Overview
Context
Changes
Modified common.scm
from [d2df0eaa3f]
to [4b29489636].
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(this-wd-num (begin (mutex-lock! *wdnum*mutex) (let ((x *wdnum*)) (set! *wdnum* (add1 *wdnum*)) (mutex-unlock! *wdnum*mutex) x)))
)
(debug:print-info 0 *default-log-port* "watchdog starting. legacy-sync is " legacy-sync" pid="(current-process-id)" this-wd-num="this-wd-num)
(if (and legacy-sync (not *time-to-exit*))
(let ((dbstruct (db:setup)))
(debug:print-info 0 *default-log-port* "Server running, periodic sync started.")
(let loop ()
(BB> "watchdog loop. pid="(current-process-id)" this-wd-num="this-wd-num" *time-to-exit*="*time-to-exit*)
;;(BB> "watchdog loop. pid="(current-process-id)" this-wd-num="this-wd-num" *time-to-exit*="*time-to-exit*)
;; sync for filesystem local db writes
;;
(mutex-lock! *db-multi-sync-mutex*)
(let* ((need-sync (>= *db-last-access* *db-last-sync*)) ;; no sync since last write
(sync-in-progress *db-sync-in-progress*)
(should-sync (and (not *time-to-exit*)
(> (- (current-seconds) *db-last-sync*) 5))) ;; sync every five seconds minimum
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(set! last-time start-time)
(debug:print-info 4 *default-log-port* "timestamp -> " (seconds->time-string (current-seconds)) ", time since start -> " (seconds->hr-min-sec (- (current-seconds) *time-zero*))))))
;; keep going unless time to exit
;;
(if (not *time-to-exit*)
(let delay-loop ((count 0))
(BB> "delay-loop top; count="count" pid="(current-process-id)" this-wd-num="this-wd-num" *time-to-exit*="*time-to-exit*)
;;(BB> "delay-loop top; count="count" pid="(current-process-id)" this-wd-num="this-wd-num" *time-to-exit*="*time-to-exit*)
(if (and (not *time-to-exit*)
(< count 4)) ;; was 11, changing to 4.
(begin
(thread-sleep! 1)
(delay-loop (+ count 1))))
(if (not *time-to-exit*) (loop))))
(if (common:low-noise-print 30)
(debug:print-info 0 *default-log-port* "Exiting watchdog timer, *time-to-exit* = " *time-to-exit*" pid="(current-process-id)" this-wd-num="this-wd-num)))))))
(define (std-exit-procedure)
(on-exit (lambda () 0))
;;(BB> "std-exit-procedure called; *time-to-exit*="*time-to-exit*)
(let ((no-hurry (if *time-to-exit* ;; hurry up
#f
(begin
(set! *time-to-exit* #t)
#t))))
(debug:print-info 4 *default-log-port* "starting exit process, finalizing databases.")
(if (and no-hurry (debug:debug-mode 18))
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)
0)
(define (std-signal-handler signum)
;; (signal-mask! signum)
(set! *time-to-exit* #t)
;;(BB> "got signal "signum)
(debug:print-error 0 *default-log-port* "Received signal " signum " exiting promptly")
;; (std-exit-procedure) ;; shouldn't need this since we are exiting and it will be called anyway
(exit))
(set-signal-handler! signal/int std-signal-handler) ;; ^C
(set-signal-handler! signal/term std-signal-handler)
;; (set-signal-handler! signal/stop std-signal-handler) ;; ^Z NO, do NOT handle ^Z!
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Modified common_records.scm
from [4d93fb5556]
to [e3400966c5].
