ibrdtn/ibrdtn/streams/StreamDataSegment.h

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/*
 * StreamDataSegment.h
 *
 *  Created on: 30.06.2009
 *      Author: morgenro
 */


#ifndef STREAMDATASEGMENT_H_
#define STREAMDATASEGMENT_H_

#include <stdlib.h>
#include <iostream>

namespace dtn
{
        namespace streams
        {
                class StreamDataSegment
                {
                public:
                        enum SegmentType
                        {
                                MSG_DATA_SEGMENT = 0x1,
                                MSG_ACK_SEGMENT = 0x2,
                                MSG_REFUSE_BUNDLE = 0x3,
                                MSG_KEEPALIVE = 0x4,
                                MSG_SHUTDOWN = 0x5
                        };

                        enum SegmentMark
                        {
                                MSG_MARK_BEGINN = 0x02,
                                MSG_MARK_END = 0x01
                        };

                        enum ShutdownReason
                        {
                                MSG_SHUTDOWN_NONE = 0xff,
                                MSG_SHUTDOWN_IDLE_TIMEOUT = 0x00,
                                MSG_SHUTDOWN_VERSION_MISSMATCH = 0x01,
                                MSG_SHUTDOWN_BUSY = 0x02
                        };

                        StreamDataSegment(SegmentType type, size_t size); // creates a ACK or DATA segment
                        StreamDataSegment(SegmentType type = MSG_KEEPALIVE); // Creates a Keep-Alive Message
                        StreamDataSegment(ShutdownReason reason, size_t reconnect = 0);  // Creates a Shutdown Message

                        virtual ~StreamDataSegment();

                        size_t _value;
                        SegmentType _type;
                        ShutdownReason _reason;
                        u_int8_t _flags;

                        friend std::ostream &operator<<(std::ostream &stream, const StreamDataSegment &seg);
                        friend std::istream &operator>>(std::istream &stream, StreamDataSegment &seg);
                };
        }
}

#endif /* STREAMDATASEGMENT_H_ */