protected override void FinishCurrentChange(BaseAsyncResult.PerRequest pereq)
{
base.FinishCurrentChange(pereq);
this.ResponseStream.Position = 0L;
base.perRequest = null;
base.SetCompleted();
}
internal void BatchBeginRequest()
{
BaseAsyncResult.PerRequest pereq = null;
try
{
ODataRequestMessageWrapper request = this.GenerateBatchRequest();
if (request != null)
{
request.SetContentLengthHeader();
base.perRequest = pereq = new BaseAsyncResult.PerRequest();
pereq.Request = request;
pereq.RequestContentStream = new BaseAsyncResult.ContentStream(request.CachedRequestStream, true);
BaseAsyncResult.AsyncStateBag state = new BaseAsyncResult.AsyncStateBag(pereq, (DataServiceContext)base.Source);
this.responseStream = new MemoryStream();
IAsyncResult result = BaseAsyncResult.InvokeAsync(new Func <ODataRequestMessageWrapper, AsyncCallback, object, IAsyncResult>(WebUtil.BeginGetRequestStream), request, new AsyncCallback(this.AsyncEndGetRequestStream), state);
pereq.SetRequestCompletedSynchronously(result.CompletedSynchronously);
}
}
catch (Exception exception)
{
base.HandleFailure(pereq, exception);
throw;
}
finally
{
this.HandleCompleted(pereq);
}
}
protected override void CompleteCheck(BaseAsyncResult.PerRequest pereq, InternalError errorcode)
{
if ((pereq == null) || ((pereq.RequestCompleted || base.IsCompletedInternally) && (!base.IsAborted && !pereq.RequestAborted)))
{
System.Data.Services.Client.Error.ThrowInternalError(errorcode);
}
}
protected override void AsyncEndGetResponse(IAsyncResult asyncResult)
{
BaseAsyncResult.AsyncStateBag asyncState = asyncResult.AsyncState as BaseAsyncResult.AsyncStateBag;
BaseAsyncResult.PerRequest request = (asyncState == null) ? null : asyncState.PerRequest;
DataServiceContext context = (asyncState == null) ? null : asyncState.Context;
try
{
this.CompleteCheck(request, InternalError.InvalidEndGetResponseCompleted);
request.SetRequestCompletedSynchronously(asyncResult.CompletedSynchronously);
BaseAsyncResult.EqualRefCheck(base.perRequest, request, InternalError.InvalidEndGetResponse);
ODataRequestMessageWrapper wrapper = Util.NullCheck <ODataRequestMessageWrapper>(request.Request, InternalError.InvalidEndGetResponseRequest);
HttpWebResponse response = null;
response = WebUtil.EndGetResponse(wrapper, asyncResult, context);
request.HttpWebResponse = Util.NullCheck <HttpWebResponse>(response, InternalError.InvalidEndGetResponseResponse);
if (!this.IsBatch)
{
this.HandleOperationResponse(response);
this.HandleOperationResponseHeaders(response.StatusCode, WebUtil.WrapResponseHeaders(response));
}
Stream responseStream = WebUtil.GetResponseStream(response, context);
request.ResponseStream = responseStream;
if ((responseStream != null) && responseStream.CanRead)
{
if (this.buildBatchBuffer == null)
{
this.buildBatchBuffer = new byte[0x1f40];
}
do
{
asyncResult = BaseAsyncResult.InvokeAsync(new BaseAsyncResult.AsyncAction(responseStream.BeginRead), this.buildBatchBuffer, 0, this.buildBatchBuffer.Length, new AsyncCallback(this.AsyncEndRead), new AsyncReadState(request));
request.SetRequestCompletedSynchronously(asyncResult.CompletedSynchronously);
}while (((asyncResult.CompletedSynchronously && !request.RequestCompleted) && !base.IsCompletedInternally) && responseStream.CanRead);
}
else
{
request.SetComplete();
if (!base.IsCompletedInternally && !request.RequestCompletedSynchronously)
{
this.FinishCurrentChange(request);
}
}
}
catch (Exception exception)
{
if (base.HandleFailure(request, exception))
{
throw;
}
}
finally
{
this.HandleCompleted(request);
}
}
