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09ec0018 | 1 | /* |
b19ccc9e | 2 | * "$Id: sysman.c 7928 2008-09-10 22:14:22Z mike $" |
09ec0018 | 3 | * |
4 | * System management definitions for the Common UNIX Printing System (CUPS). | |
5 | * | |
238c3832 | 6 | * Copyright 2007-2009 by Apple Inc. |
09ec0018 | 7 | * Copyright 2006 by Easy Software Products. |
8 | * | |
9 | * These coded instructions, statements, and computer programs are the | |
bc44d920 | 10 | * property of Apple Inc. and are protected by Federal copyright |
11 | * law. Distribution and use rights are outlined in the file "LICENSE.txt" | |
12 | * which should have been included with this file. If this file is | |
13 | * file is missing or damaged, see the license at "http://www.cups.org/". | |
09ec0018 | 14 | * |
15 | * Contents: | |
16 | * | |
3dfe78b3 MS |
17 | * cupsdCleanDirty() - Write dirty config and state files. |
18 | * cupsdMarkDirty() - Mark config or state files as needing a | |
19 | * write. | |
20 | * cupsdSetBusyState() - Let the system know when we are busy | |
21 | * doing something. | |
e6013cfa | 22 | * cupsdAllowSleep() - Tell the OS it is now OK to sleep. |
09ec0018 | 23 | * cupsdStartSystemMonitor() - Start monitoring for system change. |
24 | * cupsdStopSystemMonitor() - Stop monitoring for system change. | |
09ec0018 | 25 | * sysEventThreadEntry() - A thread to receive power and computer |
26 | * name change notifications. | |
27 | * sysEventPowerNotifier() - Handle power notification events. | |
28 | * sysEventConfigurationNotifier() - Computer name changed notification | |
29 | * callback. | |
30 | * sysEventTimerNotifier() - Handle delayed event notifications. | |
75bd9771 | 31 | * sysUpdate() - Update the current system state. |
09ec0018 | 32 | */ |
33 | ||
34 | ||
35 | /* | |
36 | * Include necessary headers... | |
37 | */ | |
38 | ||
39 | #include "cupsd.h" | |
178cb736 MS |
40 | #ifdef HAVE_VPROC_TRANSACTION_BEGIN |
41 | # include <vproc.h> | |
42 | #endif /* HAVE_VPROC_TRANSACTION_BEGIN */ | |
09ec0018 | 43 | |
44 | ||
45 | /* | |
3dfe78b3 MS |
46 | * The system management functions cover disk and power management which |
47 | * are primarily used on portable computers. | |
09ec0018 | 48 | * |
3dfe78b3 MS |
49 | * Disk management involves delaying the write of certain configuration |
50 | * and state files to minimize the number of times the disk has to spin | |
51 | * up. | |
52 | * | |
53 | * Power management support is currently only implemented on MacOS X, but | |
54 | * essentially we use four functions to let the OS know when it is OK to | |
55 | * put the system to idle sleep, typically when we are not in the middle of | |
56 | * printing a job. | |
57 | * | |
58 | * Once put to sleep, we invalidate all remote printers since it is common | |
59 | * to wake up in a new location/on a new wireless network. | |
60 | */ | |
61 | ||
62 | ||
63 | /* | |
64 | * 'cupsdCleanDirty()' - Write dirty config and state files. | |
09ec0018 | 65 | */ |
66 | ||
3dfe78b3 MS |
67 | void |
68 | cupsdCleanDirty(void) | |
69 | { | |
70 | if (DirtyFiles & CUPSD_DIRTY_PRINTERS) | |
71 | cupsdSaveAllPrinters(); | |
72 | ||
73 | if (DirtyFiles & CUPSD_DIRTY_CLASSES) | |
74 | cupsdSaveAllClasses(); | |
75 | ||
76 | if (DirtyFiles & CUPSD_DIRTY_REMOTE) | |
77 | cupsdSaveRemoteCache(); | |
78 | ||
79 | if (DirtyFiles & CUPSD_DIRTY_PRINTCAP) | |
80 | cupsdWritePrintcap(); | |
81 | ||
82 | if (DirtyFiles & CUPSD_DIRTY_JOBS) | |
83 | { | |
84 | cupsd_job_t *job; /* Current job */ | |
85 | ||
86 | cupsdSaveAllJobs(); | |
87 | ||
88 | for (job = (cupsd_job_t *)cupsArrayFirst(Jobs); | |
89 | job; | |
90 | job = (cupsd_job_t *)cupsArrayNext(Jobs)) | |
91 | if (job->dirty) | |
92 | cupsdSaveJob(job); | |
93 | } | |
94 | ||
95 | if (DirtyFiles & CUPSD_DIRTY_SUBSCRIPTIONS) | |
96 | cupsdSaveAllSubscriptions(); | |
97 | ||
98 | DirtyFiles = CUPSD_DIRTY_NONE; | |
99 | DirtyCleanTime = 0; | |
49d87452 MS |
100 | |
