]>
Commit | Line | Data |
---|---|---|
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. | |
d7950851 | 8 | # * keep lock open during restart |
390802ab | 9 | # * correctly daemonize (redirect STDIN/STDOUT) |
4fc69176 DM |
10 | # * restart by stop/start, exec, or signal HUP |
11 | # * daemon restart on error (option 'restart_on_error') | |
b2132054 | 12 | # * handle worker processes (option 'max_workers') |
d7950851 DM |
13 | # * allow to restart while workers are still runningl |
14 | # (option 'leave_children_open_on_reload') | |
15 | ||
390802ab DM |
16 | use strict; |
17 | use warnings; | |
18 | use PVE::SafeSyslog; | |
19 | use PVE::INotify; | |
20 | ||
21 | use POSIX ":sys_wait_h"; | |
22 | use Fcntl ':flock'; | |
23 | use Getopt::Long; | |
24 | use Time::HiRes qw (gettimeofday); | |
25 | ||
26 | use base qw(PVE::CLIHandler); | |
27 | ||
390802ab DM |
28 | $ENV{'PATH'} = '/sbin:/bin:/usr/sbin:/usr/bin'; |
29 | ||
30 | my $daemon_initialized = 0; # we only allow one instance | |
31 | ||
3206cdf6 DM |
32 | my $close_daemon_lock = sub { |
33 | my ($self) = @_; | |
34 | ||
eead1ad8 DM |
35 | return if !$self->{daemon_lock_fh}; |
36 | ||
3206cdf6 DM |
37 | close $self->{daemon_lock_fh}; |
38 | delete $self->{daemon_lock_fh}; | |
39 | }; | |
40 | ||
c5611195 DM |
41 | my $log_err = sub { |
42 | my ($msg) = @_; | |
43 | chomp $msg; | |
44 | print STDERR "$msg\n"; | |
45 | syslog('err', "%s", $msg); | |
46 | }; | |
47 | ||
eead1ad8 DM |
48 | # call this if you fork() from child |
49 | # Note: we already call this for workers, so it is only required | |
50 | # if you fork inside a simple daemon (max_workers == 0). | |
51 | sub after_fork_cleanup { | |
52 | my ($self) = @_; | |
53 | ||
54 | &$close_daemon_lock($self); | |
55 | ||
56 | PVE::INotify::inotify_close(); | |
57 | ||
58 | for my $sig (qw(CHLD HUP INT TERM QUIT)) { | |
59 | $SIG{$sig} = 'DEFAULT'; # restore default handler | |
60 | # AnyEvent signals only works if $SIG{XX} is | |
61 | # undefined (perl event loop) | |
62 | delete $SIG{$sig}; # so that we can handle events with AnyEvent | |
63 | } | |
64 | } | |
65 | ||
390802ab DM |
66 | my $lockpidfile = sub { |
67 | my ($self) = @_; | |
68 | ||
69 | my $lkfn = $self->{pidfile} . ".lock"; | |
70 | ||
48876459 DM |
71 | my $waittime = 0; |
72 | ||
1a6bc2f3 DM |
73 | if (my $fd = $self->{env_pve_lock_fd}) { |
74 | ||
75 | $self->{daemon_lock_fh} = IO::Handle->new_from_fd($fd, "a"); | |
48876459 | 76 | |
1a6bc2f3 DM |
77 | } else { |
78 | ||
48876459 | 79 | $waittime = 5; |
1a6bc2f3 DM |
80 | $self->{daemon_lock_fh} = IO::File->new(">>$lkfn"); |
81 | } | |
82 | ||
3206cdf6 | 83 | if (!$self->{daemon_lock_fh}) { |
1a6bc2f3 | 84 | die "can't open lock '$lkfn' - $!\n"; |
390802ab DM |
85 | } |
86 | ||
48876459 | 87 | for (my $i = 0; $i < $waittime; $i ++) { |
3206cdf6 DM |
88 | return if flock ($self->{daemon_lock_fh}, LOCK_EX|LOCK_NB); |
89 | sleep(1); | |
90 | } | |
91 | ||
92 | if (!flock ($self->{daemon_lock_fh}, LOCK_EX|LOCK_NB)) { | |
93 | &$close_daemon_lock($self); | |
c5611195 DM |
94 | my $err = $!; |
95 | ||
96 | my ($running, $pid) = $self->running(); | |
97 | if ($running) { | |
98 | die "can't aquire lock '$lkfn' - daemon already started (pid = $pid)\n"; | |
