public String EndReadLine(IAsyncResult ar)
{
AsyncReadLineRequest lRequest = (AsyncReadLineRequest)ar;
try
{
if (lRequest.State == AsyncReadLineState.MaxLineLengthReached)
{
TriggerAsyncDisconnect();
Disconnect();
throw new ConnectionClosedException("Size limit for ReadLine() was exceeded.");
}
Byte[] lBuffer = lRequest.Data.ToArray();
if (lRequest.Data.Length > 0 && lBuffer[lRequest.Data.Length - 1] == 13)
{
return(Encoding.GetString(lBuffer, 0, (Int32)lRequest.Data.Length - 1)); // on the rare occasion that the split is between the #13 and the #10
}
return(Encoding.GetString(lBuffer, 0, (Int32)lRequest.Data.Length));
}
finally
{
lRequest.Data.Close();
}
}
public IAsyncResult BeginReadLine(AsyncCallback callback, Object state)
{
if (!BufferedAsync)
throw new Exception("BufferedAsync must be true to use BeginReadLine");
AsyncReadLineRequest lRequest;
if (fBuffer != null)
{
for (Int32 i = fBufferStart; i < fBufferEnd; i++)
{
if (fBuffer[i] == 10)
{
Int32 lLen = i - fBufferStart;
if (lLen > 0 && fBuffer[i - 1] == 13)
lLen--;
lRequest = new AsyncReadLineRequest(state, callback);
lRequest.Data.Write(fBuffer, fBufferStart, lLen);
lRequest.State = AsyncReadLineState.SyncDone;
fBufferStart = i + 1;
callback(lRequest);
return lRequest;
}
}
}
lRequest = new AsyncReadLineRequest(state, callback);
if (fBuffer != null)
lRequest.Data.Write(fBuffer, fBufferStart, fBufferEnd - fBufferStart);
else
fBuffer = new Byte[BUFFER_SIZE];
fBufferStart = 0;
fBufferEnd = 0;
try
{
IntBeginRead(fBuffer, 0, fBuffer.Length, new AsyncCallback(IntReadLineCallback), lRequest);
}
catch (ObjectDisposedException) // disconnect from this side
{
TriggerAsyncDisconnect();
throw;
}
catch (SocketException) // disconnect
{
TriggerAsyncDisconnect();
throw;
}
return lRequest;
}
private void IntReadLineCallback(IAsyncResult ar)
{
AsyncReadLineRequest lRequest = (AsyncReadLineRequest)ar.AsyncState;
try
{
Int32 lCount = IntEndRead(ar);
if (lCount == 0)
{
TriggerAsyncDisconnect();
return;
}
for (Int32 i = 0; i < lCount; i++)
{
if (fBuffer[i] != 10)
{
continue;
}
if (i > 0 && fBuffer[i - 1] == 13)
{
lRequest.Data.Write(fBuffer, 0, i - 1);
}
else
{
lRequest.Data.Write(fBuffer, 0, i);
}
fBufferStart = i + 1;
fBufferEnd = lCount;
lRequest.State = AsyncReadLineState.Done;
lRequest.Callback(lRequest);
return;
}
if (this.MaxLineLengthEnabled && (lRequest.Data.Length > this.MaxLineLength))
{
fBufferStart = 0;
fBufferEnd = lCount;
lRequest.State = AsyncReadLineState.MaxLineLengthReached;
lRequest.Callback(lRequest);
return;
}
lRequest.Data.Write(fBuffer, 0, lCount);
TriggerAsyncHaveIncompleteData();
IntBeginRead(fBuffer, 0, fBuffer.Length, IntReadLineCallback, lRequest);
}
catch (ObjectDisposedException) // disconnect from this side
{
TriggerAsyncDisconnect();
}
catch (SocketException) // disconnect
{
TriggerAsyncDisconnect();
}
catch (ArgumentException)
{
}
catch (Exception) // different platforms throw different exceptions
{
TriggerAsyncDisconnect();
}
}
public IAsyncResult BeginReadLine(AsyncCallback callback, Object state)
{
if (!BufferedAsync)
{
throw new Exception("BufferedAsync must be true to use BeginReadLine");
}
AsyncReadLineRequest lRequest;
if (fBuffer != null)
{
for (Int32 i = fBufferStart; i < fBufferEnd; i++)
{
if (fBuffer[i] != 10)
{
continue;
}
Int32 lLen = i - fBufferStart;
if (lLen > 0 && fBuffer[i - 1] == 13)
{
lLen--;
}
lRequest = new AsyncReadLineRequest(state, callback);
lRequest.Data.Write(fBuffer, fBufferStart, lLen);
lRequest.State = AsyncReadLineState.SyncDone;
fBufferStart = i + 1;
callback(lRequest);
return(lRequest);
}
}
lRequest = new AsyncReadLineRequest(state, callback);
if (fBuffer != null)
{
lRequest.Data.Write(fBuffer, fBufferStart, fBufferEnd - fBufferStart);
}
else
{
fBuffer = new Byte[BUFFER_SIZE];
}
fBufferStart = 0;
fBufferEnd = 0;
try
{
IntBeginRead(fBuffer, 0, fBuffer.Length, IntReadLineCallback, lRequest);
}
catch (ObjectDisposedException) // disconnect from this side
{
TriggerAsyncDisconnect();
throw;
}
catch (SocketException) // disconnect
{
TriggerAsyncDisconnect();
throw;
}
return(lRequest);
}