Debugging CFNetwork based application

Hello.
I am developing an application with CFNetwork and I face quite strange issue: FIN packet is sent to the remote server immediately after packet with http request is sent, or FIN packet is sent later during transmission of the response body (before whole body is received). I tried to investigate my code for misplaced closes of CFReadStream or other issues, but so far with no success. Are there any recommendations for debugging of CFNetwork based applications? Can I for example force CFNetwork to write some logging messages?
Thanks,
__faramir

__faramir wrote:
Are there any recommendations for debugging of CFNetwork based applications?
Don't do it? Seriously, unless you are writing code where you have to pay attention to such things, you are coding at far too low a level. Since you mentioned things like "http" and "the remote server", that certainly sounds like it is the case. Look for some higher-level interfaces.

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