1.代码来自tendermint

2.代码段如下

go 使用定时器从channel获取结果的写法
timer := time.NewTimer(60 * 2 * time.Second)
	select {
	case deliverTxResMsg := <-deliverTxResCh:
		deliverTxRes := deliverTxResMsg.(types.TMEventData).Unwrap().(types.EventDataTx)
		// The tx was included in a block.
		deliverTxR := deliverTxRes.Result
		logger.Info("DeliverTx passed ", "tx", cmn.HexBytes(tx), "response", deliverTxR)
		return &ctypes.ResultBroadcastTxCommit{
			CheckTx:   *checkTxR,
			DeliverTx: deliverTxR,
			Hash:      tx.Hash(),
			Height:    deliverTxRes.Height,
		}, nil
	case <-timer.C://超时
		logger.Error("failed to include tx")
		return &ctypes.ResultBroadcastTxCommit{
			CheckTx:   *checkTxR,
			DeliverTx: abci.ResponseDeliverTx{},
			Hash:      tx.Hash(),
		}, fmt.Errorf("Timed out waiting for transaction to be included in a block")
	}