public async Task SendAsync(KernelCommand kernelCommand, CancellationToken cancellationToken)
{
cancellationToken.ThrowIfCancellationRequested();
_sender.WriteMessage(KernelCommandEnvelope.Serialize(KernelCommandEnvelope.Create(kernelCommand)));
await _sender.FlushAsync(cancellationToken);
}
public static async Task WriteMessageAsync(this PipeStream stream, string message)
{
var responseBytes = Encoding.UTF8.GetBytes(message);
await stream.WriteAsync(responseBytes, 0, responseBytes.Length).ConfigureAwait(false);
await stream.FlushAsync();
stream.WaitForPipeDrain();
}
public async Task SetStatus(bool status, CancellationToken ct)
{
Buffer[0] = CounterCommands.SetStatus;
Buffer[1] = status ? (byte)1 : (byte)0;
await PipeStream.WriteAsync(Buffer, offset : 0, count : 2, ct).ConfigureAwait(false);
await PipeStream.FlushAsync(ct).ConfigureAwait(false);
}
public async Task WriteObject(TValue value)
{
var data = Serialize(value);
await WriteLengthAsync(data.Length);
await WriteObjectAsync(data);
await baseStream.FlushAsync();
}
/// <summary>
/// Writing asynchronicly binary data to stream.
/// </summary>
/// <param name="stream">Target stream.</param>
/// <param name="data">Binary data that would be sent to stream.</param>
/// <returns>Asynchronous operation of data writing.</returns>
public static async Task StreamWriterAsync(PipeStream stream, byte[] data)
{
// Write header.
await stream.WriteAsync(BitConverter.GetBytes(data.Length), 0, 4);
// Write data.
await stream.WriteAsync(data, 0, data.Length);
// Send data to device.
await stream.FlushAsync();
}
private static void WriteCommandPacket(PipeStream channel, byte[] buffer)
{
int l = buffer.Length;
byte[] lengthBuffer = new byte[4] {
(byte)l, (byte)(l >> 8), (byte)(l >> 16), (byte)(l >> 24)
};
channel.Write(lengthBuffer, 0, lengthBuffer.Length);
channel.Write(buffer, 0, buffer.Length);
channel.FlushAsync();
}
/// <inheritdoc />
public async Task WriteAsync(byte[] bytes, CancellationToken cancellationToken = default(CancellationToken))
{
int offset = 0;
int bytesLeft = bytes.Length;
while (bytesLeft > 0)
{
int write = bytesLeft > Constants.BufferSize ? Constants.BufferSize : bytesLeft;
await _stream.WriteAsync(bytes, offset, write, cancellationToken);
bytesLeft -= write;
offset += write;
}
await _stream.FlushAsync(cancellationToken);
}
public static async Task WriteMessageToPipe(PipeStream pipe, byte[] data)
{
var header = BitConverter.GetBytes(data.Length);
var wrappedMessage = header.Concat(data).ToArray();
//pipe.Write(wrappedMessage, 0, wrappedMessage.Length);
//lock (pipe)
//{
// pipe.Write(wrappedMessage, 0, wrappedMessage.Length);
// pipe.Flush();
//}
await pipe.WriteAsync(wrappedMessage, 0, wrappedMessage.Length);
await pipe.FlushAsync();
}
public async Task <bool> GetStatus(CancellationToken ct)
{
Buffer[0] = CounterCommands.GetStatus;
await PipeStream.WriteAsync(Buffer, offset : 0, count : 1, ct).ConfigureAwait(false);
await PipeStream.FlushAsync(ct).ConfigureAwait(false);
await PipeStream.ReadAsync(Buffer, offset : 0, count : 2, ct).ConfigureAwait(false);
if (Buffer[0] != CounterCommands.GetStatus)
{
throw new InvalidOperationException($"Expected command {CounterCommands.GetStatus} but received {Buffer[0]}.");
}
bool status = Buffer[1] > 0;
return(status);
}
/// <summary>
/// Writing asynchronicly binary data to stream.
/// </summary>
/// <param name="stream">Target stream.</param>
/// <param name="nonBinaryData">Non binary object that would be shared via stream.</param>
/// <returns>Asynchronous operation of data writing.</returns>
public static async Task StreamWriterAsync(PipeStream stream, object nonBinaryData)
{
//var bs = BinaryHandler.ToMemoryStream(nonBinaryData);
//// Write header.
//await stream.WriteAsync(BitConverter.GetBytes(bs.Length), 0, 4);
//await bs.CopyToAsync(stream);
//await stream.FlushAsync();
// Convert data to binary format.
byte[] data = BinaryHandler.ToByteArray(nonBinaryData);
// Write header.
await stream.WriteAsync(BitConverter.GetBytes(data.Length), 0, 4);
//// Write data.
await stream.WriteAsync(data, 0, data.Length);
// Send data to device.
await stream.FlushAsync();
}
public override Task FlushAsync(CancellationToken cancellationToken) => _underlying.FlushAsync(cancellationToken);
