package types import ( "errors" "fmt" "io" "time" "github.com/tendermint/go-crypto" "github.com/tendermint/go-wire" "github.com/tendermint/go-wire/data" cmn "github.com/tendermint/tmlibs/common" ) var ( ErrVoteUnexpectedStep = errors.New("Unexpected step") ErrVoteInvalidValidatorIndex = errors.New("Invalid validator index") ErrVoteInvalidValidatorAddress = errors.New("Invalid validator address") ErrVoteInvalidSignature = errors.New("Invalid signature") ErrVoteInvalidBlockHash = errors.New("Invalid block hash") ErrVoteNil = errors.New("Nil vote") ) type ErrVoteConflictingVotes struct { VoteA *Vote VoteB *Vote } func (err *ErrVoteConflictingVotes) Error() string { return "Conflicting votes" } // Types of votes // TODO Make a new type "VoteType" const ( VoteTypePrevote = byte(0x01) VoteTypePrecommit = byte(0x02) ) func IsVoteTypeValid(type_ byte) bool { switch type_ { case VoteTypePrevote: return true case VoteTypePrecommit: return true default: return false } } // Represents a prevote, precommit, or commit vote from validators for consensus. type Vote struct { ValidatorAddress data.Bytes `json:"validator_address"` ValidatorIndex int `json:"validator_index"` Height int64 `json:"height"` Round int `json:"round"` Timestamp time.Time `json:"timestamp"` Type byte `json:"type"` BlockID BlockID `json:"block_id"` // zero if vote is nil. Signature crypto.Signature `json:"signature"` } func (vote *Vote) WriteSignBytes(chainID string, w io.Writer, n *int, err *error) { wire.WriteJSON(CanonicalJSONOnceVote{ chainID, CanonicalVote(vote), }, w, n, err) } func (vote *Vote) Copy() *Vote { voteCopy := *vote return &voteCopy } func (vote *Vote) String() string { if vote == nil { return "nil-Vote" } var typeString string switch vote.Type { case VoteTypePrevote: typeString = "Prevote" case VoteTypePrecommit: typeString = "Precommit" default: cmn.PanicSanity("Unknown vote type") } return fmt.Sprintf("Vote{%v:%X %v/%02d/%v(%v) %X %v @ %s}", vote.ValidatorIndex, cmn.Fingerprint(vote.ValidatorAddress), vote.Height, vote.Round, vote.Type, typeString, cmn.Fingerprint(vote.BlockID.Hash), vote.Signature, CanonicalTime(vote.Timestamp)) }