Esempio n. 1
0
        /// <summary>
        /// Creates a new <see cref="DataReader" /> with the desired QoS policies and attaches to it the specified <see cref="DataReaderListener" />.
        /// </summary>
        /// <remarks>
        /// <para>The returned <see cref="DataReader" /> will be attached and belong to the <see cref="Subscriber" />.</para>
        /// <para>The <see cref="ITopicDescription"/> passed to this operation must have been created from the same <see cref="DomainParticipant" /> that was used to
        /// create this <see cref="Subscriber" />. If the <see cref="ITopicDescription"/> was created from a different <see cref="DomainParticipant" />, the operation will fail and
        /// return a <see langword="null"/> result.</para>
        /// </remarks>
        /// <param name="topicDescription">The <see cref="ITopicDescription" /> that the <see cref="DataReader" /> will be associated with.</param>
        /// <param name="qos">The <see cref="DataReaderQos" /> policies to be used for creating the new <see cref="DataReader" />.</param>
        /// <param name="listener">The <see cref="DataReaderListener" /> to be attached to the newly created <see cref="DataReader" />.</param>
        /// <param name="statusMask">The <see cref="StatusMask" /> of which status changes the listener should be notified.</param>
        /// <returns>The newly created <see cref="DataReader" /> on success, otherwise <see langword="null"/>.</returns>
        public DataReader CreateDataReader(ITopicDescription topicDescription, DataReaderQos qos, DataReaderListener listener, StatusMask statusMask)
        {
            if (topicDescription is null)
            {
                throw new ArgumentNullException(nameof(topicDescription));
            }

            DataReaderQosWrapper qosWrapper = default;

            if (qos is null)
            {
                qos = new DataReaderQos();
                var ret = GetDefaultDataReaderQos(qos);
                if (ret == ReturnCode.Ok)
                {
                    qosWrapper = qos.ToNative();
                }
            }
            else
            {
                qosWrapper = qos.ToNative();
            }

            IntPtr nativeListener = IntPtr.Zero;

            if (listener != null)
            {
                nativeListener = listener.ToNative();
            }

            IntPtr td     = topicDescription.ToNativeTopicDescription();
            IntPtr native = UnsafeNativeMethods.CreateDataReader(_native, td, qosWrapper, nativeListener, statusMask);

            qos.Release();

            if (native.Equals(IntPtr.Zero))
            {
                return(null);
            }

            var dr = new DataReader(native)
            {
                Listener = listener,
            };

            EntityManager.Instance.Add((dr as Entity).ToNative(), dr);
            ContainedEntities.Add(dr);

            return(dr);
        }
Esempio n. 2
0
        /// <summary>
        /// Sets a default value of the <see cref="DataReader" /> QoS policies which will be used for newly created <see cref="DataReader" /> entities
        /// in the case where the QoS policies are defaulted in the CreateDataReader operation.
        /// </summary>
        /// <remarks>
        /// This operation will check that the resulting policies are self consistent; if they are not, the operation will have no effect and
        /// return <see cref="ReturnCode.InconsistentPolicy" />.
        /// </remarks>
        /// <param name="qos">The default <see cref="DataReaderQos" /> to be set.</param>
        /// <returns>The <see cref="ReturnCode" /> that indicates the operation result.</returns>
        public ReturnCode SetDefaultDataReaderQos(DataReaderQos qos)
        {
            if (qos is null)
            {
                return(ReturnCode.BadParameter);
            }

            var qosNative = qos.ToNative();
            var ret       = UnsafeNativeMethods.SetDefaultDataReaderQos(_native, qosNative);

            qos.Release();

            return(ret);
        }
Esempio n. 3
0
        /// <summary>
        /// Gets the <see cref="DataReader" /> QoS policies.
        /// </summary>
        /// <param name="qos">The <see cref="DataReaderQos" /> to be filled up.</param>
        /// <returns>The <see cref="ReturnCode" /> that indicates the operation result.</returns>
        public ReturnCode GetQos(DataReaderQos qos)
        {
            if (qos == null)
            {
                return(ReturnCode.BadParameter);
            }

            DataReaderQosWrapper qosWrapper = default;
            var ret = UnsafeNativeMethods.GetQos(_native, ref qosWrapper);

            if (ret == ReturnCode.Ok)
            {
                qos.FromNative(qosWrapper);
            }

            qos.Release();

            return(ret);
        }
Esempio n. 4
0
 /// <summary>
 /// Creates a new <see cref="DataReader" /> with the desired QoS policies and without listener attached.
 /// </summary>
 /// <remarks>
 /// <para>The returned <see cref="DataReader" /> will be attached and belong to the <see cref="Subscriber" />.</para>
 /// <para>The <see cref="ITopicDescription"/> passed to this operation must have been created from the same <see cref="DomainParticipant" /> that was used to
 /// create this <see cref="Subscriber" />. If the <see cref="ITopicDescription"/> was created from a different <see cref="DomainParticipant" />, the operation will fail and
 /// return a <see langword="null"/> result.</para>
 /// </remarks>
 /// <param name="topicDescription">The <see cref="ITopicDescription" /> that the <see cref="DataReader" /> will be associated with.</param>
 /// <param name="qos">The <see cref="DataReaderQos" /> policies to be used for creating the new <see cref="DataReader" />.</param>
 /// <returns>The newly created <see cref="DataReader" /> on success, otherwise <see langword="null"/>.</returns>
 public DataReader CreateDataReader(ITopicDescription topicDescription, DataReaderQos qos)
 {
     return(CreateDataReader(topicDescription, qos, null, StatusMask.DefaultStatusMask));
 }
Esempio n. 5
0
 /// <summary>
 /// Creates a new <see cref="DataReader" /> with the desired QoS policies and attaches to it the specified <see cref="DataReaderListener" />.
 /// The specified <see cref="DataReaderListener" /> will be attached with the default <see cref="StatusMask" />.
 /// </summary>
 /// <param name="topicDescription">The <see cref="ITopicDescription" /> that the <see cref="DataReader" /> will be associated with.</param>
 /// <param name="qos">The <see cref="DataReaderQos" /> policies to be used for creating the new <see cref="DataReader" />.</param>
 /// <param name="listener">The <see cref="DataReaderListener" /> to be attached to the newly created <see cref="DataReader" />.</param>
 /// <returns>The newly created <see cref="DataReader" /> on success, otherwise <see langword="null"/>.</returns>
 public DataReader CreateDataReader(ITopicDescription topicDescription, DataReaderQos qos, DataReaderListener listener)
 {
     return(CreateDataReader(topicDescription, qos, listener, StatusMask.DefaultStatusMask));
 }