webkitgtk-2.16.5HEADwebkitgtk-2.16.5master

1 files changed, 175 insertions, 0 deletions

diff --git a/Source/WebCore/Modules/indexeddb/shared/IDBRequestData.h b/Source/WebCore/Modules/indexeddb/shared/IDBRequestData.h
new file mode 100644
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--- /dev/null
+++ b/Source/WebCore/Modules/indexeddb/shared/IDBRequestData.h
@@ -0,0 +1,175 @@
+/*
+ * 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 "IDBDatabaseIdentifier.h"
+#include "IDBResourceIdentifier.h"
+#include "IndexedDB.h"
+
+namespace WebCore {
+
+class IDBOpenDBRequest;
+class IDBTransaction;
+
+namespace IndexedDB {
+enum class IndexRecordType;
+}
+
+namespace IDBClient {
+class IDBConnectionProxy;
+class TransactionOperation;
+}
+
+class IDBRequestData {
+public:
+    IDBRequestData(const IDBClient::IDBConnectionProxy&, const IDBOpenDBRequest&);
+    explicit IDBRequestData(IDBClient::TransactionOperation&);
+    IDBRequestData(const IDBRequestData&);
+
+    enum IsolatedCopyTag { IsolatedCopy };
+    IDBRequestData(const IDBRequestData&, IsolatedCopyTag);
+    IDBRequestData isolatedCopy() const;
+
+    uint64_t serverConnectionIdentifier() const;
+    IDBResourceIdentifier requestIdentifier() const;
+    IDBResourceIdentifier transactionIdentifier() const;
+    uint64_t objectStoreIdentifier() const;
+    uint64_t indexIdentifier() const;
+    IndexedDB::IndexRecordType indexRecordType() const;
+    IDBResourceIdentifier cursorIdentifier() const;
+
+    const IDBDatabaseIdentifier& databaseIdentifier() const { return m_databaseIdentifier; }
+    uint64_t requestedVersion() const;
+
+    bool isOpenRequest() const { return m_requestType == IndexedDB::RequestType::Open; }
+    bool isDeleteRequest() const { return m_requestType == IndexedDB::RequestType::Delete; }
+
+    IDBRequestData isolatedCopy();
+
+    WEBCORE_EXPORT IDBRequestData();
+
+    template<class Encoder> void encode(Encoder&) const;
+    template<class Decoder> static bool decode(Decoder&, IDBRequestData&);
+
+private:
+    static void isolatedCopy(const IDBRequestData& source, IDBRequestData& destination);
+
+    uint64_t m_serverConnectionIdentifier { 0 };
+    std::unique_ptr<IDBResourceIdentifier> m_requestIdentifier;
+    std::unique_ptr<IDBResourceIdentifier> m_transactionIdentifier;
+    std::unique_ptr<IDBResourceIdentifier> m_cursorIdentifier;
+    uint64_t m_objectStoreIdentifier { 0 };
+    uint64_t m_indexIdentifier { 0 };
+    IndexedDB::IndexRecordType m_indexRecordType;
+
+    IDBDatabaseIdentifier m_databaseIdentifier;
+    uint64_t m_requestedVersion { 0 };
+
+    IndexedDB::RequestType m_requestType { IndexedDB::RequestType::Other };
+};
+
+template<class Encoder>
+void IDBRequestData::encode(Encoder& encoder) const
+{
+    encoder << m_serverConnectionIdentifier << m_objectStoreIdentifier << m_indexIdentifier << m_databaseIdentifier << m_requestedVersion;
+
+    encoder.encodeEnum(m_indexRecordType);
+    encoder.encodeEnum(m_requestType);
+
+    encoder << !!m_requestIdentifier;
+    if (m_requestIdentifier)
+        encoder << *m_requestIdentifier;
+
+    encoder << !!m_transactionIdentifier;
+    if (m_transactionIdentifier)
+        encoder << *m_transactionIdentifier;
+
+    encoder << !!m_cursorIdentifier;
+    if (m_cursorIdentifier)
+        encoder << *m_cursorIdentifier;
+}
+
+template<class Decoder>
+bool IDBRequestData::decode(Decoder& decoder, IDBRequestData& request)
+{
+    if (!decoder.decode(request.m_serverConnectionIdentifier))
+        return false;
+
+    if (!decoder.decode(request.m_objectStoreIdentifier))
+        return false;
+
+    if (!decoder.decode(request.m_indexIdentifier))
+        return false;
+
+    if (!decoder.decode(request.m_databaseIdentifier))
+        return false;
+
+    if (!decoder.decode(request.m_requestedVersion))
+        return false;
+
+    if (!decoder.decodeEnum(request.m_indexRecordType))
+        return false;
+
+    if (!decoder.decodeEnum(request.m_requestType))
+        return false;
+
+    bool hasObject;
+
+    if (!decoder.decode(hasObject))
+        return false;
+    if (hasObject) {
+        std::unique_ptr<IDBResourceIdentifier> object = std::make_unique<IDBResourceIdentifier>();
+        if (!decoder.decode(*object))
+            return false;
+        request.m_requestIdentifier = WTFMove(object);
+    }
+
+    if (!decoder.decode(hasObject))
+        return false;
+    if (hasObject) {
+        std::unique_ptr<IDBResourceIdentifier> object = std::make_unique<IDBResourceIdentifier>();
+        if (!decoder.decode(*object))
+            return false;
+        request.m_transactionIdentifier = WTFMove(object);
+    }
+
+    if (!decoder.decode(hasObject))
+        return false;
+    if (hasObject) {
+        std::unique_ptr<IDBResourceIdentifier> object = std::make_unique<IDBResourceIdentifier>();
+        if (!decoder.decode(*object))
+            return false;
+        request.m_cursorIdentifier = WTFMove(object);
+    }
+
+    return true;
+}
+
+} // namespace WebCore
+
+#endif // ENABLE(INDEXED_DATABASE)