Async WSAConnect failed on XP with error code = 2 ("File not found")


Posted on 16th Feb 2014 07:03 pm by admin

Hi all,

I have very strange bug, please help me if you can.

Did you know?Explore Trending and Topic pages for more stories like this.
It is reproduced only on these conditions : WinXP, VS2005, VS2008, build in debug, execute without debugging.

On any other configuration or OS this code works fine.
Also works ok with old VC6.0.
I Tested it also on another XP just in case, same behavior.

I've isolated problematic code in a simple console application (no threads etc).
Just putting :
WSAEventSelect(...., FD_CONNECT | FD_READ | FD_CLOSE)
before WSAConnect, and WSAConnect will fail with error code 2 (means : File not found).
Which is not described in MSDN...also this is fail code when it really cannot connect (server is down or invalid).

If I remove WSAEventSelect (i.e. sync connect) all works.
If I debug code, all works.
If I put break point on WSAConnect line and run this app outside studio, then reach this breakpoint (start debugging) and step through WSAConnect WITH debugger it works....

I'm unable to find anything in the net about this strange behavior.
Also I'm trying to connect to FTP server, which works fine.
I'm attaching full code. It only test WSAConnect in async mode, nothing more.

10x,
Filip
No comments posted yet

Your Answer:

Login to answer
107 Like 25 Dislike
Previous forums Next forums
Other forums

Using real time in php
I'm very average at PHP and im looking to introduce time to something on my site.
Its a sports si

Searching keywords from array
Hello everyone, Im just wondering if someone could help me with another issue im having. Im still le

Help on Order Entry Form/System Where is best to begin.
I have a dilema and a very short amount of time at this point and I'm looking for some help on decid

Check premium expire
Hi,

I am making a simple file hosting site and want to check if users premium subscriptions h

xApp Analytics in BI 7.0
Dear all,

I am trying to implement xApp Analytics in BI 7.0. After I installed the analyt

How to have a log of all the status a VIM document had been ?
Hi guys,

I’m using SAP Invoice Management plugin and the /OPT/VIM_ANALYTICS transa

how to remove in php string display
My code is $message="We're looking at developing our website."; $body= "My mess

Syntax Help
I'm trying to make a form that edits a php file which contains config settings. I'm using strings t

All possible combinations of Strings from table in PL/SQL
Hi,

I am trying to figure out how to build a list of all possible string combinations fro

parameter passing issue on function
Well I thought I had created a pretty slick web page, using ?page and $_GET to load pages which wher

Sign up to write
Sign up now if you have flare of writing..
Login   |   Register
Follow Us
Indyaspeak @ Facebook Indyaspeak @ Twitter Indyaspeak @ Pinterest RSS



Play Free Quiz and Win Cash