101 | cupsdSetBusyState(); | |
3dfe78b3 MS |
102 | } |
103 | ||
104 | ||
105 | /* | |
106 | * 'cupsdMarkDirty()' - Mark config or state files as needing a write. | |
107 | */ | |
108 | ||
109 | void | |
110 | cupsdMarkDirty(int what) /* I - What file(s) are dirty? */ | |
111 | { | |
68b10830 MS |
112 | cupsdLogMessage(CUPSD_LOG_DEBUG, "cupsdMarkDirty(%c%c%c%c%c%c)", |
113 | (what & CUPSD_DIRTY_PRINTERS) ? 'P' : '-', | |
114 | (what & CUPSD_DIRTY_CLASSES) ? 'C' : '-', | |
115 | (what & CUPSD_DIRTY_REMOTE) ? 'R' : '-', | |
116 | (what & CUPSD_DIRTY_PRINTCAP) ? 'p' : '-', | |
117 | (what & CUPSD_DIRTY_JOBS) ? 'J' : '-', | |
118 | (what & CUPSD_DIRTY_SUBSCRIPTIONS) ? 'S' : '-'); | |
119 | ||
49d87452 MS |
120 | if (what == CUPSD_DIRTY_PRINTCAP && !Printcap) |
121 | return; | |
122 | ||
3dfe78b3 MS |
123 | DirtyFiles |= what; |
124 | ||
125 | if (!DirtyCleanTime) | |
126 | DirtyCleanTime = time(NULL) + DirtyCleanInterval; | |
127 | ||
128 | cupsdSetBusyState(); | |
129 | } | |
130 | ||
131 | ||
132 | /* | |
133 | * 'cupsdSetBusyState()' - Let the system know when we are busy doing something. | |
134 | */ | |
135 | ||
136 | void | |
137 | cupsdSetBusyState(void) | |
138 | { | |
139 | int newbusy; /* New busy state */ | |
140 | static int busy = 0; /* Current busy state */ | |
49d87452 MS |
141 | static const char * const busy_text[] = |
142 | { /* Text for busy states */ | |
143 | "Not busy", | |
144 | "Dirty files", | |
145 | "Printing jobs", | |
146 | "Printing jobs and dirty files", | |
147 | "Active clients", | |
148 | "Active clients and dirty files", | |
149 | "Active clients and printing jobs", | |
150 | "Active clients, printing jobs, and dirty files" | |
151 | }; | |
178cb736 MS |
152 | #ifdef HAVE_VPROC_TRANSACTION_BEGIN |
153 | static vproc_transaction_t vtran = 0; /* Current busy transaction */ | |
154 | #endif /* HAVE_VPROC_TRANSACTION_BEGIN */ | |
49d87452 MS |
155 | |
156 | ||
157 | newbusy = (DirtyCleanTime ? 1 : 0) | | |
158 | (cupsArrayCount(PrintingJobs) ? 2 : 0) | | |
159 | (cupsArrayCount(ActiveClients) ? 4 : 0); | |
3dfe78b3 MS |
160 | |
161 | if (newbusy != busy) | |
162 | { | |
163 | busy = newbusy; | |
164 | ||
178cb736 MS |
165 | #ifdef HAVE_VPROC_TRANSACTION_BEGIN |
166 | if (busy && !vtran) | |
167 | vtran = vproc_transaction_begin(NULL); | |
168 | else if (!busy && vtran) | |
169 | { | |
170 | vproc_transaction_end(NULL, vtran); | |
171 | vtran = 0; | |
172 | } | |
173 | #endif /* HAVE_VPROC_TRANSACTION_BEGIN */ | |
174 | ||
49d87452 | 175 | cupsdLogMessage(CUPSD_LOG_DEBUG, "cupsdSetBusyState: %s", busy_text[busy]); |
3dfe78b3 MS |
176 | } |
177 | } | |
178 | ||
179 | ||
09ec0018 | 180 | #ifdef __APPLE__ |
181 | /* | |
182 | * This is the Apple-specific system event code. It works by creating | |
183 | * a worker thread that waits for events from the OS and relays them | |
184 | * to the main thread via a traditional pipe. | |
185 | */ | |
186 | ||
187 | /* | |
188 | * Include MacOS-specific headers... | |
189 | */ | |
190 | ||
191 | # include <IOKit/IOKitLib.h> | |
192 | # include <IOKit/IOMessage.h> | |
193 | # include <IOKit/pwr_mgt/IOPMLib.h> | |
194 | # include <SystemConfiguration/SystemConfiguration.h> | |
195 | # include <pthread.h> | |
196 | ||
197 | ||
198 | /* | |
199 | * Constants... | |
200 | */ | |
201 | ||
a4d04587 | 202 | # define SYSEVENT_CANSLEEP 0x1 /* Decide whether to allow sleep or not */ |
203 | # define SYSEVENT_WILLSLEEP 0x2 /* Computer will go to sleep */ | |
204 | # define SYSEVENT_WOKE 0x4 /* Computer woke from sleep */ | |
205 | # define SYSEVENT_NETCHANGED 0x8 /* Network changed */ | |
206 | # define SYSEVENT_NAMECHANGED 0x10 /* Computer name changed */ | |
09ec0018 | 207 | |
208 | ||
209 | /* | |
210 | * Structures... | |
211 | */ | |
212 | ||
213 | typedef struct cupsd_sysevent_s /*** System event data ****/ | |
214 | { | |
215 | unsigned char event; /* Event bit field */ | |
216 | io_connect_t powerKernelPort; /* Power context data */ | |
