2 * Main loop for the CUPS scheduler.
4 * Copyright 2007-2018 by Apple Inc.
5 * Copyright 1997-2007 by Easy Software Products, all rights reserved.
7 * Licensed under Apache License v2.0. See the file "LICENSE" for more
12 * Include necessary headers...
17 #include <sys/resource.h>
19 # include <os/object.h>
20 typedef struct os_transaction_s
*os_transaction_t
;
21 extern os_transaction_t
os_transaction_create(const char *description
);
23 # include <pthread/qos.h>
24 #endif /* __APPLE__ */
27 #elif defined(HAVE_SYSTEMD_SD_JOURNAL_H)
28 # define SD_JOURNAL_SUPPRESS_LOCATION
29 # include <systemd/sd-journal.h>
30 #endif /* HAVE_ASL_H */
36 #endif /* HAVE_LAUNCH_H */
39 # include <systemd/sd-daemon.h>
40 #endif /* HAVE_SYSTEMD */
43 # define CUPS_KEEPALIVE CUPS_CACHEDIR "/org.cups.cupsd"
44 /* Name of the KeepAlive file */
45 #endif /* HAVE_ONDEMAND */
47 #if defined(HAVE_MALLOC_H) && defined(HAVE_MALLINFO)
49 #endif /* HAVE_MALLOC_H && HAVE_MALLINFO */
53 #endif /* HAVE_NOTIFY_H */
56 # include <dbus/dbus.h>
57 #endif /* HAVE_DBUS */
59 #ifdef HAVE_SYS_PARAM_H
60 # include <sys/param.h>
61 #endif /* HAVE_SYS_PARAM_H */
68 static void parent_handler(int sig
);
69 static void process_children(void);
70 static void sigchld_handler(int sig
);
71 static void sighup_handler(int sig
);
72 static void sigterm_handler(int sig
);
73 static long select_timeout(int fds
);
74 static void service_checkin(void);
75 static void service_checkout(int shutdown
);
76 static void usage(int status
) _CUPS_NORETURN
;
83 static int parent_signal
= 0;
84 /* Set to signal number from child */
85 static int holdcount
= 0; /* Number of times "hold" was called */
86 #if defined(HAVE_SIGACTION) && !defined(HAVE_SIGSET)
87 static sigset_t holdmask
; /* Old POSIX signal mask */
88 #endif /* HAVE_SIGACTION && !HAVE_SIGSET */
89 static int dead_children
= 0;
91 static int stop_scheduler
= 0;
92 /* Should the scheduler stop? */
93 static time_t local_timeout
= 0;
94 /* Next local printer timeout */
96 static os_transaction_t launchd_transaction
= NULL
;
97 /* Transaction for launchd */
98 #endif /* __APPLE__ */
102 * 'main()' - Main entry for the CUPS scheduler.
105 int /* O - Exit status */
106 main(int argc
, /* I - Number of command-line args */
107 char *argv
[]) /* I - Command-line arguments */
109 int i
; /* Looping var */
110 char *opt
; /* Option character */
111 int close_all
= 1, /* Close all file descriptors? */
112 disconnect
= 1, /* Disconnect from controlling terminal? */
113 fg
= 0, /* Run in foreground? */
115 /* Running as child process? */
117 /* Print the sandbox profile to stdout? */
118 int fds
; /* Number of ready descriptors */
119 cupsd_client_t
*con
; /* Current client */
120 cupsd_job_t
*job
; /* Current job */
121 cupsd_listener_t
*lis
; /* Current listener */
122 time_t current_time
, /* Current time */
123 activity
, /* Client activity timer */
124 senddoc_time
, /* Send-Document time */
125 expire_time
, /* Subscription expire time */
126 report_time
, /* Malloc/client/job report time */
127 event_time
; /* Last event notification time */
128 long timeout
; /* Timeout for cupsdDoSelect() */
129 struct rlimit limit
; /* Runtime limit */
130 #if defined(HAVE_SIGACTION) && !defined(HAVE_SIGSET)
131 struct sigaction action
; /* Actions for POSIX signals */
132 #endif /* HAVE_SIGACTION && !HAVE_SIGSET */
134 int use_sysman
= 1; /* Use system management functions? */
136 time_t netif_time
= 0; /* Time since last network update */
137 #endif /* __APPLE__ */
138 #if defined(HAVE_ONDEMAND)
139 int service_idle_exit
;
140 /* Idle exit on select timeout? */
141 #endif /* HAVE_ONDEMAND */
146 * Check for setuid invocation, which we do not support!
149 if (getuid() != geteuid())
151 fputs("cupsd: Cannot run as a setuid program.\n", stderr
);
154 #endif /* HAVE_GETEUID */
157 * Check for command-line arguments...
162 for (i
= 1; i
< argc
; i
++)
163 if (argv
[i
][0] == '-')
164 for (opt
= argv
[i
] + 1; *opt
!= '\0'; opt
++)
167 case 'C' : /* Run as child with config file */
172 case 'c' : /* Configuration file */
176 _cupsLangPuts(stderr
, _("cupsd: Expected config filename "
177 "after \"-c\" option."));
181 if (argv
[i
][0] == '/')
184 * Absolute directory...
187 cupsdSetString(&ConfigurationFile
, argv
[i
]);
192 * Relative directory...
195 char *current
; /* Current directory */
198 * Allocate a buffer for the current working directory to
199 * reduce run-time stack usage; this approximates the
200 * behavior of some implementations of getcwd() when they
201 * are passed a NULL pointer.
204 if ((current
= malloc(1024)) == NULL
)
206 _cupsLangPuts(stderr
,
207 _("cupsd: Unable to get current directory."));
211 if (!getcwd(current
, 1024))
213 _cupsLangPuts(stderr
,
214 _("cupsd: Unable to get current directory."));
219 cupsdSetStringf(&ConfigurationFile
, "%s/%s", current
, argv
[i
]);
224 case 'f' : /* Run in foreground... */
230 case 'F' : /* Run in foreground, but disconnect from terminal... */
235 case 'h' : /* Show usage/help */
239 case 'l' : /* Started by launchd/systemd/upstart... */
246 _cupsLangPuts(stderr
, _("cupsd: On-demand support not compiled "
247 "in, running in normal mode."));
251 #endif /* HAVE_ONDEMAND */
254 case 'p' : /* Stop immediately for profiling */
255 fputs("cupsd: -p (startup profiling) is for internal testing "
256 "use only!\n", stderr
);
263 case 'P' : /* Disable security profiles */
264 fputs("cupsd: -P (disable sandboxing) is for internal testing use only.\n", stderr
);
268 case 's' : /* Set cups-files.conf location */
272 _cupsLangPuts(stderr
, _("cupsd: Expected cups-files.conf "
273 "filename after \"-s\" option."));
277 if (argv
[i
][0] != '/')
280 * Relative filename not allowed...
