Megatest

Check-in [182a73b7ce]
Login
☰Home Timeline Files Branches Tags Tickets Wiki Login
Overview
Comment:Added exception handler to tasks:open-db
Downloads: Tarball | ZIP archive | SQL archive
Timelines: family | ancestors | descendants | both | v1.60
Files: files | file ages | folders
SHA1: 182a73b7ce33063ea4c821d98780eb7f465070a5
User & Date: mrwellan on 2014-11-14 07:16:07
Other Links: branch diff | manifest | tags
Context
2014-11-14
07:50
Added removal of old tasks entries check-in: 9bebf08382 user: mrwellan tags: v1.60
07:16
Added exception handler to tasks:open-db check-in: 182a73b7ce user: mrwellan tags: v1.60
2014-11-13
18:06
Correctly qualified the check of the connection - was erroring out sometimes check-in: 9b2b3866ab user: mrwellan tags: v1.60
Changes
Hide Diffs Unified Diffs Ignore Whitespace Patch

Modified tasks.scm from [c8e0f86792] to [a4b91e5854].

︙︙
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

;;         ==> open it
;; If file exists AND
;;    file NOT readable
;;         ==> open in-mem version
;; If file NOT exists
;;    ==> open in-mem version
;;
(define (tasks:open-db)
  (if *task-db*
      *task-db*









      (let* ((dbpath       (tasks:get-task-db-path))
	     (avail        (tasks:wait-on-journal dbpath 10)) ;; wait up to about 10 seconds for the journal to go away
	     (exists       (file-exists? dbpath))
	     (write-access (file-write-access? dbpath))
	     (mdb          (cond
			    ((file-write-access? *toppath*)(sqlite3:open-database dbpath))
			    ((file-read-access? dbpath)    (sqlite3:open-database dbpath))
			    (else (sqlite3:open-database ":memory:")))) ;; (never-give-up-open-db dbpath))
	     (handler      (make-busy-timeout 36000)))
	(if (and exists
		 (not write-access))
	    (set! *db-write-access* write-access)) ;; only unset so other db's also can use this control
	(sqlite3:set-busy-handler! mdb handler)
	(sqlite3:execute mdb (conc "PRAGMA synchronous = 0;"))
	(if (or (and (not exists)
		     (file-write-access? *toppath*))
		(not (file-read-access? dbpath)))
	    (begin
	      (sqlite3:execute mdb "CREATE TABLE IF NOT EXISTS tasks_queue (id INTEGER PRIMARY KEY,
                                action TEXT DEFAULT '',
                                owner TEXT,
                                state TEXT DEFAULT 'new',
                                target TEXT DEFAULT '',
                                name TEXT DEFAULT '',
                                testpatt TEXT DEFAULT '',
                                keylock TEXT,
                                params TEXT,
                                creation_time TIMESTAMP,
                                execution_time TIMESTAMP);")
	      (sqlite3:execute mdb "CREATE TABLE IF NOT EXISTS monitors (id INTEGER PRIMARY KEY,
                                pid INTEGER,
                                start_time TIMESTAMP,
                                last_update TIMESTAMP,
                                hostname TEXT,
                                username TEXT,
                               CONSTRAINT monitors_constraint UNIQUE (pid,hostname));")
	      (sqlite3:execute mdb "CREATE TABLE IF NOT EXISTS servers (id INTEGER PRIMARY KEY,
                                  pid INTEGER,
                                  interface TEXT,
                                  hostname TEXT,
                                  port INTEGER,
                                  pubport INTEGER,
                                  start_time TIMESTAMP,
                                  priority INTEGER,
                                  state TEXT,
                                  mt_version TEXT,
                                  heartbeat TIMESTAMP,
                                  transport TEXT,
                                  run_id INTEGER);")
	      ;;                               CONSTRAINT servers_constraint UNIQUE (pid,hostname,port));")
	      (sqlite3:execute mdb "CREATE TABLE IF NOT EXISTS clients (id INTEGER PRIMARY KEY,
                                  server_id INTEGER,
                                  pid INTEGER,
                                  hostname TEXT,
                                  cmdline TEXT,
                                  login_time TIMESTAMP,
                                  logout_time TIMESTAMP DEFAULT -1,
                                CONSTRAINT clients_constraint UNIQUE (pid,hostname));")
	      
	      ))
	(set! *task-db* (cons mdb dbpath))
	*task-db*)))

