Hi
I just upgraded to Delphi 11.3 and last version (.1559) of suite RO
I recompiled my app but now in some functions reaise this exception:
Error reading parameter Result: Stream read error: Invalid string length “1560669”’
The same source code application with remobjects .1553 and Delphi 11.2 work fine without problems.
Do you have any pointers?
Thank you very much
Claudio
Hi,
I installed version .1553 in Delphi 11.3 and now no more exceptions are raised.
At this point version .1559 has a problem.
Unfortunately at this moment I’m full but let me know if I can help you in any way
Claudio
Hi,
I can’t reproduce this issue with the MegaDemo sample.
Can you create a simple testcase that reproduces this case, pls?
You can drop it to support@ for keeping privacy
Hi EvgenyK
it is not easy to extrapolate a test case from the app as it is very large and the error occurs on a logic where a series of operations are performed in the background
But I found that:
the error occurs when opening a TDAMemeDataTable which contains a blob field. This field has a size of about 1.5 Mb. If I empty the field, the error no longer occurs (database Oracle 11 and UniDAC)
The error is raised in the uROStreamSerializer unit in the TROStreamSerializer.ReadBinary method when check this:
if l_size > fStream.Size then RaiseError(err_InvalidStringLength, [l_size]);
l_size is greater of fStream.Size.
Another operation after open the datatable is, in asynchronous on a separate thread, the reception of an array of TROComplexTypes which return a series of images
The same application in RO .1553 work without problems.
I don’t know if you get any more information with this. Tomorrow, if you need, I’ll do some more specific tests
Best regards
Claudio
Hi,
can you send “broken” stream to support@ for investigation, pls?
Hi EvgenyK
here two screenshots for the same operation:
.1553 version:
.1559 version
l_size is the same but fStream.size no.
I try to save two stream and send to you
Thank you very much
Claudio
Hi EvgenyK
sended!
Thank you very much!!
Claudio
Hi,
interesting.
if I compare both streams as binary - stream from .1559 is just truncated.
what server/client channel you are using?
Hi
Server: TROHTTPServer
Client: TROWinInetHTTPChannel
Claudio
Hi,
What mode of TROHTTPServer are you using - http or https?
if you temporary replace this server with any other (e.g. Indy- or Synapse-based), behavior will be reproduced?
what event you are used for saving stream? I don’t see RO107 signature …
I can recommend to use
Hi
Good question!!! In debug http. In production https and WORK!!!. in https everything works fine. Only in http the exception is thrown!
In debug I saved the fStream (unit uROStreamSeerializer method ReadBinary row 810)
TMemoryStream(fStream).SaveToFile('d:\1559.stream');
I try to save server side streams in http and https and send them to you
Thank you very much
Claudio
Hi EvgenyK
I sended the streams saved from the server and the sizes are the same
Hi,
Can you save incoming stream with the BinMessage.OnReadFromStream event on client-side, pls?
Sent 
Hi,
can you save stream in the TROWinInetHttpChannel.OnReceiveStream event, pls?
Sent