99 | } else { | |
100 | die "can't aquire lock '$lkfn' - $err\n"; | |
101 | } | |
390802ab DM |
102 | } |
103 | }; | |
104 | ||
105 | my $writepidfile = sub { | |
106 | my ($self) = @_; | |
107 | ||
108 | my $pidfile = $self->{pidfile}; | |
109 | ||
c5611195 DM |
110 | die "can't open pid file '$pidfile' - $!\n" if !open (PIDFH, ">$pidfile"); |
111 | ||
390802ab DM |
112 | print PIDFH "$$\n"; |
113 | close (PIDFH); | |
114 | }; | |
115 | ||
116 | my $server_cleanup = sub { | |
117 | my ($self) = @_; | |
118 | ||
119 | unlink $self->{pidfile} . ".lock"; | |
120 | unlink $self->{pidfile}; | |
121 | }; | |
122 | ||
b2132054 DM |
123 | my $finish_workers = sub { |
124 | my ($self) = @_; | |
125 | ||
d7950851 DM |
126 | foreach my $id (qw(workers old_workers)) { |
127 | foreach my $cpid (keys %{$self->{$id}}) { | |
128 | my $waitpid = waitpid($cpid, WNOHANG); | |
129 | if (defined($waitpid) && ($waitpid == $cpid)) { | |
130 | delete ($self->{$id}->{$cpid}); | |
131 | syslog('info', "worker $cpid finished"); | |
132 | } | |
b2132054 DM |
133 | } |
134 | } | |
135 | }; | |
136 | ||
137 | my $start_workers = sub { | |
138 | my ($self) = @_; | |
139 | ||
140 | return if $self->{terminate}; | |
141 | ||
142 | my $count = 0; | |
143 | foreach my $cpid (keys %{$self->{workers}}) { | |
144 | $count++; | |
145 | } | |
146 | ||
147 | my $need = $self->{max_workers} - $count; | |
148 | ||
149 | return if $need <= 0; | |
150 | ||
151 | syslog('info', "starting $need worker(s)"); | |
152 | ||
153 | while ($need > 0) { | |
154 | my $pid = fork; | |
155 | ||
156 | if (!defined ($pid)) { | |
157 | syslog('err', "can't fork worker"); | |
158 | sleep (1); | |
159 | } elsif ($pid) { # parent | |
160 | $self->{workers}->{$pid} = 1; | |
161 | syslog('info', "worker $pid started"); | |
162 | $need--; | |
163 | } else { | |
164 | $0 = "$self->{name} worker"; | |
165 | ||
eead1ad8 | 166 | $self->after_fork_cleanup(); |
b2132054 DM |
167 | |
168 | eval { $self->run(); }; | |
169 | if (my $err = $@) { | |
170 | syslog('err', $err); | |
171 | sleep(5); # avoid fast restarts | |
172 | } | |
173 | ||
174 | syslog('info', "worker exit"); | |
175 | exit (0); | |
176 | } | |
177 | } | |
178 | }; | |
179 | ||
180 | my $terminate_server = sub { | |
181 | my ($self) = @_; | |
182 | ||
183 | $self->{terminate} = 1; # set flag to avoid worker restart | |
184 | ||
185 | if (!$self->{max_workers}) { | |
186 | eval { $self->shutdown(); }; | |
187 | warn $@ if $@; | |
188 | return; | |
189 | } | |
190 | ||
191 | eval { $self->shutdown(); }; | |
192 | warn $@ if $@; | |
193 | ||
194 | # we have workers - terminate them | |
195 | ||
196 | foreach my $cpid (keys %{$self->{workers}}) { | |
197 | kill(15, $cpid); # TERM childs | |
198 | } | |
199 | ||
d7950851 DM |
200 | return if $self->{got_hup_signal} && |
201 | $self->{leave_children_open_on_reload}; | |
202 | ||
b2132054 DM |
203 | # nicely shutdown childs (give them max 10 seconds to shut down) |
204 | my $previous_alarm = alarm(10); | |
205 | eval { | |
206 | local $SIG{ALRM} = sub { die "timeout\n" }; | |
207 | ||
208 | while ((my $pid = waitpid (-1, 0)) > 0) { | |
209 | if (defined($self->{workers}->{$pid})) { | |