private void AsyncEndRead(IAsyncResult asyncResult)
{
AsyncReadState asyncState = (AsyncReadState)asyncResult.AsyncState;
BaseAsyncResult.PerRequest pereq = asyncState.Pereq;
int count = 0;
try
{
this.CompleteCheck(pereq, InternalError.InvalidEndReadCompleted);
pereq.SetRequestCompletedSynchronously(asyncResult.CompletedSynchronously);
BaseAsyncResult.EqualRefCheck(base.perRequest, pereq, InternalError.InvalidEndRead);
Stream stream = Util.NullCheck <Stream>(pereq.ResponseStream, InternalError.InvalidEndReadStream);
count = stream.EndRead(asyncResult);
if (0 < count)
{
Util.NullCheck <Stream>(this.ResponseStream, InternalError.InvalidEndReadCopy).Write(this.buildBatchBuffer, 0, count);
asyncState.TotalByteCopied += count;
if (!asyncResult.CompletedSynchronously && stream.CanRead)
{
do
{
asyncResult = BaseAsyncResult.InvokeAsync(new BaseAsyncResult.AsyncAction(stream.BeginRead), this.buildBatchBuffer, 0, this.buildBatchBuffer.Length, new AsyncCallback(this.AsyncEndRead), asyncState);
pereq.SetRequestCompletedSynchronously(asyncResult.CompletedSynchronously);
if ((!asyncResult.CompletedSynchronously || pereq.RequestCompleted) || base.IsCompletedInternally)
{
return;
}
}while (stream.CanRead);
}
}
else
{
pereq.SetComplete();
if (!base.IsCompletedInternally && !pereq.RequestCompletedSynchronously)
{
this.FinishCurrentChange(pereq);
}
}
}
catch (Exception exception)
{
if (base.HandleFailure(pereq, exception))
{
throw;
}
}
finally
{
this.HandleCompleted(pereq);
}
}
protected override void HandleCompleted(BaseAsyncResult.PerRequest pereq)
{
if (pereq != null)
{
base.SetCompletedSynchronously(pereq.RequestCompletedSynchronously);
if (pereq.RequestCompleted)
{
Interlocked.CompareExchange <BaseAsyncResult.PerRequest>(ref this.perRequest, null, pereq);
pereq.Dispose();
}
}
base.HandleCompleted();
}
private void AsyncEndRead(IAsyncResult asyncResult)
{
BaseAsyncResult.AsyncStateBag asyncState = asyncResult.AsyncState as BaseAsyncResult.AsyncStateBag;
BaseAsyncResult.PerRequest request = (asyncState == null) ? null : asyncState.PerRequest;
int count = 0;
try
{
this.CompleteCheck(request, InternalError.InvalidEndReadCompleted);
request.SetRequestCompletedSynchronously(asyncResult.CompletedSynchronously);
base.SetCompletedSynchronously(asyncResult.CompletedSynchronously);
Stream stream = Util.NullCheck <Stream>(request.ResponseStream, InternalError.InvalidEndReadStream);
Stream stream2 = Util.NullCheck <Stream>(this.outputResponseStream, InternalError.InvalidEndReadCopy);
byte[] buffer = Util.NullCheck <byte[]>(this.asyncStreamCopyBuffer, InternalError.InvalidEndReadBuffer);
count = stream.EndRead(asyncResult);
this.usingBuffer = false;
if (0 < count)
{
stream2.Write(buffer, 0, count);
}
if (((0 < count) && (0 < buffer.Length)) && stream.CanRead)
{
if (!asyncResult.CompletedSynchronously)
{
this.ReadResponseStream(asyncState);
}
}
else
{
if (stream2.Position < stream2.Length)
{
((MemoryStream)stream2).SetLength(stream2.Position);
}
request.SetComplete();
base.SetCompleted();
}
}
catch (Exception exception)
{
if (base.HandleFailure(exception))
{
throw;
}
}
finally
{
this.HandleCompleted(request);
}
}
private void ReadResponseStream(BaseAsyncResult.AsyncStateBag asyncStateBag)
{
BaseAsyncResult.PerRequest perRequest = asyncStateBag.PerRequest;
IAsyncResult result = null;
byte[] asyncStreamCopyBuffer = this.asyncStreamCopyBuffer;
Stream responseStream = perRequest.ResponseStream;
do
{
int offset = 0;
int length = asyncStreamCopyBuffer.Length;
this.usingBuffer = true;
