iokit/Kernel/IOService.cpp

1027             ArbitrationLockQueueElement * victim = 0;
1053                         victim = waiting;
1087                             if( victim ) {
1089                                 // we do have a willing victim, fail it's lock
1090                                 victim->aborted = true;
1092                                 // take the victim off the waiting queue
1094                                               victim,
1098                                 // wake the victim
1100                                               victim,
1708     IOService *	 victim;
1741     victim = this;
1742     victim->retain();
1744     while( victim ) {
1746 		didInactive = victim->lockForArbitration( true );
1748             didInactive = (0 == (victim->__state[0] & kIOServiceInactiveState));
1750                 victim->__state[0] |= kIOServiceInactiveState;
1751                 victim->__state[0] &= ~(kIOServiceRegisteredState | kIOServiceMatchedState
1754 				if (victim == this)
1755 					victim->__state[1] |= kIOServiceTermPhase1State;
1757                 victim->_adjustBusy( 1 );
1759             } else if (victim != this) do {
1762 				wait = (victim->__state[1] & kIOServiceTermPhase1State);
1764 				    TLOG("%s::waitPhase1(%s)\n", getName(), victim->getName());
1765 					victim->__state[1] |= kIOServiceTerm1WaiterState;
1766 					victim->unlockForArbitration();
1767 					assert_wait((event_t)&victim->__state[1], THREAD_UNINT);
1772 				    TLOG("%s::did waitPhase1(%s)\n", getName(), victim->getName());
1773 					victim->lockForArbitration();
1777 			victim->unlockForArbitration();
1779         if( victim == this)
1783             victim->deliverNotification( gIOTerminatedNotification, 0, 0xffffffff );
1784             IOUserClient::destroyUserReferences( victim );
1786             iter = victim->getClientIterator();
1790                             client->getName(), victim->getName(), (long long)options);
1791                     ok = client->requestTerminate( victim, options );
1793                             client->getName(), victim->getName(), ok);
1796 		    uint64_t regID2 = victim->getRegistryEntryID();
1811         victim->release();
1812         victim = (IOService *) makeInactive->getObject(0);
1813         if( victim) {
1814             victim->retain();
1890                 // wait for the victim to go non-busy
2014 void IOService::actionWillTerminate( IOService * victim, IOOptionBits options,
2023     iter = victim->getClientIterator();
2027                     client->getName(), victim->getName(), (long long)options);
2030 	    uint64_t regID2 = victim->getRegistryEntryID();
2038             ok = client->willTerminate( victim, options );
2045 void IOService::actionDidTerminate( IOService * victim, IOOptionBits options,
2053     victim->messageClients( kIOMessageServiceIsTerminated, (void *)(uintptr_t) options );
2055     iter = victim->getClientIterator();
2059                     client->getName(), victim->getName(), (long long)options);
2060             client->didTerminate( victim, options, &defer );
2063 	    uint64_t regID2 = victim->getRegistryEntryID();
2073                     client->getName(), victim->getName(), defer);
2079 void IOService::actionFinalize( IOService * victim, IOOptionBits options,
2083     TLOG("%s::finalize(%08llx)\n", victim->getName(), (long long)options);
2085     uint64_t regID1 = victim->getRegistryEntryID();
2092     victim->finalize( options );
2124     IOService * 	victim;
2143         while( (victim = (IOService *) gIOTerminatePhase2List->getObject(0) )) {
2145             victim->retain();
2149             while( victim ) {
2151                 doPhase2 = victim->lockForArbitration( true );
2153                     doPhase2 = (0 != (kIOServiceInactiveState & victim->__state[0]));
2155                         doPhase2 = (0 == (victim->__state[1] & kIOServiceTermPhase2State))
2156                                 && (0 == (victim->__state[1] & kIOServiceConfigState));
2158 			if (doPhase2 && (iter = victim->getClientIterator())) {
2165                             victim->__state[1] |= kIOServiceTermPhase2State;
2167                     victim->unlockForArbitration();
2170                     if( 0 == victim->getClient()) {
2173                         gIOFinalizeList->tailQ( victim );
2177                                             victim, (void *)(uintptr_t) options, (void *)(uintptr_t) doPhase2List );
2179                     didPhase2List->headQ( victim );
2181                 victim->release();
2182                 victim = (IOService *) doPhase2List->getObject(0);
2183                 if( victim) {
2184                     victim->retain();
2189             while( (victim = (IOService *) didPhase2List->getObject(0)) ) {
2191                 if( victim->lockForArbitration( true )) {
2192                     victim->__state[1] |= kIOServiceTermPhase3State;
2193                     victim->unlockForArbitration();
2196                                     victim, (void *)(uintptr_t) options );
2206             while( (victim = (IOService *) gIOFinalizeList->getObject(0))) {
2210                                     victim, (void *)(uintptr_t) options );
2213                 freeList->setObject( victim );