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76 lines
1.9 KiB
76 lines
1.9 KiB
package blocks
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import (
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"errors"
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"fmt"
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"io"
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. "github.com/tendermint/tendermint/binary"
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)
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const (
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VoteTypePrevote = byte(0x00)
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VoteTypePrecommit = byte(0x01)
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VoteTypeCommit = byte(0x02)
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)
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var (
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ErrVoteUnexpectedPhase = errors.New("Unexpected phase")
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ErrVoteInvalidAccount = errors.New("Invalid round vote account")
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ErrVoteInvalidSignature = errors.New("Invalid round vote signature")
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ErrVoteInvalidBlockHash = errors.New("Invalid block hash")
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ErrVoteConflictingSignature = errors.New("Conflicting round vote signature")
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)
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// Represents a prevote, precommit, or commit vote for proposals.
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type Vote struct {
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Height uint32
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Round uint16
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Type byte
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BlockHash []byte // empty if vote is nil.
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Signature
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}
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func ReadVote(r io.Reader, n *int64, err *error) *Vote {
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return &Vote{
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Height: ReadUInt32(r, n, err),
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Round: ReadUInt16(r, n, err),
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Type: ReadByte(r, n, err),
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BlockHash: ReadByteSlice(r, n, err),
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Signature: ReadSignature(r, n, err),
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}
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}
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func (v *Vote) WriteTo(w io.Writer) (n int64, err error) {
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WriteUInt32(w, v.Height, &n, &err)
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WriteUInt16(w, v.Round, &n, &err)
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WriteByte(w, v.Type, &n, &err)
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WriteByteSlice(w, v.BlockHash, &n, &err)
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WriteBinary(w, v.Signature, &n, &err)
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return
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}
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func (v *Vote) GetSignature() Signature {
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return v.Signature
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}
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func (v *Vote) SetSignature(sig Signature) {
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v.Signature = sig
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}
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func (v *Vote) String() string {
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blockHash := v.BlockHash
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if len(v.BlockHash) == 0 {
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blockHash = make([]byte, 6) // for printing
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}
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switch v.Type {
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case VoteTypePrevote:
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return fmt.Sprintf("Vote{%v/%v:%X:%v}", v.Height, v.Round, blockHash, v.SignerId)
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case VoteTypePrecommit:
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return fmt.Sprintf("Precommit{%v/%v:%X:%v}", v.Height, v.Round, blockHash, v.SignerId)
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case VoteTypeCommit:
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return fmt.Sprintf("Commit{%v/%v:%X:%v}", v.Height, v.Round, blockHash, v.SignerId)
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default:
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panic("Unknown vote type")
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}
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}
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