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Commit | Line | Data |
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390802ab DM |
1 | package PVE::Daemon; |
2 | ||
3 | # Abstract class to implement Daemons | |
4 | # | |
5 | # Features: | |
6 | # * lock and write PID file /var/run/$name.pid to make sure onyl | |
7 | # one instance is running. | |
8 | # * correctly daemonize (redirect STDIN/STDOUT) | |
4fc69176 DM |
9 | # * restart by stop/start, exec, or signal HUP |
10 | # * daemon restart on error (option 'restart_on_error') | |
b2132054 | 11 | # * handle worker processes (option 'max_workers') |
390802ab DM |
12 | |
13 | use strict; | |
14 | use warnings; | |
15 | use PVE::SafeSyslog; | |
16 | use PVE::INotify; | |
17 | ||
18 | use POSIX ":sys_wait_h"; | |
19 | use Fcntl ':flock'; | |
20 | use Getopt::Long; | |
21 | use Time::HiRes qw (gettimeofday); | |
22 | ||
23 | use base qw(PVE::CLIHandler); | |
24 | ||
390802ab DM |
25 | $ENV{'PATH'} = '/sbin:/bin:/usr/sbin:/usr/bin'; |
26 | ||
27 | my $daemon_initialized = 0; # we only allow one instance | |
28 | ||
3206cdf6 DM |
29 | my $close_daemon_lock = sub { |
30 | my ($self) = @_; | |
31 | ||
eead1ad8 DM |
32 | return if !$self->{daemon_lock_fh}; |
33 | ||
3206cdf6 DM |
34 | close $self->{daemon_lock_fh}; |
35 | delete $self->{daemon_lock_fh}; | |
36 | }; | |
37 | ||
c5611195 DM |
38 | my $log_err = sub { |
39 | my ($msg) = @_; | |
40 | chomp $msg; | |
41 | print STDERR "$msg\n"; | |
42 | syslog('err', "%s", $msg); | |
43 | }; | |
44 | ||
eead1ad8 DM |
45 | # call this if you fork() from child |
46 | # Note: we already call this for workers, so it is only required | |
47 | # if you fork inside a simple daemon (max_workers == 0). | |
48 | sub after_fork_cleanup { | |
49 | my ($self) = @_; | |
50 | ||
51 | &$close_daemon_lock($self); | |
52 | ||
53 | PVE::INotify::inotify_close(); | |
54 | ||
55 | for my $sig (qw(CHLD HUP INT TERM QUIT)) { | |
56 | $SIG{$sig} = 'DEFAULT'; # restore default handler | |
57 | # AnyEvent signals only works if $SIG{XX} is | |
58 | # undefined (perl event loop) | |
59 | delete $SIG{$sig}; # so that we can handle events with AnyEvent | |
60 | } | |
61 | } | |
62 | ||
390802ab DM |
63 | my $lockpidfile = sub { |
64 | my ($self) = @_; | |
65 | ||
66 | my $lkfn = $self->{pidfile} . ".lock"; | |
67 | ||
1a6bc2f3 DM |
68 | if (my $fd = $self->{env_pve_lock_fd}) { |
69 | ||
70 | $self->{daemon_lock_fh} = IO::Handle->new_from_fd($fd, "a"); | |
71 | ||
72 | } else { | |
73 | ||
74 | $self->{daemon_lock_fh} = IO::File->new(">>$lkfn"); | |
75 | } | |
76 | ||
3206cdf6 | 77 | if (!$self->{daemon_lock_fh}) { |
1a6bc2f3 | 78 | die "can't open lock '$lkfn' - $!\n"; |
390802ab DM |
79 | } |
80 | ||
3206cdf6 DM |
81 | for (my $i = 0; $i < 5; $i ++) { |
82 | return if flock ($self->{daemon_lock_fh}, LOCK_EX|LOCK_NB); | |
83 | sleep(1); | |
84 | } | |
85 | ||
86 | if (!flock ($self->{daemon_lock_fh}, LOCK_EX|LOCK_NB)) { | |