283 _cupsLangPuts(stderr
, _("cupsd: Relative cups-files.conf "
284 "filename not allowed."));
288 cupsdSetString(&CupsFilesFile
, argv
[i
]);
292 case 'S' : /* Disable system management functions */
293 fputs("cupsd: -S (disable system management) for internal "
294 "testing use only!\n", stderr
);
297 #endif /* __APPLE__ */
299 case 't' : /* Test the cupsd.conf file... */
306 case 'T' : /* Print security profile */
313 default : /* Unknown option */
314 _cupsLangPrintf(stderr
, _("cupsd: Unknown option \"%c\" - "
321 _cupsLangPrintf(stderr
, _("cupsd: Unknown argument \"%s\" - aborting."),
326 if (!ConfigurationFile
)
327 cupsdSetString(&ConfigurationFile
, CUPS_SERVERROOT
"/cupsd.conf");
331 char *filename
, /* Copy of cupsd.conf filename */
332 *slash
; /* Final slash in cupsd.conf filename */
333 size_t len
; /* Size of buffer */
335 len
= strlen(ConfigurationFile
) + 15;
336 if ((filename
= malloc(len
)) == NULL
)
338 _cupsLangPrintf(stderr
,
339 _("cupsd: Unable to get path to "
340 "cups-files.conf file."));
344 strlcpy(filename
, ConfigurationFile
, len
);
345 if ((slash
= strrchr(filename
, '/')) == NULL
)
347 _cupsLangPrintf(stderr
,
348 _("cupsd: Unable to get path to "
349 "cups-files.conf file."));
353 strlcpy(slash
, "/cups-files.conf", len
- (size_t)(slash
- filename
));
354 cupsdSetString(&CupsFilesFile
, filename
);
361 * Make sure we aren't tying up any filesystems...
367 * Disconnect from the controlling terminal...
376 * Close all open files...
379 getrlimit(RLIMIT_NOFILE
, &limit
);
381 for (i
= 0; i
< (int)limit
.rlim_cur
&& i
< 1024; i
++)
385 * Redirect stdin/out/err to /dev/null...
388 if ((i
= open("/dev/null", O_RDONLY
)) != 0)
394 if ((i
= open("/dev/null", O_WRONLY
)) != 1)
400 if ((i
= open("/dev/null", O_WRONLY
)) != 2)
407 LogStderr
= cupsFileStderr();
410 * Run in the background as needed...
416 * Setup signal handlers for the parent...
419 #ifdef HAVE_SIGSET /* Use System V signals over POSIX to avoid bugs */
420 sigset(SIGUSR1
, parent_handler
);
421 sigset(SIGCHLD
, parent_handler
);
423 sigset(SIGHUP
, SIG_IGN
);
424 #elif defined(HAVE_SIGACTION)
425 memset(&action
, 0, sizeof(action
));
426 sigemptyset(&action
.sa_mask
);
427 sigaddset(&action
.sa_mask
, SIGUSR1
);
428 action
.sa_handler
= parent_handler
;
429 sigaction(SIGUSR1
, &action
, NULL
);
430 sigaction(SIGCHLD
, &action
, NULL
);
432 sigemptyset(&action
.sa_mask
);
433 action
.sa_handler
= SIG_IGN
;
434 sigaction(SIGHUP
, &action
, NULL
);
436 signal(SIGUSR1
, parent_handler
);
437 signal(SIGCLD
, parent_handler
);
439 signal(SIGHUP
, SIG_IGN
);
440 #endif /* HAVE_SIGSET */
445 * OK, wait for the child to startup and send us SIGUSR1 or to crash
446 * and the OS send us SIGCHLD... We also need to ignore SIGHUP which
447 * might be sent by the init script to restart the scheduler...
450 for (; parent_signal
== 0;)
453 if (parent_signal
== SIGUSR1
)
461 else if (WIFEXITED(i
))
463 fprintf(stderr
, "cupsd: Child exited with status %d\n",
469 fprintf(stderr
, "cupsd: Child exited on signal %d\n", WTERMSIG(i
));
474 #if defined(__OpenBSD__) && OpenBSD < 201211
476 * Call _thread_sys_closefrom() so the child process doesn't reset the
477 * parent's file descriptors to be blocking. This is a workaround for a
478 * limitation of userland libpthread on older versions of OpenBSD.
481 _thread_sys_closefrom(0);
482 #endif /* __OpenBSD__ && OpenBSD < 201211 */
485 * Since many system libraries create fork-unsafe data on execution of a
486 * program, we need to re-execute the background cupsd with the "-C" and "-s"
487 * options to avoid problems. Unfortunately, we also have to assume that
488 * argv[0] contains the name of the cupsd executable - there is no portable
489 * way to get the real pathname...
492 execlp(argv
[0], argv
[0], "-C", ConfigurationFile
, "-s", CupsFilesFile
, (char *)0);
497 * Let the system know we are busy while we bring up cupsd...
500 cupsdSetBusyState(1);
503 * Set the timezone info...
509 setlocale(LC_TIME
, "");
512 #ifdef HAVE_DBUS_THREADS_INIT
514 * Enable threading support for D-BUS...
517 dbus_threads_init_default();
518 #endif /* HAVE_DBUS_THREADS_INIT */
521 * Set the maximum number of files...
524 getrlimit(RLIMIT_NOFILE
, &limit
);
526 #if !defined(HAVE_POLL) && !defined(HAVE_EPOLL) && !defined(HAVE_KQUEUE)
527 if (limit
.rlim_max
> FD_SETSIZE
)
530 #endif /* !HAVE_POLL && !HAVE_EPOLL && !HAVE_KQUEUE */
532 if (limit
.rlim_max
== RLIM_INFINITY
)
535 #endif /* RLIM_INFINITY */
536 MaxFDs
= limit
.rlim_max
;
538 limit
.rlim_cur
= (rlim_t
)MaxFDs
;
540 setrlimit(RLIMIT_NOFILE
, &limit
);
545 * Read configuration...
548 if (!cupsdReadConfiguration())
550 else if (TestConfigFile
)
552 printf("\"%s\" is OK.\n", CupsFilesFile
);
553 printf("\"%s\" is OK.\n", ConfigurationFile
);
556 else if (print_profile
)
558 cups_file_t
*fp
; /* File pointer */
559 const char *profile
= cupsdCreateProfile(42, 0);
561 char line
[1024]; /* Line from file */
564 if ((fp
= cupsFileOpen(profile
, "r")) == NULL
)
566 printf("Unable to open profile file \"%s\": %s\n", profile
? profile
: "(null)", strerror(errno
));
570 while (cupsFileGets(fp
, line
, sizeof(line
)))
579 * Clean out old temp files and printer cache data.
