iokit/Kernel/IOPMrootDomain.cpp

951     wrangler = NULL;
959     // Will never transition to user inactive w/o wrangler.
2463     // Disregard disk I/O (anything besides the display wrangler)
2466         addNotRemove && (service != wrangler) && (service != this))
2504     if (addNotRemove && (service == wrangler) && !checkSystemCanSustainFullWake())
2666     if (!wrangler)
4447         wrangler = service;
4885                     lastSleepReason = 0; // stop logging wrangler tickles
4891                     // userIsActive will be cleared by wrangler powering down
4911                     if (wrangler) wrangler->changePowerStateForRootDomain(
5173     assert(service == wrangler);
5180         DLOG("display wrangler tickled1 %d lastSleepReason %d\n",
5188         DLOG("display wrangler tickled\n");
5209     assert(service == wrangler);
5212     // by monitoring changes to the display wrangler's device desire.
5215     // 1. Wrangler's DeviceDesire increases to max, but wrangler is already
5225     DLOG("wrangler %s (ps %u, %u->%u)\n",
5256     if (wrangler && !_preventUserActive)
5258         // Allowing transition to user active, but the wrangler may have
5263         if ((wrangler->getPowerState() == kWranglerPowerStateMax) &&
5264             (wrangler->getPowerStateForClient(gIOPMPowerClientDevice) ==
5568     DLOG("wrangler %s ps %d\n",
5573             // Display wrangler has dropped power due to display idle
5587             // Display wrangler has powered on due to user activity
5621     // found the display wrangler, now install a handler
5677     if(!wrangler)
5682             wrangler = (IOService *) iter->getNextObject();
5687     if(wrangler)
5688         wrangler->activityTickle(0,0);
6087             if (!wrangler) break;
6090                 // Force wrangler to max power state. If system is in dark wake
6091                 // this alone won't raise the wrangler's power state.
6093                 wrangler->changePowerStateForRootDomain(kWranglerPowerStateMax);
6107                 // Must first transition to state 1 since wrangler doesn't
6109                 // domain is removed from the wrangler's power client list.
6111                 wrangler->changePowerStateForRootDomain(kWranglerPowerStateMin + 1);
6112                 wrangler->changePowerStateForRootDomain(kWranglerPowerStateMin);
6351         // Lack of AC may have latched a display wrangler tickle.
6457                 // first transition to wrangler sleep or lower
6554             if(wrangler && wranglerIdleSettings)
6556                 // Request wrangler idle only when demand sleep is triggered
6560                     wrangler->setProperties(wranglerIdleSettings);
6561                     DLOG("Requested wrangler idle\n");
6597                 // Keep wranglerAsleep an invariant when wrangler is absent
6598                 if (wrangler)
6718         if (!wrangler)
6753             if (!wrangler)
6836         if (wrangler)
6837             wrangler->activityTickle(0,0);
6922         if (wrangler) {
6925             DLOG("wrangler->setIgnoreIdleTimer\(%d)\n", value);
6926             wrangler->setIgnoreIdleTimer( value );