func (e *segmentEntry) write(writer typedio.Writer) (err os.Error) {
err = writer.WriteUint64(e.position) // position
if err != nil {
return err
}
buf := gsbuffer.New()
err = e.mutation.serialize(buf)
if err != nil {
return err
}
e.mutsize = uint32(buf.Size)
err = writer.WriteUint16(uint16(e.token)) // token
if err != nil {
return err
}
err = writer.WriteUint32(e.mutsize) // size of mutation
if err != nil {
return err
}
buf.Seek(0, 0)
written, err := writer.Write(buf.Bytes()) // mutation
if err != nil {
return err
}
if written != int(e.mutsize) {
return os.NewError(fmt.Sprintf("Couldn't write the whole mutation entry! Written %d of %d", written, e.mutsize))
}
return
}
func (mut *mutation) serialize(writer typedio.Writer) (err os.Error) {
err = writer.WriteUint16(mut.typ) // type
if err != nil {
return
}
switch mut.typ {
case mut_create_vs:
case mut_commit_vs:
case mut_rollback_vs:
err = writer.WriteUint32(mut.vs) // viewstate
if err != nil {
return
}
case mut_obj_op:
err = writer.WriteUint16(operation2id(mut.op.(operation))) // operation id
if err != nil {
return
}
var bytes []uint8
bytes, err = proto.Marshal(mut.op)
if err != nil {
return
}
err = writer.WriteUint32(uint32(len(bytes))) // operation size
if err != nil {
return
}
_, err = writer.Write(bytes) // operation
if err != nil {
return
}
_, err = writer.Write([]byte{mut.flags}) // flags
if err != nil {
return
}
err = writer.WriteUint64(mut.lastPos) // object last position
if err != nil {
return
}
}
return
}