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;; along with Megatest. If not, see <http://www.gnu.org/licenses/>.
(declare (unit nmsg-transport))
(module
nmsg-transport
(
*
(define (start-server portnum )
(let ((rep (nn-socket 'rep)))
(handle-exceptions
exn
(let ((emsg ((condition-property-accessor 'exn 'message) exn)))
(print "ERROR: Failed to start server \"" emsg "\"")
#f)
(nn-bind rep (conc "tcp://*:" portnum)))
rep))
;; open connection to server, send message, close connection
;;
;; to take an action on failure use proc which is called with the error info
;; (proc exn errormsg)
;;
(define (open-send-close host-port msg attrib #!key (timeout 3)(proc #f)) ;; default timeout is 3 seconds
(let ((req (nn-socket 'req))
(uri (conc "tcp://" host-port))
(res #f)
;; (contacts (alist-ref 'contact attrib))
(mode (alist-ref 'mode attrib)))
(handle-exceptions
exn
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;; along with Megatest. If not, see <http://www.gnu.org/licenses/>.
(declare (unit nmsg-transport))
(module
nmsg-transport
(
nmsg:start-server
nmsg:open-send-close
nmsg:open-send-receive
)
(import scheme posix chicken data-structures ports)
(use pkts)
(use nanomsg srfi-18)
;;start a server, returns the connection
;;
(define (nmsg:start-server portnum )
(let ((rep (nn-socket 'rep)))
(handle-exceptions
exn
(let ((emsg ((condition-property-accessor 'exn 'message) exn)))
(print "ERROR: Failed to start server \"" emsg "\"")
#f)
(nn-bind rep (conc "tcp://*:" portnum)))
rep))
;; open connection to server, send message, close connection
;;
;; to take an action on failure use proc which is called with the error info
;; (proc exn errormsg)
;;
(define (nmsg:open-send-close host-port msg attrib #!key (timeout 3)(proc #f)) ;; default timeout is 3 seconds
(let ((req (nn-socket 'req))
(uri (conc "tcp://" host-port))
(res #f)
;; (contacts (alist-ref 'contact attrib))
(mode (alist-ref 'mode attrib)))
(handle-exceptions
exn
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(thread-start! th1)
(thread-start! th2)
(thread-join! th1)
res))))
;; default timeout is 3 seconds
;;
(define (open-send-receive host-port msg attrib #!key (timeout 3)(proc #f))
(let ((req (nn-socket 'req))
(uri (conc "tcp://" host-port))
(res #f)
(mode (alist-ref 'mode attrib)))
(handle-exceptions
exn
(let ((emsg ((condition-property-accessor 'exn 'message) exn)))
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(thread-start! th1)
(thread-start! th2)
(thread-join! th1)
res))))
;; default timeout is 3 seconds
;;
(define (nmsg:open-send-receive host-port msg attrib #!key (timeout 3)(proc #f))
(let ((req (nn-socket 'req))
(uri (conc "tcp://" host-port))
(res #f)
(mode (alist-ref 'mode attrib)))
(handle-exceptions
exn
(let ((emsg ((condition-property-accessor 'exn 'message) exn)))
|