auto import from //depot/cupcake/@135843

1 files changed, 96 insertions, 0 deletions

diff --git a/WebCore/loader/appcache/ApplicationCacheStorage.h b/WebCore/loader/appcache/ApplicationCacheStorage.h
new file mode 100644
index 0000000..6bd9ba1
--- /dev/null
+++ b/WebCore/loader/appcache/ApplicationCacheStorage.h
@@ -0,0 +1,96 @@
+/*
+ * Copyright (C) 2008 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. ``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
+ * 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 ApplicationCacheStorage_h
+#define ApplicationCacheStorage_h
+
+#if ENABLE(OFFLINE_WEB_APPLICATIONS)
+
+#include "PlatformString.h"
+#include "SQLiteDatabase.h"
+#include "StringHash.h"
+
+#include <wtf/HashCountedSet.h>
+
+namespace WebCore {
+
+class ApplicationCache;
+class ApplicationCacheGroup;
+class ApplicationCacheResource;
+class KURL;
+    
+class ApplicationCacheStorage {
+public:
+    void setCacheDirectory(const String&);
+    
+    ApplicationCacheGroup* cacheGroupForURL(const KURL&);
+
+    ApplicationCacheGroup* findOrCreateCacheGroup(const KURL& manifestURL);
+    void cacheGroupDestroyed(ApplicationCacheGroup*);
+        
+    bool storeNewestCache(ApplicationCacheGroup*);
+    void store(ApplicationCacheResource*, ApplicationCache*);
+
+    void remove(ApplicationCache*);
+    
+    void empty();
+    
+    static bool storeCopyOfCache(const String& cacheDirectory, ApplicationCache*);
+private:
+    PassRefPtr<ApplicationCache> loadCache(unsigned storageID);
+    ApplicationCacheGroup* loadCacheGroup(const KURL& manifestURL);
+    
+    bool store(ApplicationCacheGroup*);
+    bool store(ApplicationCache*);
+    bool store(ApplicationCacheResource*, unsigned cacheStorageID);
+
+    void loadManifestHostHashes();
+    
+    void verifySchemaVersion();
+    
+    void openDatabase(bool createIfDoesNotExist);
+    
+    bool executeStatement(SQLiteStatement&);
+    bool executeSQLCommand(const String&);
+    
+    String m_cacheDirectory;
+
+    SQLiteDatabase m_database;
+    
+    // In order to quickly determinate if a given resource exists in an application cache,
+    // we keep a hash set of the hosts of the manifest URLs of all cache groups.
+    HashCountedSet<unsigned, AlreadyHashed> m_cacheHostSet;
+    
+    typedef HashMap<String, ApplicationCacheGroup*> CacheGroupMap;
+    CacheGroupMap m_cachesInMemory;
+};
+ 
+ApplicationCacheStorage& cacheStorage();
+    
+} // namespace WebCore
+
+#endif // ENABLE(OFFLINE_WEB_APPLICATIONS)
+
+#endif // ApplicationCacheStorage_h