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(use spiffy uri-common intarweb http-client spiffy-request-vars)
(declare (unit server))
(declare (uses common))
(declare (uses db))
(declare (uses tasks)) ;; tasks are where stuff is maintained about what is running.
(declare (uses http-transport))
(declare (uses zmq-transport))
(include "common_records.scm")
(include "db_records.scm")
(define (server:make-server-url hostport)
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(use spiffy uri-common intarweb http-client spiffy-request-vars)
(declare (unit server))
(declare (uses common))
(declare (uses db))
(declare (uses tasks)) ;; tasks are where stuff is maintained about what is running.
(declare (uses synchash))
(declare (uses http-transport))
(declare (uses zmq-transport))
(include "common_records.scm")
(include "db_records.scm")
(define (server:make-server-url hostport)
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;;======================================================================
;; S E R V E R
;;======================================================================
;; Call this to start the actual server
;;
(define *db:process-queue-mutex* (make-mutex))
;;======================================================================
;; S E R V E R U T I L I T I E S
;;======================================================================
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;;======================================================================
;; S E R V E R
;;======================================================================
;; Call this to start the actual server
;;
;; all routes though here end in exit ...
(define (server:launch transport)
(if (not *toppath*)
(if (not (setup-for-run))
(begin
(debug:print 0 "ERROR: cannot find megatest.config, exiting")
(exit))))
(debug:print-info 2 "Starting server using " transport " transport")
(set! *transport-type* transport)
(case transport
((fs) (exit)) ;; there is no "fs" transport
((http) (http-transport:launch))
((zmq) (zmq-transport:launch))
(else
(debug:print "WARNING: unrecognised transport " transport)
(exit))))
;;======================================================================
;; Q U E U E M A N A G E M E N T
;;======================================================================
;; We don't want to flush the queue if it was just flushed
(define *server:last-write-flush* (current-milliseconds))
;; Flush the queue every third of a second. Can we assume that setup-for-run
;; has already been done?
(define (server:write-queue-handler)
(if (setup-for-run)
(let ((db (open-db)))
(let loop ()
(let ((last-write-flush-time #f))
(mutex-lock! *incoming-mutex*)
(set! last-write-flush-time *server:last-write-flush*)
(mutex-unlock! *incoming-mutex*)
(if (> (- (current-milliseconds) last-write-flush-time) 400)
(begin
(mutex-lock! *db:process-queue-mutex*)
(db:process-cached-writes db)
(mutex-unlock! *db:process-queue-mutex*)
(thread-sleep! 0.5))))
(loop)))
(begin
(debug:print 0 "ERROR: failed to setup for Megatest in server:write-queue-handler")
(exit 1))))
;;======================================================================
;; S E R V E R U T I L I T I E S
;;======================================================================
;; Generate a unique signature for this server
(define (server:mk-signature)
(message-digest-string (md5-primitive)
(with-output-to-string
(lambda ()
(write (list (current-directory)
(argv)))))))
;; When using zmq this would send the message back (two step process)
;; with spiffy or rpc this simply returns the return data to be returned
;;
(define (server:reply return-addr query-sig success/fail result)
(debug:print-info 11 "server:reply return-addr=" return-addr ", result=" result)
;; (send-message pubsock target send-more: #t)
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