582 if (!strncmp(TempDir
, RequestRoot
, strlen(RequestRoot
)))
583 cupsdCleanFiles(TempDir
, NULL
);
585 cupsdCleanFiles(CacheDir
, "*.ipp");
588 * If we were started on demand by launchd or systemd get the listen sockets
589 * file descriptors...
596 * Startup the server...
604 * Catch hangup and child signals and ignore broken pipes...
607 #ifdef HAVE_SIGSET /* Use System V signals over POSIX to avoid bugs */
608 sigset(SIGCHLD
, sigchld_handler
);
609 sigset(SIGHUP
, sighup_handler
);
610 sigset(SIGPIPE
, SIG_IGN
);
611 sigset(SIGTERM
, sigterm_handler
);
612 #elif defined(HAVE_SIGACTION)
613 memset(&action
, 0, sizeof(action
));
615 sigemptyset(&action
.sa_mask
);
616 sigaddset(&action
.sa_mask
, SIGTERM
);
617 sigaddset(&action
.sa_mask
, SIGCHLD
);
618 action
.sa_handler
= sigchld_handler
;
619 sigaction(SIGCHLD
, &action
, NULL
);
621 sigemptyset(&action
.sa_mask
);
622 sigaddset(&action
.sa_mask
, SIGHUP
);
623 action
.sa_handler
= sighup_handler
;
624 sigaction(SIGHUP
, &action
, NULL
);
626 sigemptyset(&action
.sa_mask
);
627 action
.sa_handler
= SIG_IGN
;
628 sigaction(SIGPIPE
, &action
, NULL
);
630 sigemptyset(&action
.sa_mask
);
631 sigaddset(&action
.sa_mask
, SIGTERM
);
632 sigaddset(&action
.sa_mask
, SIGCHLD
);
633 action
.sa_handler
= sigterm_handler
;
634 sigaction(SIGTERM
, &action
, NULL
);
636 signal(SIGCLD
, sigchld_handler
); /* No, SIGCLD isn't a typo... */
637 signal(SIGHUP
, sighup_handler
);
638 signal(SIGPIPE
, SIG_IGN
);
639 signal(SIGTERM
, sigterm_handler
);
640 #endif /* HAVE_SIGSET */
643 * Initialize authentication certificates...
649 * If we are running in the background, signal the parent process that
650 * we are up and running...
653 if (!fg
|| run_as_child
)
656 * Send a signal to the parent process, but only if the parent is
657 * not PID 1 (init). This avoids accidentally shutting down the
658 * system on OpenBSD if you CTRL-C the server before it is up...
661 i
= getppid(); /* Save parent PID to avoid race condition */
669 * Start power management framework...
673 cupsdStartSystemMonitor();
674 #endif /* __APPLE__ */
677 * Send server-started event...
682 cupsdAddEvent(CUPSD_EVENT_SERVER_STARTED
, NULL
, NULL
, "Scheduler started on demand.");
684 #endif /* HAVE_ONDEMAND */
686 cupsdAddEvent(CUPSD_EVENT_SERVER_STARTED
, NULL
, NULL
, "Scheduler started in foreground.");
688 cupsdAddEvent(CUPSD_EVENT_SERVER_STARTED
, NULL
, NULL
, "Scheduler started in background.");
690 cupsdSetBusyState(0);
693 * Start any pending print jobs...
702 current_time
= time(NULL
);
703 event_time
= current_time
;
704 expire_time
= current_time
;
708 senddoc_time
= current_time
;
710 while (!stop_scheduler
)
713 * Check if there are dead children to handle...
720 * Check if we need to load the server configuration file...
726 * Close any idle clients...
729 if (cupsArrayCount(Clients
) > 0)
731 for (con
= (cupsd_client_t
*)cupsArrayFirst(Clients
);
733 con
= (cupsd_client_t
*)cupsArrayNext(Clients
))
734 if (httpGetState(con
->http
) == HTTP_WAITING
)
735 cupsdCloseClient(con
);
737 con
->http
->keep_alive
= HTTP_KEEPALIVE_OFF
;
739 cupsdPauseListening();
743 * Restart if all clients are closed and all jobs finished, or
744 * if the reload timeout has elapsed...
747 if ((cupsArrayCount(Clients
) == 0 &&
748 (cupsArrayCount(PrintingJobs
) == 0 || NeedReload
!= RELOAD_ALL
)) ||
749 (time(NULL
) - ReloadTime
) >= ReloadTimeout
)
752 * Shutdown the server...
758 #endif /* HAVE_ONDEMAND */
765 * Read configuration...
768 if (!cupsdReadConfiguration())
770 #ifdef HAVE_SYSTEMD_SD_JOURNAL_H
771 sd_journal_print(LOG_ERR
, "Unable to read configuration file \"%s\" - exiting.", ConfigurationFile
);
773 syslog(LOG_LPR
, "Unable to read configuration file \'%s\' - exiting.", ConfigurationFile
);
774 #endif /* HAVE_SYSTEMD_SD_JOURNAL_H */
780 * Startup the server...
788 * Send a server-restarted event...
791 cupsdAddEvent(CUPSD_EVENT_SERVER_RESTARTED
, NULL
, NULL
,
792 "Scheduler restarted.");
797 * Check for available input or ready output. If cupsdDoSelect()
798 * returns 0 or -1, something bad happened and we should exit
801 * Note that we at least have one listening socket open at all
805 if ((timeout
= select_timeout(fds
)) > 1 && LastEvent
)
810 * If no other work is scheduled and we're being controlled by launchd,
811 * systemd, etc. then timeout after 'IdleExitTimeout' seconds of
815 if (timeout
== 86400 && OnDemand
&& IdleExitTimeout
&&
818 # endif /* HAVE_SYSTEMD */
819 !cupsArrayCount(ActiveJobs
))
821 cupsd_printer_t
*p
= NULL
; /* Current printer */
823 if (Browsing
&& BrowseLocalProtocols
)
825 for (p
= (cupsd_printer_t
*)cupsArrayFirst(Printers
); p
; p
= (cupsd_printer_t
*)cupsArrayNext(Printers
))
832 timeout
= IdleExitTimeout
;
833 service_idle_exit
= 1;
837 service_idle_exit
= 0;
838 #endif /* HAVE_ONDEMAND */
840 if ((fds
= cupsdDoSelect(timeout
)) < 0)
843 * Got an error from select!
846 #if defined(HAVE_DNSSD) || defined(HAVE_AVAHI)
847 cupsd_printer_t
*p
; /* Current printer */
848 #endif /* HAVE_DNSSD || HAVE_AVAHI */
850 if (errno
== EINTR
) /* Just interrupted by a signal */
854 * Log all sorts of debug info to help track down the problem.