210 | delete($self->{workers}->{$pid}); | |
211 | syslog('info', "worker $pid finished"); | |
212 | } | |
213 | } | |
214 | alarm(0); # avoid race condition | |
215 | }; | |
216 | my $err = $@; | |
217 | ||
218 | alarm ($previous_alarm); | |
219 | ||
220 | if ($err) { | |
221 | syslog('err', "error stopping workers (will kill them now) - $err"); | |
222 | foreach my $cpid (keys %{$self->{workers}}) { | |
223 | # KILL childs still alive! | |
224 | if (kill (0, $cpid)) { | |
225 | delete($self->{workers}->{$cpid}); | |
226 | syslog("err", "kill worker $cpid"); | |
227 | kill(9, $cpid); | |
228 | # fixme: waitpid? | |
229 | } | |
230 | } | |
231 | } | |
232 | }; | |
233 | ||
390802ab DM |
234 | my $server_run = sub { |
235 | my ($self, $debug) = @_; | |
236 | ||
1a6bc2f3 | 237 | # fixme: handle restart lockfd |
390802ab DM |
238 | &$lockpidfile($self); |
239 | ||
1a6bc2f3 DM |
240 | # remove FD_CLOEXEC bit to reuse on exec |
241 | $self->{daemon_lock_fh}->fcntl(Fcntl::F_SETFD(), 0); | |
242 | ||
243 | $ENV{PVE_DAEMON_LOCK_FD} = $self->{daemon_lock_fh}->fileno; | |
244 | ||
390802ab DM |
245 | # run in background |
246 | my $spid; | |
247 | ||
390802ab DM |
248 | $self->{debug} = 1 if $debug; |
249 | ||
250 | $self->init(); | |
251 | ||
252 | if (!$debug) { | |
253 | open STDIN, '</dev/null' || die "can't read /dev/null"; | |
254 | open STDOUT, '>/dev/null' || die "can't write /dev/null"; | |
255 | } | |
256 | ||
a8ba2293 | 257 | if (!$self->{env_restart_pve_daemon} && !$debug) { |
390802ab DM |
258 | PVE::INotify::inotify_close(); |
259 | $spid = fork(); | |
260 | if (!defined ($spid)) { | |
c5611195 | 261 | die "can't put server into background - fork failed"; |
390802ab DM |
262 | } elsif ($spid) { # parent |
263 | exit (0); | |
264 | } | |
265 | PVE::INotify::inotify_init(); | |
266 | } | |
267 | ||
a8ba2293 | 268 | if ($self->{env_restart_pve_daemon}) { |
390802ab DM |
269 | syslog('info' , "restarting server"); |
270 | } else { | |
c5611195 | 271 | &$writepidfile($self); |
390802ab DM |
272 | syslog('info' , "starting server"); |
273 | } | |
274 | ||
c5611195 DM |
275 | POSIX::setsid(); |
276 | ||
390802ab DM |
277 | open STDERR, '>&STDOUT' || die "can't close STDERR\n"; |
278 | ||
b2132054 DM |
279 | my $old_sig_term = $SIG{TERM}; |
280 | local $SIG{TERM} = sub { | |
281 | local ($@, $!, $?); # do not overwrite error vars | |
282 | syslog('info', "received signal TERM"); | |
283 | &$terminate_server($self); | |
284 | &$server_cleanup($self); | |
285 | &$old_sig_term(@_) if $old_sig_term; | |
286 | }; | |
390802ab | 287 | |
b2132054 DM |
288 | my $old_sig_quit = $SIG{QUIT}; |
289 | local $SIG{QUIT} = sub { | |
290 | local ($@, $!, $?); # do not overwrite error vars | |
291 | syslog('info', "received signal QUIT"); | |
292 | &$terminate_server($self); | |
293 | &$server_cleanup($self); | |
294 | &$old_sig_quit(@_) if $old_sig_quit; | |
295 | }; | |
390802ab | 296 | |
b2132054 DM |
297 | my $old_sig_int = $SIG{INT}; |
298 | local $SIG{INT} = sub { | |
299 | local ($@, $!, $?); # do not overwrite error vars | |
300 | syslog('info', "received signal INT"); | |
301 | $SIG{INT} = 'DEFAULT'; # allow to terminate now | |
302 | &$terminate_server($self); | |
