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97 lines
2.5 KiB
97 lines
2.5 KiB
package state
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import (
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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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// Holds state for a Validator at a given height+round.
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// Meant to be discarded every round of the consensus protocol.
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// TODO consider moving this to another common types package.
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type Validator struct {
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Account
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BondHeight uint32
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UnbondHeight uint32
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LastCommitHeight uint32
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VotingPower uint64
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Accum int64
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}
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// Used to persist the state of ConsensusStateControl.
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func ReadValidator(r io.Reader, n *int64, err *error) *Validator {
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return &Validator{
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Account: ReadAccount(r, n, err),
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BondHeight: ReadUInt32(r, n, err),
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UnbondHeight: ReadUInt32(r, n, err),
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LastCommitHeight: ReadUInt32(r, n, err),
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VotingPower: ReadUInt64(r, n, err),
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Accum: ReadInt64(r, n, err),
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}
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}
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// Creates a new copy of the validator so we can mutate accum.
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func (v *Validator) Copy() *Validator {
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return &Validator{
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Account: v.Account,
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BondHeight: v.BondHeight,
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UnbondHeight: v.UnbondHeight,
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LastCommitHeight: v.LastCommitHeight,
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VotingPower: v.VotingPower,
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Accum: v.Accum,
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}
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}
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// Used to persist the state of ConsensusStateControl.
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func (v *Validator) WriteTo(w io.Writer) (n int64, err error) {
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WriteBinary(w, v.Account, &n, &err)
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WriteUInt32(w, v.BondHeight, &n, &err)
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WriteUInt32(w, v.UnbondHeight, &n, &err)
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WriteUInt32(w, v.LastCommitHeight, &n, &err)
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WriteUInt64(w, v.VotingPower, &n, &err)
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WriteInt64(w, v.Accum, &n, &err)
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return
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}
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// Returns the one with higher Accum.
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func (v *Validator) CompareAccum(other *Validator) *Validator {
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if v == nil {
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return other
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}
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if v.Accum > other.Accum {
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return v
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} else if v.Accum < other.Accum {
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return other
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} else {
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if v.Id < other.Id {
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return v
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} else if v.Id > other.Id {
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return other
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} else {
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panic("Cannot compare identical validators")
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}
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}
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}
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func (v *Validator) String() string {
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return fmt.Sprintf("Validator{%v VP:%v A:%v}", v.Account, v.VotingPower, v.Accum)
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}
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//-------------------------------------
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var ValidatorCodec = validatorCodec{}
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type validatorCodec struct{}
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func (vc validatorCodec) Encode(o interface{}, w io.Writer, n *int64, err *error) {
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WriteBinary(w, o.(*Validator), n, err)
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}
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func (vc validatorCodec) Decode(r io.Reader, n *int64, err *error) interface{} {
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return ReadValidator(r, n, err)
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}
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func (vc validatorCodec) Compare(o1 interface{}, o2 interface{}) int {
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panic("ValidatorCodec.Compare not implemented")
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}
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