87 | &$close_daemon_lock($self); | |
c5611195 DM |
88 | my $err = $!; |
89 | ||
90 | my ($running, $pid) = $self->running(); | |
91 | if ($running) { | |
92 | die "can't aquire lock '$lkfn' - daemon already started (pid = $pid)\n"; | |
93 | } else { | |
94 | die "can't aquire lock '$lkfn' - $err\n"; | |
95 | } | |
390802ab DM |
96 | } |
97 | }; | |
98 | ||
99 | my $writepidfile = sub { | |
100 | my ($self) = @_; | |
101 | ||
102 | my $pidfile = $self->{pidfile}; | |
103 | ||
c5611195 DM |
104 | die "can't open pid file '$pidfile' - $!\n" if !open (PIDFH, ">$pidfile"); |
105 | ||
390802ab DM |
106 | print PIDFH "$$\n"; |
107 | close (PIDFH); | |
108 | }; | |
109 | ||
110 | my $server_cleanup = sub { | |
111 | my ($self) = @_; | |
112 | ||
113 | unlink $self->{pidfile} . ".lock"; | |
114 | unlink $self->{pidfile}; | |
115 | }; | |
116 | ||
b2132054 DM |
117 | my $finish_workers = sub { |
118 | my ($self) = @_; | |
119 | ||
120 | foreach my $cpid (keys %{$self->{workers}}) { | |
121 | my $waitpid = waitpid($cpid, WNOHANG); | |
122 | if (defined($waitpid) && ($waitpid == $cpid)) { | |
123 | delete ($self->{workers}->{$cpid}); | |
124 | syslog('info', "worker $cpid finished"); | |
125 | } | |
126 | } | |
127 | }; | |
128 | ||
129 | my $start_workers = sub { | |
130 | my ($self) = @_; | |
131 | ||
132 | return if $self->{terminate}; | |
133 | ||
134 | my $count = 0; | |
135 | foreach my $cpid (keys %{$self->{workers}}) { | |
136 | $count++; | |
137 | } | |
138 | ||
139 | my $need = $self->{max_workers} - $count; | |
140 | ||
141 | return if $need <= 0; | |
142 | ||
143 | syslog('info', "starting $need worker(s)"); | |
144 | ||
145 | while ($need > 0) { | |
146 | my $pid = fork; | |
147 | ||
148 | if (!defined ($pid)) { | |
149 | syslog('err', "can't fork worker"); | |
150 | sleep (1); | |
151 | } elsif ($pid) { # parent | |
152 | $self->{workers}->{$pid} = 1; | |
153 | syslog('info', "worker $pid started"); | |
154 | $need--; | |
155 | } else { | |
156 | $0 = "$self->{name} worker"; | |
157 | ||
eead1ad8 | 158 | $self->after_fork_cleanup(); |
b2132054 DM |
159 | |
160 | eval { $self->run(); }; | |
161 | if (my $err = $@) { | |
162 | syslog('err', $err); | |
163 | sleep(5); # avoid fast restarts | |
164 | } | |
165 | ||
166 | syslog('info', "worker exit"); | |
167 | exit (0); | |
168 | } | |
169 | } | |
170 | }; | |
171 | ||
172 | my $terminate_server = sub { | |
173 | my ($self) = @_; | |
174 | ||
175 | $self->{terminate} = 1; # set flag to avoid worker restart | |
176 | ||
177 | if (!$self->{max_workers}) { | |
178 | eval { $self->shutdown(); }; | |
179 | warn $@ if $@; | |
180 | return; | |
181 | } | |
182 | ||
183 | eval { $self->shutdown(); }; | |
184 | warn $@ if $@; | |
185 | ||
186 | # we have workers - terminate them | |
187 | ||
188 | foreach my $cpid (keys %{$self->{workers}}) { | |
189 | kill(15, $cpid); # TERM childs | |
190 | } | |
191 | ||
192 | # nicely shutdown childs (give them max 10 seconds to shut down) | |
