// DeferToBtcd sends a marshaled JSON-RPC request to btcd and returns
// the reply.
func DeferToBtcd(cmd btcjson.Cmd) (interface{}, *btcjson.Error) {
// Update cmd with a new ID so replies can be handled without frontend
// IDs clashing with requests originating in btcwallet. The original
// request ID is always used in the frontend's response.
cmd.SetId(<-NewJSONID)
request := NewRPCRequest(cmd, nil)
response := <-CurrentRPCConn().SendRequest(request)
return response.Result, response.Err
}
