1 files changed, 130 insertions, 0 deletions
diff --git a/Source/WebCore/Modules/indexeddb/shared/IDBTransactionInfo.h b/Source/WebCore/Modules/indexeddb/shared/IDBTransactionInfo.h
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+++ b/Source/WebCore/Modules/indexeddb/shared/IDBTransactionInfo.h
@@ -0,0 +1,130 @@
+/*
+ * 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.
+ */
+
+#pragma once
+
+#if ENABLE(INDEXED_DATABASE)
+
+#include "IDBDatabaseInfo.h"
+#include "IDBResourceIdentifier.h"
+#include "IDBTransactionMode.h"
+#include "IndexedDB.h"
+#include <wtf/Vector.h>
+
+namespace WebCore {
+
+namespace IDBClient {
+class IDBConnectionProxy;
+}
+
+namespace IDBServer {
+class IDBConnectionToClient;
+}
+
+class IDBTransactionInfo {
+public:
+    static IDBTransactionInfo clientTransaction(const IDBClient::IDBConnectionProxy&, const Vector<String>& objectStores, IDBTransactionMode);
+    static IDBTransactionInfo versionChange(const IDBServer::IDBConnectionToClient&, const IDBDatabaseInfo& originalDatabaseInfo, uint64_t newVersion);
+
+    IDBTransactionInfo(const IDBTransactionInfo&);
+
+    enum IsolatedCopyTag { IsolatedCopy };
+    IDBTransactionInfo(const IDBTransactionInfo&, IsolatedCopyTag);
+
+    IDBTransactionInfo isolatedCopy() const;
+
+    const IDBResourceIdentifier& identifier() const { return m_identifier; }
+
+    IDBTransactionMode mode() const { return m_mode; }
+    uint64_t newVersion() const { return m_newVersion; }
+
+    const Vector<String>& objectStores() const { return m_objectStores; }
+
+    IDBDatabaseInfo* originalDatabaseInfo() const { return m_originalDatabaseInfo.get(); }
+
+    WEBCORE_EXPORT IDBTransactionInfo();
+    template<class Encoder> void encode(Encoder&) const;
+    template<class Decoder> static bool decode(Decoder&, IDBTransactionInfo&);
+
+#if !LOG_DISABLED
+    String loggingString() const;
+#endif
+
+private:
+    IDBTransactionInfo(const IDBResourceIdentifier&);
+
+    static void isolatedCopy(const IDBTransactionInfo& source, IDBTransactionInfo& destination);
+
+    IDBResourceIdentifier m_identifier;
+
+    IDBTransactionMode m_mode { IDBTransactionMode::Readonly };
+    uint64_t m_newVersion { 0 };
+    Vector<String> m_objectStores;
+    std::unique_ptr<IDBDatabaseInfo> m_originalDatabaseInfo;
+};
+
+template<class Encoder>
+void IDBTransactionInfo::encode(Encoder& encoder) const
+{
+    encoder << m_identifier << m_newVersion << m_objectStores;
+    encoder.encodeEnum(m_mode);
+
+    encoder << !!m_originalDatabaseInfo;
+    if (m_originalDatabaseInfo)
+        encoder << *m_originalDatabaseInfo;
+}
+
+template<class Decoder>
+bool IDBTransactionInfo::decode(Decoder& decoder, IDBTransactionInfo& info)
+{
+    if (!decoder.decode(info.m_identifier))
+        return false;
+
+    if (!decoder.decode(info.m_newVersion))
+        return false;
+
+    if (!decoder.decode(info.m_objectStores))
+        return false;
+
+    if (!decoder.decodeEnum(info.m_mode))
+        return false;
+
+    bool hasObject;
+    if (!decoder.decode(hasObject))
+        return false;
+
+    if (hasObject) {
+        std::unique_ptr<IDBDatabaseInfo> object = std::make_unique<IDBDatabaseInfo>();
+        if (!decoder.decode(*object))
+            return false;
+        info.m_originalDatabaseInfo = WTFMove(object);
+    }
+
+    return true;
+}
+
+} // namespace WebCore
+
+#endif // ENABLE(INDEXED_DATABASE)