390802ab | 303 | &$server_cleanup($self); |
b2132054 | 304 | &$old_sig_int(@_) if $old_sig_int; |
390802ab DM |
305 | }; |
306 | ||
b2132054 DM |
307 | $SIG{HUP} = sub { |
308 | local ($@, $!, $?); # do not overwrite error vars | |
309 | syslog('info', "received signal HUP"); | |
93710700 | 310 | $self->{got_hup_signal} = 1; |
b2132054 DM |
311 | if ($self->{max_workers}) { |
312 | &$terminate_server($self); | |
b2132054 | 313 | } elsif ($self->can('hup')) { |
bdb5acce DM |
314 | eval { $self->hup() }; |
315 | warn $@ if $@; | |
b2132054 DM |
316 | } |
317 | }; | |
318 | ||
319 | eval { | |
320 | if ($self->{max_workers}) { | |
321 | my $old_sig_chld = $SIG{CHLD}; | |
322 | local $SIG{CHLD} = sub { | |
323 | local ($@, $!, $?); # do not overwrite error vars | |
324 | &$finish_workers($self); | |
325 | &$old_sig_chld(@_) if $old_sig_chld; | |
326 | }; | |
327 | ||
328 | for (;;) { # forever | |
329 | &$start_workers($self); | |
330 | sleep(5); | |
331 | &$finish_workers($self); | |
332 | last if $self->{terminate}; | |
333 | } | |
bdb5acce | 334 | |
b2132054 DM |
335 | } else { |
336 | $self->run(); | |
337 | } | |
338 | }; | |
390802ab DM |
339 | my $err = $@; |
340 | ||
341 | if ($err) { | |
342 | syslog ('err', "ERROR: $err"); | |
b2132054 | 343 | |
88260370 | 344 | &$terminate_server($self); |
b2132054 | 345 | |
390802ab DM |
346 | if (my $wait_time = $self->{restart_on_error}) { |
347 | $self->restart_daemon($wait_time); | |
348 | } else { | |
349 | $self->exit_daemon(-1); | |
350 | } | |
351 | } | |
352 | ||
b2132054 DM |
353 | if ($self->{got_hup_signal}) { |
354 | $self->restart_daemon(); | |
355 | } else { | |
356 | $self->exit_daemon(0); | |
357 | } | |
390802ab DM |
358 | }; |
359 | ||
360 | sub new { | |
361 | my ($this, $name, $cmdline, %params) = @_; | |
362 | ||
1ea9e6df | 363 | $name = 'daemon' if !$name; # should not happen |
1a6bc2f3 DM |
364 | |
365 | initlog($name); | |
a8ba2293 | 366 | |
1ea9e6df | 367 | my $self; |
a8ba2293 | 368 | |
1ea9e6df | 369 | eval { |
390802ab | 370 | |
1ea9e6df DM |
371 | my $restart = $ENV{RESTART_PVE_DAEMON}; |
372 | delete $ENV{RESTART_PVE_DAEMON}; | |
390802ab | 373 | |
1ea9e6df DM |
374 | my $lockfd = $ENV{PVE_DAEMON_LOCK_FD}; |
375 | delete $ENV{PVE_DAEMON_LOCK_FD}; | |
390802ab | 376 | |
7db2b940 | 377 | if (defined($lockfd)) { |
6105a115 DM |
378 | die "unable to parse lock fd '$lockfd'\n" |
379 | if $lockfd !~ m/^(\d+)$/; | |
7db2b940 DM |
380 | $lockfd = $1; # untaint |
381 | } | |
382 | ||
1ea9e6df | 383 | die "please run as root\n" if !$restart && ($> != 0); |
390802ab | 384 | |
1ea9e6df DM |
385 | die "can't create more that one PVE::Daemon" if $daemon_initialized; |
386 | $daemon_initialized = 1; | |
390802ab | 387 | |
1ea9e6df | 388 | PVE::INotify::inotify_init(); |
390802ab | 389 | |
1ea9e6df DM |
390 | my $class = ref($this) || $this; |
391 | ||
392 | $self = bless { | |
393 | name => $name, | |
394 | run_dir => '/var/run', | |
395 | env_restart_pve_daemon => $restart, | |
396 | env_pve_lock_fd => $lockfd, | |
397 | workers => {}, | |
d7950851 | 398 | old_workers => {}, |
1ea9e6df DM |
399 | }, $class; |
400 | ||
401 | foreach my $opt (keys %params) { | |
402 | my $value = $params{$opt}; | |