217 | long powerNotificationID; /* Power event data */ | |
218 | } cupsd_sysevent_t; | |
219 | ||
220 | ||
221 | typedef struct cupsd_thread_data_s /*** Thread context data ****/ | |
222 | { | |
223 | cupsd_sysevent_t sysevent; /* System event */ | |
224 | CFRunLoopTimerRef timerRef; /* Timer to delay some change * | |
225 | * notifications */ | |
226 | } cupsd_thread_data_t; | |
227 | ||
228 | ||
229 | /* | |
230 | * Local globals... | |
231 | */ | |
232 | ||
233 | static pthread_t SysEventThread = NULL; | |
234 | /* Thread to host a runloop */ | |
235 | static pthread_mutex_t SysEventThreadMutex = { 0 }; | |
236 | /* Coordinates access to shared gloabals */ | |
237 | static pthread_cond_t SysEventThreadCond = { 0 }; | |
238 | /* Thread initialization complete condition */ | |
239 | static CFRunLoopRef SysEventRunloop = NULL; | |
240 | /* The runloop. Access must be protected! */ | |
241 | static CFStringRef ComputerNameKey = NULL, | |
242 | /* Computer name key */ | |
e07d4801 | 243 | BTMMKey = NULL, /* Back to My Mac key */ |
411affcf | 244 | NetworkGlobalKeyIPv4 = NULL, |
245 | /* Network global IPv4 key */ | |
246 | NetworkGlobalKeyIPv6 = NULL, | |
247 | /* Network global IPv6 key */ | |
248 | NetworkGlobalKeyDNS = NULL, | |
249 | /* Network global DNS key */ | |
09ec0018 | 250 | HostNamesKey = NULL, |
251 | /* Host name key */ | |
411affcf | 252 | NetworkInterfaceKeyIPv4 = NULL, |
253 | /* Netowrk interface key */ | |
254 | NetworkInterfaceKeyIPv6 = NULL; | |
09ec0018 | 255 | /* Netowrk interface key */ |
e6013cfa | 256 | static cupsd_sysevent_t LastSysEvent; /* Last system event (for delayed sleep) */ |
09ec0018 | 257 | |
258 | ||
259 | /* | |
260 | * Local functions... | |
261 | */ | |
262 | ||
263 | static void *sysEventThreadEntry(void); | |
264 | static void sysEventPowerNotifier(void *context, io_service_t service, | |
265 | natural_t messageType, | |
266 | void *messageArgument); | |
267 | static void sysEventConfigurationNotifier(SCDynamicStoreRef store, | |
268 | CFArrayRef changedKeys, | |
269 | void *context); | |
270 | static void sysEventTimerNotifier(CFRunLoopTimerRef timer, void *context); | |
75bd9771 | 271 | static void sysUpdate(void); |
09ec0018 | 272 | |
273 | ||
e6013cfa MS |
274 | /* |
275 | * 'cupsdAllowSleep()' - Tell the OS it is now OK to sleep. | |
276 | */ | |
277 | ||
278 | void | |
279 | cupsdAllowSleep(void) | |
280 | { | |
281 | cupsdCleanDirty(); | |
282 | ||
283 | IOAllowPowerChange(LastSysEvent.powerKernelPort, | |
284 | LastSysEvent.powerNotificationID); | |
285 | } | |
286 | ||
287 | ||
09ec0018 | 288 | /* |
289 | * 'cupsdStartSystemMonitor()' - Start monitoring for system change. | |
290 | */ | |
291 | ||
292 | void | |
293 | cupsdStartSystemMonitor(void) | |
294 | { | |
295 | int flags; /* fcntl flags on pipe */ | |
296 | ||
297 | ||
298 | if (cupsdOpenPipe(SysEventPipes)) | |
299 | { | |
300 | cupsdLogMessage(CUPSD_LOG_ERROR, "System event monitor pipe() failed - %s!", | |
301 | strerror(errno)); | |
302 | return; | |
303 | } | |
304 | ||
75bd9771 | 305 | cupsdAddSelect(SysEventPipes[0], (cupsd_selfunc_t)sysUpdate, NULL, NULL); |
09ec0018 | 306 | |
307 | /* | |
308 | * Set non-blocking mode on the descriptor we will be receiving notification | |
309 | * events on. | |
310 | */ | |
311 | ||
312 | flags = fcntl(SysEventPipes[0], F_GETFL, 0); | |
313 | fcntl(SysEventPipes[0], F_SETFL, flags | O_NONBLOCK); | |
314 | ||
315 | /* | |
316 | * Start the thread that runs the runloop... | |
317 | */ | |
318 | ||
319 | pthread_mutex_init(&SysEventThreadMutex, NULL); | |
320 | pthread_cond_init(&SysEventThreadCond, NULL); | |
321 | pthread_create(&SysEventThread, NULL, (void *(*)())sysEventThreadEntry, NULL); | |
322 | } | |
323 | ||
324 | ||
325 | /* | |
326 | * 'cupsdStopSystemMonitor()' - Stop monitoring for system change. | |
327 | */ | |
328 | ||
329 | void | |
330 | cupsdStopSystemMonitor(void) | |
331 | { | |
