Artifact
b6cfd8a4e32ebcc8aeebb665130c7f6d3c2443a6:
0000: 0a 3b 3b 20 43 6f 70 79 72 69 67 68 74 20 32 30 .;; Copyright 20
0010: 30 36 2d 32 30 31 32 2c 20 4d 61 74 74 68 65 77 06-2012, Matthew
0020: 20 57 65 6c 6c 61 6e 64 2e 0a 3b 3b 20 0a 3b 3b Welland..;; .;;
0030: 20 20 54 68 69 73 20 70 72 6f 67 72 61 6d 20 69 This program i
0040: 73 20 6d 61 64 65 20 61 76 61 69 6c 61 62 6c 65 s made available
0050: 20 75 6e 64 65 72 20 74 68 65 20 47 4e 55 20 47 under the GNU G
0060: 50 4c 20 76 65 72 73 69 6f 6e 20 32 2e 30 20 6f PL version 2.0 o
0070: 72 0a 3b 3b 20 20 67 72 65 61 74 65 72 2e 20 53 r.;; greater. S
0080: 65 65 20 74 68 65 20 61 63 63 6f 6d 70 61 6e 79 ee the accompany
0090: 69 6e 67 20 66 69 6c 65 20 43 4f 50 59 49 4e 47 ing file COPYING
00a0: 20 66 6f 72 20 64 65 74 61 69 6c 73 2e 0a 3b 3b for details..;;
00b0: 20 0a 3b 3b 20 20 54 68 69 73 20 70 72 6f 67 72 .;; This progr
00c0: 61 6d 20 69 73 20 64 69 73 74 72 69 62 75 74 65 am is distribute
00d0: 64 20 57 49 54 48 4f 55 54 20 41 4e 59 20 57 41 d WITHOUT ANY WA
00e0: 52 52 41 4e 54 59 3b 20 77 69 74 68 6f 75 74 20 RRANTY; without
00f0: 65 76 65 6e 20 74 68 65 0a 3b 3b 20 20 69 6d 70 even the.;; imp
0100: 6c 69 65 64 20 77 61 72 72 61 6e 74 79 20 6f 66 lied warranty of
0110: 20 4d 45 52 43 48 41 4e 54 41 42 49 4c 49 54 59 MERCHANTABILITY
0120: 20 6f 72 20 46 49 54 4e 45 53 53 20 46 4f 52 20 or FITNESS FOR
0130: 41 20 50 41 52 54 49 43 55 4c 41 52 0a 3b 3b 20 A PARTICULAR.;;
0140: 20 50 55 52 50 4f 53 45 2e 0a 0a 28 72 65 71 75 PURPOSE...(requ
0150: 69 72 65 2d 65 78 74 65 6e 73 69 6f 6e 20 28 73 ire-extension (s
0160: 72 66 69 20 31 38 29 20 65 78 74 72 61 73 20 74 rfi 18) extras t
0170: 63 70 20 73 31 31 6e 29 0a 0a 28 75 73 65 20 73 cp s11n)..(use s
0180: 72 66 69 2d 31 20 70 6f 73 69 78 20 72 65 67 65 rfi-1 posix rege
0190: 78 20 72 65 67 65 78 2d 63 61 73 65 20 73 72 66 x regex-case srf
01a0: 69 2d 36 39 20 68 6f 73 74 69 6e 66 6f 20 6d 64 i-69 hostinfo md
01b0: 35 20 6d 65 73 73 61 67 65 2d 64 69 67 65 73 74 5 message-digest
01c0: 29 0a 3b 3b 20 28 75 73 65 20 7a 6d 71 29 0a 0a ).;; (use zmq)..
01d0: 28 75 73 65 20 73 70 69 66 66 79 20 75 72 69 2d (use spiffy uri-
01e0: 63 6f 6d 6d 6f 6e 20 69 6e 74 61 72 77 65 62 20 common intarweb
01f0: 68 74 74 70 2d 63 6c 69 65 6e 74 20 73 70 69 66 http-client spif
0200: 66 79 2d 72 65 71 75 65 73 74 2d 76 61 72 73 29 fy-request-vars)
0210: 0a 0a 28 64 65 63 6c 61 72 65 20 28 75 6e 69 74 ..(declare (unit
0220: 20 73 65 72 76 65 72 29 29 0a 0a 28 64 65 63 6c server))..(decl
0230: 61 72 65 20 28 75 73 65 73 20 63 6f 6d 6d 6f 6e are (uses common
0240: 29 29 0a 28 64 65 63 6c 61 72 65 20 28 75 73 65 )).(declare (use
0250: 73 20 64 62 29 29 0a 28 64 65 63 6c 61 72 65 20 s db)).(declare
0260: 28 75 73 65 73 20 74 61 73 6b 73 29 29 20 3b 3b (uses tasks)) ;;
0270: 20 74 61 73 6b 73 20 61 72 65 20 77 68 65 72 65 tasks are where
0280: 20 73 74 75 66 66 20 69 73 20 6d 61 69 6e 74 61 stuff is mainta
0290: 69 6e 65 64 20 61 62 6f 75 74 20 77 68 61 74 20 ined about what
02a0: 69 73 20 72 75 6e 6e 69 6e 67 2e 0a 28 64 65 63 is running..(dec
02b0: 6c 61 72 65 20 28 75 73 65 73 20 73 79 6e 63 68 lare (uses synch
02c0: 61 73 68 29 29 0a 28 64 65 63 6c 61 72 65 20 28 ash)).(declare (
02d0: 75 73 65 73 20 68 74 74 70 2d 74 72 61 6e 73 70 uses http-transp
02e0: 6f 72 74 29 29 0a 3b 3b 20 28 64 65 63 6c 61 72 ort)).;; (declar
02f0: 65 20 28 75 73 65 73 20 7a 6d 71 2d 74 72 61 6e e (uses zmq-tran
0300: 73 70 6f 72 74 29 29 0a 28 64 65 63 6c 61 72 65 sport)).(declare
0310: 20 28 75 73 65 73 20 64 61 65 6d 6f 6e 29 29 0a (uses daemon)).
