public virtual byte[] Read(int count)
{
byte[] frameBytes = new byte[count];
int numBytesRead = 0;
while (numBytesRead != count)
{
numBytesRead += StreamResource.Read(frameBytes, numBytesRead, count - numBytesRead);
}
return(frameBytes);
}
internal override void Write(IModbusMessage message)
{
DiscardInBuffer();
byte[] frame = BuildMessageFrame(message);
if (WriteMessage != null)
{
WriteMessage(frame);
}
Debug.WriteLine($"TX: {string.Join(", ", frame)}");
StreamResource.Write(frame, 0, frame.Length);
}
public virtual async Task <byte[]> ReadAsync(int count)
{
byte[] frameBytes = new byte[count];
int numBytesRead = 0;
while (numBytesRead != count)
{
numBytesRead += await StreamResource.ReadAsync(frameBytes, numBytesRead, count - numBytesRead);
}
return(frameBytes);
}
public async Task ReadFileResource()
{
var linesResource = StreamResource
.FromFile("../../../test_data/test_lines_1.txt", FileMode.Open)
.SelectAsync(GetLines);
var countResource = linesResource.Select(lines => lines.Count);
var firstLineResource = linesResource.Select(lines => lines.First());
var count = await countResource.UnsafeGetAsync();
Assert.Equal(10, count);
var line1 = await firstLineResource.UnsafeGetAsync();
Assert.Equal("line1", line1);
}
public virtual byte[] Read(int count)
{
byte[] frameBytes = new byte[count];
int numBytesRead = 0;
while ((numBytesRead != count) && (StreamResource.IsOpen))
{
numBytesRead += StreamResource.Read(frameBytes, numBytesRead, count - numBytesRead);
if (numBytesRead == 0)
{
if (StreamResource is TcpClientAdapter)
{
throw new IOException("There is no connection on TCP.");
}
}
}
return(frameBytes);
}
internal void DiscardInBuffer()
{
StreamResource.DiscardInBuffer();
}
internal override void Write(IModbusMessage message)
{
byte[] frame = BuildMessageFrame(message);
Debug.WriteLine($"TX: {string.Join(", ", frame)}");
StreamResource.Write(frame, 0, frame.Length);
}