332 | CFRunLoopRef rl; /* The event handler runloop */ | |
333 | ||
334 | ||
335 | if (SysEventThread) | |
336 | { | |
337 | /* | |
338 | * Make sure the thread has completed it's initialization and | |
339 | * stored it's runloop reference in the shared global. | |
340 | */ | |
341 | ||
342 | pthread_mutex_lock(&SysEventThreadMutex); | |
343 | ||
344 | if (!SysEventRunloop) | |
345 | pthread_cond_wait(&SysEventThreadCond, &SysEventThreadMutex); | |
346 | ||
347 | rl = SysEventRunloop; | |
348 | SysEventRunloop = NULL; | |
349 | ||
350 | pthread_mutex_unlock(&SysEventThreadMutex); | |
351 | ||
352 | if (rl) | |
353 | CFRunLoopStop(rl); | |
354 | ||
355 | pthread_join(SysEventThread, NULL); | |
356 | pthread_mutex_destroy(&SysEventThreadMutex); | |
357 | pthread_cond_destroy(&SysEventThreadCond); | |
358 | } | |
359 | ||
360 | if (SysEventPipes[0] >= 0) | |
361 | { | |
f7deaa1a | 362 | cupsdRemoveSelect(SysEventPipes[0]); |
09ec0018 | 363 | cupsdClosePipe(SysEventPipes); |
364 | } | |
365 | } | |
366 | ||
367 | ||
09ec0018 | 368 | /* |
369 | * 'sysEventThreadEntry()' - A thread to receive power and computer name | |
370 | * change notifications. | |
371 | */ | |
372 | ||
373 | static void * /* O - Return status/value */ | |
374 | sysEventThreadEntry(void) | |
375 | { | |
376 | io_object_t powerNotifierObj; | |
377 | /* Power notifier object */ | |
378 | IONotificationPortRef powerNotifierPort; | |
379 | /* Power notifier port */ | |
380 | SCDynamicStoreRef store = NULL;/* System Config dynamic store */ | |
381 | CFRunLoopSourceRef powerRLS = NULL,/* Power runloop source */ | |
382 | storeRLS = NULL;/* System Config runloop source */ | |
e07d4801 | 383 | CFStringRef key[6], /* System Config keys */ |
411affcf | 384 | pattern[2]; /* System Config patterns */ |
09ec0018 | 385 | CFArrayRef keys = NULL, /* System Config key array*/ |
386 | patterns = NULL;/* System Config pattern array */ | |
387 | SCDynamicStoreContext storeContext; /* Dynamic store context */ | |
388 | CFRunLoopTimerContext timerContext; /* Timer context */ | |
389 | cupsd_thread_data_t threadData; /* Thread context data for the * | |
390 | * runloop notifiers */ | |
391 | ||
392 | ||
393 | /* | |
394 | * Register for power state change notifications | |
395 | */ | |
396 | ||
397 | bzero(&threadData, sizeof(threadData)); | |
398 | ||
399 | threadData.sysevent.powerKernelPort = | |
400 | IORegisterForSystemPower(&threadData, &powerNotifierPort, | |
401 | sysEventPowerNotifier, &powerNotifierObj); | |
402 | ||
403 | if (threadData.sysevent.powerKernelPort) | |
404 | { | |
405 | powerRLS = IONotificationPortGetRunLoopSource(powerNotifierPort); | |
406 | CFRunLoopAddSource(CFRunLoopGetCurrent(), powerRLS, kCFRunLoopDefaultMode); | |
407 | } | |
408 | else | |
409 | DEBUG_puts("sysEventThreadEntry: error registering for system power " | |
410 | "notifications"); | |
411 | ||
412 | /* | |
413 | * Register for system configuration change notifications | |
414 | */ | |
415 | ||
416 | bzero(&storeContext, sizeof(storeContext)); | |
417 | storeContext.info = &threadData; | |
418 | ||
e07d4801 | 419 | store = SCDynamicStoreCreate(kCFAllocatorDefault, CFSTR("cupsd"), |
09ec0018 | 420 | sysEventConfigurationNotifier, &storeContext); |
421 | ||
422 | if (!ComputerNameKey) | |
e07d4801 MS |
423 | ComputerNameKey = SCDynamicStoreKeyCreateComputerName(kCFAllocatorDefault); |
424 | ||
425 | if (!BTMMKey) | |
426 | BTMMKey = SCDynamicStoreKeyCreate(kCFAllocatorDefault, | |
427 | CFSTR("Setup:/Network/BackToMyMac")); | |
09ec0018 | 428 | |
411affcf | 429 | if (!NetworkGlobalKeyIPv4) |
430 | NetworkGlobalKeyIPv4 = | |
e07d4801 | 431 | SCDynamicStoreKeyCreateNetworkGlobalEntity(kCFAllocatorDefault, |
09ec0018 | 432 | kSCDynamicStoreDomainState, |
433 | kSCEntNetIPv4); | |
434 | ||
411affcf | 435 | if (!NetworkGlobalKeyIPv6) |
436 | NetworkGlobalKeyIPv6 = | |
e07d4801 | 437 | SCDynamicStoreKeyCreateNetworkGlobalEntity(kCFAllocatorDefault, |