0320: 0a 28 69 6e 63 6c 75 64 65 20 22 63 6f 6d 6d 6f .(include "commo
0330: 6e 5f 72 65 63 6f 72 64 73 2e 73 63 6d 22 29 0a n_records.scm").
0340: 28 69 6e 63 6c 75 64 65 20 22 64 62 5f 72 65 63 (include "db_rec
0350: 6f 72 64 73 2e 73 63 6d 22 29 0a 0a 28 64 65 66 ords.scm")..(def
0360: 69 6e 65 20 28 73 65 72 76 65 72 3a 6d 61 6b 65 ine (server:make
0370: 2d 73 65 72 76 65 72 2d 75 72 6c 20 68 6f 73 74 -server-url host
0380: 70 6f 72 74 29 0a 20 20 28 69 66 20 28 6e 6f 74 port). (if (not
0390: 20 68 6f 73 74 70 6f 72 74 29 0a 20 20 20 20 20 hostport).
03a0: 20 23 66 0a 20 20 20 20 20 20 28 63 6f 6e 63 20 #f. (conc
03b0: 22 68 74 74 70 3a 2f 2f 22 20 28 63 61 72 20 68 "http://" (car h
03c0: 6f 73 74 70 6f 72 74 29 20 22 3a 22 20 28 63 61 ostport) ":" (ca
03d0: 64 72 20 68 6f 73 74 70 6f 72 74 29 29 29 29 0a dr hostport)))).
03e0: 0a 28 64 65 66 69 6e 65 20 20 2a 73 65 72 76 65 .(define *serve
03f0: 72 2d 6c 6f 6f 70 2d 68 65 61 72 74 2d 62 65 61 r-loop-heart-bea
0400: 74 2a 20 28 63 75 72 72 65 6e 74 2d 73 65 63 6f t* (current-seco
0410: 6e 64 73 29 29 0a 28 64 65 66 69 6e 65 20 2a 68 nds)).(define *h
0420: 65 61 72 74 62 65 61 74 2d 6d 75 74 65 78 2a 20 eartbeat-mutex*
0430: 28 6d 61 6b 65 2d 6d 75 74 65 78 29 29 0a 0a 3b (make-mutex))..;
0440: 3b 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d ;===============
0450: 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d ================
0460: 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d ================
0470: 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d ================
0480: 3d 3d 3d 3d 3d 3d 3d 0a 3b 3b 20 53 20 45 20 52 =======.;; S E R
0490: 20 56 20 45 20 52 0a 3b 3b 3d 3d 3d 3d 3d 3d 3d V E R.;;=======
04a0: 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d ================
04b0: 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d ================
04c0: 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d ================
04d0: 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 0a ===============.
04e0: 0a 3b 3b 20 43 61 6c 6c 20 74 68 69 73 20 74 6f .;; Call this to
04f0: 20 73 74 61 72 74 20 74 68 65 20 61 63 74 75 61 start the actua
0500: 6c 20 73 65 72 76 65 72 0a 3b 3b 0a 0a 3b 3b 20 l server.;;..;;
0510: 61 6c 6c 20 72 6f 75 74 65 73 20 74 68 6f 75 67 all routes thoug
0520: 68 20 68 65 72 65 20 65 6e 64 20 69 6e 20 65 78 h here end in ex
0530: 69 74 20 2e 2e 2e 0a 28 64 65 66 69 6e 65 20 28 it ....(define (
0540: 73 65 72 76 65 72 3a 6c 61 75 6e 63 68 20 74 72 server:launch tr
0550: 61 6e 73 70 6f 72 74 29 0a 20 20 28 69 66 20 28 ansport). (if (
0560: 6e 6f 74 20 2a 74 6f 70 70 61 74 68 2a 29 0a 20 not *toppath*).
