Source/WebKit2/WebProcess/Databases/WebToDatabaseProcessConnection.h

/*
 * Copyright (C) 2013 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.
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 */

#ifndef WebToDatabaseProcessConnection_h
#define WebToDatabaseProcessConnection_h

#include "Connection.h"
#include "MessageSender.h"
#include "WebIDBConnectionToServer.h"
#include <WebCore/SessionID.h>
#include <wtf/RefCounted.h>

#if ENABLE(DATABASE_PROCESS)

namespace WebCore {
class SessionID;
}

namespace WebKit {

class WebToDatabaseProcessConnection : public RefCounted<WebToDatabaseProcessConnection>, public IPC::Connection::Client, public IPC::MessageSender {
public:
    static Ref<WebToDatabaseProcessConnection> create(IPC::Connection::Identifier connectionIdentifier)
    {
        return adoptRef(*new WebToDatabaseProcessConnection(connectionIdentifier));
    }
    ~WebToDatabaseProcessConnection();
    
    IPC::Connection* connection() const { return m_connection.get(); }

#if ENABLE(INDEXED_DATABASE)
    WebIDBConnectionToServer& idbConnectionToServerForSession(const WebCore::SessionID&);
#endif

private:
    WebToDatabaseProcessConnection(IPC::Connection::Identifier);

    // IPC::Connection::Client
    void didReceiveMessage(IPC::Connection&, IPC::MessageDecoder&) override;
    void didClose(IPC::Connection&) override;
    void didReceiveInvalidMessage(IPC::Connection&, IPC::StringReference messageReceiverName, IPC::StringReference messageName) override;
    IPC::ProcessType localProcessType() override { return IPC::ProcessType::Web; }
    IPC::ProcessType remoteProcessType() override { return IPC::ProcessType::Database; }

    // IPC::MessageSender
    IPC::Connection* messageSenderConnection() override { return m_connection.get(); }
    uint64_t messageSenderDestinationID() override { return 0; }

    RefPtr<IPC::Connection> m_connection;

#if ENABLE(INDEXED_DATABASE)
    HashMap<WebCore::SessionID, RefPtr<WebIDBConnectionToServer>> m_webIDBConnectionsBySession;
    HashMap<uint64_t, RefPtr<WebIDBConnectionToServer>> m_webIDBConnectionsByIdentifier;
#endif
};

} // namespace WebKit

#endif // ENABLE(DATABASE_PROCESS)
#endif // WebToDatabaseProcessConnection_h