411affcf | 438 | kSCDynamicStoreDomainState, |
439 | kSCEntNetIPv6); | |
440 | ||
441 | if (!NetworkGlobalKeyDNS) | |
442 | NetworkGlobalKeyDNS = | |
e07d4801 | 443 | SCDynamicStoreKeyCreateNetworkGlobalEntity(kCFAllocatorDefault, |
411affcf | 444 | kSCDynamicStoreDomainState, |
445 | kSCEntNetDNS); | |
446 | ||
09ec0018 | 447 | if (!HostNamesKey) |
e07d4801 | 448 | HostNamesKey = SCDynamicStoreKeyCreateHostNames(kCFAllocatorDefault); |
09ec0018 | 449 | |
411affcf | 450 | if (!NetworkInterfaceKeyIPv4) |
451 | NetworkInterfaceKeyIPv4 = | |
e07d4801 | 452 | SCDynamicStoreKeyCreateNetworkInterfaceEntity(kCFAllocatorDefault, |
09ec0018 | 453 | kSCDynamicStoreDomainState, |
454 | kSCCompAnyRegex, | |
455 | kSCEntNetIPv4); | |
456 | ||
411affcf | 457 | if (!NetworkInterfaceKeyIPv6) |
458 | NetworkInterfaceKeyIPv6 = | |
e07d4801 | 459 | SCDynamicStoreKeyCreateNetworkInterfaceEntity(kCFAllocatorDefault, |
411affcf | 460 | kSCDynamicStoreDomainState, |
461 | kSCCompAnyRegex, | |
462 | kSCEntNetIPv6); | |
463 | ||
464 | if (store && ComputerNameKey && HostNamesKey && | |
465 | NetworkGlobalKeyIPv4 && NetworkGlobalKeyIPv6 && NetworkGlobalKeyDNS && | |
466 | NetworkInterfaceKeyIPv4 && NetworkInterfaceKeyIPv6) | |
09ec0018 | 467 | { |
468 | key[0] = ComputerNameKey; | |
e07d4801 MS |
469 | key[1] = BTMMKey; |
470 | key[2] = NetworkGlobalKeyIPv4; | |
471 | key[3] = NetworkGlobalKeyIPv6; | |
472 | key[4] = NetworkGlobalKeyDNS; | |
473 | key[5] = HostNamesKey; | |
411affcf | 474 | |
475 | pattern[0] = NetworkInterfaceKeyIPv4; | |
476 | pattern[1] = NetworkInterfaceKeyIPv6; | |
09ec0018 | 477 | |
e07d4801 MS |
478 | keys = CFArrayCreate(kCFAllocatorDefault, (const void **)key, |
479 | sizeof(key) / sizeof(key[0]), | |
480 | &kCFTypeArrayCallBacks); | |
411affcf | 481 | |
e07d4801 | 482 | patterns = CFArrayCreate(kCFAllocatorDefault, (const void **)pattern, |
09ec0018 | 483 | sizeof(pattern) / sizeof(pattern[0]), |
484 | &kCFTypeArrayCallBacks); | |
485 | ||
486 | if (keys && patterns && | |
487 | SCDynamicStoreSetNotificationKeys(store, keys, patterns)) | |
488 | { | |
e07d4801 MS |
489 | if ((storeRLS = SCDynamicStoreCreateRunLoopSource(kCFAllocatorDefault, |
490 | store, 0)) != NULL) | |
09ec0018 | 491 | { |
492 | CFRunLoopAddSource(CFRunLoopGetCurrent(), storeRLS, | |
493 | kCFRunLoopDefaultMode); | |
494 | } | |
495 | else | |
496 | DEBUG_printf(("sysEventThreadEntry: SCDynamicStoreCreateRunLoopSource " | |
497 | "failed: %s\n", SCErrorString(SCError()))); | |
498 | } | |
499 | else | |
500 | DEBUG_printf(("sysEventThreadEntry: SCDynamicStoreSetNotificationKeys " | |
501 | "failed: %s\n", SCErrorString(SCError()))); | |
502 | } | |
503 | else | |
504 | DEBUG_printf(("sysEventThreadEntry: SCDynamicStoreCreate failed: %s\n", | |
505 | SCErrorString(SCError()))); | |
506 | ||
507 | if (keys) | |
508 | CFRelease(keys); | |
509 | ||
510 | if (patterns) | |
511 | CFRelease(patterns); | |
512 | ||
513 | /* | |
514 | * Set up a timer to delay the wake change notifications. | |
515 | * | |
516 | * The initial time is set a decade or so into the future, we'll adjust | |
517 | * this later. | |
518 | */ | |
519 | ||
520 | bzero(&timerContext, sizeof(timerContext)); | |
521 | timerContext.info = &threadData; | |
522 | ||
523 | threadData.timerRef = | |
e07d4801 | 524 | CFRunLoopTimerCreate(kCFAllocatorDefault, |
09ec0018 | 525 | CFAbsoluteTimeGetCurrent() + (86400L * 365L * 10L), |
526 | 86400L * 365L * 10L, 0, 0, sysEventTimerNotifier, | |
527 | &timerContext); | |
528 | CFRunLoopAddTimer(CFRunLoopGetCurrent(), threadData.timerRef, | |
529 | kCFRunLoopDefaultMode); | |
530 | ||
531 | /* | |
532 | * Store our runloop in a global so the main thread can use it to stop us. | |
533 | */ | |
534 | ||
535 | pthread_mutex_lock(&SysEventThreadMutex); | |
536 | ||
537 | SysEventRunloop = CFRunLoopGetCurrent(); | |
538 | ||
539 | pthread_cond_signal(&SysEventThreadCond); | |
540 | pthread_mutex_unlock(&SysEventThreadMutex); | |
541 | ||
