} // DispatchExceptionOrRetry
// called from StartRequest
private static void ProcessGetRequestStreamCompletion(IAsyncResult iar)
{
// We've just received a request stream.
AsyncHttpClientRequestState asyncRequestState = (AsyncHttpClientRequestState)iar.AsyncState;
try
{
HttpWebRequest httpWebRequest = asyncRequestState.WebRequest;
Stream sourceRequestStream = asyncRequestState.RequestStream;
Stream webRequestStream = httpWebRequest.EndGetRequestStream(iar);
StreamHelper.BeginAsyncCopyStream(
sourceRequestStream, webRequestStream,
false, true, // [....] read, async write
false, true, // leave source open, close target
s_processAsyncCopyRequestStreamCompletionCallback,
asyncRequestState);
}
catch (Exception e)
{
asyncRequestState.RetryOrDispatchException(e);
}
} // ProcessGetRequestStreamCompletion
} // ProcessGetResponseCompletion
// called from ProcessGetResponseCompletion
private static void ProcessAsyncCopyResponseStreamCompletion(IAsyncResult iar)
{
// We've just finished copying the network response stream into a memory stream.
AsyncHttpClientRequestState asyncRequestState = (AsyncHttpClientRequestState)iar.AsyncState;
try
{
StreamHelper.EndAsyncCopyStream(iar);
HttpWebResponse webResponse = asyncRequestState.WebResponse;
Stream responseStream = asyncRequestState.ActualResponseStream;
ITransportHeaders responseHeaders = CollectResponseHeaders(webResponse);
// call down the sink chain
asyncRequestState.SinkStack.AsyncProcessResponse(responseHeaders, responseStream);
}
catch (Exception e)
{
asyncRequestState.SinkStack.DispatchException(e);
}
catch {
asyncRequestState.SinkStack.DispatchException(new Exception(CoreChannel.GetResourceString("Remoting_nonClsCompliantException")));
}
} // ProcessAsyncResponseStreamCompletion
} // ProcessMessage
public void AsyncProcessRequest(IClientChannelSinkStack sinkStack, IMessage msg,
ITransportHeaders headers, Stream stream)
{
// Send the webrequest, headers, request stream, and retry count.
AsyncHttpClientRequestState asyncRequestState =
new AsyncHttpClientRequestState(this, sinkStack, msg, headers, stream, 1);
asyncRequestState.StartRequest();
} // AsyncProcessRequest
} // ProcessGetRequestStreamCompletion
// called from ProcessGetRequestStreamCompletion
private static void ProcessAsyncCopyRequestStreamCompletion(IAsyncResult iar)
{
// We've just finished copying the original request stream into the network stream.
AsyncHttpClientRequestState asyncRequestState = (AsyncHttpClientRequestState)iar.AsyncState;
try
{
StreamHelper.EndAsyncCopyStream(iar);
asyncRequestState.WebRequest.BeginGetResponse(
s_processGetResponseCompletionCallback, asyncRequestState);
}
catch (Exception e)
{
// This is the last point where we should retry.
asyncRequestState.RetryOrDispatchException(e);
}
} // ProcessAsyncCopyRequestStreamCompletion
} // ProcessAsyncCopyRequestStreamCompletion
// called from ProcessAsyncCopyRequestStreamCompletion
private static void ProcessGetResponseCompletion(IAsyncResult iar)
{
// We've just received a response.
AsyncHttpClientRequestState asyncRequestState = (AsyncHttpClientRequestState)iar.AsyncState;
try
{
// close the request stream since we are done with it.
asyncRequestState.RequestStream.Close();
HttpWebResponse httpWebResponse = null;
HttpWebRequest httpWebRequest = asyncRequestState.WebRequest;
try
{
httpWebResponse = (HttpWebResponse)httpWebRequest.EndGetResponse(iar);
}
catch (WebException webException)
{
ProcessResponseException(webException, out httpWebResponse);
}
asyncRequestState.WebResponse = httpWebResponse;
// Asynchronously pump the web response stream into a memory stream.
ChunkedMemoryStream responseStream = new ChunkedMemoryStream(CoreChannel.BufferPool);
asyncRequestState.ActualResponseStream = responseStream;
StreamHelper.BeginAsyncCopyStream(
httpWebResponse.GetResponseStream(), responseStream,
true, false, // async read, sync write
true, false, // close source, leave target open
s_processAsyncCopyRequestStreamCompletion,
asyncRequestState);
}
catch (Exception e)
{
asyncRequestState.SinkStack.DispatchException(e);
}
catch {
asyncRequestState.SinkStack.DispatchException(new Exception(CoreChannel.GetResourceString("Remoting_nonClsCompliantException")));
}
} // ProcessGetResponseCompletion
} // ProcessMessage
public void AsyncProcessRequest(IClientChannelSinkStack sinkStack, IMessage msg,
ITransportHeaders headers, Stream stream)
{
// Send the webrequest, headers, request stream, and retry count.
AsyncHttpClientRequestState asyncRequestState =
new AsyncHttpClientRequestState(this, sinkStack, msg, headers, stream, 1);
asyncRequestState.StartRequest();
} // AsyncProcessRequest
