1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
|
/*
* Copyright (C) 2015 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 NetworkCacheSpeculativeLoadManager_h
#define NetworkCacheSpeculativeLoadManager_h
#if ENABLE(NETWORK_CACHE_SPECULATIVE_REVALIDATION)
#include "NetworkCache.h"
#include "NetworkCacheStorage.h"
#include <WebCore/ResourceRequest.h>
#include <wtf/HashMap.h>
#include <wtf/Vector.h>
namespace WebKit {
namespace NetworkCache {
class Entry;
class SpeculativeLoad;
class SubresourcesEntry;
class SpeculativeLoadManager {
public:
explicit SpeculativeLoadManager(Storage&);
~SpeculativeLoadManager();
void registerLoad(const GlobalFrameID&, const WebCore::ResourceRequest&, const Key& resourceKey);
typedef std::function<void (std::unique_ptr<Entry>)> RetrieveCompletionHandler;
bool retrieve(const GlobalFrameID&, const Key& storageKey, const RetrieveCompletionHandler&);
private:
enum class WasRevalidated { No, Yes };
void addPreloadedEntry(std::unique_ptr<Entry>, const GlobalFrameID&, WasRevalidated);
void preloadEntry(const Key&, const GlobalFrameID&);
void retrieveEntryFromStorage(const Key&, const RetrieveCompletionHandler&);
void revalidateEntry(std::unique_ptr<Entry>, const GlobalFrameID&);
bool satisfyPendingRequests(const Key&, Entry*);
void retrieveSubresourcesEntry(const Key& storageKey, std::function<void (std::unique_ptr<SubresourcesEntry>)>);
void startSpeculativeRevalidation(const GlobalFrameID&, SubresourcesEntry&);
Storage& m_storage;
class PendingFrameLoad;
HashMap<GlobalFrameID, RefPtr<PendingFrameLoad>> m_pendingFrameLoads;
HashMap<Key, std::unique_ptr<SpeculativeLoad>> m_pendingPreloads;
HashMap<Key, std::unique_ptr<Vector<RetrieveCompletionHandler>>> m_pendingRetrieveRequests;
class PreloadedEntry;
HashMap<Key, std::unique_ptr<PreloadedEntry>> m_preloadedEntries;
class ExpiringEntry;
HashMap<Key, std::unique_ptr<ExpiringEntry>> m_notPreloadedEntries; // For logging.
};
} // namespace NetworkCache
} // namespace WebKit
#endif // ENABLE(NETWORK_CACHE_SPECULATIVE_REVALIDATION)
#endif // NetworkCacheSpeculativeLoadManager_h
|
