InternetReadFile 100% cpu usage

Hi,

im using InternetReadFile win api function on this url : http://fotball.aftenposten.no/tv/article77811.ece
from some reason the last chunk im trying to read is stuck and cause 100% cpu utilization and doesn't seems to end, i did some google, and found out this kb from Microsoft: http://support.microsoft.com/kb/263754
 i tried what was recommended there and it didn't work, does anyone has new idea about it ?

Thanks,
Amit



RelegenceAsked:
Who is Participating?
I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

Deepu AbrahamR & D Engineering ManagerCommented:
It's c learly written, 'The problem is caused by a bug in the InternetReadFile API. Under some conditions, InternetReadFile fails to detect a connection closure and still tries to read data from the socket. '

RESOLUTION
----------------
Because this problem only occurs when chunked encoding is used, you can disable chunked encoding to solve the problem. Because chunked encoding is not used with HTTP 1.0, you can work around this problem by using HTTP
1.0
To do so you must:
1. Specify HTTP/1.0 in the HttpOpenRequest API.
2. In Internet Explorer, from the Tools menu, click Internet Options, and then select the Advanced tab. Clear the Use HTTP 1.1 and Use HTTP 1.1 through proxy connections check boxes.

Did you try this?
Best Regards,
DeepuAbrahamK
0
RelegenceAuthor Commented:
of course i tried that,  :-)
0
Deepu AbrahamR & D Engineering ManagerCommented:
Read this also, if you are not able to specify the http version by using HttpOpenRequest().
http://support.microsoft.com/kb/258425/EN-US/
Best Regards,
DeepuAbrahamK
0
Exploring SharePoint 2016

Explore SharePoint 2016, the web-based, collaborative platform that integrates with Microsoft Office to provide intranets, secure document management, and collaboration so you can develop your online and offline capabilities.

itsmeandnobodyelseCommented:
I would assume it's another bug if the above doesn't help (you restarted the machine after changing to HTTP 1.1 Proxy?). Maybe a newer IE would solve the issue.

As a last resort you may put the call in a separate thread and set it to low priority. Then establish a watchdog which checks CPU and kills the thread if it runs into the infinite loop.

Regards, Alex
0

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
RelegenceAuthor Commented:
Guys, thanks you all for your quick responses,
i already tried  the "watchdog" option itsmeandnobodyelse suggested , this approach imposes another problem because there is not safe way to kill threads without causing memory leaks, i think the solution is here : http://www.codeproject.com/internet/asyncwininet.asp?df=100&forumid=1409&exp=0&select=975072

Amit

0
itsmeandnobodyelseCommented:
Amit, you shouldn't give C grade without further feedback. If you found the solution yourself you could tell the moderator and get points back. Or if you think that one or more comments have helped give a B grade which was appropriate. A C grade is appropriate if you asked for more help but didn't get it. Or if it was a really poor help such as "Help yourself and look at your sources".

I personally prefer to get no points rather than a C grade.

Regards, Alex
0
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
C++

From novice to tech pro — start learning today.