree.
// Special case the null string.
if (value.isNull()) {
*m_encoder << std::numeric_limits<uint32_t>::max();
return;
}
uint32_t length = value.length();
*m_encoder << length;
uint64_t lengthInBytes = length * sizeof(UChar);
*m_encoder << lengthInBytes;
m_encoder->encodeFixedLengthData(reinterpret_cast<const uint8_t*>(value.characters()), length * sizeof(UChar), __alignof(UChar));
}
}
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