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  1. package types
  2. import (
  3. "bytes"
  4. "fmt"
  5. "io"
  6. . "github.com/tendermint/go-common"
  7. "github.com/tendermint/go-crypto"
  8. "github.com/tendermint/go-wire"
  9. )
  10. // Volatile state for each Validator
  11. // Also persisted with the state, but fields change
  12. // every height|round so they don't go in merkle.Tree
  13. type Validator struct {
  14. Address []byte `json:"address"`
  15. PubKey crypto.PubKeyEd25519 `json:"pub_key"`
  16. LastCommitHeight int `json:"last_commit_height"`
  17. VotingPower int64 `json:"voting_power"`
  18. Accum int64 `json:"accum"`
  19. }
  20. // Creates a new copy of the validator so we can mutate accum.
  21. // Panics if the validator is nil.
  22. func (v *Validator) Copy() *Validator {
  23. vCopy := *v
  24. return &vCopy
  25. }
  26. // Returns the one with higher Accum.
  27. func (v *Validator) CompareAccum(other *Validator) *Validator {
  28. if v == nil {
  29. return other
  30. }
  31. if v.Accum > other.Accum {
  32. return v
  33. } else if v.Accum < other.Accum {
  34. return other
  35. } else {
  36. if bytes.Compare(v.Address, other.Address) < 0 {
  37. return v
  38. } else if bytes.Compare(v.Address, other.Address) > 0 {
  39. return other
  40. } else {
  41. PanicSanity("Cannot compare identical validators")
  42. return nil
  43. }
  44. }
  45. }
  46. func (v *Validator) String() string {
  47. if v == nil {
  48. return "nil-Validator"
  49. }
  50. return fmt.Sprintf("Validator{%X %v %v-%v-%v VP:%v A:%v}",
  51. v.Address,
  52. v.PubKey,
  53. v.LastCommitHeight,
  54. v.VotingPower,
  55. v.Accum)
  56. }
  57. func (v *Validator) Hash() []byte {
  58. return wire.BinaryRipemd160(v)
  59. }
  60. //-------------------------------------
  61. var ValidatorCodec = validatorCodec{}
  62. type validatorCodec struct{}
  63. func (vc validatorCodec) Encode(o interface{}, w io.Writer, n *int, err *error) {
  64. wire.WriteBinary(o.(*Validator), w, n, err)
  65. }
  66. func (vc validatorCodec) Decode(r io.Reader, n *int, err *error) interface{} {
  67. return wire.ReadBinary(&Validator{}, r, 0, n, err)
  68. }
  69. func (vc validatorCodec) Compare(o1 interface{}, o2 interface{}) int {
  70. PanicSanity("ValidatorCodec.Compare not implemented")
  71. return 0
  72. }