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(lambda ()
(if *logging*
(db:log-event (apply conc params))
(apply print params)
)))))
;; Brandon's debug printer shortcut (indulge me :)
(define *BB-process-starttime* (current-milliseconds))
(define (BB> . in-args)
(let* ((stack (get-call-chain))
(location #f))
(for-each
(lambda (frame)
(let* ((this-loc (vector-ref frame 0))
(this-func (cadr (string-split this-loc " "))))
(if (equal? this-func "BB>")
(set! location this-loc))))
stack)
(let ((dp-args (append (list 0 *default-log-port* location" " ) in-args)))
(let ((dp-args (append (list 0 *default-log-port* (conc location "@"(/ (- (current-milliseconds) *BB-process-starttime*) 1000)" ") ) in-args)))
(apply debug:print dp-args))))
(define *BBpp_custom_expanders_list* (make-hash-table))
;; register hash tables with BBpp.
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Modified http-transport.scm
from [285317a3d3]
to [85b3cef6fd].
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(last-access 0)
(server-timeout (server:get-timeout))
(server-going #f))
(let loop ((count 0)
(server-state 'available)
(bad-sync-count 0)
(start-time (current-milliseconds)))
;;(BB> "http-transport: top of loop; count="count" server-state="server-state" bad-sync-count="bad-sync-count" server-going="server-going)
;; Use this opportunity to sync the tmp db to megatest.db
(if (not server-going) ;; *dbstruct-db*
;; Removed code is pasted below (keeping it around until we are clear it is not needed).
;; no *dbstruct-db* yet, set running after our first pass through and start the db
(if (eq? server-state 'available)
(let ((new-server-id (tasks:server-am-i-the-server? (db:delay-if-busy tdbdat) run-id))) ;; try to ensure no double registering of servers
(if (equal? new-server-id server-id)
(begin
(tasks:server-set-state! (db:delay-if-busy tdbdat) server-id "dbprep")
;;(BB> "http-transport: ->dbprep")
(thread-sleep! 0.5) ;; give some margin for queries to complete before switching from file based access to server based access
(set! *dbstruct-db* (db:setup)) ;; run-id))
(set! server-going #t)
(tasks:server-set-state! (db:delay-if-busy tdbdat) server-id "running")
;;(BB> "http-transport: ->running")
(server:write-dotserver *toppath* (conc iface ":" port))
(thread-start! *watchdog*)
(delete-file* (conc *toppath* "/.starting-server")))
(server:complete-attempt *toppath*))
(begin ;; gotta exit nicely
;;(BB> "http-transport: ->collision")
(tasks:server-set-state! (db:delay-if-busy tdbdat) server-id "collision")
(http-transport:server-shutdown server-id port))))))
;; when things go wrong we don't want to be doing the various queries too often
;; so we strive to run this stuff only every four seconds or so.
(let* ((sync-time (- (current-milliseconds) start-time))
(rem-time (quotient (- 4000 sync-time) 1000)))
(if (and (<= rem-time 4)
(> rem-time 0))
(thread-sleep! rem-time)))
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;; (if (and (<= rem-time 4)
;; (> rem-time 0))
;; (thread-sleep! rem-time)
;; (thread-sleep! 4))) ;; fallback for if the math is changed ...
(define (http-transport:server-shutdown server-id port)
(let ((tdbdat (tasks:open-db)))
;;(BB> "http-transport:server-shutdown called")
(debug:print-info 0 *default-log-port* "Starting to shutdown the server. pid="(current-process-id))
;;
;; start_shutdown
;;
(tasks:server-set-state! (db:delay-if-busy tdbdat) server-id "shutting-down")
(set! *time-to-exit* #t) ;; tell on-exit to be fast as we've already cleaned up
(portlogger:open-run-close portlogger:set-port port "released")
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(/ *total-non-write-delay*
*number-non-write-queries*))
" ms")
(debug:print-info 0 *default-log-port* "Server shutdown complete. Exiting")
(tasks:server-delete-record (db:delay-if-busy tdbdat) server-id " http-transport:keep-running complete")
;; if the .server file contained :myport then we can remove it
(server:remove-dotserver-file *toppath* port)
;;(BB> "http-transport:server-shutdown -> exit")
(exit)))
;; all routes though here end in exit ...
;;
;; start_server?
