Resolved: The issue came from AVAST antivirus, which is altering the connection content in some way. When Avast is deactivated: no more error When Avast agent are activated: - some tcp packets get altered, leading to unstable state in ICS http server post request processing - some connections are dropped, leading to 10061 error, when multiple connections are open in parallel threads Avast version was: 8.0.1489. Updated to latest version (8.0.1497) with same issue! The issue is systematically reproducible.
Glad that the issue was not in ICS code, as I have strong expectations on it! Be aware that even if not the responsibility of ICS code, Avast can block or alter connection and trigger invalid states on server side, which is annoying as it is widely spreaded Thanks & regards, Laurent ________________________________ De : François Piette <francois.pie...@skynet.be> À : 'ICS support mailing' <twsocket@lists.elists.org> Envoyé le : Samedi 12 octobre 2013 11h01 Objet : Re: [twsocket] Post data lost Hello Laurent, As far as I can see, your code is working properly. Client always display "NNN> Request OK with answer: 20" with NNN being the request number. Server always display: PostDocument: NNN Before answer: PostDocument=NNN PostedData=NNN-1 PostedData: NNN Having NNN the request number. It also display "Breakpoint on lost data here!" for all requests except the first. This is normal behavior of your code since you display this message if OTADeltaCount is > 1 and you only increment OTADeltaCount global variable. Btw: You should not use global variable. I compiled your application using XE5 and ICS-V8 released (not using the copy of ICS files you sent). -- francois.pie...@overbyte.be Embarcadero MVP http://www.overbyte.be http://francois-piette.blogspot.com -----Message d'origine----- De : TWSocket [mailto:twsocket-boun...@lists.elists.org] De la part de Laurent Breysse Envoyé : vendredi 11 octobre 2013 17:18 À : tw >> ICS support mailing Objet : [twsocket] Post data lost Hello, When testing my webservice I saw that POST data could be lost: the OnPostedData handler of the http server component is never called, despite the hgAcceptData set in OnPostDocument. I have reproduced this issue with a simple http server, based on the WebServ sample The use case: repeated sequential posts sent with a indy client component, with a basic query string (56 bytes long) Most POST are correctly handled, but some are simply dropped. In ICS code, the issue leads to the THttpConnection.ConnectionDataSent method: on line 4565 (v8 gold release), FState is reset to hcRequest On the following line, the comment { no stream usually means just a header string has been sent } is wrong in this case, a querystring has been sent. FDocSize equals 0 at this time. Next, in THttpConnection.ParseRequest, the FMethod is then initialized with the content of the query string (the above 56 bytes) I'm new to ICS so I was not able to push further the analysis. No clue if this a bug, I could simply provide sample code to reproduce the issue. Any advise welcome, Regards, Laurent -- To unsubscribe or change your settings for TWSocket mailing list please goto http://lists.elists.org/cgi-bin/mailman/listinfo/twsocket Visit our website at http://www.overbyte.be -- To unsubscribe or change your settings for TWSocket mailing list please goto http://lists.elists.org/cgi-bin/mailman/listinfo/twsocket Visit our website at http://www.overbyte.be -- To unsubscribe or change your settings for TWSocket mailing list please goto http://lists.elists.org/cgi-bin/mailman/listinfo/twsocket Visit our website at http://www.overbyte.be
