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/*
* Copyright (C) 2022 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.
*/
#pragma once
#include "Connection.h"
#include <WebCore/DOMCacheEngine.h>
#include <wtf/WeakPtr.h>
namespace WebCore {
struct ClientOrigin;
}
namespace WebKit {
class CacheStorageCache;
class CacheStorageRegistry;
class CacheStorageStore;
struct CacheStorageRecord;
struct CacheStorageRecordInformation;
class CacheStorageManager : public CanMakeWeakPtr<CacheStorageManager> {
WTF_MAKE_FAST_ALLOCATED;
public:
static String cacheStorageOriginDirectory(const String& rootDirectory, const WebCore::ClientOrigin&);
static void copySaltFileToOriginDirectory(const String& rootDirectory, const String& originDirectory);
static HashSet<WebCore::ClientOrigin> originsOfCacheStorageData(const String& rootDirectory);
static uint64_t cacheStorageSize(const String& originDirectory);
static bool hasCacheList(const String& cacheListDirectory);
using QuotaCheckFunction = Function<void(uint64_t spaceRequested, CompletionHandler<void(bool)>&&)>;
CacheStorageManager(const String& path, CacheStorageRegistry&, const std::optional<WebCore::ClientOrigin>&, QuotaCheckFunction&&, Ref<WorkQueue>&&);
~CacheStorageManager();
void openCache(const String& name, WebCore::DOMCacheEngine::CacheIdentifierCallback&&);
void removeCache(WebCore::DOMCacheIdentifier, WebCore::DOMCacheEngine::RemoveCacheIdentifierCallback&&);
void allCaches(uint64_t updateCounter, WebCore::DOMCacheEngine::CacheInfosCallback&&);
void reference(IPC::Connection::UniqueID, WebCore::DOMCacheIdentifier);
void dereference(IPC::Connection::UniqueID, WebCore::DOMCacheIdentifier);
void connectionClosed(IPC::Connection::UniqueID);
bool hasDataInMemory();
bool isActive();
String representationString();
FileSystem::Salt salt() const { return m_salt; }
void requestSpace(uint64_t size, CompletionHandler<void(bool)>&&);
void sizeIncreased(uint64_t amount);
void sizeDecreased(uint64_t amount);
private:
void makeDirty();
bool initializeCaches();
void removeUnusedCache(WebCore::DOMCacheIdentifier);
void initializeCacheSize(CacheStorageCache&);
void finishInitializingSize();
void requestSpaceAfterInitializingSize(uint64_t size, CompletionHandler<void(bool)>&&);
bool m_isInitialized { false };
uint64_t m_updateCounter;
std::optional<uint64_t> m_size;
std::pair<uint64_t, size_t> m_pendingSize;
String m_path;
FileSystem::Salt m_salt;
CacheStorageRegistry& m_registry;
QuotaCheckFunction m_quotaCheckFunction;
Vector<std::unique_ptr<CacheStorageCache>> m_caches;
HashMap<WebCore::DOMCacheIdentifier, std::unique_ptr<CacheStorageCache>> m_removedCaches;
HashMap<WebCore::DOMCacheIdentifier, Vector<IPC::Connection::UniqueID>> m_cacheRefConnections;
Ref<WorkQueue> m_queue;
Deque<std::pair<uint64_t, CompletionHandler<void(bool)>>> m_pendingSpaceRequests;
};
} // namespace WebKit
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