;;
(define (http-transport:launch run-id)
(with-output-to-file
(conc *toppath* "/.starting-server")
(server:attempting-start *toppath*)
(lambda ()
(print (current-process-id) " on " (get-host-name))))
(let* ((tdbdat (tasks:open-db)))
(set! *run-id* run-id)
(if (args:get-arg "-daemonize")
(begin
(daemon:ize)
(if *alt-log-file* ;; we should re-connect to this port, I think daemon:ize disrupts it
(begin
(current-error-port *alt-log-file*)
(current-output-port *alt-log-file*)))))
(if (and (server:read-dotserver *toppath*)
(server:check-if-running run-id))
(begin
(debug:print 0 *default-log-port* "INFO: Server for run-id " run-id " already running")
(exit 0))
(begin ;; ok, no server detected, clean out any lingering records
(tasks:server-force-clean-running-records-for-run-id (db:delay-if-busy tdbdat) run-id "notresponding")))
(tasks:server-force-clean-running-records-for-run-id (db:delay-if-busy tdbdat) run-id "notresponding")))
(let loop ((server-id (tasks:server-lock-slot (db:delay-if-busy tdbdat) run-id))
(remtries 4))
(if (not server-id)
(if (> remtries 0)
(begin
(thread-sleep! 2)
(loop (tasks:server-lock-slot (db:delay-if-busy tdbdat) run-id)
(- remtries 1)))
(begin
;; since we didn't get the server lock we are going to clean up and bail out
(debug:print-info 2 *default-log-port* "INFO: server pid=" (current-process-id) ", hostname=" (get-host-name) " not starting due to other candidates ahead in start queue")
(tasks:server-delete-records-for-this-pid (db:delay-if-busy tdbdat) " http-transport:launch")
(delete-file* (conc *toppath* "/.starting-server"))
(server:complete-attempt *toppath*)
))
(let* ((th2 (make-thread (lambda ()
(debug:print-info 0 *default-log-port* "Server run thread started")
(http-transport:run
(if (args:get-arg "-server")
(args:get-arg "-server")
"-")
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Modified megatest.scm
from [e7342b90ae]
to [ba3fdf979e].
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(let ((targ (or (args:get-arg "-reqtarg")(args:get-arg "-target"))))
(if targ (setenv "MT_TARGET" targ)))
;; The watchdog is to keep an eye on things like db sync etc.
;;
(define *watchdog* (make-thread common:watchdog "Watchdog thread"))
(if (not (args:get-arg "-server"))
(thread-start! *watchdog*)
;; (BB> "thread-start! watchdog")
(thread-start! *watchdog*)) ;; if starting a server; wait till we get to running state before kicking off watchdog
;;(BB> "thread-start! watchdog")
(if (args:get-arg "-log")
(let ((oup (open-output-file (args:get-arg "-log"))))
(debug:print-info 0 *default-log-port* "Sending log output to " (args:get-arg "-log"))
(set! *default-log-port* oup)))
(if (or (args:get-arg "-h")
(args:get-arg "-help")
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;;======================================================================
;; Exit and clean up
;;======================================================================
(if (not *didsomething*)
(debug:print 0 *default-log-port* help))
(BB> "thread-join! watchdog")
(thread-join! *watchdog*)
;;(BB> "thread-join! watchdog")
;; join the watchdog thread if it has been thread-start!ed (it may not have been started in the case of a server that never enters running state)
;; (symbols returned by thread-state: created ready running blocked suspended sleeping terminated dead)
(if (thread? *watchdog*)
(case (thread-state *watchdog*)
((ready running blocked sleeping terminated dead)
(thread-join! *watchdog*))))
(set! *time-to-exit* #t)
(if (not (eq? *globalexitstatus* 0))
(if (or (args:get-arg "-run")(args:get-arg "-runtests")(args:get-arg "-runall"))
(begin
(debug:print 0 *default-log-port* "NOTE: Subprocesses with non-zero exit code detected: " *globalexitstatus*)
(exit 0))
(case *globalexitstatus*
((0)(exit 0))
((1)(exit 1))
((2)(exit 2))
(else (exit 3)))))
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Added minimal/manyservers.sh version [ab71c989a2].