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(areapath (tt-areapath ttdat))
(nosyncdbpath (conc areapath"/.mtdb"))
(cleanup (lambda ()
(if (tt-cleanup-proc ttdat)
((tt-cleanup-proc ttdat)))
(dbfile:with-no-sync-db nosyncdbpath
(lambda (db)
(db:no-sync-del! db dbfname))))))
(set! *server-info* ttdat)
(let loop ((count 0))
(if (> count 240)
(begin
(debug:print 0 *default-log-port* "FATAL: Could not start a tcp server, giving up.")
(exit 1))
(if (not (tt-port ttdat)) ;; no connection yet
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(areapath (tt-areapath ttdat))
(nosyncdbpath (conc areapath"/.mtdb"))
(cleanup (lambda ()
(if (tt-cleanup-proc ttdat)
((tt-cleanup-proc ttdat)))
(dbfile:with-no-sync-db nosyncdbpath
(lambda (db)
(let* ((dbtmpname (dbr:dbstruct-dbtmpname dbstruct)))
(debug:print-info 0 *default-log-port* "Running clean up, including removing db file "dbtmpname)
(db:no-sync-del! db dbfname)
#;(if dbtmpname
(delete-file dbtmpname))))))))
(set! *server-info* ttdat)
(let loop ((count 0))
(if (> count 240)
(begin
(debug:print 0 *default-log-port* "FATAL: Could not start a tcp server, giving up.")
(exit 1))
(if (not (tt-port ttdat)) ;; no connection yet
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(let* ((servers (tt:get-server-info-sorted ttdat dbfname))
(ok (cond
((null? servers) #f) ;; not ok
((equal? (list-ref (car servers) 6) ;; compare the servinfofile
(tt-servinf-file ttdat))
(let* ((res (if db-locked-in
#t
(let* ((success (dbfile:with-no-sync-db
nosyncdbpath
(lambda (db)
(db:no-sync-get-lock-with-id db dbfname (tt-servinf-file ttdat))))))
(if success
(begin
(tt-state-set! ttdat 'running)
(debug:print 0 *default-log-port* "Got server lock for "
dbfname)
(set! db-locked-in #t)
#t)
(begin
(debug:print 0 *default-log-port* "Failed to get server lock for "dbfname)
#f))))))
(if (and res
(common:low-noise-print 120 "top server message"))
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(let* ((servers (tt:get-server-info-sorted ttdat dbfname))
(ok (cond
((null? servers) #f) ;; not ok
((equal? (list-ref (car servers) 6) ;; compare the servinfofile
(tt-servinf-file ttdat))
(let* ((res (if db-locked-in
#t
(let* ((lock-result
(dbfile:with-no-sync-db
nosyncdbpath
(lambda (db)
(db:no-sync-get-lock-with-id db dbfname
;; (tt-servinf-file ttdat)
(dbr:dbstruct-dbtmpname dbstruct)
))))
(success (car lock-result)))
(if success
(begin
(tt-state-set! ttdat 'running)
(debug:print 0 *default-log-port* "Got server lock for "
dbfname)
(set! db-locked-in #t)
#t)
(begin
(debug:print 0 *default-log-port* "Failed to get server lock for "dbfname)
#f))))))
(if (and res (common:low-noise-print 120 "top server message"))
(debug:print-info 0 *default-log-port* "Keep running, I'm the top server for "
dbfname" on "(tt-host ttdat)":"(tt-port ttdat)))
res))
(else
(debug:print-info 0 *default-log-port* "I'm not the lead server: "servers)
(let* ((leadsrv (car servers)))
(match leadsrv
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(debug:print 0 *default-log-port* "I'm not the server but could not ping "host":"port", will try again.")
(thread-sleep! 1) ;; just because
#t)))))
(else ;; should never get here
(debug:print 0 *default-log-port* "BAD SERVER RECORD: "leadsrv)
(assert #f "Bad server record "leadsrv))))))))
(if ok
;; (if (> *api-process-request-count* 0) ;; have requests in flight
;; (tt-last-access-set! ttdat (current-seconds)))
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(debug:print 0 *default-log-port* "I'm not the server but could not ping "host":"port", will try again.")
(thread-sleep! 1) ;; just because
#t)))))
(else ;; should never get here
(debug:print 0 *default-log-port* "BAD SERVER RECORD: "leadsrv)
(assert #f "Bad server record "leadsrv))))))))
(if ok
(tt-last-access-set! ttdat *db-last-access*) ;; bit silly, just use db-last-access
(begin
(debug:print 0 *default-log-port* "Exiting immediately")
(cleanup)
(exit)))
(let* ((last-update (dbr:dbstruct-last-update dbstruct))
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(let* ((areapath (tt-areapath ttdat))
(servdir (tt:get-servinfo-dir areapath))
(host (tt-host ttdat))
(port (tt-port ttdat))
(servinf (conc servdir"/"host":"port"-"(current-process-id)":"dbfname))
(serv-id (tt:mk-signature areapath))
(clean-proc (lambda ()
(delete-file* servinf))))
(assert (and host port) "FATAL: tt:create-server-registration-file called with no conn, dbfname="dbfname)
(tt-cleanup-proc-set! ttdat clean-proc)
(tt-servinf-file-set! ttdat servinf)
(with-output-to-file servinf
(lambda ()
(print "SERVER STARTED: "host":"port" AT "(current-seconds)" server-id: "serv-id" pid: "(current-process-id)" dbfname: "dbfname)))
serv-id))
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(let* ((areapath (tt-areapath ttdat))
(servdir (tt:get-servinfo-dir areapath))
(host (tt-host ttdat))
(port (tt-port ttdat))
(servinf (conc servdir"/"host":"port"-"(current-process-id)":"dbfname))
(serv-id (tt:mk-signature areapath))
(clean-proc (lambda ()
(delete-file* servinf)
)))
(assert (and host port) "FATAL: tt:create-server-registration-file called with no conn, dbfname="dbfname)
(tt-cleanup-proc-set! ttdat clean-proc)
(tt-servinf-file-set! ttdat servinf)
(with-output-to-file servinf
(lambda ()
(print "SERVER STARTED: "host":"port" AT "(current-seconds)" server-id: "serv-id" pid: "(current-process-id)" dbfname: "dbfname)))
serv-id))
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