Exemplo n.º 1
0
 /// <summary>
 /// Adds new message to the queue. This method is thread-safe.
 /// </summary>
 /// <param name="writingDelegate">Custom delegate to write using message's stream.</param>
 /// <param name="length">
 /// Specifies how much memory will be allocated for new message.
 /// Delegate will receive a stream with capacity limited by this parameter, but it is not forced to use all allocated space.
 /// </param>
 /// <param name="timeout">Operation timeout.</param>
 /// <returns>
 /// ChannelStateOperationResult with ChannelState and OperationStatus.Completed, OperationStatus.Timeout, OperationStatus.Cancelled,
 /// OperationStatus.DelegateFailed, OperationStatus.RequestedLengthIsGreaterThanLogicalAddressSpace,
 /// OperationStatus.RequestedLengthIsGreaterThanVirtualAddressSpace or OperationStatus.OutOfSpace
 /// </returns>
 public IAsyncOperation <ChannelStateOperationResult> WriteAsync(AsynchronousWritingDelegate writingDelegate, long length, TimeSpan timeout)
 {
     return(AsyncInfo.Run(async cancellationToken =>
     {
         return new ChannelStateOperationResult(await _internal.WriteAsync(DelegateHelper.Wrap(writingDelegate), null, length, cancellationToken, timeout));
     }));
 }
Exemplo n.º 2
0
        public static Func <MemoryMappedViewStream, object, CancellationToken, Task <Internal.OperationStatus> > Wrap(AsynchronousWritingDelegate externalDelegate)
        {
            return(async(MemoryMappedViewStream stream, object parameter, CancellationToken cancellationToken) =>
            {
                if (externalDelegate != null)
                {
                    await externalDelegate.Invoke(stream.AsRandomAccessStream()).AsTask(cancellationToken);
                }

                return Internal.OperationStatus.Completed;
            });
        }