qmf/engine/ResilientConnection.h

Go to the documentation of this file.

#ifndef _QmfEngineResilientConnection_
#define _QmfEngineResilientConnection_

/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 * 
 *   http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */

#include <qmf/engine/Message.h>
#include <qmf/engine/ConnectionSettings.h>
#include <string>

namespace qmf {
namespace engine {

    class ResilientConnectionImpl;

    struct ResilientConnectionEvent {
        enum EventKind {
            CONNECTED      = 1,
            DISCONNECTED   = 2,
            SESSION_CLOSED = 3,
            RECV           = 4
        };

        EventKind kind;
        void*     sessionContext; // SESSION_CLOSED, RECV
        char*     errorText;      // DISCONNECTED, SESSION_CLOSED
        Message   message;        // RECV
    };

    class SessionHandle {
        friend class ResilientConnectionImpl;
        void* impl;
    };

    class ResilientConnection {
    public:

        ResilientConnection(const ConnectionSettings& settings);
        ~ResilientConnection();

        bool isConnected() const;

        bool getEvent(ResilientConnectionEvent& event);

        void popEvent();

        bool createSession(const char* name, void* sessionContext, SessionHandle& handle);

        void destroySession(SessionHandle handle);

        void sendMessage(SessionHandle handle, Message& message);

        void declareQueue(SessionHandle handle, char* queue);

        void deleteQueue(SessionHandle handle, char* queue);

        void bind(SessionHandle handle, char* exchange, char* queue, char* key);

        void unbind(SessionHandle handle, char* exchange, char* queue, char* key);

        void setNotifyFd(int fd);

        void notify();

    private:
        ResilientConnectionImpl* impl;
    };
}
}

#endif