| private DoOperationSendTo ( SafeCloseSocket handle, int &bytesTransferred ) : SocketError | ||
| handle | SafeCloseSocket | |
| bytesTransferred | int | |
| return | SocketError | |
public bool SendToAsync(SocketAsyncEventArgs e)
{
bool retval;
if (s_loggingEnabled)
{
Logging.Enter(Logging.Sockets, this, "SendToAsync", "");
}
if (CleanedUp)
{
throw new ObjectDisposedException(GetType().FullName);
}
if (e == null)
{
throw new ArgumentNullException("e");
}
if (e.RemoteEndPoint == null)
{
throw new ArgumentNullException("RemoteEndPoint");
}
// Check permissions for connect and prepare SocketAddress
EndPoint endPointSnapshot = e.RemoteEndPoint;
e._socketAddress = CheckCacheRemote(ref endPointSnapshot, false);
// Prepare for the native call.
e.StartOperationCommon(this);
e.StartOperationSendTo();
// Make the native call.
int bytesTransferred;
SocketError socketError;
// Wrap native methods with try/catch so event args object can be cleaned up.
try
{
socketError = e.DoOperationSendTo(_handle, out bytesTransferred);
}
catch (Exception ex)
{
// Clear in-use flag on event args object.
e.Complete();
throw ex;
}
// Handle completion when completion port is not posted.
if (socketError != SocketError.Success && socketError != SocketError.IOPending)
{
e.FinishOperationSyncFailure(socketError, bytesTransferred, SocketFlags.None);
retval = false;
}
else
{
retval = true;
}
if (s_loggingEnabled)
{
Logging.Exit(Logging.Sockets, this, "SendToAsync", retval);
}
return retval;
}