raft/raft.go
func (r *raft) bcastHeartbeat() {
	lastCtx := r.readOnly.lastPendingRequestCtx()
	if len(lastCtx) == 0 {
		r.bcastHeartbeatWithCtx(nil)
	} else {
		r.bcastHeartbeatWithCtx([]byte(lastCtx))
	}
}
func (r *raft) bcastHeartbeat() {
	lastCtx := r.readOnly.lastPendingRequestCtx()
	if len(lastCtx) == 0 {
		r.bcastHeartbeatWithCtx(nil)
	} else {
		r.bcastHeartbeatWithCtx([]byte(lastCtx))
	}
}
func ( r * raft ) bcastHeartbeat ( ) { lastCtx := r . readOnly . lastPendingRequestCtx ( ) if len ( lastCtx ) == 0 { r . bcastHeartbeatWithCtx ( nil ) } else { r . bcastHeartbeatWithCtx ( [ ] byte ( lastCtx ) ) } }
// bcastHeartbeat sends RPC, without entries to all the peers.
bcastHeartbeat sends RPC without entries to all the peers .