webkitgtk-2.16.5HEADwebkitgtk-2.16.5master

1 files changed, 97 insertions, 0 deletions

diff --git a/Source/WebCore/Modules/indexeddb/server/SQLiteIDBTransaction.h b/Source/WebCore/Modules/indexeddb/server/SQLiteIDBTransaction.h
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+++ b/Source/WebCore/Modules/indexeddb/server/SQLiteIDBTransaction.h
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+/*
+ * Copyright (C) 2013, 2016 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
+
+#if ENABLE(INDEXED_DATABASE)
+
+#include "IDBError.h"
+#include "IDBResourceIdentifier.h"
+#include "IDBTransactionInfo.h"
+#include "IndexedDB.h"
+#include <wtf/HashMap.h>
+#include <wtf/HashSet.h>
+#include <wtf/Noncopyable.h>
+
+namespace WebCore {
+
+class IDBCursorInfo;
+class SQLiteDatabase;
+class SQLiteTransaction;
+struct IDBKeyRangeData;
+
+namespace IDBServer {
+
+class SQLiteIDBBackingStore;
+class SQLiteIDBCursor;
+
+class SQLiteIDBTransaction {
+    WTF_MAKE_NONCOPYABLE(SQLiteIDBTransaction);
+public:
+    SQLiteIDBTransaction(SQLiteIDBBackingStore&, const IDBTransactionInfo&);
+    ~SQLiteIDBTransaction();
+
+    const IDBResourceIdentifier& transactionIdentifier() const { return m_info.identifier(); }
+
+    IDBError begin(SQLiteDatabase&);
+    IDBError commit();
+    IDBError abort();
+
+    std::unique_ptr<SQLiteIDBCursor> maybeOpenBackingStoreCursor(uint64_t objectStoreID, uint64_t indexID, const IDBKeyRangeData&);
+    SQLiteIDBCursor* maybeOpenCursor(const IDBCursorInfo&);
+
+    void closeCursor(SQLiteIDBCursor&);
+    void notifyCursorsOfChanges(int64_t objectStoreID);
+
+    IDBTransactionMode mode() const { return m_info.mode(); }
+    bool inProgress() const;
+
+    SQLiteTransaction* sqliteTransaction() const { return m_sqliteTransaction.get(); }
+    SQLiteIDBBackingStore& backingStore() { return m_backingStore; }
+
+    void addBlobFile(const String& temporaryPath, const String& storedFilename);
+    void addRemovedBlobFile(const String& removedFilename);
+
+private:
+    void clearCursors();
+    void reset();
+
+    void moveBlobFilesIfNecessary();
+    void deleteBlobFilesIfNecessary();
+
+    IDBTransactionInfo m_info;
+
+    SQLiteIDBBackingStore& m_backingStore;
+    std::unique_ptr<SQLiteTransaction> m_sqliteTransaction;
+    HashMap<IDBResourceIdentifier, std::unique_ptr<SQLiteIDBCursor>> m_cursors;
+    HashSet<SQLiteIDBCursor*> m_backingStoreCursors;
+    Vector<std::pair<String, String>> m_blobTemporaryAndStoredFilenames;
+    HashSet<String> m_blobRemovedFilenames;
+};
+
+} // namespace IDBServer
+} // namespace WebCore
+
+#endif // ENABLE(INDEXED_DATABASE)