0570: 20 20 20 20 20 28 69 66 20 28 6e 6f 74 20 28 73 (if (not (s
0580: 65 74 75 70 2d 66 6f 72 2d 72 75 6e 29 29 0a 09 etup-for-run))..
0590: 20 20 28 62 65 67 69 6e 0a 09 20 20 20 20 28 64 (begin.. (d
05a0: 65 62 75 67 3a 70 72 69 6e 74 20 30 20 22 45 52 ebug:print 0 "ER
05b0: 52 4f 52 3a 20 63 61 6e 6e 6f 74 20 66 69 6e 64 ROR: cannot find
05c0: 20 6d 65 67 61 74 65 73 74 2e 63 6f 6e 66 69 67 megatest.config
05d0: 2c 20 65 78 69 74 69 6e 67 22 29 0a 09 20 20 20 , exiting")..
05e0: 20 28 65 78 69 74 29 29 29 29 0a 20 20 28 64 65 (exit)))). (de
05f0: 62 75 67 3a 70 72 69 6e 74 2d 69 6e 66 6f 20 32 bug:print-info 2
0600: 20 22 53 74 61 72 74 69 6e 67 20 73 65 72 76 65 "Starting serve
0610: 72 20 75 73 69 6e 67 20 22 20 74 72 61 6e 73 70 r using " transp
0620: 6f 72 74 20 22 20 74 72 61 6e 73 70 6f 72 74 22 ort " transport"
0630: 29 0a 20 20 28 73 65 74 21 20 2a 74 72 61 6e 73 ). (set! *trans
0640: 70 6f 72 74 2d 74 79 70 65 2a 20 74 72 61 6e 73 port-type* trans
0650: 70 6f 72 74 29 0a 20 20 28 63 61 73 65 20 74 72 port). (case tr
0660: 61 6e 73 70 6f 72 74 0a 20 20 20 20 28 28 66 73 ansport. ((fs
0670: 29 20 20 20 28 65 78 69 74 29 29 20 3b 3b 20 74 ) (exit)) ;; t
0680: 68 65 72 65 20 69 73 20 6e 6f 20 22 66 73 22 20 here is no "fs"
0690: 73 65 72 76 65 72 20 74 72 61 6e 73 70 6f 72 74 server transport
06a0: 0a 20 20 20 20 28 28 68 74 74 70 29 20 28 68 74 . ((http) (ht
06b0: 74 70 2d 74 72 61 6e 73 70 6f 72 74 3a 6c 61 75 tp-transport:lau
06c0: 6e 63 68 29 29 0a 20 20 20 20 28 28 7a 6d 71 29 nch)). ((zmq)
06d0: 20 20 28 7a 6d 71 2d 74 72 61 6e 73 70 6f 72 74 (zmq-transport
06e0: 3a 6c 61 75 6e 63 68 29 29 0a 20 20 20 20 28 65 :launch)). (e
06f0: 6c 73 65 0a 20 20 20 20 20 28 64 65 62 75 67 3a lse. (debug:
0700: 70 72 69 6e 74 20 22 57 41 52 4e 49 4e 47 3a 20 print "WARNING:
0710: 75 6e 72 65 63 6f 67 6e 69 73 65 64 20 74 72 61 unrecognised tra
0720: 6e 73 70 6f 72 74 20 22 20 74 72 61 6e 73 70 6f nsport " transpo
0730: 72 74 29 0a 20 20 20 20 20 28 65 78 69 74 29 29 rt). (exit))
0740: 29 29 0a 0a 3b 3b 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d ))..;;==========
0750: 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d ================
0760: 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d ================
0770: 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d ================
0780: 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 0a 3b 3b 20 ============.;;
0790: 51 20 55 20 45 20 55 20 45 20 20 20 4d 20 41 20 Q U E U E M A
07a0: 4e 20 41 20 47 20 45 20 4d 20 45 20 4e 20 54 0a N A G E M E N T.
07b0: 3b 3b 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d ;;==============
07c0: 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d ================
07d0: 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d ================
07e0: 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d ================
07f0: 3d 3d 3d 3d 3d 3d 3d 3d 0a 0a 3b 3b 20 57 65 20 ========..;; We
0800: 64 6f 6e 27 74 20 77 61 6e 74 20 74 6f 20 66 6c don't want to fl
0810: 75 73 68 20 74 68 65 20 71 75 65 75 65 20 69 66 ush the queue if
0820: 20 69 74 20 77 61 73 20 6a 75 73 74 20 66 6c 75 it was just flu
0830: 73 68 65 64 0a 28 64 65 66 69 6e 65 20 2a 73 65 shed.(define *se
0840: 72 76 65 72 3a 6c 61 73 74 2d 77 72 69 74 65 2d rver:last-write-
0850: 66 6c 75 73 68 2a 20 28 63 75 72 72 65 6e 74 2d flush* (current-
0860: 6d 69 6c 6c 69 73 65 63 6f 6e 64 73 29 29 0a 0a milliseconds))..
