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package types
import (
"fmt"
"io"
"github.com/tendermint/go-crypto"
"github.com/tendermint/go-wire"
"github.com/tendermint/go-wire/data"
cmn "github.com/tendermint/tmlibs/common"
)
// Heartbeat is a simple vote-like structure so validators can alert others that
// they are alive and waiting for transactions.
type Heartbeat struct {
ValidatorAddress data.Bytes `json:"validator_address"`
ValidatorIndex int `json:"validator_index"`
Height int `json:"height"`
Round int `json:"round"`
Sequence int `json:"sequence"`
Signature crypto.Signature `json:"signature"`
}
// WriteSignBytes writes the Heartbeat for signing.
func (heartbeat *Heartbeat) WriteSignBytes(chainID string, w io.Writer, n *int, err *error) {
wire.WriteJSON(CanonicalJSONOnceHeartbeat{
chainID,
CanonicalHeartbeat(heartbeat),
}, w, n, err)
}
// Copy makes a copy of the Heartbeat.
func (heartbeat *Heartbeat) Copy() *Heartbeat {
heartbeatCopy := *heartbeat
return &heartbeatCopy
}
// String returns a string representation of the Heartbeat.
func (heartbeat *Heartbeat) String() string {
if heartbeat == nil {
return "nil-heartbeat"
}
return fmt.Sprintf("Heartbeat{%v:%X %v/%02d (%v) %v}",
heartbeat.ValidatorIndex, cmn.Fingerprint(heartbeat.ValidatorAddress),
heartbeat.Height, heartbeat.Round, heartbeat.Sequence, heartbeat.Signature)
}