193 | my $previous_alarm = alarm(10); | |
194 | eval { | |
195 | local $SIG{ALRM} = sub { die "timeout\n" }; | |
196 | ||
197 | while ((my $pid = waitpid (-1, 0)) > 0) { | |
198 | if (defined($self->{workers}->{$pid})) { | |
199 | delete($self->{workers}->{$pid}); | |
200 | syslog('info', "worker $pid finished"); | |
201 | } | |
202 | } | |
203 | alarm(0); # avoid race condition | |
204 | }; | |
205 | my $err = $@; | |
206 | ||
207 | alarm ($previous_alarm); | |
208 | ||
209 | if ($err) { | |
210 | syslog('err', "error stopping workers (will kill them now) - $err"); | |
211 | foreach my $cpid (keys %{$self->{workers}}) { | |
212 | # KILL childs still alive! | |
213 | if (kill (0, $cpid)) { | |
214 | delete($self->{workers}->{$cpid}); | |
215 | syslog("err", "kill worker $cpid"); | |
216 | kill(9, $cpid); | |
217 | # fixme: waitpid? | |
218 | } | |
219 | } | |
220 | } | |
221 | }; | |
222 | ||
390802ab DM |
223 | my $server_run = sub { |
224 | my ($self, $debug) = @_; | |
225 | ||
1a6bc2f3 | 226 | # fixme: handle restart lockfd |
390802ab DM |
227 | &$lockpidfile($self); |
228 | ||
1a6bc2f3 DM |
229 | # remove FD_CLOEXEC bit to reuse on exec |
230 | $self->{daemon_lock_fh}->fcntl(Fcntl::F_SETFD(), 0); | |
231 | ||
232 | $ENV{PVE_DAEMON_LOCK_FD} = $self->{daemon_lock_fh}->fileno; | |
233 | ||
390802ab DM |
234 | # run in background |
235 | my $spid; | |
236 | ||
390802ab DM |
237 | $self->{debug} = 1 if $debug; |
238 | ||
239 | $self->init(); | |
240 | ||
241 | if (!$debug) { | |
242 | open STDIN, '</dev/null' || die "can't read /dev/null"; | |
243 | open STDOUT, '>/dev/null' || die "can't write /dev/null"; | |
244 | } | |
245 | ||
a8ba2293 | 246 | if (!$self->{env_restart_pve_daemon} && !$debug) { |
390802ab DM |
247 | PVE::INotify::inotify_close(); |
248 | $spid = fork(); | |
249 | if (!defined ($spid)) { | |
c5611195 | 250 | die "can't put server into background - fork failed"; |
390802ab DM |
251 | } elsif ($spid) { # parent |
252 | exit (0); | |
253 | } | |
254 | PVE::INotify::inotify_init(); | |
255 | } | |
256 | ||
a8ba2293 | 257 | if ($self->{env_restart_pve_daemon}) { |
390802ab DM |
258 | syslog('info' , "restarting server"); |
259 | } else { | |
c5611195 | 260 | &$writepidfile($self); |
390802ab DM |
261 | syslog('info' , "starting server"); |
262 | } | |
263 | ||
c5611195 DM |
264 | POSIX::setsid(); |
265 | ||
390802ab DM |
266 | open STDERR, '>&STDOUT' || die "can't close STDERR\n"; |
267 | ||
b2132054 DM |
268 | my $old_sig_term = $SIG{TERM}; |
269 | local $SIG{TERM} = sub { | |
270 | local ($@, $!, $?); # do not overwrite error vars | |
271 | syslog('info', "received signal TERM"); | |
272 | &$terminate_server($self); | |
273 | &$server_cleanup($self); | |
274 | &$old_sig_term(@_) if $old_sig_term; | |
275 | }; | |
390802ab | 276 | |
b2132054 DM |
277 | my $old_sig_quit = $SIG{QUIT}; |
278 | local $SIG{QUIT} = sub { | |
279 | local ($@, $!, $?); # do not overwrite error vars | |