403 | if ($opt eq 'restart_on_error') { | |
404 | $self->{$opt} = $value; | |
405 | } elsif ($opt eq 'stop_wait_time') { | |
406 | $self->{$opt} = $value; | |
407 | } elsif ($opt eq 'run_dir') { | |
408 | $self->{$opt} = $value; | |
409 | } elsif ($opt eq 'max_workers') { | |
410 | $self->{$opt} = $value; | |
d7950851 DM |
411 | } elsif ($opt eq 'leave_children_open_on_reload') { |
412 | $self->{$opt} = $value; | |
1ea9e6df DM |
413 | } else { |
414 | die "unknown daemon option '$opt'\n"; | |
415 | } | |
390802ab | 416 | } |
d7950851 DM |
417 | |
418 | if ($restart && $self->{max_workers}) { | |
419 | if (my $wpids = $ENV{PVE_DAEMON_WORKER_PIDS}) { | |
420 | foreach my $pid (split(':', $wpids)) { | |
421 | if ($pid =~ m/^(\d+)$/) { | |
422 | $self->{old_workers}->{$1} = 1; | |
423 | } | |
424 | } | |
425 | } | |
426 | } | |
390802ab | 427 | |
1ea9e6df | 428 | $self->{pidfile} = "$self->{run_dir}/${name}.pid"; |
bdb5acce | 429 | |
1ea9e6df | 430 | $self->{nodename} = PVE::INotify::nodename(); |
bdb5acce | 431 | |
1ea9e6df | 432 | $self->{cmdline} = []; |
bdb5acce | 433 | |
1ea9e6df DM |
434 | foreach my $el (@$cmdline) { |
435 | $el =~ m/^(.*)$/; # untaint | |
436 | push @{$self->{cmdline}}, $1; | |
437 | } | |
bdb5acce | 438 | |
1ea9e6df DM |
439 | $0 = $name; |
440 | }; | |
441 | if (my $err = $@) { | |
442 | &$log_err($err); | |
443 | exit(-1); | |
444 | } | |
bdb5acce | 445 | |
390802ab DM |
446 | return $self; |
447 | } | |
448 | ||
449 | sub exit_daemon { | |
450 | my ($self, $status) = @_; | |
451 | ||
452 | syslog("info", "server stopped"); | |
453 | ||
454 | &$server_cleanup($self); | |
455 | ||
456 | exit($status); | |
457 | } | |
458 | ||
459 | sub restart_daemon { | |
460 | my ($self, $waittime) = @_; | |
461 | ||
462 | syslog('info', "server shutdown (restart)"); | |
463 | ||
464 | $ENV{RESTART_PVE_DAEMON} = 1; | |
465 | ||
d7950851 DM |
466 | if ($self->{max_workers}) { |
467 | my @workers = keys %{$self->{workers}}; | |
468 | push @workers, keys %{$self->{old_workers}}; | |
469 | $ENV{PVE_DAEMON_WORKER_PIDS} = join(':', @workers); | |
470 | } | |
471 | ||
390802ab DM |
472 | sleep($waittime) if $waittime; # avoid high server load due to restarts |
473 | ||
474 | PVE::INotify::inotify_close(); | |
475 | ||
476 | exec (@{$self->{cmdline}}); | |
477 | ||
478 | exit (-1); # never reached? | |
479 | } | |
480 | ||
481 | # please overwrite in subclass | |
482 | # this is called at startup - before forking | |
483 | sub init { | |
484 | my ($self) = @_; | |
485 | ||
486 | } | |
487 | ||
488 | # please overwrite in subclass | |
489 | sub shutdown { | |
490 | my ($self) = @_; | |
491 | ||
492 | syslog('info' , "server closing"); | |
493 | ||
b2132054 DM |
494 | if (!$self->{max_workers}) { |
495 | # wait for children | |
496 | 1 while (waitpid(-1, POSIX::WNOHANG()) > 0); | |
497 | } | |
390802ab DM |
498 | } |
499 | ||
bdb5acce DM |
500 | # please define in subclass |
501 | #sub hup { | |
502 | # my ($self) = @_; | |
503 | # | |
504 | # syslog('info' , "received signal HUP (restart)"); | |
505 | #} | |
390802ab DM |
506 | |
507 | # please overwrite in subclass | |
508 | sub run { | |
509 | my ($self) = @_; | |
510 | ||
511 | for (;;) { # forever | |