0870: 3b 3b 20 46 6c 75 73 68 20 74 68 65 20 71 75 65 ;; Flush the que
0880: 75 65 20 65 76 65 72 79 20 74 68 69 72 64 20 6f ue every third o
0890: 66 20 61 20 73 65 63 6f 6e 64 2e 20 43 61 6e 20 f a second. Can
08a0: 77 65 20 61 73 73 75 6d 65 20 74 68 61 74 20 73 we assume that s
08b0: 65 74 75 70 2d 66 6f 72 2d 72 75 6e 20 0a 3b 3b etup-for-run .;;
08c0: 20 68 61 73 20 61 6c 72 65 61 64 79 20 62 65 65 has already bee
08d0: 6e 20 64 6f 6e 65 3f 0a 28 64 65 66 69 6e 65 20 n done?.(define
08e0: 28 73 65 72 76 65 72 3a 77 72 69 74 65 2d 71 75 (server:write-qu
08f0: 65 75 65 2d 68 61 6e 64 6c 65 72 29 0a 20 20 28 eue-handler). (
0900: 69 66 20 28 73 65 74 75 70 2d 66 6f 72 2d 72 75 if (setup-for-ru
0910: 6e 29 0a 20 20 20 20 20 20 28 6c 65 74 20 28 28 n). (let ((
0920: 64 62 20 28 6f 70 65 6e 2d 64 62 29 29 29 0a 09 db (open-db)))..
0930: 28 6c 65 74 20 6c 6f 6f 70 20 28 29 0a 09 20 20 (let loop ()..
0940: 28 6c 65 74 20 28 28 6c 61 73 74 2d 77 72 69 74 (let ((last-writ
0950: 65 2d 66 6c 75 73 68 2d 74 69 6d 65 20 23 66 29 e-flush-time #f)
0960: 29 0a 09 20 20 20 20 28 6d 75 74 65 78 2d 6c 6f ).. (mutex-lo
0970: 63 6b 21 20 2a 69 6e 63 6f 6d 69 6e 67 2d 6d 75 ck! *incoming-mu
0980: 74 65 78 2a 29 0a 09 20 20 20 20 28 73 65 74 21 tex*).. (set!
0990: 20 6c 61 73 74 2d 77 72 69 74 65 2d 66 6c 75 73 last-write-flus
09a0: 68 2d 74 69 6d 65 20 2a 73 65 72 76 65 72 3a 6c h-time *server:l
09b0: 61 73 74 2d 77 72 69 74 65 2d 66 6c 75 73 68 2a ast-write-flush*
09c0: 29 0a 09 20 20 20 20 28 6d 75 74 65 78 2d 75 6e ).. (mutex-un
09d0: 6c 6f 63 6b 21 20 2a 69 6e 63 6f 6d 69 6e 67 2d lock! *incoming-
09e0: 6d 75 74 65 78 2a 29 0a 09 20 20 20 20 28 69 66 mutex*).. (if
09f0: 20 28 3e 20 28 2d 20 28 63 75 72 72 65 6e 74 2d (> (- (current-
0a00: 6d 69 6c 6c 69 73 65 63 6f 6e 64 73 29 20 6c 61 milliseconds) la
0a10: 73 74 2d 77 72 69 74 65 2d 66 6c 75 73 68 2d 74 st-write-flush-t
0a20: 69 6d 65 29 20 31 30 29 0a 09 09 28 62 65 67 69 ime) 10)...(begi
0a30: 6e 0a 09 09 20 20 28 6d 75 74 65 78 2d 6c 6f 63 n... (mutex-loc
0a40: 6b 21 20 2a 64 62 3a 70 72 6f 63 65 73 73 2d 71 k! *db:process-q
0a50: 75 65 75 65 2d 6d 75 74 65 78 2a 29 0a 09 09 20 ueue-mutex*)...
0a60: 20 28 64 62 3a 70 72 6f 63 65 73 73 2d 63 61 63 (db:process-cac
0a70: 68 65 64 2d 77 72 69 74 65 73 20 64 62 29 0a 09 hed-writes db)..
0a80: 09 20 20 28 6d 75 74 65 78 2d 75 6e 6c 6f 63 6b . (mutex-unlock
0a90: 21 20 2a 64 62 3a 70 72 6f 63 65 73 73 2d 71 75 ! *db:process-qu
0aa0: 65 75 65 2d 6d 75 74 65 78 2a 29 0a 09 09 20 20 eue-mutex*)...
