Ejemplo n.º 1
0
func (this *Context) Recover() {
	err := recover()
	if err != nil {
		buf := make([]byte, 1<<16)
		n := runtime.Stack(buf, false)
		s := string(buf[0:n])
		logging.Severep("", logging.Pair{"panic", err},
			logging.Pair{"stack", s})
		os.Stderr.WriteString(s)
		os.Stderr.Sync()

		switch err := err.(type) {
		case error:
			this.Fatal(errors.NewError(err, fmt.Sprintf("Panic: %v", err)))
		default:
			this.Fatal(errors.NewError(nil, fmt.Sprintf("Panic: %v", err)))
		}
	}
}
Ejemplo n.º 2
0
func (this *Server) serviceRequest(request Request) {
	defer func() {
		err := recover()
		if err != nil {
			buf := make([]byte, 1<<16)
			n := runtime.Stack(buf, false)
			s := string(buf[0:n])
			logging.Severep("", logging.Pair{"panic", err},
				logging.Pair{"stack", s})
			os.Stderr.WriteString(s)
			os.Stderr.Sync()
		}
	}()

	request.Servicing()

	namespace := request.Namespace()
	if namespace == "" {
		namespace = this.namespace
	}

	prepared, err := this.getPrepared(request, namespace)
	if err != nil {
		request.Fail(err)
	}

	if (this.readonly || value.ToBool(request.Readonly())) &&
		(prepared != nil && !prepared.Readonly()) {
		request.Fail(errors.NewServiceErrorReadonly("The server or request is read-only" +
			" and cannot accept this write statement."))
	}

	if request.State() == FATAL {
		request.Failed(this)
		return
	}

	maxParallelism := request.MaxParallelism()
	if maxParallelism <= 0 {
		maxParallelism = this.MaxParallelism()
	}

	context := execution.NewContext(request.Id().String(), this.datastore, this.systemstore, namespace,
		this.readonly, maxParallelism, request.NamedArgs(), request.PositionalArgs(),
		request.Credentials(), request.ScanConsistency(), request.ScanVectorSource(), request.Output())

	build := time.Now()
	operator, er := execution.Build(prepared, context)
	if er != nil {
		error, ok := er.(errors.Error)
		if ok {
			request.Fail(error)
		} else {
			request.Fail(errors.NewError(er, ""))
		}
	}

	if logging.LogLevel() >= logging.TRACE {
		request.Output().AddPhaseTime("instantiate", time.Since(build))
	}

	if request.State() == FATAL {
		request.Failed(this)
		return
	}

	// Apply server execution timeout
	if this.Timeout() > 0 {
		timer := time.AfterFunc(this.Timeout(), func() { request.Expire() })
		defer timer.Stop()
	}

	go request.Execute(this, prepared.Signature(), operator.StopChannel())

	run := time.Now()
	operator.RunOnce(context, nil)

	if logging.LogLevel() >= logging.TRACE {
		request.Output().AddPhaseTime("run", time.Since(run))
		logPhases(request)
	}
}