Пример #1
0
        /// <summary>
        ///     Creates a candle event subscription.
        /// </summary>
        /// <remarks>
        ///     Don't call this method inside any listeners and callbacks of NativeSubscription, NativeConnection,
        /// NativeRegionalBook, NativeSnapshotSubscription classes
        /// </remarks>
        /// <param name="time">Date time in the past.</param>
        /// <param name="listener">Candle listener callback.</param>
        /// <returns>Subscription object.</returns>
        /// <exception cref="ArgumentNullException">Listener is null.</exception>
        /// <exception cref="DxException"></exception>
        public IDxSubscription CreateSubscription(DateTime?time, IDxCandleListener listener)
        {
            if (handle == IntPtr.Zero)
            {
                throw new NativeDxException("not connected");
            }

            IDxSubscription result = new NativeSubscription(this, time, listener);

            subscriptions.Add(result);
            return(result);
        }
Пример #2
0
 /// <summary>
 /// Create Candle event subscription.
 /// For rest events use another constructor.
 /// </summary>
 /// <param name="connection">Native connection pointer.</param>
 /// <param name="time">Date time in the past.</param>
 /// <param name="listener">Candle event listener.</param>
 /// <exception cref="ArgumentException">One of passed parameters is not valid.</exception>
 /// <exception cref="DxException"></exception>
 public NativeSubscription(NativeConnection connection, DateTime?time, IDxCandleListener listener) :
     this(connection, time, EventSubscriptionFlag.Default, listener)
 {
 }
Пример #3
0
        /// <summary>
        /// Create Candle event subscription.
        /// For rest events use another constructor.
        /// </summary>
        /// <param name="connection">Native connection pointer.</param>
        /// <param name="time">Date time in the past.</param>
        /// <param name="eventSubscriptionFlags">event subscription flags</param>
        /// <param name="listener">Candle event listener.</param>
        /// <exception cref="ArgumentException">One of passed parameters is not valid.</exception>
        /// <exception cref="DxException"></exception>
        public NativeSubscription(NativeConnection connection, DateTime?time, EventSubscriptionFlag eventSubscriptionFlags, IDxCandleListener listener)
        {
            if (listener == null)
            {
                throw new ArgumentNullException(nameof(listener));
            }

            connectionPtr = connection.Handler;
            eventType     = EventType.Candle;
            eventListener = listener;

            var unixTimestamp = time == null ? 0 : Tools.DateToUnixTime((DateTime)time);

            C.CheckOk(eventSubscriptionFlags == EventSubscriptionFlag.Default
                ? C.Instance.dxf_create_subscription_timed(connectionPtr, eventType, unixTimestamp, out subscriptionPtr)
                : C.Instance.dxf_create_subscription_timed_with_flags(connectionPtr, eventType, unixTimestamp,
                                                                      eventSubscriptionFlags, out subscriptionPtr));

            try
            {
                C.CheckOk(C.Instance.dxf_attach_event_listener_v2(subscriptionPtr, callback = OnEvent, IntPtr.Zero));
            }
            catch (DxException)
            {
                C.Instance.dxf_close_subscription(subscriptionPtr);
                throw;
            }
        }