0ab0: 28 74 68 72 65 61 64 2d 73 6c 65 65 70 21 20 30 (thread-sleep! 0
0ac0: 2e 30 30 35 29 29 29 29 0a 09 20 20 28 6c 6f 6f .005)))).. (loo
0ad0: 70 29 29 29 0a 20 20 20 20 20 20 28 62 65 67 69 p))). (begi
0ae0: 6e 0a 09 28 64 65 62 75 67 3a 70 72 69 6e 74 20 n..(debug:print
0af0: 30 20 22 45 52 52 4f 52 3a 20 66 61 69 6c 65 64 0 "ERROR: failed
0b00: 20 74 6f 20 73 65 74 75 70 20 66 6f 72 20 4d 65 to setup for Me
0b10: 67 61 74 65 73 74 20 69 6e 20 73 65 72 76 65 72 gatest in server
0b20: 3a 77 72 69 74 65 2d 71 75 65 75 65 2d 68 61 6e :write-queue-han
0b30: 64 6c 65 72 22 29 0a 09 28 65 78 69 74 20 31 29 dler")..(exit 1)
0b40: 29 29 29 0a 20 20 20 20 0a 3b 3b 3d 3d 3d 3d 3d ))). .;;=====
0b50: 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d ================
0b60: 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d ================
0b70: 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d ================
0b80: 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d ================
0b90: 3d 0a 3b 3b 20 53 20 45 20 52 20 56 20 45 20 52 =.;; S E R V E R
0ba0: 20 20 20 55 20 54 20 49 20 4c 20 49 20 54 20 49 U T I L I T I
0bb0: 20 45 20 53 20 0a 3b 3b 3d 3d 3d 3d 3d 3d 3d 3d E S .;;========
0bc0: 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d ================
0bd0: 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d ================
0be0: 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d ================
0bf0: 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 0a 0a ==============..
0c00: 3b 3b 20 47 65 6e 65 72 61 74 65 20 61 20 75 6e ;; Generate a un
0c10: 69 71 75 65 20 73 69 67 6e 61 74 75 72 65 20 66 ique signature f
0c20: 6f 72 20 74 68 69 73 20 73 65 72 76 65 72 0a 28 or this server.(
0c30: 64 65 66 69 6e 65 20 28 73 65 72 76 65 72 3a 6d define (server:m
0c40: 6b 2d 73 69 67 6e 61 74 75 72 65 29 0a 20 20 28 k-signature). (
0c50: 6d 65 73 73 61 67 65 2d 64 69 67 65 73 74 2d 73 message-digest-s
0c60: 74 72 69 6e 67 20 28 6d 64 35 2d 70 72 69 6d 69 tring (md5-primi
0c70: 74 69 76 65 29 20 0a 09 09 09 20 28 77 69 74 68 tive) .... (with
0c80: 2d 6f 75 74 70 75 74 2d 74 6f 2d 73 74 72 69 6e -output-to-strin
0c90: 67 0a 09 09 09 20 20 20 28 6c 61 6d 62 64 61 20 g.... (lambda
0ca0: 28 29 0a 09 09 09 20 20 20 20 20 28 77 72 69 74 ().... (writ
0cb0: 65 20 28 6c 69 73 74 20 28 63 75 72 72 65 6e 74 e (list (current
0cc0: 2d 64 69 72 65 63 74 6f 72 79 29 0a 09 09 09 09 -directory).....
0cd0: 09 20 20 28 61 72 67 76 29 29 29 29 29 29 29 0a . (argv))))))).
0ce0: 0a 0a 3b 3b 20 57 68 65 6e 20 75 73 69 6e 67 20 ..;; When using
0cf0: 7a 6d 71 20 74 68 69 73 20 77 6f 75 6c 64 20 73 zmq this would s
0d00: 65 6e 64 20 74 68 65 20 6d 65 73 73 61 67 65 20 end the message
0d10: 62 61 63 6b 20 28 74 77 6f 20 73 74 65 70 20 70 back (two step p
0d20: 72 6f 63 65 73 73 29 0a 3b 3b 20 77 69 74 68 20 rocess).;; with
0d30: 73 70 69 66 66 79 20 6f 72 20 72 70 63 20 74 68 spiffy or rpc th
0d40: 69 73 20 73 69 6d 70 6c 79 20 72 65 74 75 72 6e is simply return
0d50: 73 20 74 68 65 20 72 65 74 75 72 6e 20 64 61 74 s the return dat
0d60: 61 20 74 6f 20 62 65 20 72 65 74 75 72 6e 65 64 a to be returned
0d70: 0a 3b 3b 20 0a 28 64 65 66 69 6e 65 20 28 73 65 .;; .(define (se
0d80: 72 76 65 72 3a 72 65 70 6c 79 20 72 65 74 75 72 rver:reply retur
0d90: 6e 2d 61 64 64 72 20 71 75 65 72 79 2d 73 69 67 n-addr query-sig
0da0: 20 73 75 63 63 65 73 73 2f 66 61 69 6c 20 72 65 success/fail re
0db0: 73 75 6c 74 29 0a 20 20 28 64 65 62 75 67 3a 70 sult). (debug:p
0dc0: 72 69 6e 74 2d 69 6e 66 6f 20 31 31 20 22 73 65 rint-info 11 "se
0dd0: 72 76 65 72 3a 72 65 70 6c 79 20 72 65 74 75 72 rver:reply retur
0de0: 6e 2d 61 64 64 72 3d 22 20 72 65 74 75 72 6e 2d n-addr=" return-
0df0: 61 64 64 72 20 22 2c 20 72 65 73 75 6c 74 3d 22 addr ", result="
0e00: 20 72 65 73 75 6c 74 29 0a 20 20 3b 3b 20 28 73 result). ;; (s
0e10: 65 6e 64 2d 6d 65 73 73 61 67 65 20 70 75 62 73 end-message pubs
0e20: 6f 63 6b 20 74 61 72 67 65 74 20 73 65 6e 64 2d ock target send-
0e30: 6d 6f 72 65 3a 20 23 74 29 0a 20 20 3b 3b 20 28 more: #t). ;; (
0e40: 73 65 6e 64 2d 6d 65 73 73 61 67 65 20 70 75 62 send-message pub
0e50: 73 6f 63 6b 20 0a 20 20 28 63 61 73 65 20 2a 74 sock . (case *t
0e60: 72 61 6e 73 70 6f 72 74 2d 74 79 70 65 2a 0a 20 ransport-type*.