542 | /* | |
543 | * Disappear into the runloop until it's stopped by the main thread. | |
544 | */ | |
545 | ||
546 | CFRunLoopRun(); | |
547 | ||
548 | /* | |
549 | * Clean up before exiting. | |
550 | */ | |
551 | ||
552 | if (threadData.timerRef) | |
553 | { | |
554 | CFRunLoopRemoveTimer(CFRunLoopGetCurrent(), threadData.timerRef, | |
555 | kCFRunLoopDefaultMode); | |
556 | CFRelease(threadData.timerRef); | |
557 | } | |
558 | ||
559 | if (threadData.sysevent.powerKernelPort) | |
560 | { | |
561 | CFRunLoopRemoveSource(CFRunLoopGetCurrent(), powerRLS, | |
562 | kCFRunLoopDefaultMode); | |
563 | IODeregisterForSystemPower(&powerNotifierObj); | |
564 | IOServiceClose(threadData.sysevent.powerKernelPort); | |
565 | IONotificationPortDestroy(powerNotifierPort); | |
566 | } | |
567 | ||
568 | if (storeRLS) | |
569 | { | |
570 | CFRunLoopRemoveSource(CFRunLoopGetCurrent(), storeRLS, | |
571 | kCFRunLoopDefaultMode); | |
572 | CFRunLoopSourceInvalidate(storeRLS); | |
573 | CFRelease(storeRLS); | |
574 | } | |
575 | ||
576 | if (store) | |
577 | CFRelease(store); | |
578 | ||
579 | pthread_exit(NULL); | |
580 | } | |
581 | ||
582 | ||
583 | /* | |
584 | * 'sysEventPowerNotifier()' - Handle power notification events. | |
585 | */ | |
586 | ||
587 | static void | |
588 | sysEventPowerNotifier( | |
589 | void *context, /* I - Thread context data */ | |
590 | io_service_t service, /* I - Unused service info */ | |
591 | natural_t messageType, /* I - Type of message */ | |
592 | void *messageArgument) /* I - Message data */ | |
593 | { | |
594 | int sendit = 1; /* Send event to main thread? * | |
595 | * (0 = no, 1 = yes, 2 = delayed */ | |
596 | cupsd_thread_data_t *threadData; /* Thread context data */ | |
597 | ||
598 | ||
599 | threadData = (cupsd_thread_data_t *)context; | |
600 | ||
601 | (void)service; /* anti-compiler-warning-code */ | |
602 | ||
603 | switch (messageType) | |
604 | { | |
605 | case kIOMessageCanSystemPowerOff: | |
606 | case kIOMessageCanSystemSleep: | |
607 | threadData->sysevent.event |= SYSEVENT_CANSLEEP; | |
608 | break; | |
609 | ||
610 | case kIOMessageSystemWillRestart: | |
611 | case kIOMessageSystemWillPowerOff: | |
612 | case kIOMessageSystemWillSleep: | |
613 | threadData->sysevent.event |= SYSEVENT_WILLSLEEP; | |
614 | break; | |
615 | ||
616 | case kIOMessageSystemHasPoweredOn: | |
617 | /* | |
618 | * Because powered on is followed by a net-changed event, delay | |
619 | * before sending it. | |
620 | */ | |
621 | ||
622 | sendit = 2; | |
623 | threadData->sysevent.event |= SYSEVENT_WOKE; | |
624 | break; | |
625 | ||
626 | case kIOMessageSystemWillNotPowerOff: | |
627 | case kIOMessageSystemWillNotSleep: | |
e07d4801 | 628 | # ifdef kIOMessageSystemWillPowerOn |
09ec0018 | 629 | case kIOMessageSystemWillPowerOn: |
e07d4801 | 630 | # endif /* kIOMessageSystemWillPowerOn */ |
09ec0018 | 631 | default: |
632 | sendit = 0; | |
633 | break; | |
634 | } | |
635 | ||
636 | if (sendit == 0) | |
637 | IOAllowPowerChange(threadData->sysevent.powerKernelPort, | |
638 | (long)messageArgument); | |
639 | else | |
640 | { | |
641 | threadData->sysevent.powerNotificationID = (long)messageArgument; | |
642 | ||
643 | if (sendit == 1) | |
644 | { | |
645 | /* | |
646 | * Send the event to the main thread now. | |
647 | */ | |
648 | ||
649 | write(SysEventPipes[1], &threadData->sysevent, | |
650 | sizeof(threadData->sysevent)); | |
651 | threadData->sysevent.event = 0; | |
652 | } | |
653 | else | |
654 | { | |
655 | /* | |
656 | * Send the event to the main thread after 1 to 2 seconds. | |
657 | */ | |
658 | ||
659 | CFRunLoopTimerSetNextFireDate(threadData->timerRef, | |
660 | CFAbsoluteTimeGetCurrent() + 2); | |
661 | } | |
662 | } | |
663 | } | |
664 | ||
665 | ||
666 | /* | |
e07d4801 | 667 | * 'sysEventConfigurationNotifier()' - Network configuration change notification |
09ec0018 | 668 | * callback. |
669 | */ | |
670 | ||
671 | static void | |