result = BaseAsyncResult.InvokeAsync(new BaseAsyncResult.AsyncAction(responseStream.BeginRead), asyncStreamCopyBuffer, offset, length, new AsyncCallback(this.AsyncEndRead), asyncStateBag);
perRequest.SetRequestCompletedSynchronously(result.CompletedSynchronously);
base.SetCompletedSynchronously(result.CompletedSynchronously);
}while ((result.CompletedSynchronously && !perRequest.RequestCompleted) && (!base.IsCompletedInternally && responseStream.CanRead));
}
protected override void FinishCurrentChange(BaseAsyncResult.PerRequest pereq)
{
base.FinishCurrentChange(pereq);
if (this.ResponseStream.Position != 0L)
{
this.ResponseStream.Position = 0L;
this.HandleOperationResponseData(this.httpWebResponse, this.ResponseStream);
}
else
{
this.HandleOperationResponseData(this.httpWebResponse, null);
}
pereq.Dispose();
base.perRequest = null;
if (!pereq.RequestCompletedSynchronously && !base.IsCompletedInternally)
{
this.BeginCreateNextChange();
}
}
internal void BeginExecuteQuery(DataServiceContext context)
{
IAsyncResult result = null;
BaseAsyncResult.PerRequest pereq = new BaseAsyncResult.PerRequest();
BaseAsyncResult.AsyncStateBag state = new BaseAsyncResult.AsyncStateBag(pereq, context);
pereq.Request = this.Request;
base.perRequest = pereq;
try
{
if ((this.requestContentStream != null) && (this.requestContentStream.Stream != null))
{
if (this.requestContentStream.IsKnownMemoryStream)
{
this.Request.SetContentLengthHeader();
}
base.perRequest.RequestContentStream = this.requestContentStream;
result = BaseAsyncResult.InvokeAsync(new Func <ODataRequestMessageWrapper, AsyncCallback, object, IAsyncResult>(WebUtil.BeginGetRequestStream), this.Request, new AsyncCallback(this.AsyncEndGetRequestStream), state);
}
else
{
result = BaseAsyncResult.InvokeAsync(new Func <ODataRequestMessageWrapper, AsyncCallback, object, IAsyncResult>(WebUtil.BeginGetResponse), this.Request, new AsyncCallback(this.AsyncEndGetResponse), state);
}
pereq.SetRequestCompletedSynchronously(result.CompletedSynchronously);
base.SetCompletedSynchronously(result.CompletedSynchronously);
}
catch (Exception exception)
{
base.HandleFailure(exception);
throw;
}
finally
{
this.HandleCompleted(pereq);
}
}
protected override void HandleCompleted(BaseAsyncResult.PerRequest pereq)
{
Error.ThrowInternalError(InternalError.InvalidHandleCompleted);
}
internal void BeginCreateNextChange()
{
HttpWebResponse response;
this.inMemoryResponseStream = new MemoryStream();
BaseAsyncResult.PerRequest pereq = null;
IAsyncResult result = null;
Label_000F:
response = null;
ODataRequestMessageWrapper requestMessage = null;
try
{
if (base.perRequest != null)
{
base.SetCompleted();
System.Data.Services.Client.Error.ThrowInternalError(InternalError.InvalidBeginNextChange);
}
requestMessage = this.CreateNextRequest();
if (requestMessage == null)
{
base.Abortable = null;
}
if ((requestMessage != null) || (base.entryIndex < base.ChangedEntries.Count))
{
if (base.ChangedEntries[base.entryIndex].ContentGeneratedForSave)
{
goto Label_0191;
}
base.Abortable = requestMessage;
BaseAsyncResult.ContentStream stream = this.CreateNonBatchChangeData(base.entryIndex, requestMessage);
base.perRequest = pereq = new BaseAsyncResult.PerRequest();
pereq.Request = requestMessage;
BaseAsyncResult.AsyncStateBag state = new BaseAsyncResult.AsyncStateBag(pereq, (DataServiceContext)base.Source);
if ((stream == null) || (stream.Stream == null))
{
result = BaseAsyncResult.InvokeAsync(new Func <ODataRequestMessageWrapper, AsyncCallback, object, IAsyncResult>(WebUtil.BeginGetResponse), requestMessage, new AsyncCallback(this.AsyncEndGetResponse), state);
