public async Task OnKeyUp(KeyPress keyPress)
{
lock (this)
{
var key = keyPress.Key;
if (keyPress.Id == _lastKeyPressId)
{
Debug.WriteLine("Ignoring duplicate keypress");
return;
}
_lastKeyPressId = keyPress.Id;
Debug.WriteLine("OnKeyUp");
byte keyCode = 0x00;
if (key.Length == 1)
{
keyCode = (byte)key[0];
}
_eventBuffer.Write(
new KeyboardEvent(
(byte)(StatusBits.AsciiAvailable | StatusBits.KeyUp | StatusBits.ScanCodeAvailable),
keyCode,
keyCode));
KeyUp?.Invoke(this, keyCode);
RequestInterrupt?.Invoke(this, null);
}
await Task.Delay(0);
}
public void NonFullFifoDoesntReturnIsFull()
{
var fifo = new FifoBuffer <int>(5);
Assert.IsTrue(fifo.Write(1));
Assert.IsTrue(fifo.Write(2));
Assert.IsTrue(fifo.Write(3));
Assert.IsTrue(fifo.Write(4));
Assert.IsFalse(fifo.IsFull());
}
public void FullFifoReturnIsFull()
{
var fifo = new FifoBuffer <int>(5);
Assert.IsTrue(fifo.Write(1));
Assert.IsTrue(fifo.Write(2));
Assert.IsTrue(fifo.Write(3));
Assert.IsTrue(fifo.Write(4));
Assert.IsTrue(fifo.Write(5));
Assert.IsTrue(fifo.IsFull());
}
public void NonEmptyFifoDoesNotReturnIsEmpty()
{
var fifo = new FifoBuffer <int>(5);
fifo.Write(99);
Assert.IsFalse(fifo.IsEmpty());
}
public void ReadOneValueEmptiesFifo()
{
var fifo = new FifoBuffer <int>(5);
fifo.Write(99);
int result;
Assert.IsTrue(fifo.Read(out result));
Assert.IsFalse(fifo.Read(out result));
}
public void PeekNonEmptyFifoReturnsTrue()
{
var fifo = new FifoBuffer <int>(5);
fifo.Write(99);
int result;
Assert.IsTrue(fifo.Peek(out result));
Assert.AreEqual(99, result);
}
private void OnReadComplete(IAsyncResult ar)
{
if (!_isInitialized || _stream == null)
{
OnRead();
return;
}
try
{
int bytesRead = _stream.EndRead(ar);
int totalBytesRead = 0;
if (bytesRead == 0)
{
_isReadFailure = true;
OnRead();
return;
}
while (bytesRead > 0)
{
totalBytesRead += bytesRead;
_fifoToDevice.Write(_buffer, 0, bytesRead);
bytesRead = Math.Min(this.AvailableBytes, _buffer.Length);
if (bytesRead > 0)
{
bytesRead = _stream.Read(_buffer, 0, bytesRead);
}
}
if (totalBytesRead > 0)
{
OnRead();
}
_asyncResult = null;
StartRead();
}
catch
{
_isReadFailure = true;
OnRead();
}
}
public void CantOverflowFifo()
{
var fifo = new FifoBuffer <int>(5);
Assert.IsTrue(fifo.Write(1));
Assert.IsTrue(fifo.Write(2));
Assert.IsTrue(fifo.Write(3));
Assert.IsTrue(fifo.Write(4));
Assert.IsTrue(fifo.Write(5));
Assert.IsFalse(fifo.Write(6));
}
public override void Write(byte[] buffer, int offset, int count)
{
_fifoWrite.Write(buffer, offset, count);
}