0e70: 20 20 20 28 28 66 73 29 20 72 65 73 75 6c 74 29 ((fs) result)
0e80: 0a 20 20 20 20 28 28 68 74 74 70 29 28 64 62 3a . ((http)(db:
0e90: 6f 62 6a 2d 3e 73 74 72 69 6e 67 20 28 76 65 63 obj->string (vec
0ea0: 74 6f 72 20 73 75 63 63 65 73 73 2f 66 61 69 6c tor success/fail
0eb0: 20 71 75 65 72 79 2d 73 69 67 20 72 65 73 75 6c query-sig resul
0ec0: 74 29 29 29 0a 20 20 20 20 28 28 7a 6d 71 29 0a t))). ((zmq).
0ed0: 20 20 20 20 20 28 6c 65 74 20 28 28 70 75 62 2d (let ((pub-
0ee0: 73 6f 63 6b 65 74 20 28 76 65 63 74 6f 72 2d 72 socket (vector-r
0ef0: 65 66 20 2a 72 75 6e 72 65 6d 6f 74 65 2a 20 31 ef *runremote* 1
0f00: 29 29 29 0a 20 20 20 20 20 20 20 28 73 65 6e 64 ))). (send
0f10: 2d 6d 65 73 73 61 67 65 20 70 75 62 2d 73 6f 63 -message pub-soc
0f20: 6b 65 74 20 72 65 74 75 72 6e 2d 61 64 64 72 20 ket return-addr
0f30: 73 65 6e 64 2d 6d 6f 72 65 3a 20 23 74 29 0a 20 send-more: #t).
0f40: 20 20 20 20 20 20 28 73 65 6e 64 2d 6d 65 73 73 (send-mess
0f50: 61 67 65 20 70 75 62 2d 73 6f 63 6b 65 74 20 28 age pub-socket (
0f60: 64 62 3a 6f 62 6a 2d 3e 73 74 72 69 6e 67 20 28 db:obj->string (
0f70: 76 65 63 74 6f 72 20 73 75 63 63 65 73 73 2f 66 vector success/f
0f80: 61 69 6c 20 71 75 65 72 79 2d 73 69 67 20 72 65 ail query-sig re
0f90: 73 75 6c 74 29 29 29 29 29 0a 20 20 20 20 28 65 sult))))). (e
0fa0: 6c 73 65 20 0a 20 20 20 20 20 28 64 65 62 75 67 lse . (debug
0fb0: 3a 70 72 69 6e 74 20 30 20 22 45 52 52 4f 52 3a :print 0 "ERROR:
0fc0: 20 75 6e 72 65 63 6f 67 6e 69 73 65 64 20 74 72 unrecognised tr
0fd0: 61 6e 73 70 6f 72 74 20 74 79 70 65 3a 20 22 20 ansport type: "
0fe0: 2a 74 72 61 6e 73 70 6f 72 74 2d 74 79 70 65 2a *transport-type*
0ff0: 29 0a 20 20 20 20 20 72 65 73 75 6c 74 29 29 29 ). result)))
1000: 0a 0a 28 64 65 66 69 6e 65 20 28 73 65 72 76 65 ..(define (serve
1010: 72 3a 65 6e 73 75 72 65 2d 72 75 6e 6e 69 6e 67 r:ensure-running
1020: 29 0a 20 20 28 6c 65 74 20 6c 6f 6f 70 20 28 28 ). (let loop ((
1030: 73 65 72 76 65 72 73 20 20 28 6f 70 65 6e 2d 72 servers (open-r
1040: 75 6e 2d 63 6c 6f 73 65 20 74 61 73 6b 73 3a 67 un-close tasks:g
1050: 65 74 2d 62 65 73 74 2d 73 65 72 76 65 72 20 74 et-best-server t
1060: 61 73 6b 73 3a 6f 70 65 6e 2d 64 62 29 29 0a 09 asks:open-db))..
