PQstatus is not returning

"Sunil Khatri" <[email protected]>
Newsgroups gmane.comp.db.postgresql.interfaces
Message-ID <[email protected]> 
Hi,
In my application I need to check connection status before executing the query. I am doing it using PQstatus. 
Problem is : PQstatus is getting blocked If the system on which database server is running is powered off.
If I shutdown the database using pg_ctl stop or pkill -9 postmaster in that case its returning.

Is there any other way to check the connection status in this case?

Thanks 
Sk
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