280 | syslog('info', "received signal QUIT"); | |
281 | &$terminate_server($self); | |
282 | &$server_cleanup($self); | |
283 | &$old_sig_quit(@_) if $old_sig_quit; | |
284 | }; | |
390802ab | 285 | |
b2132054 DM |
286 | my $old_sig_int = $SIG{INT}; |
287 | local $SIG{INT} = sub { | |
288 | local ($@, $!, $?); # do not overwrite error vars | |
289 | syslog('info', "received signal INT"); | |
290 | $SIG{INT} = 'DEFAULT'; # allow to terminate now | |
291 | &$terminate_server($self); | |
390802ab | 292 | &$server_cleanup($self); |
b2132054 | 293 | &$old_sig_int(@_) if $old_sig_int; |
390802ab DM |
294 | }; |
295 | ||
b2132054 DM |
296 | $SIG{HUP} = sub { |
297 | local ($@, $!, $?); # do not overwrite error vars | |
298 | syslog('info', "received signal HUP"); | |
299 | if ($self->{max_workers}) { | |
300 | &$terminate_server($self); | |
301 | $self->{got_hup_signal} = 1; | |
302 | } elsif ($self->can('hup')) { | |
bdb5acce DM |
303 | eval { $self->hup() }; |
304 | warn $@ if $@; | |
b2132054 DM |
305 | } |
306 | }; | |
307 | ||
308 | eval { | |
309 | if ($self->{max_workers}) { | |
310 | my $old_sig_chld = $SIG{CHLD}; | |
311 | local $SIG{CHLD} = sub { | |
312 | local ($@, $!, $?); # do not overwrite error vars | |
313 | &$finish_workers($self); | |
314 | &$old_sig_chld(@_) if $old_sig_chld; | |
315 | }; | |
316 | ||
317 | for (;;) { # forever | |
318 | &$start_workers($self); | |
319 | sleep(5); | |
320 | &$finish_workers($self); | |
321 | last if $self->{terminate}; | |
322 | } | |
bdb5acce | 323 | |
b2132054 DM |
324 | } else { |
325 | $self->run(); | |
326 | } | |
327 | }; | |
390802ab DM |
328 | my $err = $@; |
329 | ||
330 | if ($err) { | |
331 | syslog ('err', "ERROR: $err"); | |
b2132054 DM |
332 | |
333 | # fixme: kill all workers | |
334 | ||
390802ab DM |
335 | if (my $wait_time = $self->{restart_on_error}) { |
336 | $self->restart_daemon($wait_time); | |
337 | } else { | |
338 | $self->exit_daemon(-1); | |
339 | } | |
340 | } | |
341 | ||
b2132054 DM |
342 | if ($self->{got_hup_signal}) { |
343 | $self->restart_daemon(); | |
344 | } else { | |
345 | $self->exit_daemon(0); | |
346 | } | |
390802ab DM |
347 | }; |
348 | ||
349 | sub new { | |
350 | my ($this, $name, $cmdline, %params) = @_; | |
351 | ||
1a6bc2f3 DM |
352 | die "missing name" if !$name; |
353 | ||
354 | initlog($name); | |
a8ba2293 | 355 | |
1a6bc2f3 | 356 | my $restart = $ENV{RESTART_PVE_DAEMON}; |
a8ba2293 DM |
357 | delete $ENV{RESTART_PVE_DAEMON}; |
358 | ||
1a6bc2f3 DM |
359 | my $lockfd = $ENV{PVE_DAEMON_LOCK_FD}; |
360 | delete $ENV{PVE_DAEMON_LOCK_FD}; | |
390802ab | 361 | |
1a6bc2f3 | 362 | die "please run as root\n" if !$restart && ($> != 0); |
390802ab DM |
363 | |
364 | die "can't create more that one PVE::Daemon" if $daemon_initialized; | |
365 | $daemon_initialized = 1; | |
366 | ||
367 | PVE::INotify::inotify_init(); | |
368 | ||
390802ab DM |
369 | my $class = ref($this) || $this; |
370 | ||
bdb5acce DM |
371 | my $self = bless { |