857 cupsdLogMessage(CUPSD_LOG_EMERG
, "cupsdDoSelect() failed - %s!",
860 for (i
= 0, con
= (cupsd_client_t
*)cupsArrayFirst(Clients
);
862 i
++, con
= (cupsd_client_t
*)cupsArrayNext(Clients
))
863 cupsdLogMessage(CUPSD_LOG_EMERG
,
864 "Clients[%d] = %d, file = %d, state = %d",
865 i
, con
->number
, con
->file
, httpGetState(con
->http
));
867 for (i
= 0, lis
= (cupsd_listener_t
*)cupsArrayFirst(Listeners
);
869 i
++, lis
= (cupsd_listener_t
*)cupsArrayNext(Listeners
))
870 cupsdLogMessage(CUPSD_LOG_EMERG
, "Listeners[%d] = %d", i
, lis
->fd
);
872 cupsdLogMessage(CUPSD_LOG_EMERG
, "CGIPipes[0] = %d", CGIPipes
[0]);
875 cupsdLogMessage(CUPSD_LOG_EMERG
, "SysEventPipes[0] = %d",
877 #endif /* __APPLE__ */
879 for (job
= (cupsd_job_t
*)cupsArrayFirst(ActiveJobs
);
881 job
= (cupsd_job_t
*)cupsArrayNext(ActiveJobs
))
882 cupsdLogMessage(CUPSD_LOG_EMERG
, "Jobs[%d] = %d < [%d %d] > [%d %d]",
884 job
->status_buffer
? job
->status_buffer
->fd
: -1,
885 job
->print_pipes
[0], job
->print_pipes
[1],
886 job
->back_pipes
[0], job
->back_pipes
[1]);
888 #if defined(HAVE_DNSSD) || defined(HAVE_AVAHI)
889 for (p
= (cupsd_printer_t
*)cupsArrayFirst(Printers
);
891 p
= (cupsd_printer_t
*)cupsArrayNext(Printers
))
892 cupsdLogMessage(CUPSD_LOG_EMERG
, "printer[%s] reg_name=\"%s\"", p
->name
,
893 p
->reg_name
? p
->reg_name
: "(null)");
894 #endif /* HAVE_DNSSD || HAVE_AVAHI */
899 current_time
= time(NULL
);
902 * Write dirty config/state files...
905 if (DirtyCleanTime
&& current_time
>= DirtyCleanTime
)
910 * If we are going to sleep and still have pending jobs, stop them after
911 * a period of time...
914 if (SleepJobs
> 0 && current_time
>= SleepJobs
&&
915 cupsArrayCount(PrintingJobs
) > 0)
918 cupsdStopAllJobs(CUPSD_JOB_DEFAULT
, 5);
920 #endif /* __APPLE__ */
924 * Update the network interfaces once a minute...
927 if ((current_time
- netif_time
) >= 60)
929 netif_time
= current_time
;
932 #endif /* !__APPLE__ */
936 * If no other work was scheduled and we're being controlled by launchd,
937 * systemd, or upstart then timeout after 'LaunchdTimeout' seconds of
941 if (!fds
&& service_idle_exit
)
943 cupsdLogMessage(CUPSD_LOG_INFO
,
944 "Printer sharing is off and there are no jobs pending, "
945 "will restart on demand.");
949 #endif /* HAVE_ONDEMAND */
952 * Resume listening for new connections as needed...
955 if (ListeningPaused
&& ListeningPaused
<= current_time
&&
956 cupsArrayCount(Clients
) < MaxClients
)
957 cupsdResumeListening();
960 * Expire subscriptions and unload completed jobs as needed...
963 if (current_time
> expire_time
)
965 if (cupsArrayCount(Subscriptions
) > 0)
966 cupsdExpireSubscriptions(NULL
, NULL
);
968 cupsdUnloadCompletedJobs();
970 expire_time
= current_time
;
974 * Delete stale local printers...
977 if (current_time
>= local_timeout
)
979 cupsdDeleteTemporaryPrinters(0);
983 #ifndef HAVE_AUTHORIZATION_H
985 * Update the root certificate once every 5 minutes if we have client
989 if ((current_time
- RootCertTime
) >= RootCertDuration
&& RootCertDuration
&&
990 !RunUser
&& cupsArrayCount(Clients
))
993 * Update the root certificate...
997 cupsdAddCert(0, "root", cupsdDefaultAuthType());
999 #endif /* !HAVE_AUTHORIZATION_H */
1002 * Check for new data on the client sockets...
1005 for (con
= (cupsd_client_t
*)cupsArrayFirst(Clients
);
1007 con
= (cupsd_client_t
*)cupsArrayNext(Clients
))
1010 * Process pending data in the input buffer...
1013 if (httpGetReady(con
->http
))
1015 cupsdReadClient(con
);
1020 * Check the activity and close old clients...
1023 activity
= current_time
- Timeout
;
1024 if (httpGetActivity(con
->http
) < activity
&& !con
->pipe_pid
)
1026 cupsdLogMessage(CUPSD_LOG_DEBUG
, "Closing client %d after %d seconds of inactivity.", con
->number
, Timeout
);
1028 cupsdCloseClient(con
);
1034 * Update any pending multi-file documents...
1037 if ((current_time
- senddoc_time
) >= 10)
1040 senddoc_time
= current_time
;
1044 * Clean job history...
1047 if (JobHistoryUpdate
&& current_time
>= JobHistoryUpdate
)
1051 * Log statistics at most once a minute when in debug mode...
1054 if ((current_time
- report_time
) >= 60 && LogLevel
>= CUPSD_LOG_DEBUG
)
1056 size_t string_count
, /* String count */
1057 alloc_bytes
, /* Allocated string bytes */
1058 total_bytes
; /* Total string bytes */
1059 #ifdef HAVE_MALLINFO
1060 struct mallinfo mem
; /* Malloc information */
1064 cupsdLogMessage(CUPSD_LOG_DEBUG
, "Report: malloc-arena=%lu", mem
.arena
);
1065 cupsdLogMessage(CUPSD_LOG_DEBUG
, "Report: malloc-used=%lu",
1066 mem
.usmblks
+ mem
.uordblks
);
1067 cupsdLogMessage(CUPSD_LOG_DEBUG
, "Report: malloc-free=%lu",
1068 mem
.fsmblks
+ mem
.fordblks
);
1069 #endif /* HAVE_MALLINFO */
1071 cupsdLogMessage(CUPSD_LOG_DEBUG
, "Report: clients=%d",
1072 cupsArrayCount(Clients
));
1073 cupsdLogMessage(CUPSD_LOG_DEBUG
, "Report: jobs=%d",
1074 cupsArrayCount(Jobs
));
1075 cupsdLogMessage(CUPSD_LOG_DEBUG
, "Report: jobs-active=%d",
1076 cupsArrayCount(ActiveJobs
));
1077 cupsdLogMessage(CUPSD_LOG_DEBUG
, "Report: printers=%d",
1078 cupsArrayCount(Printers
));
1080 string_count
= _cupsStrStatistics(&alloc_bytes
, &total_bytes
);
1081 cupsdLogMessage(CUPSD_LOG_DEBUG
,
1082 "Report: stringpool-string-count=" CUPS_LLFMT
,
1083 CUPS_LLCAST string_count
);
1084 cupsdLogMessage(CUPSD_LOG_DEBUG
,
1085 "Report: stringpool-alloc-bytes=" CUPS_LLFMT
,
1086 CUPS_LLCAST alloc_bytes
);
1087 cupsdLogMessage(CUPSD_LOG_DEBUG
,
1088 "Report: stringpool-total-bytes=" CUPS_LLFMT
,
1089 CUPS_LLCAST total_bytes
);
1091 report_time
= current_time
;
1095 * Handle OS-specific event notification for any events that have
1096 * accumulated. Don't send these more than once a second...
