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msg_done.go
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/
msg_done.go
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// Copyright 2020 IOTA Stiftung
// SPDX-License-Identifier: Apache-2.0
package mostefaoui
import (
"bytes"
"encoding"
"fmt"
"github.com/iotaledger/wasp/packages/gpa"
"github.com/iotaledger/wasp/packages/util"
)
type msgDone struct {
sender gpa.NodeID
recipient gpa.NodeID
round int
}
var (
_ gpa.Message = &msgDone{}
_ encoding.BinaryUnmarshaler = &msgDone{}
)
func multicastMsgDone(nodeIDs []gpa.NodeID, me gpa.NodeID, round int) gpa.OutMessages {
msgs := gpa.NoMessages()
for _, n := range nodeIDs {
if n != me {
msgs.Add(&msgDone{recipient: n, round: round})
}
}
return msgs
}
func (m *msgDone) Recipient() gpa.NodeID {
return m.recipient
}
func (m *msgDone) SetSender(sender gpa.NodeID) {
m.sender = sender
}
func (m *msgDone) MarshalBinary() ([]byte, error) {
w := bytes.NewBuffer([]byte{})
if err := util.WriteByte(w, msgTypeDone); err != nil {
return nil, err
}
if err := util.WriteUint16(w, uint16(m.round)); err != nil {
return nil, err
}
return w.Bytes(), nil
}
func (m *msgDone) UnmarshalBinary(data []byte) error {
r := bytes.NewReader(data)
msgType, err := util.ReadByte(r)
if err != nil {
return err
}
if msgType != msgTypeDone {
return fmt.Errorf("expected msgTypeDone, got %v", msgType)
}
var round uint16
if err := util.ReadUint16(r, &round); err != nil {
return err
}
m.round = int(round)
return nil
}