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

How to implement HTTP connection timeout
Hi All,I would like to implement an HTTP connection timeout.

I am working on a application wh

include problem
I have my root folder as:
Code: $root = $_SERVER["SITE_HTMLROOT"]; // the server root<

IMAGE - SERVER SIDE scripting help...
How to receive pixel data of an image and buid a bitmap file on the server using the HTTP POST metho

How to replace search button with link?
hi to everbody.
i have a search submit form and button like this :

<form id="f

Xacute search within SQL results
I have a query that is pulling data, and I want to return a specific value from the results of that

Transferring session variables into MySQL
I am trying to transfer $_SESSION variables into MySQL. However there is an error in my MySQL statem

mySQL and PHP search
Hello,
I am trying to code a project and ran into a brick wall with one of my pages. I am pretty

j1inmis Ouput layout changes
Hi,

Can anybody tell how can j1inmis output layout can be changed so that vendor names ge

Why does this file not return file names that start with numbers?
This file returns a list of filenames to help populate a drop down in my form. For some reason it ig

Selecting an "empty" date formated field
How do you select an "empty" date field? I've tried the few ways I can think.
SQL> select

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