public static extern SocketError WSARecv(
[In] IntPtr socketHandle,
[In] ref WSABuffer buffer, [In] int bufferCount,
out int bytesTransferred,
[In, Out] ref SocketFlags socketFlags,
[In] IntPtr overlapped,
[In] IntPtr completionRoutine);
public override void Receive(byte[] buffer, int offset, int count, SocketFlags flags)
{
if (buffer == null)
{
throw new ArgumentNullException("buffer");
}
m_inOverlapped.StartOperation(OperationType.Receive, buffer);
var receiveBuffer = new WSABuffer();
receiveBuffer.Pointer = new IntPtr(m_inOverlapped.BufferAddress + offset);
receiveBuffer.Length = count;
int bytesTransferred;
SocketError socketError = UnsafeMethods.WSARecv(Handle, ref receiveBuffer, 1,
out bytesTransferred, ref flags, m_inOverlapped.Address, IntPtr.Zero);
if (socketError != SocketError.Success)
{
socketError = (SocketError)Marshal.GetLastWin32Error();
if (socketError != SocketError.IOPending)
{
throw new SocketException((int)socketError);
}
}
}
public override void Send(byte[] buffer, int offset, int count, SocketFlags flags)
{
if (buffer == null)
{
throw new ArgumentNullException("buffer");
}
int bytesTransferred;
m_outOverlapped.StartOperation(OperationType.Send, buffer);
var sendBuffer = new WSABuffer
{
Pointer = new IntPtr(m_outOverlapped.BufferAddress + offset),
Length = count
};
SocketError socketError = UnsafeMethods.WSASend(Handle, ref sendBuffer, 1,
out bytesTransferred, flags, m_outOverlapped.Address, IntPtr.Zero);
if (socketError != SocketError.Success)
{
socketError = (SocketError)Marshal.GetLastWin32Error();
if (socketError != SocketError.IOPending)
{
throw new SocketException((int)socketError);
}
}
}
public Socket(AddressFamily addressFamily, SocketType socketType, ProtocolType protocolType)
: base(addressFamily, socketType, protocolType)
{
m_disposed = false;
m_inOverlapped = new Overlapped(this);
m_outOverlapped = new Overlapped(this);
m_sendWSABuffer = new WSABuffer();
m_receiveWSABuffer = new WSABuffer();
InitSocket();
InitDynamicMethods();
}
