2 * Copyright (C) 2010 Apple Inc. All rights reserved.
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
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.
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
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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
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29 #include "APIObject.h"
30 #include "DataReference.h"
31 #include <wtf/Forward.h>
32 #include <wtf/Vector.h>
36 // WebData - A data buffer type suitable for vending to an API.
38 class WebData : public APIObject {
40 static const Type APIType = TypeData;
42 typedef void (*FreeDataFunction)(unsigned char*, const void* context);
44 static PassRefPtr<WebData> createWithoutCopying(const unsigned char* bytes, size_t size, FreeDataFunction freeDataFunction, const void* context)
46 return adoptRef(new WebData(bytes, size, freeDataFunction, context));
49 static PassRefPtr<WebData> create(const unsigned char* bytes, size_t size)
51 unsigned char *copiedBytes = 0;
54 copiedBytes = static_cast<unsigned char*>(fastMalloc(size));
55 memcpy(copiedBytes, bytes, size);
58 return createWithoutCopying(copiedBytes, size, fastFreeBytes, 0);
61 static PassRefPtr<WebData> create(const Vector<unsigned char>& buffer)
63 return create(buffer.data(), buffer.size());
68 m_freeDataFunction(const_cast<unsigned char*>(m_bytes), m_context);
71 const unsigned char* bytes() const { return m_bytes; }
72 size_t size() const { return m_size; }
74 CoreIPC::DataReference dataReference() const { return CoreIPC::DataReference(m_bytes, m_size); }
77 WebData(const unsigned char* bytes, size_t size, FreeDataFunction freeDataFunction, const void* context)
80 , m_freeDataFunction(freeDataFunction)
85 static void fastFreeBytes(unsigned char* bytes, const void*)
88 fastFree(static_cast<void*>(bytes));
91 virtual Type type() const { return APIType; }
93 const unsigned char* m_bytes;
96 FreeDataFunction m_freeDataFunction;
97 const void* m_context;
100 } // namespace WebKit