id,summary,reporter,owner,description,type,status,milestone,component,version,severity,resolution,keywords,cc
11964,asio async_resolve cannot be cancelled,sven_nilsson@…,chris_kohlhoff,"The asio '''async_resolve''' (both the udp and tcp resolver) is incorrectly implemented (on win32) as a '''synchronous resolve''' performed in a thread.

This has the unfortunate effect that, when the DNS server is not responding, the application will hang for ~20 seconds. The DNS operation is ongoing in the io_service, and thus the io_service destructor must wait for the thread to finish. I tried several methods in an effort to cancel it, but none worked.

Since the average user has approximately 5 seconds of patience with a non-responding application before killing it with task manager, I really think this needs to be fixed.",Bugs,new,To Be Determined,asio,Boost 1.59.0,Problem,,asio asynchronous DNS resolve,