iokit/Kernel/IOWorkLoop.cpp

224 	// in this case disable all of the event source, mark the loop
227 	// benefit of our event sources so we can disable them cleanly.
240         IOEventSource *event, *next;
242         for (event = eventChain; event; event = next) {
243             next = event->getNext();
244             event->setWorkLoop(0);
245             event->setNext(0);
246             event->release();
250         for (event = passiveEventChain; event; event = next) {
251             next = event->getNext();
252             event->setWorkLoop(0);
253             event->setNext(0);
254             event->release();
300     IOEventSource *event;
302     for (event = eventChain; event; event = event->getNext())
303         event->enable();
305     for (event = passiveEventChain; event; event = event->getNext())
306         event->enable();
311     IOEventSource *event;
313     for (event = eventChain; event; event = event->getNext())
314 		event->disable();
317     for (event = passiveEventChain; event; event = event->getNext())
318         if (event != controlG)	// Don't disable the control gate
319             event->disable();
324     IOEventSource *event;
326     for (event = eventChain; event; event = event->getNext())
327         if (OSDynamicCast(IOInterruptEventSource, event))
328             event->enable();
333     IOEventSource *event;
335     for (event = eventChain; event; event = event->getNext())
336         if (OSDynamicCast(IOInterruptEventSource, event))
337             event->disable();
361 		/* NOTE: only loop over event sources in eventChain. Bypass "passive" event sources for performance */
441 // Internal APIs used by event sources to control the thread
473 int IOWorkLoop::sleepGate(void *event, UInt32 interuptibleType)
477     res = IORecursiveLockSleep(gateLock, event, interuptibleType);
482 int IOWorkLoop::sleepGate(void *event, AbsoluteTime deadline, UInt32 interuptibleType)
486     res = IORecursiveLockSleepDeadline(gateLock, event, deadline, interuptibleType);
491 void IOWorkLoop::wakeupGate(void *event, bool oneThread)
493     IORecursiveLockWakeup(gateLock, event, oneThread);
526     		/* Check if this is a passive or active event source being added */
532             	    IOEventSource *event, *next;
534                 	for (event = eventChain; (next = event->getNext()); event = next)
536                 	event->setNext(inEvent);
546             	    IOEventSource *event, *next;
548                 	for (event = passiveEventChain; (next = event->getNext()); event = next)
550                 	event->setNext(inEvent);
567 					IOEventSource *event, *next;
569 					event = eventChain;
570 					while ((next = event->getNext()) && next != inEvent)
571 						event = next;
577 					event->setNext(inEvent->getNext());
584 					IOEventSource *event, *next;
586 					event = passiveEventChain;
587 					while ((next = event->getNext()) && next != inEvent)
588 						event = next;
594 					event->setNext(inEvent->getNext());
624 	 * the workloop to which this event source is getting attached.