1070: 20 20 20 20 20 28 74 72 79 63 6f 75 6e 74 20 30 (trycount 0
1080: 29 29 0a 20 20 20 20 28 69 66 20 28 6f 72 20 28 )). (if (or (
1090: 6e 6f 74 20 73 65 72 76 65 72 73 29 0a 09 20 20 not servers)..
10a0: 20 20 28 6e 75 6c 6c 3f 20 73 65 72 76 65 72 73 (null? servers
10b0: 29 29 0a 09 28 62 65 67 69 6e 0a 09 20 20 28 69 ))..(begin.. (i
10c0: 66 20 28 65 76 65 6e 3f 20 74 72 79 63 6f 75 6e f (even? trycoun
10d0: 74 29 20 3b 3b 20 6a 75 73 74 20 64 6f 20 74 68 t) ;; just do th
10e0: 65 20 73 65 72 76 65 72 20 73 74 61 72 74 20 65 e server start e
10f0: 76 65 72 79 20 6f 74 68 65 72 20 74 69 6d 65 20 very other time
1100: 74 68 72 6f 75 67 68 20 74 68 69 73 20 6c 6f 6f through this loo
1110: 70 20 28 65 76 65 72 79 20 38 20 73 65 63 6f 6e p (every 8 secon
1120: 64 73 29 0a 09 20 20 20 20 20 20 28 62 65 67 69 ds).. (begi
1130: 6e 0a 09 09 28 64 65 62 75 67 3a 70 72 69 6e 74 n...(debug:print
1140: 20 30 20 22 49 4e 46 4f 3a 20 53 74 61 72 74 69 0 "INFO: Starti
1150: 6e 67 20 73 65 72 76 65 72 20 61 73 20 6e 6f 6e ng server as non
1160: 65 20 72 75 6e 6e 69 6e 67 20 2e 2e 2e 22 29 0a e running ...").
1170: 09 09 3b 3b 20 28 73 65 72 76 65 72 3a 6c 61 75 ..;; (server:lau
1180: 6e 63 68 20 28 73 74 72 69 6e 67 2d 3e 73 79 6d nch (string->sym
1190: 62 6f 6c 20 28 61 72 67 73 3a 67 65 74 2d 61 72 bol (args:get-ar
11a0: 67 20 22 2d 74 72 61 6e 73 70 6f 72 74 22 20 22 g "-transport" "
11b0: 68 74 74 70 22 29 29 29 29 0a 09 09 3b 3b 20 6e http"))))...;; n
11c0: 6f 20 6e 65 65 64 20 74 6f 20 75 73 65 20 66 6f o need to use fo
11d0: 72 6b 2c 20 6e 6f 20 6e 65 65 64 20 74 6f 20 64 rk, no need to d
11e0: 6f 20 74 68 65 20 6c 69 73 74 2d 73 65 72 76 65 o the list-serve
11f0: 72 73 20 74 72 69 63 6b 2e 20 4a 75 73 74 20 73 rs trick. Just s
1200: 74 61 72 74 20 74 68 65 20 64 61 6d 6e 20 73 65 tart the damn se
1210: 72 76 65 72 2c 20 69 74 20 77 69 6c 6c 20 65 78 rver, it will ex
1220: 69 74 20 6f 6e 20 69 74 27 73 20 6f 77 6e 0a 09 it on it's own..
1230: 09 3b 3b 20 69 66 20 74 68 65 72 65 20 69 73 20 .;; if there is
1240: 61 6e 20 65 78 69 73 74 69 6e 67 20 73 65 72 76 an existing serv
1250: 65 72 0a 09 09 28 73 79 73 74 65 6d 20 28 63 6f er...(system (co
1260: 6e 63 20 28 69 66 20 28 67 65 74 65 6e 76 20 22 nc (if (getenv "
1270: 4d 54 5f 4d 45 47 41 54 45 53 54 22 29 20 28 67 MT_MEGATEST") (g
1280: 65 74 65 6e 76 20 22 4d 54 5f 4d 45 47 41 54 45 etenv "MT_MEGATE
1290: 53 54 22 29 20 22 6d 65 67 61 74 65 73 74 22 29 ST") "megatest")
12a0: 0a 09 09 09 20 20 20 20 20 20 22 20 2d 73 65 72 .... " -ser
12b0: 76 65 72 20 2d 20 2d 64 61 65 6d 6f 6e 69 7a 65 ver - -daemonize
12c0: 22 29 29 0a 09 09 28 74 68 72 65 61 64 2d 73 6c "))...(thread-sl
12d0: 65 65 70 21 20 33 29 0a 09 09 3b 3b 20 28 70 72 eep! 3)...;; (pr
12e0: 6f 63 65 73 73 2d 72 75 6e 20 28 63 61 72 20 28 ocess-run (car (
12f0: 61 72 67 76 29 29 20 28 6c 69 73 74 20 22 2d 73 argv)) (list "-s