;;======================================================================
;; Server and client management
;;======================================================================

;; make-vector-record tasks hostinfo id interface port pubport transport pid hostname
(define (tasks:hostinfo-get-id          vec)    (vector-ref  vec 0))








|


>
>
>
>
>
>
>
>
>
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|










|






|












|
|







|
|
|
|








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

;;         ==> open it
;; If file exists AND
;;    file NOT readable
;;         ==> open in-mem version
;; If file NOT exists
;;    ==> open in-mem version
;;
(define (tasks:open-db #!key (numretries 4))
  (if *task-db*
      *task-db*
      (handle-exceptions
       exn
       (if (> numretries 0)
	   (begin
	     (thread-sleep! 1)
	     (tasks:open-db numretries (- numretries 1)))
	   (begin
	     (debug:print 0 " message: " ((condition-property-accessor 'exn 'message) exn))
	     (print "exn=" (condition->list exn))))
       (let* ((dbpath       (tasks:get-task-db-path))
	      (avail        (tasks:wait-on-journal dbpath 10)) ;; wait up to about 10 seconds for the journal to go away
	      (exists       (file-exists? dbpath))
	      (write-access (file-write-access? dbpath))
	      (mdb          (cond
			     ((file-write-access? *toppath*)(sqlite3:open-database dbpath))
			     ((file-read-access? dbpath)    (sqlite3:open-database dbpath))
			     (else (sqlite3:open-database ":memory:")))) ;; (never-give-up-open-db dbpath))
	      (handler      (make-busy-timeout 36000)))
	 (if (and exists
		  (not write-access))
	     (set! *db-write-access* write-access)) ;; only unset so other db's also can use this control
	 (sqlite3:set-busy-handler! mdb handler)
	 (sqlite3:execute mdb (conc "PRAGMA synchronous = 0;"))
	 (if (or (and (not exists)
		      (file-write-access? *toppath*))
		 (not (file-read-access? dbpath)))
	     (begin
	       (sqlite3:execute mdb "CREATE TABLE IF NOT EXISTS tasks_queue (id INTEGER PRIMARY KEY,
                                action TEXT DEFAULT '',
                                owner TEXT,
                                state TEXT DEFAULT 'new',
                                target TEXT DEFAULT '',
                                name TEXT DEFAULT '',
                                testpatt TEXT DEFAULT '',
                                keylock TEXT,
                                params TEXT,
                                creation_time TIMESTAMP,
                                execution_time TIMESTAMP);")
	       (sqlite3:execute mdb "CREATE TABLE IF NOT EXISTS monitors (id INTEGER PRIMARY KEY,
                                pid INTEGER,
                                start_time TIMESTAMP,
                                last_update TIMESTAMP,
                                hostname TEXT,
                                username TEXT,
                               CONSTRAINT monitors_constraint UNIQUE (pid,hostname));")
	       (sqlite3:execute mdb "CREATE TABLE IF NOT EXISTS servers (id INTEGER PRIMARY KEY,
                                  pid INTEGER,
                                  interface TEXT,
                                  hostname TEXT,
                                  port INTEGER,
                                  pubport INTEGER,
                                  start_time TIMESTAMP,
                                  priority INTEGER,
                                  state TEXT,
                                  mt_version TEXT,
                                  heartbeat TIMESTAMP,
                                  transport TEXT,
                                  run_id INTEGER);")
	       ;;                               CONSTRAINT servers_constraint UNIQUE (pid,hostname,port));")
	       (sqlite3:execute mdb "CREATE TABLE IF NOT EXISTS clients (id INTEGER PRIMARY KEY,
                                  server_id INTEGER,
                                  pid INTEGER,
                                  hostname TEXT,
                                  cmdline TEXT,
                                  login_time TIMESTAMP,
                                  logout_time TIMESTAMP DEFAULT -1,
                                CONSTRAINT clients_constraint UNIQUE (pid,hostname));")
	       
	       ))
	 (set! *task-db* (cons mdb dbpath))
	 *task-db*))))

;;======================================================================
;; Server and client management
;;======================================================================

;; make-vector-record tasks hostinfo id interface port pubport transport pid hostname
(define (tasks:hostinfo-get-id          vec)    (vector-ref  vec 0))
︙︙

This page was generated in about 0.104s by Fossil 2.24 [452f8e1ffc] 2024-03-26 15:36:00