2436. [security] win32: UDP client handler can be shutdown. [RT #18576]
2434. [bug] Fixed a minor error-reporting bug in
lib/isc/win32/socket.c.
2432. [bug] More Windows socket handling improvements. Stop
using I/O events and use IO Completion Ports
throughout. Rewrite the receive path logic to make
it easier to support multiple simultaneous
requestrs in the future. Add stricter consistency
checking as a compile-time option (define
ISC_SOCKET_CONSISTENCY_CHECKS; defaults to off).
2420. [bug] Windows socket handling cleanup. Let the io
completion event send out cancelled read/write
done events, which keeps us from writing to memeory
we no longer have ownership of. Add debugging
socket_log() function. Rework TCP socket handling
to not leak sockets.
