| public BeginReceive ( byte buffer, int offset, int size, SocketFlags socketFlags, AsyncCallback callback, object state ) : IAsyncResult | ||
| buffer | byte | |
| offset | int | |
| size | int | |
| socketFlags | SocketFlags | |
| callback | AsyncCallback | |
| state | object | |
| return | IAsyncResult | |
private void ReceiveCallback(IAsyncResult ar)
{
int length = (int)ar.AsyncState;
try
{
var bytesRead = _socket.EndReceive(ar);
if (bytesRead == 0)
{
OnFinish(length);
return;
}
length += bytesRead;
int i;
while ((i = IndexOf(_lineBuffer, _bufferIndex, length, _delimiterBytes, _delimiterSearchOffsetTable,
_delimiterSearchCharTable)) != -1)
{
var decodeLen = i - _bufferIndex;
string line = _encoding.GetString(_lineBuffer, _bufferIndex, decodeLen);
_bufferIndex = i + _delimiterBytes.Length;
length -= decodeLen;
length -= _delimiterBytes.Length;
var stop = _onLineRead(line, _state);
if (stop)
{
OnFinish(length);
return;
}
}
if (length == _lineBuffer.Length)
{
OnException(new IndexOutOfRangeException("LineBuffer full! Try increace maxLineBytes!"));
OnFinish(length);
return;
}
if (_bufferIndex > 0)
{
Buffer.BlockCopy(_lineBuffer, _bufferIndex, _lineBuffer, 0, length);
_bufferIndex = 0;
}
_socket.BeginReceive(_lineBuffer, length, _lineBuffer.Length - length, 0, ReceiveCallback, length);
}
catch (Exception ex)
{
OnException(ex);
OnFinish(length);
}
}
public LineReader(WrappedSocket socket, Func<string, object, bool> onLineRead, Action<Exception, object> onException,
Action<byte[], int, int, object> onFinish, Encoding encoding, string delimiter, int maxLineBytes, object state)
{
if (socket == null)
{
throw new ArgumentNullException(nameof(socket));
}
if (onLineRead == null)
{
throw new ArgumentNullException(nameof(onLineRead));
}
if (encoding == null)
{
throw new ArgumentNullException(nameof(encoding));
}
if (delimiter == null)
{
throw new ArgumentNullException(nameof(delimiter));
}
_socket = socket;
_onLineRead = onLineRead;
_onException = onException;
_onFinish = onFinish;
_encoding = encoding;
// _delimiter = delimiter;
_state = state;
// decode delimiter
_delimiterBytes = encoding.GetBytes(delimiter);
if (_delimiterBytes.Length == 0)
{
throw new ArgumentException("Too short!", nameof(delimiter));
}
if (maxLineBytes < _delimiterBytes.Length)
{
throw new ArgumentException("Too small!", nameof(maxLineBytes));
}
_delimiterSearchCharTable = MakeCharTable(_delimiterBytes);
_delimiterSearchOffsetTable = MakeOffsetTable(_delimiterBytes);
_lineBuffer = new byte[maxLineBytes];
// start reading
socket.BeginReceive(_lineBuffer, 0, maxLineBytes, 0, ReceiveCallback, 0);
}
public LineReader(WrappedSocket socket, Func <string, object, bool> onLineRead, Action <Exception, object> onException,
Action <byte[], int, int, object> onFinish, Encoding encoding, string delimiter, int maxLineBytes, object state)
{
if (socket == null)
{
throw new ArgumentNullException(nameof(socket));
}
if (onLineRead == null)
{
throw new ArgumentNullException(nameof(onLineRead));
}
if (encoding == null)
{
throw new ArgumentNullException(nameof(encoding));
}
if (delimiter == null)
{
throw new ArgumentNullException(nameof(delimiter));
}
_socket = socket;
_onLineRead = onLineRead;
_onException = onException;
_onFinish = onFinish;
_encoding = encoding;
// _delimiter = delimiter;
_state = state;
// decode delimiter
_delimiterBytes = encoding.GetBytes(delimiter);
if (_delimiterBytes.Length == 0)
{
throw new ArgumentException("Too short!", nameof(delimiter));
}
if (maxLineBytes < _delimiterBytes.Length)
{
throw new ArgumentException("Too small!", nameof(maxLineBytes));
}
_delimiterSearchCharTable = MakeCharTable(_delimiterBytes);
_delimiterSearchOffsetTable = MakeOffsetTable(_delimiterBytes);
_lineBuffer = new byte[maxLineBytes];
// start reading
socket.BeginReceive(_lineBuffer, 0, maxLineBytes, 0, ReceiveCallback, 0);
}
private void NewPackageRecv()
{
int i;
while ((i = _delimiterSearch.SearchIn(_lineBuffer, _bufferDataIndex, _bufferDataLength)) != -1)
{
var decodeLen = i - _bufferDataIndex;
string line = _encoding.GetString(_lineBuffer, _bufferDataIndex, decodeLen);
_bufferDataIndex = i + _delimiterBytes.Length;
_bufferDataLength -= decodeLen;
