public override IAsyncResult BeginGetRequestStream(AsyncCallback callback, object state)
{
if (string.Compare("GET", method, true) == 0 || string.Compare("HEAD", method, true) == 0 || string.Compare("CONNECT", method, true) == 0)
{
throw new ProtocolViolationException("Cannot send a content-body with this verb-type.");
}
lock (this)
{
if (asyncResponding || webResponse != null)
{
throw new InvalidOperationException("This operation cannot be performed after the request has been submitted.");
}
if (requesting)
{
throw new InvalidOperationException("Cannot re-call start of asynchronous method while a previous call is still in progress.");
}
requesting = true;
}
GetRequestStreamCallback c = new GetRequestStreamCallback(this.GetRequestStreamInternal);
#if SSHARP
return(c.BeginInvokeEx(callback, state));
#else
return(c.BeginInvoke(callback, state));
#endif
}
/// <summary>Ends an asynchronous request for a <see cref="T:System.IO.Stream" /> instance that the application uses to write data.</summary>
/// <returns>A <see cref="T:System.IO.Stream" /> object that the application uses to write data.</returns>
/// <param name="asyncResult">An <see cref="T:System.IAsyncResult" /> that references the pending request for a stream. </param>
/// <exception cref="T:System.ArgumentNullException">
/// <paramref name="asyncResult" /> is null. </exception>
public override Stream EndGetRequestStream(IAsyncResult asyncResult)
{
if (asyncResult == null)
{
throw new ArgumentNullException("asyncResult");
}
if (!asyncResult.IsCompleted)
{
asyncResult.AsyncWaitHandle.WaitOne();
}
AsyncResult asyncResult2 = (AsyncResult)asyncResult;
GetRequestStreamCallback getRequestStreamCallback = (GetRequestStreamCallback)asyncResult2.AsyncDelegate;
return(getRequestStreamCallback.EndInvoke(asyncResult));
}
public override Stream EndGetRequestStream(IAsyncResult asyncResult)
{
if (asyncResult == null)
{
throw new ArgumentNullException("asyncResult");
}
if (!asyncResult.IsCompleted)
{
asyncResult.AsyncWaitHandle.WaitOne();
}
AsyncResult async = (AsyncResult)asyncResult;
GetRequestStreamCallback cb = (GetRequestStreamCallback)async.AsyncDelegate;
#if SSHARP
var result = cb.EndInvokeEx <Stream> (asyncResult);
#else
var result = cb.EndInvoke(asyncResult);
#endif
requesting = false;
return(result);
}
public override IAsyncResult BeginGetRequestStream (AsyncCallback callback, object state)
{
if (string.Compare ("GET", method, true) == 0 ||
string.Compare ("HEAD", method, true) == 0 ||
string.Compare ("CONNECT", method, true) == 0)
throw new ProtocolViolationException ("Cannot send a content-body with this verb-type.");
lock (this) {
if (asyncResponding || webResponse != null)
throw new InvalidOperationException ("This operation cannot be performed after the request has been submitted.");
if (requesting)
throw new InvalidOperationException ("Cannot re-call start of asynchronous method while a previous call is still in progress.");
requesting = true;
}
GetRequestStreamCallback c = new GetRequestStreamCallback (this.GetRequestStreamInternal);
return c.BeginInvoke (callback, state);
}
