21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
|
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
|
-
+
|
(let loop ((res ""))
(if (not (eof-object? (peek-char port)))
(loop (conc res (read-char port)))
res)))
(define (process:cmd-run-with-stderr->list cmd . params)
;; (print "Called with cmd=" cmd ", proc=" proc ", params=" params)
;; (handle-exceptions
;; (common:debug-handle-exceptions #t
;; exn
;; (begin
;; (print "ERROR: Failed to run command: " cmd " " (string-intersperse params " "))
;; (print " " ((condition-property-accessor 'exn 'message) exn))
;; #f)
(let-values (((fh fho pid fhe) (if (null? params)
(process* cmd)
|
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
|
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
|
-
+
|
(close-input-port fh)
(close-input-port fhe)
(close-output-port fho)
result))))) ;; )
(define (process:cmd-run-proc-each-line cmd proc . params)
;; (print "Called with cmd=" cmd ", proc=" proc ", params=" params)
(handle-exceptions
(common:debug-handle-exceptions #t
exn
(begin
(print "ERROR: Failed to run command: " cmd " " (string-intersperse params " "))
(debug:print 0 *default-log-port* " message: " ((condition-property-accessor 'exn 'message) exn))
(print "exn=" (condition->list exn))
#f)
(let-values (((fh fho pid) (if (null? params)
|
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
|
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
|
-
+
-
+
|
(if (eof-object? inl)
(reverse res)
(let ((pid (string->number inl)))
(if proc (proc pid))
(loop (read-line) (cons pid res))))))))
(define (process:alive? pid)
(handle-exceptions
(common:debug-handle-exceptions #t
exn
;; possibly pid is a process not a child, look in /proc to see if it is running still
(file-exists? (conc "/proc/" pid))
(let-values (((rpid exit-type exit-signal)(process-wait pid #t)))
(and (number? rpid)
(equal? rpid pid)))))
(define (process:alive-on-host? host pid)
(let ((cmd (conc "ssh " host " ps -o pid= -p " pid)))
(handle-exceptions
(common:debug-handle-exceptions #t
exn
#f ;; anything goes wrong - assume the process in NOT running.
(with-input-from-pipe
cmd
(lambda ()
(let loop ((inl (read-line)))
(if (eof-object? inl)
|