_bufferDataLength -= _delimiterBytes.Length;
var stop = _onLineRead(line, _state);
if (stop)
{
OnFinish();
return;
}
}
if (_bufferDataLength == _lineBuffer.Length)
{
OnException(new IndexOutOfRangeException("LineBuffer full! Try increace maxLineBytes!"));
OnFinish();
return;
}
if (_bufferDataIndex > 0)
{
Buffer.BlockCopy(_lineBuffer, _bufferDataIndex, _lineBuffer, 0, _bufferDataLength);
_bufferDataIndex = 0;
}
_socket.BeginReceive(_lineBuffer, _bufferDataLength, _lineBuffer.Length - _bufferDataLength, 0, ReceiveCallback, _bufferDataLength);
}
public LineReader(byte[] buffer, WrappedSocket socket, byte[] firstPackge, int index, int length,
Func <string, object, bool> onLineRead, Action <Exception, object> onException,
Action <byte[], int, int, object> onFinish,
Encoding encoding, string delimiter,
object state)
{
if (buffer == null)
{
throw new ArgumentNullException(nameof(buffer));
}
if (socket == null)
{
throw new ArgumentNullException(nameof(socket));
}
if (onLineRead == null)
{
throw new ArgumentNullException(nameof(onLineRead));
}
if (encoding == null)
{
throw new ArgumentNullException(nameof(encoding));
}
if (delimiter == null)
{
throw new ArgumentNullException(nameof(delimiter));
}
if (buffer.Length < length)
{
throw new ArgumentException("Line buffer length can't less than first package length!", nameof(buffer));
}
if (length > 0)
{
if (firstPackge == null)
{
throw new ArgumentNullException(nameof(firstPackge));
}
}
_socket = socket;
_onLineRead = onLineRead;
_onException = onException;
_onFinish = onFinish;
_encoding = encoding;
// _delimiter = delimiter;
_state = state;
// decode delimiter
_delimiterBytes = encoding.GetBytes(delimiter);
if (_delimiterBytes.Length == 0)
{
throw new ArgumentException("Too short!", nameof(delimiter));
}
if (buffer.Length < _delimiterBytes.Length)
{
throw new ArgumentException("Too small!", nameof(buffer));
}
_delimiterSearch = new ByteSearch.SearchTarget(_delimiterBytes);
_lineBuffer = buffer;
if (length > 0)
{
// process first package
if (buffer == firstPackge)
{
_bufferDataIndex = index;
}
else
{
Array.Copy(firstPackge, index, _lineBuffer, 0, length);
}
_bufferDataLength = length;
try
{
NewPackageRecv();
}
catch (Exception ex)
{
OnException(ex);
OnFinish();
}
}
else
{
// start reading
socket.BeginReceive(_lineBuffer, 0, _lineBuffer.Length, 0, ReceiveCallback, 0);
}
}
public LineReader(byte[] buffer, WrappedSocket socket, byte[] firstPackge, int index, int length,
Func<string, object, bool> onLineRead, Action<Exception, object> onException,
Action<byte[], int, int, object> onFinish,
Encoding encoding, string delimiter,
object state)
{
if (buffer == null)
{
throw new ArgumentNullException(nameof(buffer));
}
if (socket == null)
{
throw new ArgumentNullException(nameof(socket));
}
if (onLineRead == null)
{
throw new ArgumentNullException(nameof(onLineRead));
}
if (encoding == null)
{
throw new ArgumentNullException(nameof(encoding));
}
if (delimiter == null)
{
throw new ArgumentNullException(nameof(delimiter));
}
if (buffer.Length < length)
{
throw new ArgumentException("Line buffer length can't less than first package length!", nameof(buffer));
}
if (length > 0)
{
if (firstPackge == null)
{
throw new ArgumentNullException(nameof(firstPackge));
}
}
_socket = socket;
_onLineRead = onLineRead;
_onException = onException;
_onFinish = onFinish;
_encoding = encoding;
// _delimiter = delimiter;
_state = state;
// decode delimiter
_delimiterBytes = encoding.GetBytes(delimiter);
if (_delimiterBytes.Length == 0)
{
throw new ArgumentException("Too short!", nameof(delimiter));
}
if (buffer.Length < _delimiterBytes.Length)
{
throw new ArgumentException("Too small!", nameof(buffer));
}
_delimiterSearch = new ByteSearch.SearchTarget(_delimiterBytes);
_lineBuffer = buffer;
if (length > 0)
{
// process first package
if (buffer == firstPackge)
{
_bufferDataIndex = index;
}
else
{
Array.Copy(firstPackge, index, _lineBuffer, 0, length);
}
_bufferDataLength = length;
try
{
NewPackageRecv();
}
catch (Exception ex)
{
OnException(ex);
OnFinish();
}
}
else
{
// start reading
socket.BeginReceive(_lineBuffer, 0, _lineBuffer.Length, 0, ReceiveCallback, 0);
}
}
