1/*
2 * Copyright (C) 2010 Apple Inc. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 * 1. Redistributions of source code must retain the above copyright
8 *    notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 *    notice, this list of conditions and the following disclaimer in the
11 *    documentation and/or other materials provided with the distribution.
12 *
13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
14 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
15 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
17 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
18 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
19 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
20 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
21 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
22 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
23 * THE POSSIBILITY OF SUCH DAMAGE.
24 */
25
26#include "config.h"
27#include "DataReference.h"
28
29#include "ArgumentDecoder.h"
30#include "ArgumentEncoder.h"
31
32namespace IPC {
33
34void DataReference::encode(ArgumentEncoder& encoder) const
35{
36    encoder.encodeVariableLengthByteArray(*this);
37}
38
39bool DataReference::decode(ArgumentDecoder& decoder, DataReference& dataReference)
40{
41    return decoder.decodeVariableLengthByteArray(dataReference);
42}
43
44void SharedBufferDataReference::encode(ArgumentEncoder& encoder) const
45{
46    uint64_t bufferSize = static_cast<uint64_t>(m_buffer->size());
47    encoder.reserve(bufferSize + sizeof(uint64_t));
48    encoder << bufferSize;
49
50    const char* partialData;
51    unsigned position = 0;
52    while (position < bufferSize) {
53        unsigned bytesToWrite = m_buffer->getSomeData(partialData, position);
54        encoder.encodeFixedLengthData(reinterpret_cast<const uint8_t*>(partialData), bytesToWrite, 1);
55        position += bytesToWrite;
56    }
57}
58
59} // namespace IPC
60