1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
|
;; 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 rpc)
(import (prefix rpc rpc:))
(use sqlite3 srfi-1 posix regex regex-case srfi-69 hostinfo)
(import (prefix sqlite3 sqlite3:))
(declare (unit server))
(declare (uses common))
(declare (uses db))
(declare (uses tests))
(include "common_records.scm")
(include "db_records.scm")
;; procstr is the name of the procedure to be called as a string
(define (server:autoremote procstr params)
(handle-exceptions
exn
(begin
(debug:print 1 "Remote failed for " proc " " params)
(apply (eval (string->symbol procstr)) params))
;; (if *runremote*
;; (apply (eval (string->symbol (conc "remote:" procstr))) params)
(apply (eval (string->symbol procstr)) params)))
start db hostn)
(let ((host:port (db:get-var db "SERVER"))) ;; do whe already have a server running?
(if host:port
(set! *runremote* (let* ((lst (string-split host:port ":"))
(port (if (> (length lst) 1)
(string->number (cadr lst))
#f)))
(if port (vector (car lst) port) #f)))
(let* ((rpc:listener (server:find-free-port-and-open (rpc:default-server-port)))
(th1 (make-thread
(cute (rpc:make-server rpc:listener) "rpc:server")
'rpc:server))
;; (th2 (make-thread (lambda ()(db:updater))))
(hostname (if (string=? "-" hostn)
(get-host-name)
hostn))
(ipaddrstr (if (string=? "-" hostn)
(string-intersperse (map number->string (u8vector->list (hostname->ip hostname))) ".")
#f))
(host:port (conc (if ipaddrstr ipaddrstr hostname) ":" (rpc:default-server-port))))
(debug:print 0 "Server started on " host:port)
(db:set-var db "SERVER" host:port)
(set! *cache-on* #t)
;; can use this to run most anything at the remote
(rpc:publish-procedure!
'remote:run
(lambda (procstr . params)
(server:autoremote procstr params)))
(rpc:publish-procedure!
'server:login
(lambda (toppath)
(set! *last-db-access* (current-seconds))
(if (equal? *toppath* toppath)
(begin
(debug:print-info 2 "login successful")
#t)
#f)))
;;======================================================================
;; db specials here
;;======================================================================
;; remote call to open-run-close
(rpc:publish-procedure!
'rdb:open-run-close
(lambda (procname . remargs)
(debug:print-info 12 "Remote call of rdb:open-run-close " procname " " remargs)
(set! *last-db-access* (current-seconds))
(apply open-run-close (eval procname) remargs)))
(rpc:publish-procedure!
'cdb:test-set-status-state
(lambda (test-id status state msg)
(debug:print-info 12 "Remote call of cdb:test-set-status-state test-id=" test-id ", status=" status ", state=" state ", msg=" msg)
(cdb:test-set-status-state test-id status state msg)))
(rpc:publish-procedure!
'cdb:test-rollup-test_data-pass-fail
(lambda (test-id)
(debug:print-info 12 "Remote call of cdb:test-rollup-test_data-pass-fail " test-id)
(cdb:test-rollup-test_data-pass-fail test-id)))
(rpc:publish-procedure!
'cdb:pass-fail-counts
(lambda (test-id fail-count pass-count)
(debug:print-info 12 "Remote call of cdb:pass-fail-counts " test-id " passes: " pass-count " fails: " fail-count)
(cdb:pass-fail-counts test-id fail-count pass-count)))
(rpc:publish-procedure!
'cdb:tests-register-test
(lambda (db run-id test-name item-path)
(debug:print-info 12 "Remote call of cdb:tests-register-test " run-id " testname: " test-name " item-path: " item-path)
(cdb:tests-register-test db run-id test-name item-path)))
(rpc:publish-procedure!
'cdb:flush-queue
(lambda ()
(debug:print-info 12 "Remote call of cdb:flush-queue")
(cdb:flush-queue)))
;;======================================================================
;; end of publish-procedure section
;;======================================================================
(set! *rpc:listener* rpc:listener)
(open-run-close
(lambda (db . params)
(sqlite3:execute db "DELETE FROM metadat WHERE var='SERVER' and val=?;" host:port))
#f ;; for db
#f) ;; for a param
(let loop ((n 0))
(let ((queue-len 0))
(thread-sleep! (random 5))
(mutex-lock! *incoming-mutex*)
(set! queue-len (length *incoming-data*))
(mutex-unlock! *incoming-mutex*)
(if (> queue-len 0)
(begin
(debug:print-info 0 "Queue not flushed, waiting ...")
