1/*
2 * Copyright (C) 2006 Apple Computer, 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 COMPUTER, INC. ``AS IS'' AND ANY
14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24 */
25#ifndef ResourceResponse_h
26#define ResourceResponse_h
27
28#include "ResourceResponseBase.h"
29#include <wtf/RetainPtr.h>
30
31typedef struct _CFURLResponse* CFURLResponseRef;
32
33namespace WebCore {
34
35class ResourceResponse : public ResourceResponseBase {
36public:
37    ResourceResponse()
38        : m_isUpToDate(true)
39    {
40    }
41
42    ResourceResponse(CFURLResponseRef cfResponse)
43        : m_cfResponse(cfResponse)
44        , m_isUpToDate(false)
45    {
46        m_isNull = !cfResponse;
47    }
48
49    ResourceResponse(const KURL& url, const String& mimeType, long long expectedLength, const String& textEncodingName, const String& filename)
50        : ResourceResponseBase(url, mimeType, expectedLength, textEncodingName, filename)
51        , m_isUpToDate(true)
52    {
53    }
54
55    unsigned memoryUsage() const
56    {
57        // FIXME: Find some programmatic lighweight way to calculate ResourceResponse and associated classes.
58        // This is a rough estimate of resource overhead based on stats collected from the stress test.
59        return 3072;
60        /*  1280 * 2 +                // average size of ResourceResponse. Doubled to account for the WebCore copy and the CF copy.
61                                      // Mostly due to the size of the hash maps, the Header Map strings and the URL.
62            256 * 2                   // Overhead from ResourceRequest, doubled to account for WebCore copy and CF copy.
63                                      // Mostly due to the URL and Header Map.
64         */
65    }
66
67    CFURLResponseRef cfURLResponse() const;
68
69private:
70    friend class ResourceResponseBase;
71
72    void platformLazyInit();
73    static bool platformCompare(const ResourceResponse& a, const ResourceResponse& b);
74
75    RetainPtr<CFURLResponseRef> m_cfResponse;
76    bool m_isUpToDate;
77};
78
79} // namespace WebCore
80
81#endif // ResourceResponse_h
82