372 | name => $name, | |
373 | run_dir => '/var/run', | |
a8ba2293 | 374 | env_restart_pve_daemon => $restart, |
1a6bc2f3 | 375 | env_pve_lock_fd => $lockfd, |
b2132054 | 376 | workers => {}, |
bdb5acce | 377 | }, $class; |
390802ab DM |
378 | |
379 | foreach my $opt (keys %params) { | |
380 | my $value = $params{$opt}; | |
381 | if ($opt eq 'restart_on_error') { | |
382 | $self->{$opt} = $value; | |
383 | } elsif ($opt eq 'stop_wait_time') { | |
384 | $self->{$opt} = $value; | |
bdb5acce DM |
385 | } elsif ($opt eq 'run_dir') { |
386 | $self->{$opt} = $value; | |
b2132054 DM |
387 | } elsif ($opt eq 'max_workers') { |
388 | $self->{$opt} = $value; | |
390802ab DM |
389 | } else { |
390 | die "unknown option '$opt'"; | |
391 | } | |
392 | } | |
393 | ||
bdb5acce DM |
394 | $self->{pidfile} = "$self->{run_dir}/${name}.pid"; |
395 | ||
396 | $self->{nodename} = PVE::INotify::nodename(); | |
397 | ||
b2132054 | 398 | $self->{cmdline} = []; |
bdb5acce | 399 | |
b2132054 DM |
400 | foreach my $el (@$cmdline) { |
401 | $el =~ m/^(.*)$/; # untaint | |
402 | push @{$self->{cmdline}}, $1; | |
403 | } | |
bdb5acce | 404 | |
b2132054 | 405 | $0 = $name; |
bdb5acce | 406 | |
390802ab DM |
407 | return $self; |
408 | } | |
409 | ||
410 | sub exit_daemon { | |
411 | my ($self, $status) = @_; | |
412 | ||
413 | syslog("info", "server stopped"); | |
414 | ||
415 | &$server_cleanup($self); | |
416 | ||
417 | exit($status); | |
418 | } | |
419 | ||
420 | sub restart_daemon { | |
421 | my ($self, $waittime) = @_; | |
422 | ||
423 | syslog('info', "server shutdown (restart)"); | |
424 | ||
425 | $ENV{RESTART_PVE_DAEMON} = 1; | |
426 | ||
427 | sleep($waittime) if $waittime; # avoid high server load due to restarts | |
428 | ||
429 | PVE::INotify::inotify_close(); | |
430 | ||
431 | exec (@{$self->{cmdline}}); | |
432 | ||
433 | exit (-1); # never reached? | |
434 | } | |
435 | ||
436 | # please overwrite in subclass | |
437 | # this is called at startup - before forking | |
438 | sub init { | |
439 | my ($self) = @_; | |
440 | ||
441 | } | |
442 | ||
443 | # please overwrite in subclass | |
444 | sub shutdown { | |
445 | my ($self) = @_; | |
446 | ||
447 | syslog('info' , "server closing"); | |
448 | ||
b2132054 DM |
449 | if (!$self->{max_workers}) { |
450 | # wait for children | |
451 | 1 while (waitpid(-1, POSIX::WNOHANG()) > 0); | |
452 | } | |
390802ab DM |
453 | } |
454 | ||
bdb5acce DM |
455 | # please define in subclass |
456 | #sub hup { | |
457 | # my ($self) = @_; | |
458 | # | |
459 | # syslog('info' , "received signal HUP (restart)"); | |
460 | #} | |
390802ab DM |
461 | |
462 | # please overwrite in subclass | |
463 | sub run { | |
464 | my ($self) = @_; | |
465 | ||
466 | for (;;) { # forever | |
467 | syslog('info' , "server is running"); | |
468 | sleep(5); | |
469 | } | |
470 | } | |
471 | ||
472 | sub start { | |
473 | my ($self, $debug) = @_; | |
474 | ||
1a6bc2f3 DM |
475 | eval { &$server_run($self, $debug); }; |
