iokit/Kernel/IOUserClient.cpp

247     IOMachPort *	machPort;
255 	machPort = (IOMachPort *) dict->getObject( (const OSSymbol *) obj );
256 	if( machPort) {
257 	    destroyed = (machPort->mscount <= *mscount);
261 		*mscount = machPort->mscount;
275     IOMachPort *	machPort;
281 	machPort = (IOMachPort *) dict->getObject( (const OSSymbol *) obj );
282 	if( machPort && !machPort->holdDestroy)
293     IOMachPort * 	machPort;
298         machPort = (IOMachPort *) dict->getObject( (const OSSymbol *) obj );
299         if( machPort)
300             machPort->holdDestroy = true;
396     IOMachPort * machPort;
399     if( (machPort = IOMachPort::portForObject( obj, type ))) {
401 	port = machPort->port;
405 	machPort->release();