672 | sysEventConfigurationNotifier( | |
673 | SCDynamicStoreRef store, /* I - System data (unused) */ | |
674 | CFArrayRef changedKeys, /* I - Changed data */ | |
675 | void *context) /* I - Thread context data */ | |
676 | { | |
677 | cupsd_thread_data_t *threadData; /* Thread context data */ | |
678 | ||
679 | ||
680 | threadData = (cupsd_thread_data_t *)context; | |
681 | ||
682 | (void)store; /* anti-compiler-warning-code */ | |
683 | ||
684 | CFRange range = CFRangeMake(0, CFArrayGetCount(changedKeys)); | |
685 | ||
e07d4801 MS |
686 | if (CFArrayContainsValue(changedKeys, range, ComputerNameKey) || |
687 | CFArrayContainsValue(changedKeys, range, BTMMKey)) | |
09ec0018 | 688 | threadData->sysevent.event |= SYSEVENT_NAMECHANGED; |
411affcf | 689 | else |
690 | { | |
09ec0018 | 691 | threadData->sysevent.event |= SYSEVENT_NETCHANGED; |
692 | ||
411affcf | 693 | /* |
694 | * Indicate the network interface list needs updating... | |
695 | */ | |
696 | ||
697 | NetIFUpdate = 1; | |
698 | } | |
699 | ||
09ec0018 | 700 | /* |
701 | * Because we registered for several different kinds of change notifications | |
702 | * this callback usually gets called several times in a row. We use a timer to | |
703 | * de-bounce these so we only end up generating one event for the main thread. | |
704 | */ | |
705 | ||
706 | CFRunLoopTimerSetNextFireDate(threadData->timerRef, | |
411affcf | 707 | CFAbsoluteTimeGetCurrent() + 5); |
09ec0018 | 708 | } |
709 | ||
710 | ||
711 | /* | |
712 | * 'sysEventTimerNotifier()' - Handle delayed event notifications. | |
713 | */ | |
714 | ||
715 | static void | |
716 | sysEventTimerNotifier( | |
717 | CFRunLoopTimerRef timer, /* I - Timer information */ | |
718 | void *context) /* I - Thread context data */ | |
719 | { | |
720 | cupsd_thread_data_t *threadData; /* Thread context data */ | |
721 | ||
722 | ||
723 | threadData = (cupsd_thread_data_t *)context; | |
724 | ||
725 | /* | |
726 | * If an event is still pending send it to the main thread. | |
727 | */ | |
728 | ||
729 | if (threadData->sysevent.event) | |
730 | { | |
731 | write(SysEventPipes[1], &threadData->sysevent, | |
732 | sizeof(threadData->sysevent)); | |
733 | threadData->sysevent.event = 0; | |
734 | } | |
735 | } | |
75bd9771 MS |
736 | |
737 | ||
738 | /* | |
739 | * 'sysUpdate()' - Update the current system state. | |
740 | */ | |
741 | ||
742 | static void | |
743 | sysUpdate(void) | |
744 | { | |
745 | int i; /* Looping var */ | |
746 | cupsd_sysevent_t sysevent; /* The system event */ | |
747 | cupsd_printer_t *p; /* Printer information */ | |
748 | ||
749 | ||
750 | /* | |
751 | * Drain the event pipe... | |
752 | */ | |
753 | ||
754 | while (read((int)SysEventPipes[0], &sysevent, sizeof(sysevent)) | |
755 | == sizeof(sysevent)) | |
756 | { | |
757 | if (sysevent.event & SYSEVENT_CANSLEEP) | |
758 | { | |
759 | /* | |
760 | * If there are active printers that don't have the connecting-to-device | |
761 | * printer-state-reason then cancel the sleep request (i.e. this reason | |
762 | * indicates a job that is not yet connected to the printer)... | |
763 | */ | |
764 | ||
765 | for (p = (cupsd_printer_t *)cupsArrayFirst(Printers); | |
766 | p; | |
767 | p = (cupsd_printer_t *)cupsArrayNext(Printers)) | |
768 | { | |
769 | if (p->job) | |
770 | { | |
771 | for (i = 0; i < p->num_reasons; i ++) | |
772 | if (!strcmp(p->reasons[i], "connecting-to-device")) | |
773 | break; | |
774 | ||
775 | if (!p->num_reasons || i >= p->num_reasons) | |
776 | break; | |
777 | } | |
778 | } | |
779 | ||
780 | if (p) | |
781 | { | |
782 | cupsdLogMessage(CUPSD_LOG_INFO, | |
783 | "System sleep canceled because printer %s is active", | |
784 | p->name); | |
785 | IOCancelPowerChange(sysevent.powerKernelPort, | |
786 | sysevent.powerNotificationID); | |
787 | } | |
788 | else | |
789 | { | |
790 | cupsdLogMessage(CUPSD_LOG_DEBUG, "System wants to sleep"); | |
791 | IOAllowPowerChange(sysevent.powerKernelPort, | |