476 | if (my $err = $@) { | |
c5611195 DM |
477 | &$log_err("start failed - $err"); |
478 | exit(-1); | |
1a6bc2f3 | 479 | } |
390802ab DM |
480 | } |
481 | ||
bdb5acce DM |
482 | my $read_pid = sub { |
483 | my ($self) = @_; | |
484 | ||
485 | my $pid_str = PVE::Tools::file_read_firstline($self->{pidfile}); | |
486 | ||
487 | return 0 if !$pid_str; | |
488 | ||
489 | return 0 if $pid_str !~ m/^(\d+)$/; # untaint | |
490 | ||
491 | my $pid = int($1); | |
492 | ||
493 | return $pid; | |
494 | }; | |
495 | ||
390802ab DM |
496 | sub running { |
497 | my ($self) = @_; | |
498 | ||
bdb5acce | 499 | my $pid = &$read_pid($self); |
390802ab DM |
500 | |
501 | if ($pid) { | |
502 | my $res = PVE::ProcFSTools::check_process_running($pid) ? 1 : 0; | |
503 | return wantarray ? ($res, $pid) : $res; | |
504 | } | |
505 | ||
506 | return wantarray ? (0, 0) : 0; | |
507 | } | |
508 | ||
509 | sub stop { | |
510 | my ($self) = @_; | |
511 | ||
bdb5acce DM |
512 | my $pid = &$read_pid($self); |
513 | ||
390802ab DM |
514 | return if !$pid; |
515 | ||
516 | if (PVE::ProcFSTools::check_process_running($pid)) { | |
517 | kill(15, $pid); # send TERM signal | |
518 | # give some time | |
519 | my $wait_time = $self->{stop_wait_time} || 5; | |
520 | my $running = 1; | |
521 | for (my $i = 0; $i < $wait_time; $i++) { | |
522 | $running = PVE::ProcFSTools::check_process_running($pid); | |
523 | last if !$running; | |
524 | sleep (1); | |
525 | } | |
526 | ||
527 | syslog('err', "server still running - send KILL") if $running; | |
528 | ||
529 | # to be sure | |
530 | kill(9, $pid); | |
531 | waitpid($pid, 0); | |
532 | } | |
533 | ||
534 | if (-f $self->{pidfile}) { | |
1a6bc2f3 DM |
535 | eval { |
536 | # try to get the lock | |
537 | &$lockpidfile($self); | |
538 | &$server_cleanup($self); | |
539 | }; | |
540 | if (my $err = $@) { | |
c5611195 | 541 | &$log_err("cleanup failed - $err"); |
1a6bc2f3 | 542 | } |
390802ab DM |
543 | } |
544 | } | |
545 | ||
546 | sub register_start_command { | |
547 | my ($self, $class, $description) = @_; | |
548 | ||
549 | $class->register_method({ | |
550 | name => 'start', | |
551 | path => 'start', | |
552 | method => 'POST', | |
553 | description => $description || "Start the daemon.", | |
554 | parameters => { | |
555 | additionalProperties => 0, | |
556 | properties => { | |
557 | debug => { | |
558 | description => "Debug mode - stay in foreground", | |
559 | type => "boolean", | |
560 | optional => 1, | |
561 | default => 0, | |
562 | }, | |
563 | }, | |
564 | }, | |
565 | returns => { type => 'null' }, | |
566 | ||
567 | code => sub { | |
568 | my ($param) = @_; | |
569 | ||
570 | $self->start($param->{debug}); | |
571 | ||
572 | return undef; | |
573 | }}); | |
574 | } | |
575 | ||
bdb5acce DM |
576 | my $reload_daemon = sub { |
577 | my ($self, $use_hup) = @_; | |
578 | ||
a8ba2293 | 579 | if ($self->{env_restart_pve_daemon}) { |
bdb5acce DM |
580 | $self->start(); |