}
else
{
if (stream.IsKnownMemoryStream)
{
requestMessage.SetContentLengthHeader();
}
pereq.RequestContentStream = stream;
result = BaseAsyncResult.InvokeAsync(new Func <ODataRequestMessageWrapper, AsyncCallback, object, IAsyncResult>(WebUtil.BeginGetRequestStream), requestMessage, new AsyncCallback(this.AsyncEndGetRequestStream), state);
}
pereq.SetRequestCompletedSynchronously(result.CompletedSynchronously);
base.SetCompletedSynchronously(pereq.RequestCompletedSynchronously);
}
else
{
base.SetCompleted();
if (base.CompletedSynchronously)
{
this.HandleCompleted(pereq);
}
}
}
catch (InvalidOperationException exception)
{
WebUtil.GetHttpWebResponse(exception, ref response);
this.HandleOperationException(exception, response);
this.HandleCompleted(pereq);
}
finally
{
if (response != null)
{
response.Close();
}
}
if (((pereq != null) && pereq.RequestCompleted) && (pereq.RequestCompletedSynchronously && !base.IsCompletedInternally))
{
this.FinishCurrentChange(pereq);
}
Label_0191:
if (((pereq == null) || (pereq.RequestCompleted && pereq.RequestCompletedSynchronously)) && !base.IsCompletedInternally)
{
goto Label_000F;
}
}
/// <summary>Set the AsyncWait and invoke the user callback.</summary>
/// <param name="pereq">the request object</param>
/// <remarks>This method is not implemented for this class.</remarks>
protected override void HandleCompleted(BaseAsyncResult.PerRequest pereq)
{
Debug.Assert(false, "This method should never be called from GetReadStreamResult.");
Error.ThrowInternalError(InternalError.InvalidHandleCompleted);
}
internal AsyncReadState(BaseAsyncResult.PerRequest pereq)
{
this.Pereq = pereq;
this.totalByteCopied = 0;
}
protected override void AsyncEndGetResponse(IAsyncResult asyncResult)
{
BaseAsyncResult.AsyncStateBag asyncState = asyncResult.AsyncState as BaseAsyncResult.AsyncStateBag;
BaseAsyncResult.PerRequest request = (asyncState == null) ? null : asyncState.PerRequest;
DataServiceContext context = (asyncState == null) ? null : asyncState.Context;
try
{
if (base.IsAborted)
{
if (request != null)
{
request.SetComplete();
}
base.SetCompleted();
}
else
{
this.CompleteCheck(request, InternalError.InvalidEndGetResponseCompleted);
request.SetRequestCompletedSynchronously(asyncResult.CompletedSynchronously);
base.SetCompletedSynchronously(asyncResult.CompletedSynchronously);
HttpWebResponse response = WebUtil.EndGetResponse(Util.NullCheck <ODataRequestMessageWrapper>(request.Request, InternalError.InvalidEndGetResponseRequest), asyncResult, context);
request.HttpWebResponse = Util.NullCheck <HttpWebResponse>(response, InternalError.InvalidEndGetResponseResponse);
this.SetHttpWebResponse(request.HttpWebResponse);
Stream responseStream = null;
if (HttpStatusCode.NoContent != response.StatusCode)
{
responseStream = WebUtil.GetResponseStream(response, context);
request.ResponseStream = responseStream;
}
if ((responseStream != null) && responseStream.CanRead)
{
if (this.outputResponseStream == null)
{
this.outputResponseStream = Util.NullCheck <Stream>(this.GetAsyncResponseStreamCopy(), InternalError.InvalidAsyncResponseStreamCopy);
}
if (this.asyncStreamCopyBuffer == null)
{
this.asyncStreamCopyBuffer = Util.NullCheck <byte[]>(this.GetAsyncResponseStreamCopyBuffer(), InternalError.InvalidAsyncResponseStreamCopyBuffer);
}
this.ReadResponseStream(asyncState);
}
else
{
request.SetComplete();
base.SetCompleted();
}
}
}
catch (Exception exception)
{
if (base.HandleFailure(exception))
{
throw;
}
}
finally
{
this.HandleCompleted(request);
}
}