Overview
| Comment: | Improved timeout handling in client/server communication |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | v1.54 |
| Files: | files | file ages | folders |
| SHA1: |
be36b8399ed7f2c50d47744cba1d6d5e |
| User & Date: | mrwellan on 2013-05-08 10:58:58 |
| Other Links: | branch diff | manifest | tags |
Context
|
2013-05-08
| ||
| 11:43 | Changed from fork to system for starting servers check-in: 2d3bd1949e user: mrwellan tags: v1.54, v1.5423 | |
| 10:58 | Improved timeout handling in client/server communication check-in: be36b8399e user: mrwellan tags: v1.54 | |
| 00:42 | Merged in refactoring of http-transport check-in: 8c3d4217c8 user: matt tags: v1.54 | |
Changes
Modified http-transport.scm from [f8890a14ba] to [a0df22408b].
| ︙ | ︙ | |||
168 169 170 171 172 173 174 | ;; (system "megatest -list-servers | grep alive || megatest -server - -daemonize && sleep 4") ;; <html> ;; <head></head> ;; <body>1 Hello, world! Goodbye Dolly</body></html> ;; Send msg to serverdat and receive result | | < | | > > > > > > | > | 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 |
;; (system "megatest -list-servers | grep alive || megatest -server - -daemonize && sleep 4")
;; <html>
;; <head></head>
;; <body>1 Hello, world! Goodbye Dolly</body></html>
;; Send msg to serverdat and receive result
(define (http-transport:client-send-receive serverdat msg #!key (numretries 10))
(let* (;; (url (http-transport:make-server-url serverdat))
(fullurl (caddr serverdat)) ;; (conc url "/ctrl")) ;; (conc url "/?dat=" msg)))
(res #f))
(handle-exceptions
exn
(begin
(print "ERROR IN http-transport:client-send-receive " ((condition-property-accessor 'exn 'message) exn))
(thread-sleep! 2)
(if (> numretries 0)
(http-transport:client-send-receive serverdat msg numretries: (- numretries 1))))
(begin
(debug:print-info 11 "fullurl=" fullurl "\n")
;; set up the http-client here
(max-retry-attempts 5)
;; consider all requests indempotent
(retry-request? (lambda (request)
#t)) ;; (thread-sleep! (/ (if (> numretries 100) 100 numretries) 10))
;; (set! numretries (- numretries 1))
;; #t))
;; send the data and get the response
;; extract the needed info from the http data and
;; process and return it.
(let* ((send-recieve (lambda ()
(mutex-lock! *http-mutex*)
(set! res (with-input-from-request
fullurl
(list (cons 'dat msg))
read-string))
(close-all-connections!)
(mutex-unlock! *http-mutex*)))
(time-out (lambda ()
(thread-sleep! 5)
(if (not res)
(begin
(debug:print 0 "WARNING: communication with the server timed out.")
(mutex-unlock! *http-mutex*)
(http-transport:client-send-receive serverdat msg numretries: (- numretries 1))
(if (< numtries 3) ;; on last try just exit
(begin
(debug:print 0 "ERROR: communication with the server timed out. Giving up.")
(exit 1)))))))
(th1 (make-thread send-recieve "with-input-from-request"))
(th2 (make-thread time-out "time out")))
(thread-start! th1)
(thread-start! th2)
(thread-join! th1)
(thread-terminate! th2)
(debug:print-info 11 "got res=" res)
|
| ︙ | ︙ |
Modified megatest-version.scm from [1d5c2e236b] to [a6faf256ba].
1 2 3 4 5 | ;; Always use two digit decimal ;; 1.01, 1.02...1.10,1.11 ... 1.99,2.00.. (declare (unit megatest-version)) | | | 1 2 3 4 5 6 7 | ;; Always use two digit decimal ;; 1.01, 1.02...1.10,1.11 ... 1.99,2.00.. (declare (unit megatest-version)) (define megatest-version 1.5423) |