85 lines
2.0 KiB
Go
85 lines
2.0 KiB
Go
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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. "github.com/tendermint/tendermint/common"
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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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ErrVoteUnexpectedStep = errors.New("Unexpected step")
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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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BlockParts PartSetHeader // zero 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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BlockParts: ReadPartSetHeader(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.BlockParts, &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) Copy() *Vote {
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vCopy := *v
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return &vCopy
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}
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func (v *Vote) String() string {
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var typeString string
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switch v.Type {
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case VoteTypePrevote:
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typeString = "Prevote"
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case VoteTypePrecommit:
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typeString = "Precommit"
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case VoteTypeCommit:
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typeString = "Commit"
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default:
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panic("Unknown vote type")
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}
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return fmt.Sprintf("%v{%v/%v %X#%v %v}", typeString, v.Height, v.Round, Fingerprint(v.BlockHash), v.BlockParts, v.Signature)
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}
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