512 | syslog('info' , "server is running"); | |
513 | sleep(5); | |
514 | } | |
515 | } | |
516 | ||
517 | sub start { | |
518 | my ($self, $debug) = @_; | |
519 | ||
1a6bc2f3 DM |
520 | eval { &$server_run($self, $debug); }; |
521 | if (my $err = $@) { | |
c5611195 DM |
522 | &$log_err("start failed - $err"); |
523 | exit(-1); | |
1a6bc2f3 | 524 | } |
390802ab DM |
525 | } |
526 | ||
bdb5acce DM |
527 | my $read_pid = sub { |
528 | my ($self) = @_; | |
529 | ||
530 | my $pid_str = PVE::Tools::file_read_firstline($self->{pidfile}); | |
531 | ||
532 | return 0 if !$pid_str; | |
533 | ||
534 | return 0 if $pid_str !~ m/^(\d+)$/; # untaint | |
535 | ||
536 | my $pid = int($1); | |
537 | ||
538 | return $pid; | |
539 | }; | |
540 | ||
390802ab DM |
541 | sub running { |
542 | my ($self) = @_; | |
543 | ||
bdb5acce | 544 | my $pid = &$read_pid($self); |
390802ab DM |
545 | |
546 | if ($pid) { | |
547 | my $res = PVE::ProcFSTools::check_process_running($pid) ? 1 : 0; | |
548 | return wantarray ? ($res, $pid) : $res; | |
549 | } | |
550 | ||
551 | return wantarray ? (0, 0) : 0; | |
552 | } | |
553 | ||
554 | sub stop { | |
555 | my ($self) = @_; | |
556 | ||
bdb5acce DM |
557 | my $pid = &$read_pid($self); |
558 | ||
390802ab DM |
559 | return if !$pid; |
560 | ||
561 | if (PVE::ProcFSTools::check_process_running($pid)) { | |
562 | kill(15, $pid); # send TERM signal | |
563 | # give some time | |
564 | my $wait_time = $self->{stop_wait_time} || 5; | |
565 | my $running = 1; | |
566 | for (my $i = 0; $i < $wait_time; $i++) { | |
567 | $running = PVE::ProcFSTools::check_process_running($pid); | |
568 | last if !$running; | |
569 | sleep (1); | |
570 | } | |
571 | ||
572 | syslog('err', "server still running - send KILL") if $running; | |
573 | ||
574 | # to be sure | |
575 | kill(9, $pid); | |
576 | waitpid($pid, 0); | |
577 | } | |
578 | ||
579 | if (-f $self->{pidfile}) { | |
1a6bc2f3 DM |
580 | eval { |
581 | # try to get the lock | |
582 | &$lockpidfile($self); | |
583 | &$server_cleanup($self); | |
584 | }; | |
585 | if (my $err = $@) { | |
c5611195 | 586 | &$log_err("cleanup failed - $err"); |
1a6bc2f3 | 587 | } |
390802ab DM |
588 | } |
589 | } | |
590 | ||
591 | sub register_start_command { | |
da1a7f58 DM |
592 | my ($self, $description) = @_; |
593 | ||
594 | my $class = ref($self); | |
390802ab DM |
595 | |
596 | $class->register_method({ | |
597 | name => 'start', | |
598 | path => 'start', | |
599 | method => 'POST', | |
600 | description => $description || "Start the daemon.", | |
601 | parameters => { | |
602 | additionalProperties => 0, | |
603 | properties => { | |
604 | debug => { | |
605 | description => "Debug mode - stay in foreground", | |
606 | type => "boolean", | |
607 | optional => 1, | |
608 | default => 0, | |
609 | }, | |
610 | }, | |
611 | }, | |
612 | returns => { type => 'null' }, | |
613 | ||
614 | code => sub { | |
615 | my ($param) = @_; | |
616 | ||
617 | $self->start($param->{debug}); | |
618 | ||
619 | return undef; | |
620 | }}); | |
621 | } | |
622 | ||
bdb5acce DM |
623 | my $reload_daemon = sub { |
624 | my ($self, $use_hup) = @_; | |
625 | ||
a8ba2293 | 626 | if ($self->{env_restart_pve_daemon}) { |
bdb5acce DM |
