.net - Determine remote device endpoint UDP Clojure CLR -

trying perform equivalent c# code in clojure clr

using system.net; ipendpoint sender = new ipendpoint(ipaddress.any, 0); endpoint remote = (endpoint) sender; recv = sock.receivefrom(data, ref remote); 

what i've tried in clojure not work:

(let [       sender (ipendpoint. (ipaddress/any) 0)       ^endpoint remote ^endpoint sender       recv (.receivefrom sock data (by-ref remote))       ]       (println (.tostring remote))       ;; data...  ) 

it shows 0.0.0.0:0 i'm thinking ref not working not sure of hint / cast syntax.

i've looked @ here info on ref https://github.com/richhickey/clojure-clr/wiki/clr-interop , here specifying types: https://github.com/clojure/clojure-clr/wiki/specifying-types

i translated msdn article cited in comments on question.

(ns test.me     (:import [system.net iphostentry dns ipendpoint endpoint ipaddress]              [system.net.sockets socket sockettype protocoltype]))  (set! *warn-on-reflection* true)  (defn f []    (let [hostentry (dns/gethostentry (dns/gethostname))          endpoint (ipendpoint. ^ipaddress (first (.addresslist hostentry)) 11000)          sender (ipendpoint. (ipaddress/ipv6any) 0)          msg (byte-array 256)]             (with-open [s (socket. (.addressfamily (.address endpoint))                             sockettype/dgram                             protocoltype/udp)]        (.bind s endpoint)        (.receivefrom s  msg (by-ref sender))        (println sender)))) 

running yields:

>clojure.main.exe clojure 1.7.0-master-snapshot user=> (load "/test/me") nil user=> (in-ns 'test.me) #object[namespace 0xaca85c "test.me"] test.me=> (f) #object[ipendpoint 0x2126697 [fefe::3030:cfdf:f7f7:ecec%11]:55056] nil 

(ip address edited)

you might need adjust ipaddress/ipv6any system.

the with-open form used automatically close socket upon exit.

note few type hints (one, actually) needed. have turned on reflection warnings -- that's best way determine if need more hints. (in case, without ^ipaddress type hint, loading fails error because cannot resolve ipendpoint constructor.)