792 | sysevent.powerNotificationID); | |
793 | } | |
794 | } | |
795 | ||
796 | if (sysevent.event & SYSEVENT_WILLSLEEP) | |
797 | { | |
798 | cupsdLogMessage(CUPSD_LOG_DEBUG, "System going to sleep"); | |
799 | ||
800 | Sleeping = 1; | |
801 | ||
75bd9771 MS |
802 | for (p = (cupsd_printer_t *)cupsArrayFirst(Printers); |
803 | p; | |
804 | p = (cupsd_printer_t *)cupsArrayNext(Printers)) | |
805 | { | |
806 | if (p->type & CUPS_PRINTER_DISCOVERED) | |
807 | { | |
808 | cupsdLogMessage(CUPSD_LOG_DEBUG, | |
809 | "Deleting remote destination \"%s\"", p->name); | |
810 | cupsArraySave(Printers); | |
811 | cupsdDeletePrinter(p, 0); | |
812 | cupsArrayRestore(Printers); | |
813 | } | |
814 | else | |
815 | { | |
816 | cupsdLogMessage(CUPSD_LOG_DEBUG, | |
817 | "Deregistering local printer \"%s\"", p->name); | |
818 | cupsdDeregisterPrinter(p, 0); | |
819 | } | |
820 | } | |
821 | ||
822 | cupsdCleanDirty(); | |
823 | ||
e6013cfa MS |
824 | /* |
825 | * If we have no printing jobs, allow the power change immediately. | |
238c3832 | 826 | * Otherwise set the SleepJobs time to 15 seconds in the future when |
e6013cfa MS |
827 | * we'll take more drastic measures... |
828 | */ | |
829 | ||
830 | if (cupsArrayCount(PrintingJobs) == 0) | |
831 | IOAllowPowerChange(sysevent.powerKernelPort, | |
832 | sysevent.powerNotificationID); | |
833 | else | |
834 | { | |
835 | LastSysEvent = sysevent; | |
238c3832 | 836 | SleepJobs = time(NULL) + 15; |
e6013cfa | 837 | } |
75bd9771 MS |
838 | } |
839 | ||
840 | if (sysevent.event & SYSEVENT_WOKE) | |
841 | { | |
842 | cupsdLogMessage(CUPSD_LOG_DEBUG, "System woke from sleep"); | |
843 | IOAllowPowerChange(sysevent.powerKernelPort, | |
844 | sysevent.powerNotificationID); | |
845 | Sleeping = 0; | |
846 | cupsdCheckJobs(); | |
847 | } | |
848 | ||
849 | if (sysevent.event & SYSEVENT_NETCHANGED) | |
850 | { | |
851 | if (!Sleeping) | |
852 | { | |
853 | cupsdLogMessage(CUPSD_LOG_DEBUG, | |
854 | "System network configuration changed"); | |
855 | ||
856 | /* | |
857 | * Resetting browse_time before calling cupsdSendBrowseList causes | |
858 | * browse packets to be sent for local shared printers. | |
859 | */ | |
860 | ||
861 | for (p = (cupsd_printer_t *)cupsArrayFirst(Printers); | |
862 | p; | |
863 | p = (cupsd_printer_t *)cupsArrayNext(Printers)) | |
864 | p->browse_time = 0; | |
865 | ||
866 | cupsdSendBrowseList(); | |
867 | cupsdRestartPolling(); | |
868 | } | |
869 | else | |
870 | cupsdLogMessage(CUPSD_LOG_DEBUG, | |
871 | "System network configuration changed; " | |
872 | "ignored while sleeping"); | |
873 | } | |
874 | ||
875 | if (sysevent.event & SYSEVENT_NAMECHANGED) | |
876 | { | |
877 | if (!Sleeping) | |
878 | { | |
e07d4801 MS |
879 | cupsdLogMessage(CUPSD_LOG_DEBUG, |
880 | "Computer name or BTMM domains changed"); | |
75bd9771 MS |
881 | |
882 | /* | |
883 | * De-register the individual printers... | |
884 | */ | |
885 | ||
886 | for (p = (cupsd_printer_t *)cupsArrayFirst(Printers); | |
887 | p; | |
888 | p = (cupsd_printer_t *)cupsArrayNext(Printers)) | |
889 | cupsdDeregisterPrinter(p, 1); | |
890 | ||
891 | /* | |
e07d4801 | 892 | * Update the computer name and BTMM domain list... |
75bd9771 MS |
893 | */ |
894 | ||
895 | cupsdUpdateDNSSDName(); | |
896 | ||
897 | /* | |
898 | * Now re-register them... | |
899 | */ | |
900 | ||
901 | for (p = (cupsd_printer_t *)cupsArrayFirst(Printers); | |
902 | p; | |
903 | p = (cupsd_printer_t *)cupsArrayNext(Printers)) | |
904 | { | |
905 | p->browse_time = 0; | |
906 | cupsdRegisterPrinter(p); | |
907 | } | |
908 | } | |
909 | else | |
910 | cupsdLogMessage(CUPSD_LOG_DEBUG, | |
e07d4801 MS |
911 | "Computer name or BTMM domains changed; ignored while " |
912 | "sleeping"); | |
75bd9771 MS |
913 | } |
914 | } | |
915 | } | |
a4d04587 | 916 | #endif /* __APPLE__ */ |
09ec0018 | 917 | |
918 | ||
919 | /* | |
b19ccc9e | 920 | * End of "$Id: sysman.c 7928 2008-09-10 22:14:22Z mike $". |
09ec0018 | 921 | */ |