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.

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

my two tables
table1 : col1 = topicid , col2 = topic

table2 : col1 = sentid, col2 = sentence

Cod

If a form submits back to same page do you need to use $get
IM trying to pass page number and year that was selected back to the same page.

i have this c

Posting Serialized Data Not Working
I am trying to send an object from one PHP file to another using POST. I serialize the object and th

True way to see if action was successful?
If this is a good way to see if action was successful to continue:

Code: function changeGa

My XSRF Prevention code isn't working
First of all, thanks for the generous help you guys have given me in the past on this forum.
Seco

HTML Viewer HIDE scrollbar
How can I disable scrollbars in a HTML Viewer control? I can't hide them. Even i have enough space b

Calculus Help (and by help I mean homework)
Hrmmm, I hate posting about math homework, partly because it's homework, and partly because I hate w

Count of reciepients in php mailer
How can i sent a mail to large no of reciepients say 10,00,00 Using PHP MAILER

Generate multilayered array from string.
ok so i have a string that looks like this:
Code: [Select]blog:edit_all,delete_all|users:edit_all

Windows 7
Windows 7 default user account control worries experts. Corporate IT departments should be pleased w

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