// Token: 0x06001226 RID: 4646 RVA: 0x0006E79C File Offset: 0x0006C99C
private void InternalStageCallback(ProxyStreamCopy.CopyStage nextStage, IAsyncResult result)
{
bool flag = false;
if (result.CompletedSynchronously)
{
return;
}
try
{
if (this.ProcessNextSyncBatch(nextStage, result))
{
flag = true;
}
}
catch (Exception exception)
{
this.result.CompleteRequest(false, exception);
return;
}
if (flag)
{
this.result.CompleteRequest(false);
}
}
// Token: 0x06001225 RID: 4645 RVA: 0x0006E624 File Offset: 0x0006C824
private bool ProcessNextSyncBatch(ProxyStreamCopy.CopyStage stage, IAsyncResult result)
{
ProxyStreamCopy.CopyStage copyStage = stage;
IAsyncResult asyncResult = result;
Stream stream = this.source as Stream;
Stream stream2 = this.destination;
for (;;)
{
if (copyStage == ProxyStreamCopy.CopyStage.EndWrite)
{
stream2.EndWrite(asyncResult);
}
if (copyStage == ProxyStreamCopy.CopyStage.BeginRead || copyStage == ProxyStreamCopy.CopyStage.EndWrite)
{
if (this.sourceType == ProxyStreamCopy.SourceType.String)
{
this.bytesRead = this.ReadNextStringChunk();
}
else if ((this.copyMode & (StreamCopyMode)1) != (StreamCopyMode)0)
{
this.bytesRead = stream.Read(this.Buffer, 0, this.Buffer.Length);
copyStage = ProxyStreamCopy.CopyStage.BeginWrite;
asyncResult = null;
}
else
{
IAsyncResult asyncResult2 = stream.BeginRead(this.Buffer, 0, this.Buffer.Length, new AsyncCallback(ProxyStreamCopy.ReadCallback), this);
if (!asyncResult2.CompletedSynchronously)
{
break;
}
copyStage = ProxyStreamCopy.CopyStage.EndRead;
asyncResult = asyncResult2;
}
}
if (copyStage == ProxyStreamCopy.CopyStage.EndRead)
{
this.bytesRead = stream.EndRead(asyncResult);
}
if (this.bytesRead <= 0)
{
return(true);
}
this.totalBytesCopied += this.bytesRead;
bool flag;
if ((this.copyMode & (StreamCopyMode)2) != (StreamCopyMode)0)
{
stream2.Write(this.Buffer, 0, this.bytesRead);
copyStage = ProxyStreamCopy.CopyStage.BeginRead;
asyncResult = null;
flag = true;
}
else
{
IAsyncResult asyncResult3 = stream2.BeginWrite(this.Buffer, 0, this.bytesRead, new AsyncCallback(ProxyStreamCopy.WriteCallback), this);
if (!asyncResult3.CompletedSynchronously)
{
goto IL_158;
}
copyStage = ProxyStreamCopy.CopyStage.EndWrite;
asyncResult = asyncResult3;
flag = true;
}
if (!flag)
{
return(true);
}
}
this.completedSynchronously = false;
return(false);
IL_158:
this.completedSynchronously = false;
return(false);
}