1099 if (LastEvent
&& (current_time
- event_time
) >= 1)
1101 #ifdef HAVE_NOTIFY_POST
1102 if (LastEvent
& (CUPSD_EVENT_PRINTER_ADDED
|
1103 CUPSD_EVENT_PRINTER_DELETED
|
1104 CUPSD_EVENT_PRINTER_MODIFIED
))
1106 cupsdLogMessage(CUPSD_LOG_DEBUG2
,
1107 "notify_post(\"com.apple.printerListChange\")");
1108 notify_post("com.apple.printerListChange");
1111 if (LastEvent
& CUPSD_EVENT_PRINTER_STATE_CHANGED
)
1113 cupsdLogMessage(CUPSD_LOG_DEBUG2
,
1114 "notify_post(\"com.apple.printerHistoryChange\")");
1115 notify_post("com.apple.printerHistoryChange");
1118 if (LastEvent
& (CUPSD_EVENT_JOB_STATE_CHANGED
|
1119 CUPSD_EVENT_JOB_CONFIG_CHANGED
|
1120 CUPSD_EVENT_JOB_PROGRESS
))
1122 cupsdLogMessage(CUPSD_LOG_DEBUG2
,
1123 "notify_post(\"com.apple.jobChange\")");
1124 notify_post("com.apple.jobChange");
1126 #endif /* HAVE_NOTIFY_POST */
1129 * Reset the accumulated events...
1132 LastEvent
= CUPSD_EVENT_NONE
;
1133 event_time
= current_time
;
1138 * Log a message based on what happened...
1143 cupsdLogMessage(CUPSD_LOG_INFO
, "Scheduler shutting down normally.");
1144 cupsdAddEvent(CUPSD_EVENT_SERVER_STOPPED
, NULL
, NULL
,
1145 "Scheduler shutting down normally.");
1149 cupsdLogMessage(CUPSD_LOG_ERROR
,
1150 "Scheduler shutting down due to program error.");
1151 cupsdAddEvent(CUPSD_EVENT_SERVER_STOPPED
, NULL
, NULL
,
1152 "Scheduler shutting down due to program error.");
1156 * Close all network clients...
1164 * Update the KeepAlive/PID file as needed...
1167 service_checkout(1);
1176 * Delete all temporary printers...
1179 cupsdDeleteTemporaryPrinters(1);
1183 * Stop monitoring system event monitoring...
1187 cupsdStopSystemMonitor();
1188 #endif /* __APPLE__ */
1192 return (!stop_scheduler
);
1197 * 'cupsdAddString()' - Copy and add a string to an array.
1200 int /* O - 1 on success, 0 on failure */
1201 cupsdAddString(cups_array_t
**a
, /* IO - String array */
1202 const char *s
) /* I - String to copy and add */
1205 *a
= cupsArrayNew3((cups_array_func_t
)strcmp
, NULL
,
1206 (cups_ahash_func_t
)NULL
, 0,
1207 (cups_acopy_func_t
)strdup
,
1208 (cups_afree_func_t
)free
);
1210 return (cupsArrayAdd(*a
, (char *)s
));
1215 * 'cupsdCheckProcess()' - Tell the main loop to check for dead children.
1219 cupsdCheckProcess(void)
1222 * Flag that we have dead children...
1230 * 'cupsdClearString()' - Clear a string.
1234 cupsdClearString(char **s
) /* O - String value */
1245 * 'cupsdFreeStrings()' - Free an array of strings.
1249 cupsdFreeStrings(cups_array_t
**a
) /* IO - String array */
1253 cupsArrayDelete(*a
);
1260 * 'cupsdHoldSignals()' - Hold child and termination signals.
1264 cupsdHoldSignals(void)
1266 #if defined(HAVE_SIGACTION) && !defined(HAVE_SIGSET)
1267 sigset_t newmask
; /* New POSIX signal mask */
1268 #endif /* HAVE_SIGACTION && !HAVE_SIGSET */
1278 #elif defined(HAVE_SIGACTION)
1279 sigemptyset(&newmask
);
1280 sigaddset(&newmask
, SIGTERM
);
1281 sigaddset(&newmask
, SIGCHLD
);
1282 sigprocmask(SIG_BLOCK
, &newmask
, &holdmask
);
1283 #endif /* HAVE_SIGSET */
1288 * 'cupsdReleaseSignals()' - Release signals for delivery.
1292 cupsdReleaseSignals(void)
1301 #elif defined(HAVE_SIGACTION)
1302 sigprocmask(SIG_SETMASK
, &holdmask
, NULL
);
1303 #endif /* HAVE_SIGSET */
1308 * 'cupsdSetString()' - Set a string value.
1312 cupsdSetString(char **s
, /* O - New string */
1313 const char *v
) /* I - String value */
1329 * 'cupsdSetStringf()' - Set a formatted string value.
1333 cupsdSetStringf(char **s
, /* O - New string */
1334 const char *f
, /* I - Printf-style format string */
1335 ...) /* I - Additional args as needed */
1337 char v
[65536 + 64]; /* Formatting string value */
1338 va_list ap
; /* Argument pointer */
1339 char *olds
; /* Old string */
1350 vsnprintf(v
, sizeof(v
), f
, ap
);
1364 * 'parent_handler()' - Catch USR1/CHLD signals...
1368 parent_handler(int sig
) /* I - Signal */
1371 * Store the signal we got from the OS and return...
1374 parent_signal
= sig
;
1379 * 'process_children()' - Process all dead children...
1383 process_children(void)
1385 int status
; /* Exit status of child */
1386 int pid
, /* Process ID of child */
1387 job_id
; /* Job ID of child */
1388 cupsd_job_t
*job
; /* Current job */
1389 int i
; /* Looping var */
1390 char name
[1024]; /* Process name */
1391 const char *type
; /* Type of program */
1394 cupsdLogMessage(CUPSD_LOG_DEBUG2
, "process_children()");
1397 * Reset the dead_children flag...
1403 * Collect the exit status of some children...
