| /* |
| * 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 SubresourceInfo; |
| class SubresourcesEntry; |
| |
| class SpeculativeLoadManager { |
| WTF_MAKE_FAST_ALLOCATED; |
| public: |
| explicit SpeculativeLoadManager(Cache&, Storage&); |
| ~SpeculativeLoadManager(); |
| |
| void registerLoad(const GlobalFrameID&, const WebCore::ResourceRequest&, const Key& resourceKey); |
| |
| typedef Function<void (std::unique_ptr<Entry>)> RetrieveCompletionHandler; |
| |
| bool canRetrieve(const Key& storageKey, const WebCore::ResourceRequest&, const GlobalFrameID&) const; |
| void retrieve(const Key& storageKey, RetrieveCompletionHandler&&); |
| |
| private: |
| class PreloadedEntry; |
| |
| void addPreloadedEntry(std::unique_ptr<Entry>, const GlobalFrameID&, Optional<WebCore::ResourceRequest>&& revalidationRequest = WTF::nullopt); |
| void preloadEntry(const Key&, const SubresourceInfo&, const GlobalFrameID&); |
| void retrieveEntryFromStorage(const SubresourceInfo&, RetrieveCompletionHandler&&); |
| void revalidateSubresource(const SubresourceInfo&, std::unique_ptr<Entry>, const GlobalFrameID&); |
| bool satisfyPendingRequests(const Key&, Entry*); |
| void retrieveSubresourcesEntry(const Key& storageKey, WTF::Function<void (std::unique_ptr<SubresourcesEntry>)>&&); |
| void startSpeculativeRevalidation(const GlobalFrameID&, SubresourcesEntry&); |
| |
| static bool canUsePreloadedEntry(const PreloadedEntry&, const WebCore::ResourceRequest& actualRequest); |
| static bool canUsePendingPreload(const SpeculativeLoad&, const WebCore::ResourceRequest& actualRequest); |
| |
| Cache& m_cache; |
| 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; |
| |
| 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 |