private void Dispose(bool disposing)
{
if (!m_disposed)
{
m_disposed = true;
m_inOverlapped.Dispose();
m_outOverlapped.Dispose();
// for Windows XP
if (Environment.OSVersion.Version.Major == 5)
{
UnsafeMethods.CancelIo(Handle);
}
else
{
UnsafeMethods.CancelIoEx(Handle, IntPtr.Zero);
}
int error = UnsafeMethods.closesocket(Handle);
if (error != 0)
{
error = Marshal.GetLastWin32Error();
}
if (m_remoteAddress != null)
{
m_remoteAddress.Dispose();
m_remoteAddress = null;
}
if (m_boundAddress != null)
{
m_boundAddress.Dispose();
m_boundAddress = null;
}
if (m_sendPinnedBuffer != null)
{
m_sendPinnedBuffer.Dispose();
m_sendPinnedBuffer = null;
}
if (m_receivePinnedBuffer != null)
{
m_receivePinnedBuffer.Dispose();
m_receivePinnedBuffer = null;
}
if (m_acceptSocketBufferAddress != IntPtr.Zero)
{
Marshal.FreeHGlobal(m_acceptSocketBufferAddress);
}
}
}
private void Free()
{
Marshal.FreeHGlobal(m_address);
if (m_handle.IsAllocated)
{
m_handle.Free();
}
if (m_pinnedBuffer != null)
{
m_pinnedBuffer.Dispose();
m_pinnedBuffer = null;
}
}
public void StartOperation(OperationType operationType, byte[] buffer)
{
InProgress = true;
Success = false;
OperationType = operationType;
if (buffer != null)
{
if (m_pinnedBuffer == null)
{
m_pinnedBuffer = new PinnedBuffer(buffer);
}
else if (m_pinnedBuffer.Buffer != buffer)
{
m_pinnedBuffer.Switch(buffer);
}
}
}
public override void Receive(byte[] buffer, int offset, int count, SocketFlags flags)
{
if (buffer == null)
{
throw new ArgumentNullException("buffer");
}
if (m_receivePinnedBuffer == null)
{
m_receivePinnedBuffer = new PinnedBuffer(buffer);
}
else if (m_receivePinnedBuffer.Buffer != buffer)
{
m_receivePinnedBuffer.Switch(buffer);
}
m_inOverlapped.StartOperation(OperationType.Receive);
m_receiveWSABuffer.Pointer = new IntPtr(m_receivePinnedBuffer.Address + offset);
m_receiveWSABuffer.Length = count;
int bytesTransferred;
SocketError socketError = UnsafeMethods.WSARecv(Handle, ref m_receiveWSABuffer, 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);
}
}
}
private void Dispose(bool disposing)
{
if (!m_disposed)
{
m_disposed = true;
m_inOverlapped.Dispose();
m_outOverlapped.Dispose();
UnsafeMethods.CancelIoEx(Handle, IntPtr.Zero);
int error = UnsafeMethods.closesocket(Handle);
if (error != 0)
{
error = Marshal.GetLastWin32Error();
}
if (m_remoteAddress != null)
{
m_remoteAddress.Dispose();
m_remoteAddress = null;
}
if (m_boundAddress != null)
{
m_boundAddress.Dispose();
m_boundAddress = null;
}
if (m_sendPinnedBuffer != null)
{
m_sendPinnedBuffer.Dispose();
m_sendPinnedBuffer = null;
}
if (m_receivePinnedBuffer != null)
{
m_receivePinnedBuffer.Dispose();
m_receivePinnedBuffer = null;
}
if (m_acceptSocketBufferAddress != IntPtr.Zero)
{
Marshal.FreeHGlobal(m_acceptSocketBufferAddress);
}
}
}
public override void Send(byte[] buffer, int offset, int count, SocketFlags flags)
{
if (buffer == null)
throw new ArgumentNullException("buffer");
int bytesTransferred;
if (m_sendPinnedBuffer == null)
{
m_sendPinnedBuffer = new PinnedBuffer(buffer);
}
else if (m_sendPinnedBuffer.Buffer != buffer)
{
m_sendPinnedBuffer.Switch(buffer);
}
m_outOverlapped.StartOperation(OperationType.Send);
m_sendWSABuffer.Pointer = new IntPtr(m_sendPinnedBuffer.Address + offset);
m_sendWSABuffer.Length = count;
SocketError socketError = UnsafeMethods.WSASend(Handle, ref m_sendWSABuffer, 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);
}
}
}
private void Dispose(bool disposing)
{
if (!m_disposed)
{
m_disposed = true;
m_inOverlapped.Dispose();
m_outOverlapped.Dispose();
// for Windows XP
#if NETSTANDARD1_3
UnsafeMethods.CancelIoEx(Handle, IntPtr.Zero);
#else
if (false)
{
UnsafeMethods.CancelIo(Handle);
}
else
{
UnsafeMethods.CancelIoEx(Handle, IntPtr.Zero);
}
#endif
int error = UnsafeMethods.closesocket(Handle);
if (error != 0)
{
error = Marshal.GetLastWin32Error();
}
if (m_remoteAddress != null)
{
m_remoteAddress.Dispose();
m_remoteAddress = null;
}
if (m_boundAddress != null)
{
m_boundAddress.Dispose();
m_boundAddress = null;
}
if (m_sendPinnedBuffer != null)
{
m_sendPinnedBuffer.Dispose();
m_sendPinnedBuffer = null;
}
if (m_receivePinnedBuffer != null)
{
m_receivePinnedBuffer.Dispose();
m_receivePinnedBuffer = null;
}
if (m_acceptSocketBufferAddress != IntPtr.Zero)
{
Marshal.FreeHGlobal(m_acceptSocketBufferAddress);
}
if (m_acceptSocket != null)
{
m_acceptSocket.Dispose();
}
}
}