func putVarIntList(w io.Writer, x []uint64) {
if _, err := encVarint.WriteVarInt(w, uint64(len(x))); err != nil {
log.Println("putVarIntList lenght:", err.Error())
}
for _, v := range x {
if _, err := encVarint.WriteVarInt(w, uint64(v)); err != nil {
log.Println("putVarIntList:", err.Error())
}
}
}
func writeMsg(w io.Writer, m msg) error {
// TODO performance: pre-allocate byte slices, share between instances.
buf := new(bytes.Buffer)
putBytes(buf, m.PowNonce[:])
putUint32(buf, uint32(m.Time)) // XXX moving to uint64 soon.
encVarint.WriteVarInt(buf, m.StreamNumber)
putBytes(buf, m.Encrypted)
if _, err := w.Write(buf.Bytes()); err != nil {
log.Println("writeMessage write failed: ", err)
}
return nil
}
func writeInventoryVector(w io.Writer, invs []inventoryVector) (err error) {
if len(invs) > maxInventoryEntries {
return fmt.Errorf("Asked to write %d inventory vectors for getdata, but the maximum is %d. Ignoring.", len(invs), maxInventoryEntries)
}
buf := new(bytes.Buffer)
encVarint.WriteVarInt(buf, uint64(len(invs)))
if err = binary.Write(buf, binary.BigEndian, invs); err != nil {
return err
}
_, err = w.Write(buf.Bytes())
return err
}