1300: 65 72 76 65 72 22 20 22 2d 22 20 22 2d 64 61 65 erver" "-" "-dae
1310: 6d 6f 6e 69 7a 65 22 20 22 2d 74 72 61 6e 73 70 monize" "-transp
1320: 6f 72 74 22 20 28 61 72 67 73 3a 67 65 74 2d 61 ort" (args:get-a
1330: 72 67 20 22 2d 74 72 61 6e 73 70 6f 72 74 22 20 rg "-transport"
1340: 22 68 74 74 70 22 29 29 29 0a 09 09 3b 3b 20 28 "http")))...;; (
1350: 73 79 73 74 65 6d 20 28 63 6f 6e 63 20 22 6d 65 system (conc "me
1360: 67 61 74 65 73 74 20 2d 6c 69 73 74 2d 73 65 72 gatest -list-ser
1370: 76 65 72 73 20 7c 20 65 67 72 65 70 20 27 22 20 vers | egrep '"
1380: 6d 65 67 61 74 65 73 74 2d 76 65 72 73 69 6f 6e megatest-version
1390: 20 22 2e 2a 61 6c 69 76 65 27 20 7c 7c 20 6d 65 ".*alive' || me
13a0: 67 61 74 65 73 74 20 2d 73 65 72 76 65 72 20 2d gatest -server -
13b0: 20 2d 64 61 65 6d 6f 6e 69 7a 65 20 26 26 20 73 -daemonize && s
13c0: 6c 65 65 70 20 33 22 29 29 0a 09 09 3b 3b 20 28 leep 3"))...;; (
13d0: 70 72 6f 63 65 73 73 2d 66 6f 72 6b 20 28 6c 61 process-fork (la
13e0: 6d 62 64 61 20 28 29 0a 09 09 3b 3b 20 20 20 20 mbda ()...;;
13f0: 20 20 20 09 20 20 28 64 61 65 6d 6f 6e 3a 69 7a . (daemon:iz
1400: 65 29 0a 09 09 3b 3b 20 20 20 20 20 20 20 09 20 e)...;; .
1410: 20 28 73 65 72 76 65 72 3a 6c 61 75 6e 63 68 20 (server:launch
1420: 28 73 74 72 69 6e 67 2d 3e 73 79 6d 62 6f 6c 20 (string->symbol
1430: 28 61 72 67 73 3a 67 65 74 2d 61 72 67 20 22 2d (args:get-arg "-
1440: 74 72 61 6e 73 70 6f 72 74 22 20 22 68 74 74 70 transport" "http
1450: 22 29 29 29 29 29 0a 09 09 29 0a 09 20 20 20 20 ")))))...)..
1460: 20 20 28 62 65 67 69 6e 0a 09 09 28 64 65 62 75 (begin...(debu
1470: 67 3a 70 72 69 6e 74 2d 69 6e 66 6f 20 30 20 22 g:print-info 0 "
1480: 57 61 69 74 69 6e 67 20 66 6f 72 20 73 65 72 76 Waiting for serv
1490: 65 72 20 74 6f 20 73 74 61 72 74 22 29 0a 09 09 er to start")...
14a0: 28 74 68 72 65 61 64 2d 73 6c 65 65 70 21 20 34 (thread-sleep! 4
14b0: 29 29 29 0a 09 20 20 28 69 66 20 28 3c 20 74 72 ))).. (if (< tr
14c0: 79 63 6f 75 6e 74 20 31 30 29 0a 09 20 20 20 20 ycount 10)..
14d0: 20 20 28 6c 6f 6f 70 20 28 6f 70 65 6e 2d 72 75 (loop (open-ru
14e0: 6e 2d 63 6c 6f 73 65 20 74 61 73 6b 73 3a 67 65 n-close tasks:ge
14f0: 74 2d 62 65 73 74 2d 73 65 72 76 65 72 20 74 61 t-best-server ta
1500: 73 6b 73 3a 6f 70 65 6e 2d 64 62 29 20 0a 09 09 sks:open-db) ...
1510: 20 20 20 20 28 2b 20 74 72 79 63 6f 75 6e 74 20 (+ trycount
1520: 31 29 29 0a 09 20 20 20 20 20 20 28 64 65 62 75 1)).. (debu
1530: 67 3a 70 72 69 6e 74 20 30 20 22 57 41 52 4e 49 g:print 0 "WARNI
1540: 4e 47 3a 20 43 6f 75 6c 64 6e 27 74 20 73 74 61 NG: Couldn't sta
1550: 72 74 20 6f 72 20 66 69 6e 64 20 61 20 73 65 72 rt or find a ser
1560: 76 65 72 2e 22 29 29 29 0a 09 28 64 65 62 75 67 ver.")))..(debug
1570: 3a 70 72 69 6e 74 20 30 20 22 49 4e 46 4f 3a 20 :print 0 "INFO:
1580: 53 65 72 76 65 72 28 73 29 20 72 75 6e 6e 69 6e Server(s) runnin
1590: 67 20 22 20 73 65 72 76 65 72 73 29 0a 09 29 29 g " servers)..))
15a0: 29 0a ).