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- package block
-
- import (
- "errors"
- "fmt"
- "io"
-
- "github.com/tendermint/tendermint/account"
- "github.com/tendermint/tendermint/binary"
- . "github.com/tendermint/tendermint/common"
- )
-
- var (
- ErrVoteUnexpectedStep = errors.New("Unexpected step")
- ErrVoteInvalidAccount = errors.New("Invalid round vote account")
- ErrVoteInvalidSignature = errors.New("Invalid round vote signature")
- ErrVoteInvalidBlockHash = errors.New("Invalid block hash")
- )
-
- type ErrVoteConflictingSignature struct {
- VoteA *Vote
- VoteB *Vote
- }
-
- func (err *ErrVoteConflictingSignature) Error() string {
- return "Conflicting round vote signature"
- }
-
- // Represents a prevote, precommit, or commit vote from validators for consensus.
- // Commit votes get aggregated into the next block's Validaiton.
- // See the whitepaper for details.
- type Vote struct {
- Height uint
- Round uint
- Type byte
- BlockHash []byte // empty if vote is nil.
- BlockParts PartSetHeader // zero if vote is nil.
- Signature account.SignatureEd25519
- }
-
- // Types of votes
- const (
- VoteTypePrevote = byte(0x00)
- VoteTypePrecommit = byte(0x01)
- VoteTypeCommit = byte(0x02)
- )
-
- func (vote *Vote) WriteSignBytes(w io.Writer, n *int64, err *error) {
- binary.WriteUvarint(vote.Height, w, n, err)
- binary.WriteUvarint(vote.Round, w, n, err)
- binary.WriteByte(vote.Type, w, n, err)
- binary.WriteByteSlice(vote.BlockHash, w, n, err)
- binary.WriteBinary(vote.BlockParts, w, n, err)
- }
-
- func (vote *Vote) Copy() *Vote {
- voteCopy := *vote
- return &voteCopy
- }
-
- func (vote *Vote) String() string {
- var typeString string
- switch vote.Type {
- case VoteTypePrevote:
- typeString = "Prevote"
- case VoteTypePrecommit:
- typeString = "Precommit"
- case VoteTypeCommit:
- typeString = "Commit"
- default:
- panic("Unknown vote type")
- }
-
- return fmt.Sprintf("%v{%v/%v %X#%v %v}", typeString, vote.Height, vote.Round, Fingerprint(vote.BlockHash), vote.BlockParts, vote.Signature)
- }
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