1 files changed, 78 insertions, 0 deletions
diff --git a/Source/WebCore/Modules/indexeddb/shared/IDBIterateCursorData.h b/Source/WebCore/Modules/indexeddb/shared/IDBIterateCursorData.h
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index 000000000..609f74876
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+++ b/Source/WebCore/Modules/indexeddb/shared/IDBIterateCursorData.h
@@ -0,0 +1,78 @@
+/*
+ * Copyright (C) 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 "IDBKeyData.h"
+
+namespace WebCore {
+
+struct IDBIterateCursorData {
+    IDBKeyData keyData;
+    IDBKeyData primaryKeyData;
+    unsigned count;
+
+    IDBIterateCursorData isolatedCopy() const;
+
+#if !LOG_DISABLED
+    String loggingString() const;
+#endif
+
+    template<class Encoder> void encode(Encoder&) const;
+    template<class Decoder> static bool decode(Decoder&, IDBIterateCursorData&);
+};
+
+template<class Encoder>
+void IDBIterateCursorData::encode(Encoder& encoder) const
+{
+    encoder << keyData << primaryKeyData << static_cast<uint64_t>(count);
+}
+
+template<class Decoder>
+bool IDBIterateCursorData::decode(Decoder& decoder, IDBIterateCursorData& iteratorCursorData)
+{
+    if (!decoder.decode(iteratorCursorData.keyData))
+        return false;
+
+    if (!decoder.decode(iteratorCursorData.primaryKeyData))
+        return false;
+
+    uint64_t count;
+    if (!decoder.decode(count))
+        return false;
+
+    if (count > std::numeric_limits<unsigned>::max())
+        return false;
+
+    iteratorCursorData.count = static_cast<unsigned>(count);
+
+    return true;
+}
+
+} // namespace WebCore
+
+#endif // ENABLE(INDEXED_DATABASE)