581 | } else { | |
582 | my ($running, $pid) = $self->running(); | |
583 | if (!$running) { | |
584 | $self->start(); | |
585 | } else { | |
586 | if ($use_hup) { | |
b2132054 DM |
587 | syslog('info', "send HUP to $pid"); |
588 | kill 1, $pid; | |
bdb5acce DM |
589 | } else { |
590 | $self->stop(); | |
591 | $self->start(); | |
592 | } | |
593 | } | |
594 | } | |
595 | }; | |
596 | ||
390802ab | 597 | sub register_restart_command { |
bdb5acce | 598 | my ($self, $class, $use_hup, $description) = @_; |
390802ab DM |
599 | |
600 | $class->register_method({ | |
601 | name => 'restart', | |
602 | path => 'restart', | |
603 | method => 'POST', | |
604 | description => $description || "Restart the daemon (or start if not running).", | |
605 | parameters => { | |
606 | additionalProperties => 0, | |
607 | properties => {}, | |
608 | }, | |
609 | returns => { type => 'null' }, | |
610 | ||
611 | code => sub { | |
612 | my ($param) = @_; | |
613 | ||
bdb5acce DM |
614 | &$reload_daemon($self, $use_hup); |
615 | ||
616 | return undef; | |
617 | }}); | |
618 | } | |
619 | ||
620 | sub register_reload_command { | |
621 | my ($self, $class, $description) = @_; | |
622 | ||
623 | $class->register_method({ | |
624 | name => 'reload', | |
625 | path => 'reload', | |
626 | method => 'POST', | |
627 | description => $description || "Reload daemon configuration (or start if not running).", | |
628 | parameters => { | |
629 | additionalProperties => 0, | |
630 | properties => {}, | |
631 | }, | |
632 | returns => { type => 'null' }, | |
633 | ||
634 | code => sub { | |
635 | my ($param) = @_; | |
636 | ||
637 | &$reload_daemon($self, 1); | |
390802ab DM |
638 | |
639 | return undef; | |
640 | }}); | |
641 | } | |
642 | ||
643 | sub register_stop_command { | |
644 | my ($self, $class, $description) = @_; | |
645 | ||
646 | $class->register_method({ | |
647 | name => 'stop', | |
648 | path => 'stop', | |
649 | method => 'POST', | |
650 | description => $description || "Stop the daemon.", | |
651 | parameters => { | |
652 | additionalProperties => 0, | |
653 | properties => {}, | |
654 | }, | |
655 | returns => { type => 'null' }, | |
656 | ||
657 | code => sub { | |
658 | my ($param) = @_; | |
659 | ||
660 | $self->stop(); | |
661 | ||
662 | return undef; | |
663 | }}); | |
664 | } | |
665 | ||
666 | sub register_status_command { | |
667 | my ($self, $class, $description) = @_; | |
668 | ||
669 | $class->register_method({ | |
670 | name => 'status', | |
671 | path => 'status', | |
672 | method => 'GET', | |
673 | description => "Get daemon status.", | |
674 | parameters => { | |
675 | additionalProperties => 0, | |
676 | properties => {}, | |
677 | }, | |
678 | returns => { | |
679 | type => 'string', | |
680 | enum => ['stopped', 'running'], | |
681 | }, | |
682 | code => sub { | |
683 | my ($param) = @_; | |
684 | ||
685 | return $self->running() ? 'running' : 'stopped'; | |
686 | }}); | |
687 | } | |
688 | ||
689 | 1; | |
690 |