// Marshal a protobuf struct into a database thang.
func marshalDBT(dbt *C.DBT, val proto.Message) (err error) {
buf, err := proto.Marshal(val)
if err != nil {
return
}
if len(buf) > 0 {
dbt.data = unsafe.Pointer(&buf[0])
dbt.size = C.u_int32_t(len(buf))
} else {
dbt.data = nil
dbt.size = 0
}
return
}
// Marshal the key of a record into a database thang.
func (db Database) marshalKey(dbt *C.DBT, rec proto.Message) (err error) {
key := recordKey(rec)
dbtype, err := db.Type()
if err != nil {
return
}
switch dbtype {
case Numbered, Queue:
dbt.data = unsafe.Pointer(key.(*uint32))
dbt.size = 4
default:
err = marshalDBT(dbt, key.(proto.Message))
}
return
}