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;; Copyright 2006-2012, Matthew Welland.
;;
;; This program is made available under the GNU GPL version 2.0 or
;; greater. See the accompanying file COPYING for details.
;;
;; This program is distributed WITHOUT ANY WARRANTY; without even the
;; implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
;; PURPOSE.
(require-extension (srfi 18) extras tcp s11n)
(use srfi-1 posix regex regex-case srfi-69 hostinfo md5 message-digest posix-extras) ;; sqlite3
;; (import (prefix sqlite3 sqlite3:))
(use spiffy uri-common intarweb http-client spiffy-request-vars intarweb spiffy-directory-listing)
;; Configurations for server
(tcp-buffer-size 2048)
(max-connections 2048)
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;; Copyright 2006-2012, Matthew Welland.
;;
;; This program is made available under the GNU GPL version 2.0 or
;; greater. See the accompanying file COPYING for details.
;;
;; This program is distributed WITHOUT ANY WARRANTY; without even the
;; implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
;; PURPOSE.
(require-extension (srfi 18) extras tcp s11n)
(use srfi-1 posix regex regex-case srfi-69 hostinfo md5 message-digest posix-extras)
(use spiffy uri-common intarweb http-client spiffy-request-vars intarweb spiffy-directory-listing)
;; Configurations for server
(tcp-buffer-size 2048)
(max-connections 2048)
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(define (http-transport:close-connections #!key (area-dat #f))
(let* ((runremote (or area-dat *runremote*))
(server-dat (if runremote
(remote-conndat runremote)
#f))) ;; (hash-table-ref/default *runremote* run-id #f)))
(if (vector? server-dat)
(let ((api-dat (http-transport:server-dat-get-api-uri server-dat)))
(close-connection! api-dat)
#t)
#f)))
(define (make-http-transport:server-dat)(make-vector 6))
(define (http-transport:server-dat-get-iface vec) (vector-ref vec 0))
(define (http-transport:server-dat-get-port vec) (vector-ref vec 1))
(define (http-transport:server-dat-get-api-uri vec) (vector-ref vec 2))
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(define (http-transport:close-connections #!key (area-dat #f))
(let* ((runremote (or area-dat *runremote*))
(server-dat (if runremote
(remote-conndat runremote)
#f))) ;; (hash-table-ref/default *runremote* run-id #f)))
(if (vector? server-dat)
(let ((api-dat (http-transport:server-dat-get-api-uri server-dat)))
(handle-exceptions
exn
(begin
(print-call-chain *default-log-port*)
(debug:print-error 0 *default-log-port* " closing connection failed with error: " ((condition-property-accessor 'exn 'message) exn)))
(close-connection! api-dat)
#t))
#f)))
(define (make-http-transport:server-dat)(make-vector 6))
(define (http-transport:server-dat-get-iface vec) (vector-ref vec 0))
(define (http-transport:server-dat-get-port vec) (vector-ref vec 1))
(define (http-transport:server-dat-get-api-uri vec) (vector-ref vec 2))
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(debug:print 0 *default-log-port* "SERVER STARTED: " iface ":" port " AT " (current-seconds))
(flush-output *default-log-port*)))
(if (common:low-noise-print 60 "dbstats")
(begin
(debug:print 0 *default-log-port* "Server stats:")
(db:print-current-query-stats)))
(let* ((hrs-since-start (/ (- (current-seconds) server-start-time) 3600))
(adjusted-timeout (if (> hrs-since-start 1)
(- server-timeout (inexact->exact (round (* hrs-since-start 60)))) ;; subtract 60 seconds per hour
server-timeout)))
(if (common:low-noise-print 120 "server timeout")
(debug:print-info 0 *default-log-port* "Adjusted server timeout: " adjusted-timeout))
(cond
((and *server-run*
(> (+ last-access server-timeout)
(current-seconds))
(< (- (current-seconds) server-start-time) 3600)) ;; do not update log or touch log if we've been running for more than one hour.
(if (common:low-noise-print 120 "server continuing")
(debug:print-info 0 *default-log-port* "Server continuing, seconds since last db access: " (- (current-seconds) last-access))
(let ((curr-time (current-seconds)))
(handle-exceptions
exn
(debug:print 0 *default-log-port* "ERROR: Failed to change timestamp on log file " server-log-file ". Are you out of space on that disk?")
(change-file-times server-log-file curr-time curr-time))))
(loop 0 server-state bad-sync-count (current-milliseconds)))
(else
(debug:print-info 0 *default-log-port* "Server timed out. seconds since last db access: " (- (current-seconds) last-access))
(http-transport:server-shutdown port)))))))
(define (http-transport:server-shutdown port)
(begin
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(debug:print 0 *default-log-port* "SERVER STARTED: " iface ":" port " AT " (current-seconds))
(flush-output *default-log-port*)))
(if (common:low-noise-print 60 "dbstats")
(begin
(debug:print 0 *default-log-port* "Server stats:")
(db:print-current-query-stats)))
(let* ((hrs-since-start (/ (- (current-seconds) server-start-time) 3600))
(adjusted-timeout (if (> hrs-since-start 1) ;; never used!
(- server-timeout (inexact->exact (round (* hrs-since-start 60)))) ;; subtract 60 seconds per hour
server-timeout)))
(if (common:low-noise-print 120 "server timeout")
(debug:print-info 0 *default-log-port* "Adjusted server timeout: " adjusted-timeout))
(cond
((and *server-run*
(> (+ last-access server-timeout)
(current-seconds))
(< (- (current-seconds) server-start-time) 3600)) ;; do not update log or touch log if we've been running for more than one hour.
(if (common:low-noise-print 120 "server continuing")
(debug:print-info 0 *default-log-port* "Server continuing, seconds since last db access: " (- (current-seconds) last-access))
(let ((curr-time (current-seconds)))
(handle-exceptions
exn
(debug:print 0 *default-log-port* "ERROR: Failed to change timestamp on log file " server-log-file ". Are you out of space on that disk?")
(if (not *server-overloaded*)
(change-file-times server-log-file curr-time curr-time)))))
(loop 0 server-state bad-sync-count (current-milliseconds)))
(else
(debug:print-info 0 *default-log-port* "Server timed out. seconds since last db access: " (- (current-seconds) last-access))
(http-transport:server-shutdown port)))))))
(define (http-transport:server-shutdown port)
(begin
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(exit)))
;; all routes though here end in exit ...
;;
;; start_server?
;;
(define (http-transport:launch)
;; (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*)))))
(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")
"-")
)) "Server run"))
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(exit)))
;; all routes though here end in exit ...
;;
;; start_server?
;;
(define (http-transport:launch)
;; lets not even bother to start if there are already three or more server files ready to go
(let* ((num-alive (server:get-num-alive (server:get-list *toppath*))))
(if (> num-alive 3)
(begin
(debug:print 0 *default-log-port* "ERROR: Aborting server start because there are already " num-alive " possible servers either running or starting up")
(exit))))
(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")
"-")
)) "Server run"))
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