(loop (+ n 1)))))
)))
(db:updater)
(thread-start! th1)
;; (debug:print 0 "Server started on port " (rpc:default-server-port) "...")
;; (thread-start! th2)
;; (thread-join! th2)
;; return th2 for the calling process to do a join with
th1
)))) ;; rpc:server)))
(define (server:keep-running db host:port)
;; if none running or if > 20 seconds since
;; server last used then start shutdown
(let loop ((count 0))
(thread-sleep! 20) ;; no need to do this very often
(let ((numrunning (db:get-count-tests-running db)))
(if (or (> numrunning 0)
(> (+ *last-db-access* 60)(current-seconds)))
(begin
(debug:print-info 0 "Server continuing, tests running: " numrunning ", seconds since last db access: " (- (current-seconds) *last-db-access*))
(loop (+ 1 count)))
(begin
(debug:print-info 0 "Starting to shutdown the server side")
;; need to delete only *my* server entry (future use)
(sqlite3:execute db "DELETE FROM metadat WHERE var='SERVER' AND val like ?;" host:port)
(thread-sleep! 10)
(debug:print-info 0 "Max cached queries was " *max-cache-size*)
(debug:print-info 0 "Server shutdown complete. Exiting")
;; (exit)))
)))))
(define (server:find-free-port-and-open port)
(handle-exceptions
exn
(begin
(print "Failed to bind to port " (rpc:default-server-port) ", trying next port")
(server:find-free-port-and-open (+ port 1)))
(rpc:default-server-port port)
(tcp-read-timeout 240000)
(tcp-listen (rpc:default-server-port) 10000)))
(define (server:client-setup)
(if *runremote*
(begin
(debug:print 0 "ERROR: Attempt to connect to server but already connected")
#f)
(let* ((hostinfo (open-run-close db:get-var #f "SERVER"))
(hostdat (if hostinfo (string-split hostinfo ":") #f))
(host (if hostinfo (car hostdat) #f))
(port (if (and hostinfo (> (length hostdat) 1))(cadr hostdat) #f)))
(if (and port
(string->number port))
(let ((portn (string->number port)))
(debug:print-info 2 "Setting up to connect to host " host ":" port)
(handle-exceptions
exn
(begin
(debug:print 0 "ERROR: Failed to open a connection to the server at host: " host " port: " port)
(debug:print 0 " EXCEPTION: " ((condition-property-accessor 'exn 'message) exn))
;; (open-run-close
;; (lambda (db . param)
;; (sqlite3:execute db "DELETE FROM metadat WHERE var='SERVER'"))
;; #f)
(set! *runremote* #f))
(if (and (not (args:get-arg "-server")) ;; no point in the server using the server using the server
((rpc:procedure 'server:login host portn) *toppath*))
(begin
(debug:print-info 2 "Logged in and connected to " host ":" port)
(set! *runremote* (vector host portn)))
(begin
(debug:print-info 2 "Failed to login or connect to " host ":" port)
(set! *runremote* #f)))))
(debug:print-info 2 "no server available")))))
|
|
|
<
<
<
<
<
<
<
<
<
<
<
|
|
<
>
>
|
|
>
|
<
<
<
>
|
>
|
<
>
|
|
|
|
<
<
>
<
<
<
<
<
|
<
<
<
<
<
<
<
<
<
|
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
|
<
<
<
<
|
<
|
|
|
<
|
|
>
>
|
|
>
>
>
|
>
>
>
|
|
|
|
|
>
>
|
|
|
|
>
|
>
|
<
>
>
>
>
|
>
>
|
|
<
<
<
<
<
<
<
<
<
|
|
|
|
|
|
>
|
<
<
>
|
|
<
>
|
>
|
|
|
>
|
|
|
>
>
|
>
>
>
>
>
>
>
|
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
|
;; 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 rpc s11n)
(import (prefix rpc rpc:))
(use sqlite3 srfi-1 posix regex regex-case srfi-69 hostinfo zmq)
(import (prefix sqlite3 sqlite3:))
(declare (unit server))
(declare (uses common))
(declare (uses db))
(declare (uses tests))
(include "common_records.scm")
(include "db_records.scm")
(define (server:run hostn)
(debug:print 0 "Attempting to start the server ...")
(let ((host:port (open-run-close db:get-var #f "SERVER"))) ;; do whe already have a server running?
(if host:port
(begin
(debug:print 0 "ERROR: server already running.")
