/// <summary> /// Writes the structure array buffer to the next available node for writing. /// </summary> /// <param name="source">Reference to the buffer to write.</param> /// <param name="startIndex">The index within the buffer to start writing from.</param> /// <param name="timeout">The maximum number of milliseconds to wait for a node to become available for writing. Defaults to 1000 (ms).</param> /// <returns>The number of elements written.</returns> /// <remarks><![CDATA[ /// The maximum number of elements that can be written can be calculated by the following formula: /// ```C# /// Math.Min(source - startIndex, NodeBufferSize) / FastStructure.SizeOf<T>() /// ``` /// ]]></remarks> public virtual int Write <T>(T[] source, int startIndex = 0, int timeout = 1000) where T : struct { // Grab a node for writing Node *node = GetNodeForWriting(timeout); if (node == null) { return(0); } // Write the data using the FastStructure class (much faster than the MemoryMappedViewAccessor WriteArray<T> method) int count = Math.Min(source.Length - startIndex, NodeBufferSize / FastStructure.SizeOf <T>()); base.WriteArray <T>(source, startIndex, count, node->Offset); node->AmountWritten = count * FastStructure.SizeOf <T>(); // Writing is complete, make node readable PostNode(node); return(count); }
/// <summary> /// Reads the next available node for reading into the specified structure array. /// </summary> /// <typeparam name="T">The structure type to be read.</typeparam> /// <param name="destination">Reference to the buffer.</param> /// <param name="startIndex">The index within the destination to start writing to.</param> /// <param name="timeout">The maximum number of milliseconds to wait for a node to become available for reading. Defaults to 1000 (ms).</param> /// <returns>The number of elements read into destination.</returns> /// <remarks><![CDATA[ /// The maximum number of elements that can be read can be determined by the following formula: /// /// ```C# /// Math.Min(destination.Length - startIndex, Node.AmountWritten / FastStructure.SizeOf<T>()) /// ``` /// ]]></remarks> public virtual int Read <T>(T[] destination, int startIndex = 0, int timeout = 1000) where T : struct { Node *node = GetNodeForReading(timeout); if (node == null) { return(0); } // Copy the data using the FastStructure class (much faster than the MemoryMappedViewAccessor ReadArray<T> method) int count = Math.Min(destination.Length - startIndex, node->AmountWritten / FastStructure.SizeOf <T>()); base.ReadArray <T>(destination, startIndex, count, node->Offset); // Return the node for further writing ReturnNode(node); return(count); }