627 | $self->start(); |
628 | } else { | |
629 | my ($running, $pid) = $self->running(); | |
630 | if (!$running) { | |
631 | $self->start(); | |
632 | } else { | |
633 | if ($use_hup) { | |
b2132054 DM |
634 | syslog('info', "send HUP to $pid"); |
635 | kill 1, $pid; | |
bdb5acce DM |
636 | } else { |
637 | $self->stop(); | |
638 | $self->start(); | |
639 | } | |
640 | } | |
641 | } | |
642 | }; | |
643 | ||
390802ab | 644 | sub register_restart_command { |
da1a7f58 DM |
645 | my ($self, $use_hup, $description) = @_; |
646 | ||
647 | my $class = ref($self); | |
390802ab DM |
648 | |
649 | $class->register_method({ | |
650 | name => 'restart', | |
651 | path => 'restart', | |
652 | method => 'POST', | |
653 | description => $description || "Restart the daemon (or start if not running).", | |
654 | parameters => { | |
655 | additionalProperties => 0, | |
656 | properties => {}, | |
657 | }, | |
658 | returns => { type => 'null' }, | |
659 | ||
660 | code => sub { | |
661 | my ($param) = @_; | |
662 | ||
bdb5acce DM |
663 | &$reload_daemon($self, $use_hup); |
664 | ||
665 | return undef; | |
666 | }}); | |
667 | } | |
668 | ||
669 | sub register_reload_command { | |
da1a7f58 DM |
670 | my ($self, $description) = @_; |
671 | ||
672 | my $class = ref($self); | |
bdb5acce DM |
673 | |
674 | $class->register_method({ | |
675 | name => 'reload', | |
676 | path => 'reload', | |
677 | method => 'POST', | |
678 | description => $description || "Reload daemon configuration (or start if not running).", | |
679 | parameters => { | |
680 | additionalProperties => 0, | |
681 | properties => {}, | |
682 | }, | |
683 | returns => { type => 'null' }, | |
684 | ||
685 | code => sub { | |
686 | my ($param) = @_; | |
687 | ||
688 | &$reload_daemon($self, 1); | |
390802ab DM |
689 | |
690 | return undef; | |
691 | }}); | |
692 | } | |
693 | ||
694 | sub register_stop_command { | |
da1a7f58 DM |
695 | my ($self, $description) = @_; |
696 | ||
697 | my $class = ref($self); | |
390802ab DM |
698 | |
699 | $class->register_method({ | |
700 | name => 'stop', | |
701 | path => 'stop', | |
702 | method => 'POST', | |
703 | description => $description || "Stop the daemon.", | |
704 | parameters => { | |
705 | additionalProperties => 0, | |
706 | properties => {}, | |
707 | }, | |
708 | returns => { type => 'null' }, | |
709 | ||
710 | code => sub { | |
711 | my ($param) = @_; | |
712 | ||
713 | $self->stop(); | |
714 | ||
715 | return undef; | |
716 | }}); | |
717 | } | |
718 | ||
719 | sub register_status_command { | |
da1a7f58 DM |
720 | my ($self, $description) = @_; |
721 | ||
722 | my $class = ref($self); | |
390802ab DM |
723 | |
724 | $class->register_method({ | |
725 | name => 'status', | |
726 | path => 'status', | |
727 | method => 'GET', | |
728 | description => "Get daemon status.", | |
729 | parameters => { | |
730 | additionalProperties => 0, | |
731 | properties => {}, | |
732 | }, | |
733 | returns => { | |
734 | type => 'string', | |
735 | enum => ['stopped', 'running'], | |
736 | }, | |
737 | code => sub { | |
738 | my ($param) = @_; | |
739 | ||
740 | return $self->running() ? 'running' : 'stopped'; | |
741 | }}); | |
742 | } | |
743 | ||
744 | 1; | |
745 |