blocking function

[Amit Sebiz]

hi, i am using dnsquery api function to query the mx record, what it seems to me as blocking my application. Is there any alternative or solution.

[j0nas]

I did just look through the DNS API and I couldn't see any support for asynchronous calls or setting a timeout.

I would start thread and call it from the thread. Then you can implement your own timeout by using WaitForSingleObject on the thread handle (from the calling thread).

[Amit Sebiz]

Can you provide some sample code please how timeout can be implemented as after a particular period i have to kill the thread assuming that my DNS query failed.
I can't use terminate thread as it may induce resource leakage. And as call to api is blocking, how can i use WaitForSingleObject, please elaborate a bit.

[j0nas]

Sure, download attached ZIP file.

[j0nas]

Hmm... There is a small design error in the attached code in my previous post. I don't know if this error will show up (it never did for me), but the correction is to let the thread release parameters upon timeout. This is of course a bit tricky, becuase the thead must then know about the timeout (that it happened).