1407 while ((pid
= waitpid(-1, &status
, WNOHANG
)) > 0)
1408 #elif defined(HAVE_WAIT3)
1409 while ((pid
= wait3(&status
, WNOHANG
, NULL
)) > 0)
1411 if ((pid
= wait(&status
)) > 0)
1412 #endif /* HAVE_WAITPID */
1415 * Collect the name of the process that finished...
1418 cupsdFinishProcess(pid
, name
, sizeof(name
), &job_id
);
1421 * Delete certificates for CGI processes...
1425 cupsdDeleteCert(pid
);
1428 * Handle completed job filters...
1432 job
= cupsdFindJob(job_id
);
1438 for (i
= 0; job
->filters
[i
]; i
++)
1439 if (job
->filters
[i
] == pid
)
1442 if (job
->filters
[i
] || job
->backend
== pid
)
1445 * OK, this process has gone away; what's left?
1448 if (job
->filters
[i
])
1450 job
->filters
[i
] = -pid
;
1455 job
->backend
= -pid
;
1459 if (status
&& status
!= SIGTERM
&& status
!= SIGKILL
&&
1463 * An error occurred; save the exit status so we know to stop
1464 * the printer or cancel the job when all of the filters finish...
1466 * A negative status indicates that the backend failed and the
1467 * printer needs to be stopped.
1469 * In order to preserve the most serious status, we always log
1470 * when a process dies due to a signal (e.g. SIGABRT, SIGSEGV,
1471 * and SIGBUS) and prefer to log the backend exit status over a
1475 int old_status
= abs(job
->status
);
1477 if (WIFSIGNALED(status
) || /* This process crashed, or */
1478 !job
->status
|| /* No process had a status, or */
1479 (!job
->filters
[i
] && WIFEXITED(old_status
)))
1480 { /* Backend and filter didn't crash */
1481 if (job
->filters
[i
])
1483 job
->status
= status
; /* Filter failed */
1487 job
->status
= -status
; /* Backend failed */
1489 if (job
->current_file
< job
->num_files
)
1490 cupsdSetJobState(job
, IPP_JOB_ABORTED
, CUPSD_JOB_FORCE
, "Canceling multi-file job due to backend failure.");
1494 if (job
->state_value
== IPP_JOB_PROCESSING
&&
1495 job
->status_level
> CUPSD_LOG_ERROR
&&
1496 (job
->filters
[i
] || !WIFEXITED(status
)))
1498 char message
[1024]; /* New printer-state-message */
1501 job
->status_level
= CUPSD_LOG_ERROR
;
1503 snprintf(message
, sizeof(message
), "%s failed", type
);
1507 strlcpy(job
->printer
->state_message
, message
,
1508 sizeof(job
->printer
->state_message
));
1514 if (!job
->printer_message
&& job
->attrs
)
1516 if ((job
->printer_message
=
1517 ippFindAttribute(job
->attrs
, "job-printer-state-message",
1518 IPP_TAG_TEXT
)) == NULL
)
1519 job
->printer_message
= ippAddString(job
->attrs
, IPP_TAG_JOB
,
1521 "job-printer-state-message",
1525 if (job
->printer_message
)
1526 ippSetString(job
->attrs
, &job
->printer_message
, 0, message
);
1531 * If this is not the last file in a job, see if all of the
1532 * filters are done, and if so move to the next file.
1535 if (job
->state_value
>= IPP_JOB_CANCELED
)
1538 * Remove the job from the active list if there are no processes still
1542 for (i
= 0; job
->filters
[i
] < 0; i
++);
1544 if (!job
->filters
[i
] && job
->backend
<= 0)
1545 cupsArrayRemove(ActiveJobs
, job
);
1547 else if (job
->current_file
< job
->num_files
&& job
->printer
)
1549 for (i
= 0; job
->filters
[i
] < 0; i
++);
1551 if (!job
->filters
[i
] &&
1552 (!job
->printer
->pc
|| !job
->printer
->pc
->single_file
||
1556 * Process the next file...
1559 cupsdContinueJob(job
);
1566 * Show the exit status as needed, ignoring SIGTERM and SIGKILL errors
1567 * since they come when we kill/end a process...
1570 if (status
== SIGTERM
|| status
== SIGKILL
)
1572 cupsdLogJob(job
, CUPSD_LOG_DEBUG
,
1573 "PID %d (%s) was terminated normally with signal %d.", pid
,
1576 else if (status
== SIGPIPE
)
1578 cupsdLogJob(job
, CUPSD_LOG_DEBUG
,
1579 "PID %d (%s) did not catch or ignore signal %d.", pid
, name
,
1584 if (WIFEXITED(status
))
1586 int code
= WEXITSTATUS(status
); /* Exit code */
1589 cupsdLogJob(job
, CUPSD_LOG_DEBUG
,
1590 "PID %d (%s) stopped with status %d (%s)", pid
, name
,
1591 code
, strerror(code
- 100));
1593 cupsdLogJob(job
, CUPSD_LOG_DEBUG
,
1594 "PID %d (%s) stopped with status %d.", pid
, name
, code
);
1597 cupsdLogJob(job
, CUPSD_LOG_DEBUG
, "PID %d (%s) crashed on signal %d.",
1598 pid
, name
, WTERMSIG(status
));
1600 if (LogLevel
< CUPSD_LOG_DEBUG
)
1601 cupsdLogJob(job
, CUPSD_LOG_INFO
,
1602 "Hint: Try setting the LogLevel to \"debug\" to find out "
1606 cupsdLogJob(job
, CUPSD_LOG_DEBUG
, "PID %d (%s) exited with no errors.",
1611 * If wait*() is interrupted by a signal, tell main() to call us again...
1614 if (pid
< 0 && errno
== EINTR
)
1620 * 'select_timeout()' - Calculate the select timeout value.
1624 static long /* O - Number of seconds */
1625 select_timeout(int fds
) /* I - Number of descriptors returned */
1627 long timeout
; /* Timeout for select */
1628 time_t now
; /* Current time */
1629 cupsd_client_t
*con
; /* Client information */
1630 cupsd_job_t
*job
; /* Job information */
1631 cupsd_printer_t
*printer
; /* Printer information */
1632 const char *why
; /* Debugging aid */
1635 cupsdLogMessage(CUPSD_LOG_DEBUG2
, "select_timeout: JobHistoryUpdate=%ld",
1636 (long)JobHistoryUpdate
);
1639 * Check to see if any of the clients have pending data to be
1640 * processed; if so, the timeout should be 0...
1643 for (con
= (cupsd_client_t
*)cupsArrayFirst(Clients
);
1645 con
= (cupsd_client_t
*)cupsArrayNext(Clients
))
1646 if (httpGetReady(con
->http
))
1650 * If select has been active in the last second (fds > 0) or we have
1651 * many resources in use then don't bother trying to optimize the
1652 * timeout, just make it 1 second.
