private async Task <bool> ReadData(int receive)
{
byte[] bytes = new byte[receive];
_state.AppendRead(receive);
if (_state.Read > _receivingMessageLength)
{
int extraRead = _state.Read - _receivingMessageLength;
var bytes2 = new byte[extraRead];
Array.Copy(_state.Buffer, receive - extraRead, bytes2, 0, extraRead);
bytes = new byte[receive - extraRead];
Array.Copy(_state.Buffer, 0, bytes, 0, receive - extraRead);
_state.SubtractRead(extraRead);
_state.ChangeBuffer(bytes2);
_state.Flag = -3;
}
else if (_state.Read == _receivingMessageLength)
{
_state.Flag = -2;
Array.Copy(_state.Buffer, 0, bytes, 0, bytes.Length);
_state.ChangeBuffer(new byte[0]);
}
else
{
if (_state.Buffer.Length == _state.BufferSize)
{
bytes = _state.Buffer;
}
else
{
bytes = new byte[_state.Buffer.Length];
Array.Copy(_state.Buffer, 0, bytes, 0, bytes.Length);
}
_state.ChangeBuffer(new byte[0]);
}
if (MessageType == MessageType.File || MessageType == MessageType.Folder)
{
if (_socket.AllowReceivingFiles)
{
var file = Encoding.UTF8.GetString(Header);
file = GetTempPath(file);
CreateDeleteFile(file);
if (_partNumber == 0)
{
_socket.RaiseFileReceiver(_state, _partNumber, _totalParts, file, MessageState.Beginning);
}
using (BinaryWriter writer = new BinaryWriter(File.Open(file, FileMode.Append)))
{
writer.Write(bytes, 0, bytes.Length);
writer.Close();
}
}
}
else
{
_state.AppendBytes(bytes);
}
if (_state.Flag == -2)
{
bytes = null;
MessageHasBeenReceived();
_state.Reset();
}
if (_state.Flag == -3)
{
bytes = null;
MessageHasBeenReceived();
_state.Reset();
return(await ReadBytesAndBuildMessage(_state.Buffer.Length));
}
return(true);
//_socket.Receive(_state, 0);
}
//Returns true if there is more data to read.
private bool ReadData(int receive)
{
if (receive < 0)
{
return(false);
}
byte[] bytes = new byte[receive];
_readBytes += receive;
if (_readBytes > _receivingMessageLength)
{
int extraRead = _readBytes - _receivingMessageLength;
var bytes2 = new byte[extraRead];
Array.Copy(_state.Buffer, receive - extraRead, bytes2, 0, extraRead);
bytes = new byte[receive - extraRead];
Array.Copy(_state.Buffer, 0, bytes, 0, receive - extraRead);
_readBytes -= extraRead;
// _state.SubtractRead(extraRead);
_state.ChangeBuffer(bytes2);
_state.Flag = MessageFlag.MessageReceivedExtraData;
}
else if (_readBytes == _receivingMessageLength)
{
_state.Flag = MessageFlag.MessageReceivedNoExtraData;
bytes = new byte[receive];
Array.Copy(_state.Buffer, 0, bytes, 0, bytes.Length);
_state.ChangeBuffer(new byte[0]);
}
else
{
bytes = new byte[receive];
Array.Copy(_state.Buffer, 0, bytes, 0, bytes.Length);
_state.ChangeBuffer(new byte[0]);
}
if (MessageType == MessageType.File || MessageType == MessageType.Folder)
{
if (_socket.AllowReceivingFiles)
{
var file = Encoding.UTF8.GetString(Header);
file = GetTempPath(file);
CreateDeleteFile(file);
if (_partNumber == 0)
{
_socket.RaiseFileReceiver(_state, _partNumber, _totalParts, file, MessageState.Beginning);
}
using (BinaryWriter writer = new BinaryWriter(File.Open(file, FileMode.Append)))
{
writer.Write(bytes, 0, bytes.Length);
writer.Close();
}
}
}
else
{
var temp = new byte[_receivedBytes.Length + bytes.Length];
_receivedBytes.CopyTo(temp, 0);
bytes.CopyTo(temp, _receivedBytes.Length);
_receivedBytes = temp;
// _state.AppendBytes(bytes);
}
if (_state.Flag == MessageFlag.MessageReceivedNoExtraData)
{
bytes = null;
MessageHasBeenReceived();
_state.Reset();
}
if (_state.Flag == MessageFlag.MessageReceivedExtraData)
{
bytes = null;
MessageHasBeenReceived();
_state.Reset();
return(true);
}
return(false);
}