Enforce strong thread-affinity on StreamDNS sockets
Add a check that the isc__nm_streamdns_read(), isc__nm_streamdns_send(), and isc__nm_streamdns_close() are being called from the matching thread.
Edited by Ondřej Surý
Add a check that the isc__nm_streamdns_read(), isc__nm_streamdns_send(), and isc__nm_streamdns_close() are being called from the matching thread.