1655 if (fds
> 0 || cupsArrayCount(Clients
) > 50)
1659 * Otherwise, check all of the possible events that we need to wake for...
1663 timeout
= now
+ 86400; /* 86400 == 1 day */
1668 * When going to sleep, wake up to abort jobs that don't complete in time.
1671 if (SleepJobs
> 0 && SleepJobs
< timeout
)
1673 timeout
= SleepJobs
;
1674 why
= "abort jobs before sleeping";
1676 #endif /* __APPLE__ */
1679 * Check whether we are accepting new connections...
1682 if (ListeningPaused
> 0 && cupsArrayCount(Clients
) < MaxClients
&&
1683 ListeningPaused
< timeout
)
1685 if (ListeningPaused
<= now
)
1688 timeout
= ListeningPaused
;
1690 why
= "resume listening";
1694 * Check the activity and close old clients...
1697 for (con
= (cupsd_client_t
*)cupsArrayFirst(Clients
);
1699 con
= (cupsd_client_t
*)cupsArrayNext(Clients
))
1700 if ((httpGetActivity(con
->http
) + Timeout
) < timeout
)
1702 timeout
= httpGetActivity(con
->http
) + Timeout
;
1703 why
= "timeout a client connection";
1707 * Write out changes to configuration and state files...
1710 if (DirtyCleanTime
&& timeout
> DirtyCleanTime
)
1712 timeout
= DirtyCleanTime
;
1713 why
= "write dirty config/state files";
1717 * Check for any job activity...
1720 if (JobHistoryUpdate
&& timeout
> JobHistoryUpdate
)
1722 timeout
= JobHistoryUpdate
;
1723 why
= "update job history";
1726 for (job
= (cupsd_job_t
*)cupsArrayFirst(ActiveJobs
);
1728 job
= (cupsd_job_t
*)cupsArrayNext(ActiveJobs
))
1730 if (job
->cancel_time
&& job
->cancel_time
< timeout
)
1732 timeout
= job
->cancel_time
;
1733 why
= "cancel stuck jobs";
1736 if (job
->kill_time
&& job
->kill_time
< timeout
)
1738 timeout
= job
->kill_time
;
1739 why
= "kill unresponsive jobs";
1742 if (job
->state_value
== IPP_JOB_HELD
&& job
->hold_until
< timeout
)
1744 timeout
= job
->hold_until
;
1745 why
= "release held jobs";
1748 if (job
->state_value
== IPP_JOB_PENDING
&& timeout
> (now
+ 10))
1751 why
= "start pending jobs";
1757 * Check for temporary printers that need to be deleted...
1760 for (printer
= (cupsd_printer_t
*)cupsArrayFirst(Printers
); printer
; printer
= (cupsd_printer_t
*)cupsArrayNext(Printers
))
1762 if (printer
->temporary
&& !printer
->job
&& (!local_timeout
|| local_timeout
> (printer
->state_time
+ 60)))
1763 local_timeout
= printer
->state_time
+ 60;
1766 if (timeout
> local_timeout
&& local_timeout
)
1768 timeout
= local_timeout
;
1769 why
= "delete stale local printers";
1773 * Adjust from absolute to relative time. We add 1 second to the timeout since
1774 * events occur after the timeout expires, and limit the timeout to 86400
1775 * seconds (1 day) to avoid select() timeout limits present on some operating
1779 timeout
= timeout
- now
+ 1;
1783 else if (timeout
> 86400)
1787 * Log and return the timeout value...
1790 cupsdLogMessage(CUPSD_LOG_DEBUG2
, "select_timeout(%d): %ld seconds to %s",
1798 * 'sigchld_handler()' - Handle 'child' signals from old processes.
1802 sigchld_handler(int sig
) /* I - Signal number */
1807 * Flag that we have dead children...
1813 * Reset the signal handler as needed...
1816 #if !defined(HAVE_SIGSET) && !defined(HAVE_SIGACTION)
1817 signal(SIGCLD
, sigchld_handler
);
1818 #endif /* !HAVE_SIGSET && !HAVE_SIGACTION */
1823 * 'sighup_handler()' - Handle 'hangup' signals to reconfigure the scheduler.
1827 sighup_handler(int sig
) /* I - Signal number */
1831 NeedReload
= RELOAD_ALL
;
1832 ReloadTime
= time(NULL
);
1834 #if !defined(HAVE_SIGSET) && !defined(HAVE_SIGACTION)
1835 signal(SIGHUP
, sighup_handler
);
1836 #endif /* !HAVE_SIGSET && !HAVE_SIGACTION */
1841 * 'sigterm_handler()' - Handle 'terminate' signals that stop the scheduler.
1845 sigterm_handler(int sig
) /* I - Signal number */
1847 (void)sig
; /* remove compiler warnings... */
1850 * Flag that we should stop and return...
1857 #ifdef HAVE_ONDEMAND
1859 * 'service_add_listener()' - Bind an open fd as a Listener.
1863 service_add_listener(int fd
, /* I - Socket file descriptor */
1864 int idx
) /* I - Listener number, for logging */
1866 cupsd_listener_t
*lis
; /* Listeners array */
1867 http_addr_t addr
; /* Address variable */
1868 socklen_t addrlen
; /* Length of address */
1869 char s
[256]; /* String addresss */
1872 addrlen
= sizeof(addr
);
1874 if (getsockname(fd
, (struct sockaddr
*)&addr
, &addrlen
))
1876 cupsdLogMessage(CUPSD_LOG_ERROR
, "service_add_listener: Unable to get local address for listener #%d: %s", idx
+ 1, strerror(errno
));
1880 cupsdLogMessage(CUPSD_LOG_DEBUG
, "service_add_listener: Listener #%d at fd %d, \"%s\".", idx
+ 1, fd
, httpAddrString(&addr
, s
, sizeof(s
)));
1883 * Try to match the on-demand socket address to one of the listeners...
1886 for (lis
= (cupsd_listener_t
*)cupsArrayFirst(Listeners
);
1888 lis
= (cupsd_listener_t
*)cupsArrayNext(Listeners
))
1889 if (httpAddrEqual(&lis
->address
, &addr
))
1893 * Add a new listener If there's no match...
1898 cupsdLogMessage(CUPSD_LOG_DEBUG
, "service_add_listener: Matched existing listener #%d to %s.", idx
+ 1, httpAddrString(&(lis
->address
), s
, sizeof(s
)));
1902 cupsdLogMessage(CUPSD_LOG_DEBUG
, "service_add_listener: Adding new listener #%d for %s.", idx
+ 1, httpAddrString(&addr
, s
, sizeof(s
)));
1904 if ((lis
= calloc(1, sizeof(cupsd_listener_t
))) == NULL
)
1906 cupsdLogMessage(CUPSD_LOG_ERROR
, "service_add_listener: Unable to allocate listener: %s.", strerror(errno
));
1911 cupsArrayAdd(Listeners
, lis
);
1913 memcpy(&lis
->address
, &addr
, sizeof(lis
->address
));
1920 if (httpAddrPort(&(lis
->address
)) == 443)
1921 lis
->encryption
= HTTP_ENCRYPT_ALWAYS
;
1922 # endif /* HAVE_SSL */
1924 #endif /* HAVE_ONDEMAND */
1928 * 'service_checkin()' - Check-in with launchd and collect the listening fds.
