iokit/Kernel/IOPMrootDomain.cpp

906     wrangler = NULL;
2428     // Disregard disk I/O (anything besides the display wrangler)
2432         addNotRemove && (service != wrangler) && (service != this))
2623     if (!wrangler)
2633         // Display wrangler is already asleep, it won't trigger the next
2676             if (idleSeconds && !wrangler)
4296         wrangler = service;
4584         // Optimization to ignore wrangler power down thus skipping
4946     assert(service == wrangler);
4948     if (service == wrangler)
4954             DLOG("display wrangler tickled1 %d lastSleepReason %d\n", userActivityCount, lastSleepReason);
4962         DLOG("display wrangler tickled\n");
5264             // Display wrangler has dropped power due to display idle
5281             // Display wrangler has powered on due to user activity
5308     // found the display wrangler, now install a handler
5328     if(!wrangler)
5333             wrangler = (IOService *) iter->getNextObject();
5338     if(wrangler)
5339         wrangler->activityTickle(0,0);
5940         // Lack of AC may have latched a display wrangler tickle.
6181                 if(wrangler)
6182                     wrangler->activityTickle(0,0);
6341         if (!wrangler)
6351             // Start idle sleep timer if wrangler went to sleep
6396             if (!wrangler)
6432         if (wrangler) {
6435             DLOG("wrangler->setIgnoreIdleTimer\(%d)\n", value);
6436             wrangler->setIgnoreIdleTimer( value );