(if (server:client-setup)
(begin
(debug:print-info 0 "Server is alive, exiting")
(exit))
(begin
(debug:print-info 0 "Server is dead, removing flag and trying again")
(open-run-close db:del-var #f "SERVER")
(server:run hostn))))
(let* ((zmq-socket #f)
(hostname (if (string=? "-" hostn)
(get-host-name)
hostn))
(ipaddrstr (let ((ipstr (if (string=? "-" hostn)
(string-intersperse (map number->string (u8vector->list (hostname->ip hostname))) ".")
#f)))
(if ipstr ipstr hostname))))
(set! zmq-socket (server:find-free-port-and-open ipaddrstr zmq-socket 5555))
(set! *cache-on* #t)
;; what to do when we quit
;;
(on-exit (lambda ()
(open-run-close db:del-var #f "SERVER")
(let loop ()
(let ((queue-len 0))
(thread-sleep! (random 5))
(mutex-lock! *incoming-mutex*)
(set! queue-len (length *incoming-data*))
(mutex-unlock! *incoming-mutex*)
(if (> queue-len 0)
(begin
(debug:print-info 0 "Queue not flushed, waiting ...")
(loop)))))))
;; The heavy lifting
;;
(let loop ()
(let* ((rawmsg (receive-message zmq-socket))
(params (db:string->obj rawmsg)) ;; (with-input-from-string rawmsg (lambda ()(deserialize))))
(res #f))
(debug:print-info 12 "server=> received params=" params)
(set! res (cdb:cached-access params))
(debug:print-info 12 "server=> processed res=" res)
(send-message zmq-socket (db:obj->string res))
(loop)))))))
;; run server:keep-running in a parallel thread to monitor that the db is being
;; used and to shutdown after sometime if it is not.
;;
(define (server:keep-running db)
;; if none running or if > 20 seconds since
;; server last used then start shutdown
(let loop ()
(thread-sleep! 20) ;; no need to do this very often
(let ((numrunning (db:get-count-tests-running db)))
(if (or (> numrunning 0)
(> (+ *last-db-access* 60)(current-seconds)))
(begin
(debug:print-info 0 "Server continuing, tests running: " numrunning ", seconds since last db access: " (- (current-seconds) *last-db-access*))
(loop))
(begin
(debug:print-info 0 "Starting to shutdown the server side")
;; need to delete only *my* server entry (future use)
(db:del-var db "SERVER")
(thread-sleep! 10)
(debug:print-info 0 "Max cached queries was " *max-cache-size*)
(debug:print-info 0 "Server shutdown complete. Exiting")
;; (exit)))
)))))
(define (server:find-free-port-and-open host s port)
(let ((s (if s s (make-socket 'rep)))
(p (if (number? port) port 5555)))
(handle-exceptions
exn
(begin
(debug:print 0 "Failed to bind to port " p ", trying next port")
(debug:print 0 " EXCEPTION: " ((condition-property-accessor 'exn 'message) exn))
(server:find-free-port-and-open host s (+ p 1)))
(let ((zmq-url (conc "tcp://" host ":" p)))
(print "Trying to start server on " zmq-url)
(bind-socket s zmq-url)
(set! *runremote* #f)
(debug:print 0 "Server started on " zmq-url)
(open-run-close db:set-var #f "SERVER" zmq-url)
s))))
(define (server:client-setup)
(let* ((hostinfo (open-run-close db:get-var #f "SERVER"))
(zmq-socket (make-socket 'req)))
(if hostinfo
(begin
(debug:print-info 2 "Setting up to connect to " hostinfo)
(handle-exceptions
exn
(begin
(debug:print 0 "ERROR: Failed to open a connection to the server at: " hostinfo)
(debug:print 0 " EXCEPTION: " ((condition-property-accessor 'exn 'message) exn))
(debug:print 0 " perhaps jobs killed with -9? Removing server records")
(open-run-close db:del-var #f "SERVER")
(exit)
#f)
(let ((connect-ok #f))
(connect-socket zmq-socket hostinfo)
(set! connect-ok (cdb:client-call zmq-socket 'login #t *toppath*))
(if connect-ok
(begin
(debug:print-info 2 "Logged in and connected to " hostinfo)
(set! *runremote* zmq-socket)
#t)
(begin
(debug:print-info 2 "Failed to login or connect to " hostinfo)
(set! *runremote* #f)
#f)))))
(begin
(debug:print-info 2 "No server available, attempting to start one...")
(system (conc "megatest -server - " (if (args:get-arg "-debug")
(conc "-debug " (args:get-arg "-debug"))
"")
" &"))
(sleep 5)
(server:client-setup)))))
|