1932 service_checkin(void)
1934 cupsdLogMessage(CUPSD_LOG_DEBUG
, "service_checkin: pid=%d", (int)getpid());
1939 int error
; /* Check-in error, if any */
1940 size_t i
, /* Looping var */
1941 count
; /* Number of listeners */
1942 int *ld_sockets
; /* Listener sockets */
1946 * Force "user initiated" priority for the main thread...
1949 pthread_set_qos_class_self_np(QOS_CLASS_USER_INITIATED
, 0);
1950 # endif /* __APPLE__ */
1953 * Check-in with launchd...
1956 if ((error
= launch_activate_socket("Listeners", &ld_sockets
, &count
)) != 0)
1958 cupsdLogMessage(CUPSD_LOG_ERROR
, "service_checkin: Unable to get listener sockets: %s", strerror(error
));
1960 return; /* anti-compiler-warning */
1964 * Try to match the launchd sockets to the cupsd listeners...
1967 cupsdLogMessage(CUPSD_LOG_DEBUG
, "service_checkin: %d listeners.", (int)count
);
1969 for (i
= 0; i
< count
; i
++)
1970 service_add_listener(ld_sockets
[i
], (int)i
);
1975 launchd_transaction
= os_transaction_create("org.cups.cupsd.active-printing");
1976 # endif /* __APPLE__ */
1979 #elif defined(HAVE_SYSTEMD)
1982 int i
, /* Looping var */
1983 count
; /* Number of listeners */
1986 * Check-in with systemd...
1989 if ((count
= sd_listen_fds(0)) < 0)
1991 cupsdLogMessage(CUPSD_LOG_ERROR
, "service_checkin: Unable to get listener sockets: %s", strerror(-count
));
1993 return; /* anti-compiler-warning */
1997 * Try to match the systemd sockets to the cupsd listeners...
2000 cupsdLogMessage(CUPSD_LOG_DEBUG
, "service_checkin: %d listeners.", count
);
2002 for (i
= 0; i
< count
; i
++)
2003 service_add_listener(SD_LISTEN_FDS_START
+ i
, i
);
2006 #elif defined(HAVE_UPSTART)
2009 const char *e
; /* Environment var */
2010 int fd
; /* File descriptor */
2013 if (!(e
= getenv("UPSTART_EVENTS")))
2015 cupsdLogMessage(CUPSD_LOG_ERROR
, "service_checkin: We did not get started via Upstart.");
2020 if (strcasecmp(e
, "socket"))
2022 cupsdLogMessage(CUPSD_LOG_ERROR
, "service_checkin: We did not get triggered via an Upstart socket event.");
2027 if ((e
= getenv("UPSTART_FDS")) == NULL
)
2029 cupsdLogMessage(CUPSD_LOG_ERROR
, "service_checkin: Unable to get listener sockets from UPSTART_FDS.");
2034 cupsdLogMessage(CUPSD_LOG_DEBUG
, "service_checkin: UPSTART_FDS=%s", e
);
2036 fd
= (int)strtol(e
, NULL
, 10);
2039 cupsdLogMessage(CUPSD_LOG_ERROR
, "service_checkin: Could not parse UPSTART_FDS: %s", strerror(errno
));
2045 * Upstart only supportst a single on-demand socket file descriptor...
2048 service_add_listener(fd
, 0);
2050 #endif /* HAVE_LAUNCHD */
2055 * 'service_checkout()' - Update the KeepAlive/PID file as needed.
2059 service_checkout(int shutdown
) /* I - Shutting down? */
2061 cups_file_t
*fp
; /* File */
2062 char pidfile
[1024]; /* PID/KeepAlive file */
2066 * When running on-demand, use the KeepAlive file, otherwise write a PID file
2070 #ifdef HAVE_ONDEMAND
2073 strlcpy(pidfile
, CUPS_KEEPALIVE
, sizeof(pidfile
));
2075 if (cupsArrayCount(ActiveJobs
) || /* Active jobs */
2076 WebInterface
|| /* Web interface enabled */
2077 NeedReload
|| /* Doing a reload */
2078 (Browsing
&& BrowseLocalProtocols
&& cupsArrayCount(Printers
)))
2079 /* Printers being shared */
2082 * Create or remove the "keep-alive" file based on whether there are active
2083 * jobs or shared printers to advertise...
2090 #endif /* HAVE_ONDEMAND */
2091 snprintf(pidfile
, sizeof(pidfile
), "%s/cupsd.pid", StateDir
);
2095 cupsdLogMessage(CUPSD_LOG_DEBUG
, "Removing KeepAlive/PID file \"%s\".", pidfile
);
2101 cupsdLogMessage(CUPSD_LOG_DEBUG
, "Creating KeepAlive/PID file \"%s\".", pidfile
);
2103 if ((fp
= cupsFileOpen(pidfile
, "w")) != NULL
)
2106 * Save the PID in the file...
2109 cupsFilePrintf(fp
, "%d\n", (int)getpid());
2113 cupsdLogMessage(CUPSD_LOG_ERROR
, "Unable to create KeepAlive/PID file \"%s\": %s", pidfile
, strerror(errno
));
2117 if (OnDemand
&& shutdown
&& launchd_transaction
)
2119 os_release(launchd_transaction
);
2120 launchd_transaction
= NULL
;
2122 # endif /* __APPLE__ */
2127 * 'usage()' - Show scheduler usage.
2131 usage(int status
) /* O - Exit status */
2133 FILE *fp
= status
? stderr
: stdout
; /* Output file */
2136 _cupsLangPuts(fp
, _("Usage: cupsd [options]"));
2137 _cupsLangPuts(fp
, _("Options:"));
2138 _cupsLangPuts(fp
, _(" -c cupsd.conf Set cupsd.conf file to use."));
2139 _cupsLangPuts(fp
, _(" -f Run in the foreground."));
2140 _cupsLangPuts(fp
, _(" -F Run in the foreground but detach from console."));
2141 _cupsLangPuts(fp
, _(" -h Show this usage message."));
2142 #ifdef HAVE_ONDEMAND
2143 _cupsLangPuts(fp
, _(" -l Run cupsd on demand."));
2144 #endif /* HAVE_ONDEMAND */
2145 _cupsLangPuts(fp
, _(" -s cups-files.conf Set cups-files.conf file to use."));
2146 _cupsLangPuts(fp
, _(" -t Test the configuration file."));