示例#1
0
func getTimeout(cID *pb.ChaincodeID) (time.Duration, error) {
	ledger, err := ledger.GetLedger()
	if err == nil {
		chaincodeID := cID.Name
		txUUID, err := ledger.GetState(chaincodeID, "github.com_openblockchain_obc-peer_chaincode_id", true)
		if err == nil {
			tx, err := ledger.GetTransactionByUUID(string(txUUID))
			if err == nil {
				chaincodeDeploymentSpec := &pb.ChaincodeDeploymentSpec{}
				proto.Unmarshal(tx.Payload, chaincodeDeploymentSpec)
				chaincodeSpec := chaincodeDeploymentSpec.GetChaincodeSpec()
				timeout := time.Duration(time.Duration(chaincodeSpec.Timeout) * time.Millisecond)
				return timeout, nil
			}
		}
	}

	return -1, errFailedToGetChainCodeSpecForTransaction
}
示例#2
0
// LaunchChaincode will launch the chaincode if not running (if running return nil) and will wait for handler of the chaincode to get into FSM ready state.
func (chaincodeSupport *ChaincodeSupport) LaunchChaincode(context context.Context, t *pb.Transaction) (*pb.ChaincodeID, *pb.ChaincodeInput, error) {
	//build the chaincode
	var cID *pb.ChaincodeID
	var cMsg *pb.ChaincodeInput
	var f *string
	var initargs []string

	if t.Type == pb.Transaction_CHAINCODE_NEW {
		cds := &pb.ChaincodeDeploymentSpec{}
		err := proto.Unmarshal(t.Payload, cds)
		if err != nil {
			return nil, nil, err
		}
		cID = cds.ChaincodeSpec.ChaincodeID
		cMsg = cds.ChaincodeSpec.CtorMsg
		f = &cMsg.Function
		initargs = cMsg.Args
	} else if t.Type == pb.Transaction_CHAINCODE_EXECUTE || t.Type == pb.Transaction_CHAINCODE_QUERY {
		ci := &pb.ChaincodeInvocationSpec{}
		err := proto.Unmarshal(t.Payload, ci)
		if err != nil {
			return nil, nil, err
		}
		cID = ci.ChaincodeSpec.ChaincodeID
		cMsg = ci.ChaincodeSpec.CtorMsg
	} else {
		chaincodeSupport.handlerMap.Unlock()
		return nil, nil, fmt.Errorf("invalid transaction type: %d", t.Type)
	}
	chaincode := cID.Name
	chaincodeSupport.handlerMap.Lock()
	var handler *Handler
	var ok bool
	var err error
	//if its in the map, there must be a connected stream...nothing to do
	if handler, ok = chaincodeSupport.chaincodeHasBeenLaunched(chaincode); ok {
		if !handler.registered {
			chaincodeSupport.handlerMap.Unlock()
			chaincodeLog.Debug("premature execution - chaincode (%s) is being launched", chaincode)
			err = fmt.Errorf("premature execution - chaincode (%s) is being launched", chaincode)
			return cID, cMsg, err
		}
		if handler.isRunning() {
			chaincodeLog.Debug("chaincode is running(no need to launch) : %s", chaincode)
			chaincodeSupport.handlerMap.Unlock()
			return cID, cMsg, nil
		}
		chaincodeLog.Debug("Container not in READY state(%s)...send init/ready", handler.FSM.Current())
	}
	chaincodeSupport.handlerMap.Unlock()

	var depTx *pb.Transaction

	//extract depTx so we can initialize hander.deployTXSecContext
	//we need it only after container is launched and only if this is not a deploy tx
	//NOTE: ideally this section should be moved before just before sendInitOrReady where
	//      where we need depTx.  However, as we don't check for ExecuteTransactions failure
	//      in consensus/helper, the following race is not resolved:
	//         1) deploy creates image
	//         2) query launches chaincode
	//         3) deploy returns "premature execution" error
	//         4) error ignored and deploy committed
	//         5) query successfully retrives committed tx and calls sendInitOrReady
	// See issue #710

	if t.Type != pb.Transaction_CHAINCODE_NEW {
		ledger, ledgerErr := ledger.GetLedger()
		if ledgerErr != nil {
			return cID, cMsg, fmt.Errorf("Failed to get handle to ledger (%s)", ledgerErr)
		}

		//hopefully we are restarting from existing image and the deployed transaction exists
		depTx, ledgerErr = ledger.GetTransactionByUUID(chaincode)
		if ledgerErr != nil {
			return cID, cMsg, fmt.Errorf("Could not get deployment transaction for %s - %s", chaincode, ledgerErr)
		}
		if depTx == nil {
			return cID, cMsg, fmt.Errorf("deployment transaction does not exist for %s", chaincode)
		}
		if nil != chaincodeSupport.secHelper {
			var err error
			depTx, err = chaincodeSupport.secHelper.TransactionPreExecution(depTx)
			// Note that t is now decrypted and is a deep clone of the original input t
			if nil != err {
				return cID, cMsg, fmt.Errorf("failed tx preexecution%s - %s", chaincode, err)
			}
		}
	}

	//from here on : if we launch the container and get an error, we need to stop the container
	if !chaincodeSupport.userRunsCC && handler == nil {
		_, err = chaincodeSupport.launchAndWaitForRegister(context, cID, t.Uuid)
		if err != nil {
			chaincodeLog.Debug("launchAndWaitForRegister failed %s", err)
			return cID, cMsg, err
		}
	}

	if err == nil {
		//send init (if (f,args)) and wait for ready state
		err = chaincodeSupport.sendInitOrReady(context, t.Uuid, chaincode, f, initargs, chaincodeSupport.ccStartupTimeout, t, depTx)
		if err != nil {
			chaincodeLog.Debug("sending init failed(%s)", err)
			err = fmt.Errorf("Failed to init chaincode(%s)", err)
			errIgnore := chaincodeSupport.stopChaincode(context, cID)
			if errIgnore != nil {
				chaincodeLog.Debug("stop failed %s(%s)", errIgnore, err)
			}
		}
		chaincodeLog.Debug("sending init completed")
	}

	chaincodeLog.Debug("LaunchChaincode complete")

	return cID, cMsg, err
}