/// <summary>
/// Starts connection to the specified host.
/// </summary>
/// <param name="host">Host name or IP address.</param>
/// <param name="port">Port to connect.</param>
/// <param name="ssl">Specifies if connects to SSL end point.</param>
/// <param name="callback">Callback to call when the connect operation is complete.</param>
/// <param name="state">User data.</param>
/// <returns>An IAsyncResult that references the asynchronous connection.</returns>
/// <exception cref="ObjectDisposedException">Is raised when this object is disposed and this method is accessed.</exception>
/// <exception cref="InvalidOperationException">Is raised when TCP client is already connected.</exception>
/// <exception cref="ArgumentException">Is raised when any of the arguments has invalid value.</exception>
public IAsyncResult BeginConnect(string host, int port, bool ssl, AsyncCallback callback, object state)
{
if (m_IsDisposed)
{
throw new ObjectDisposedException(GetType().Name);
}
if (IsConnected)
{
throw new InvalidOperationException("TCP client is already connected.");
}
if (string.IsNullOrEmpty(host))
{
throw new ArgumentException("Argument 'host' value may not be null or empty.");
}
if (port < 1)
{
throw new ArgumentException("Argument 'port' value must be >= 1.");
}
BeginConnectHostDelegate asyncMethod = Connect;
AsyncResultState asyncState = new AsyncResultState(this, asyncMethod, callback, state);
asyncState.SetAsyncResult(asyncMethod.BeginInvoke(host,
port,
ssl,
asyncState.CompletedCallback,
null));
return(asyncState);
}
/// <summary>
/// Starts connection to the specified host.
/// </summary>
/// <param name="host">Host name or IP address.</param>
/// <param name="port">Port to connect.</param>
/// <param name="ssl">Specifies if connects to SSL end point.</param>
/// <param name="callback">Callback to call when the connect operation is complete.</param>
/// <param name="state">User data.</param>
/// <returns>An IAsyncResult that references the asynchronous connection.</returns>
/// <exception cref="ObjectDisposedException">Is raised when this object is disposed and this method is accessed.</exception>
/// <exception cref="InvalidOperationException">Is raised when TCP client is already connected.</exception>
/// <exception cref="ArgumentException">Is raised when any of the arguments has invalid value.</exception>
public IAsyncResult BeginConnect(string host,int port,bool ssl,AsyncCallback callback,object state)
{
if(m_IsDisposed){
throw new ObjectDisposedException(this.GetType().Name);
}
if(m_IsConnected){
throw new InvalidOperationException("TCP client is already connected.");
}
if(string.IsNullOrEmpty(host)){
throw new ArgumentException("Argument 'host' value may not be null or empty.");
}
if(port < 1){
throw new ArgumentException("Argument 'port' value must be >= 1.");
}
BeginConnectHostDelegate asyncMethod = new BeginConnectHostDelegate(this.Connect);
AsyncResultState asyncState = new AsyncResultState(this,asyncMethod,callback,state);
asyncState.SetAsyncResult(asyncMethod.BeginInvoke(host,port,ssl,new AsyncCallback(asyncState.CompletedCallback),null));
return asyncState;
}
