public void Clear()
{
// Zero all bytes
Array.Clear(mIoBuffer, 0, mIoBuffer.Length);
mIoStatus = SendReceiveStatus.IO_PENDING;
}
//
// Summary:
// Reads numBytes into the data buffer at the specified offset.
//
// Parameters:
// data:
// The input data buffer.
//
// offset:
// The zero based offset in the data buffer to write the data read.
//
// numBytes:
// The number of bytes to read.
//
// Returns:
// The receive status, IO_SUCCESS if all bytes were received
//
public SendReceiveStatus receiveBytes(byte[] data, int offset, int numBytes)
{
SendReceiveStatus status = SendReceiveStatus.IO_SUCCESS;
int numRead = 0;
int numToRead = numBytes;
try
{
//
// Exceptions:
// System.ArgumentNullException:
// The buffer passed is null.
//
// System.InvalidOperationException:
// The specified port is not open.
//
// System.ArgumentOutOfRangeException:
// The offset or count parameters are outside a valid region of the buffer being
// passed. Either offset or count is less than zero.
//
// System.ArgumentException:
// offset plus count is greater than the length of the buffer.
//
// System.TimeoutException:
// No bytes were available to read.
//
do
{
numRead += Read(data, offset + numRead, numToRead);
numToRead = numBytes - numRead;
} while (numRead < numBytes);
}
catch (System.ArgumentNullException)
{
status = SendReceiveStatus.IO_NULL_BUFFER;
}
catch (System.InvalidOperationException)
{
status = SendReceiveStatus.IO_PORT_ERROR;
}
catch (System.ArgumentOutOfRangeException)
{
status = SendReceiveStatus.IO_OUT_OF_RANGE;
}
catch (System.ArgumentException)
{
status = SendReceiveStatus.IO_OUT_OF_RANGE;
}
catch (System.TimeoutException)
{
status = SendReceiveStatus.IO_TIMEOUT;
}
catch (Exception)
{
status = SendReceiveStatus.IO_OTHER_EXCEPTION;
}
return(status);
}
//----- ISendReceive Implementation -----
//
// Summary:
// Writes numBytes from the data buffer starting at the specified offset.
//
// Parameters:
// data:
// The output data buffer.
//
// offset:
// The zero-based offset in the data buffer to start copying data.
//
// numBytes:
// The number of bytes to be written.
//
// Returns:
// The send status, IO_SUCCESS if all bytes were sent
//
public SendReceiveStatus sendBytes(byte[] data, int offset, int numBytes)
{
SendReceiveStatus status = SendReceiveStatus.IO_SUCCESS;
int numSent = 0;
try
{
// Exceptions:
// System.ArgumentNullException:
// The buffer passed is null.
//
// System.InvalidOperationException:
// The port is not open.
//
// System.ArgumentOutOfRangeException:
// The offset or numBytes parameters are outside a valid region of the buffer being
// passed. Either offset or numBytes is less than zero.
//
// System.ArgumentException:
// offset plus numBytes is greater than the length of the buffer.
//
// System.ServiceProcess.TimeoutException:
// The operation did not complete before the time-out period ended.
outPipe.Write(data, offset, numBytes);
numSent = numBytes; // the entire numBytes is sent. If it cannot be sent an exception is thrown.
}
catch (System.ArgumentNullException)
{
status = SendReceiveStatus.IO_NULL_BUFFER;
}
catch (System.InvalidOperationException)
{
status = SendReceiveStatus.IO_PORT_ERROR;
}
catch (System.ArgumentOutOfRangeException)
{
status = SendReceiveStatus.IO_OUT_OF_RANGE;
}
catch (System.ArgumentException)
{
status = SendReceiveStatus.IO_OUT_OF_RANGE;
}
catch (System.TimeoutException)
{
status = SendReceiveStatus.IO_TIMEOUT;
}
catch (USBException)
{
status = SendReceiveStatus.IO_PIPE_ERROR;
}
catch (Exception)
{
status = SendReceiveStatus.IO_OTHER_EXCEPTION;
}
return(status);
}
//----- ISendReceive Implementation -----
//
// Summary:
// Writes numBytes from the data buffer starting at the specified offset.
//
// Parameters:
// data:
// The output data buffer.
//
// offset:
// The zero-based offset in the data buffer to start copying data.
//
// numBytes:
// The number of bytes to be written.
//
// Returns:
// The send status, IO_SUCCESS if all bytes were sent
//
public SendReceiveStatus sendBytes(byte[] data, int offset, int numBytes)
{
SendReceiveStatus status = SendReceiveStatus.IO_SUCCESS;
int numSent = 0;
try
{
// Exceptions:
// System.ArgumentNullException:
// buffer is null.
//
// System.ArgumentOutOfRangeException:
// offset is less than 0.-or- offset is greater than the length of buffer.-or-
// size is less than 0.-or- size is greater than the length of buffer minus
// the value of the offset parameter.
//
// System.Net.Sockets.SocketException:
// socketFlags is not a valid combination of values.-or- An operating system
// error occurs while accessing the System.Net.Sockets.Socket. See the Remarks
// section for more information.
//
// System.ObjectDisposedException:
// The System.Net.Sockets.Socket has been closed.
numSent = Send(data, offset, numBytes, SocketFlags.None);
if (numSent != numBytes)
{
status = SendReceiveStatus.IO_INSUFFICIENT_DATA;
}
}
catch (System.ArgumentNullException)
{
status = SendReceiveStatus.IO_NULL_BUFFER;
}
catch (System.ObjectDisposedException)
{
status = SendReceiveStatus.IO_PORT_ERROR;
}
catch (System.ArgumentOutOfRangeException)
{
status = SendReceiveStatus.IO_OUT_OF_RANGE;
}
catch (System.Net.Sockets.SocketException)
{
status = SendReceiveStatus.IO_PORT_ERROR;
}
catch (System.TimeoutException)
{
status = SendReceiveStatus.IO_TIMEOUT;
}
catch (Exception)
{
status = SendReceiveStatus.IO_OTHER_EXCEPTION;
}
return(status);
}
//----- Initialization Helpers -----
public void Init()
{
// Zero all bytes
Array.Clear(mIoBuffer, 0, mIoBuffer.Length);
StartByte0 = 0xC1;
StartByte1 = 0xC0;
ProtocolVersion = 0x1100;
BytesRemaining = 20;
SetFooter();
mIoStatus = SendReceiveStatus.IO_PENDING;
}
public SendReceiveResult(SendReceiveStatus status, IEnumerable<string> lines)
{
Status = status;
Lines = lines;
}
internal NoteSendReceiveStatusChangedEventArgs(SendReceiveStatus newStatus, SendReceiveStatus oldStatus)
{
_NewStatus = newStatus;
_OldStatus = oldStatus;
}
public OBPBuffer(OBPBuffer aBufferToClone)
{
mIoStatus = aBufferToClone.mIoStatus;
mIoBuffer = new byte[aBufferToClone.mIoBuffer.Length];
aBufferToClone.mIoBuffer.CopyTo(this.mIoBuffer, 0);
}
internal NoteSendReceiveStatusChangedEventArgs(SendReceiveStatus newStatus, SendReceiveStatus oldStatus)
{
_NewStatus = newStatus;
_OldStatus = oldStatus;
}