Ejemplo n.º 1
0
func (dm *clusterMutation) Unserialize(reader typedio.Reader) {
	dm.version, _ = reader.ReadInt64()
	nbNodes, _ := reader.ReadUint16()
	dm.nodes = make([]*cluster.Node, nbNodes)

	var i uint16
	for i = 0; i < nbNodes; i++ {
		node := cluster.NewEmptyNode()
		node.Unserialize(reader)
		dm.nodes[i] = node
	}
}
Ejemplo n.º 2
0
func (e *segmentEntry) read(reader typedio.Reader) (err os.Error) {
	e.position, err = reader.ReadUint64() // position
	if err != nil {
		return err
	}

	tokenInt, err := reader.ReadUint16() // token
	if err != nil {
		return err
	}
	e.token = Token(tokenInt)

	e.mutsize, err = reader.ReadUint32() // size of mutation
	if err != nil {
		return err
	}

	e.mutation, err = mutationUnserialize(reader) // mutation
	if err != nil {
		return err
	}
	e.mutation.segEntry = e
	e.mutation.token = e.token
	e.mutation.seg = e.segment

	return
}
Ejemplo n.º 3
0
func (cl *CommitLog) readOne(reader typedio.Reader) (mutInfo mutationInfo, size int64) {
	// read mutation id
	id, err := reader.ReadUint8()
	if err != nil {
		log.Fatal("CommitLog: Couldn't read mutation from commit log: %s", err)
	}

	// get the right mutation for the read id
	mutInfo, found := cl.mutations[id]
	if !found {
		log.Fatal("CommitLog: Cannot find mutation id %d!", id)
	}

	// read the mutation
	mutInfo.mutation.Unserialize(reader)

	// read size of the mutation record
	size, err = reader.ReadInt64()
	if err != nil && err != os.EOF {
		log.Fatal("CommitLog: Couldn't read size of mutation from commit log: %s", err)
	}

	return mutInfo, size
}
Ejemplo n.º 4
0
func (n *Node) Unserialize(reader typedio.Reader) (err os.Error) {
	n.Id, err = reader.ReadUint16() // id
	if err != nil {
		return err
	}

	n.Status, err = reader.ReadUint8() // status
	if err != nil {
		return err
	}

	strAddr, err := reader.ReadString() // address
	if err != nil {
		return err
	}
	n.Address = net.ParseIP(strAddr)

	n.TcpPort, err = reader.ReadUint16() // tcp port
	if err != nil {
		return err
	}

	n.UdpPort, err = reader.ReadUint16() // udp port
	if err != nil {
		return err
	}

	nbRings, err := reader.ReadUint8() // nb rings
	if err != nil {
		return err
	}

	n.Rings = make([]NodeRing, nbRings)
	var i uint8
	for i = 0; i < nbRings; i++ { // each ring
		nodeRing := NodeRing{}

		nodeRing.Ring, err = reader.ReadUint8()
		if err != nil {
			return err
		}

		nodeRing.Token, err = reader.ReadString()
		if err != nil {
			return err
		}
	}

	return nil
}
Ejemplo n.º 5
0
func mutationUnserialize(reader typedio.Reader) (mut *mutation, err os.Error) {
	mut = &mutation{}

	mut.typ, err = reader.ReadUint16() // type
	if err != nil {
		return mut, err
	}

	switch mut.typ {

	case mut_create_vs:
	case mut_commit_vs:
	case mut_rollback_vs:
		mut.vs, err = reader.ReadUint32() // viewstate
		if err != nil {
			return mut, err
		}

	case mut_obj_op:
		opid, err := reader.ReadUint16() // operation id
		if err != nil {
			return mut, err
		}
		mut.op = id2operation(opid).(mutationOperation)

		var bytes []byte
		var bytecount uint32

		bytecount, err = reader.ReadUint32() // operation size
		if err != nil {
			return mut, err
		}

		bytes = make([]byte, int(bytecount))
		_, err = reader.Read(bytes) // operation
		if err != nil {
			return mut, err
		}

		err = proto.Unmarshal(bytes, mut.op)
		if err != nil {
			return mut, err
		}

		bytes = make([]byte, 1)
		_, err = reader.Read(bytes) // flags
		if err != nil {
			return mut, err
		}
		mut.flags = bytes[0]

		mut.lastPos, err = reader.ReadUint64() // object last position
		if err != nil {
			return mut, err
		}

	default:
		return nil, os.NewError(fmt.Sprintf("Unknown mutation type to unserialize: %d", mut.typ))
	}

	return mut, err
}
Ejemplo n.º 6
0
func (m *Int64Mutation) Unserialize(reader typedio.Reader) {
	m.val, _ = reader.ReadInt64()
}