iokit/Kernel/IOUserClient.cpp

457     PingMsg	*	pingMsg;
488     PingMsg *		pingMsg;
594     pingMsg = (PingMsg *) IOMalloc( msgSize);
595     if( !pingMsg)
598     bzero( pingMsg, msgSize);
600     pingMsg->msgHdr.msgh_remote_port	= port;
601     pingMsg->msgHdr.msgh_bits 		= MACH_MSGH_BITS(
604     pingMsg->msgHdr.msgh_size 		= msgSize;
605     pingMsg->msgHdr.msgh_id		= kOSNotificationMessageID;
607     pingMsg->notifyHeader.size = 0;
608     pingMsg->notifyHeader.type = type;
609     bcopy( reference, pingMsg->notifyHeader.reference, referenceSize );
621     _pingMsg   = pingMsg;
668     if( kIOServiceTerminatedNotificationType == pingMsg->notifyHeader.type)
673             pingMsg->msgHdr.msgh_local_port = port;
675             pingMsg->msgHdr.msgh_local_port = NULL;
677         kr = mach_msg_send_from_kernel_proper( &pingMsg->msgHdr,
678                                         pingMsg->msgHdr.msgh_size);
737     pingMsg = (PingMsg *) IOMalloc( msgSize);
738     if( !pingMsg)
741     bzero( pingMsg, msgSize);
743     pingMsg->msgHdr.msgh_remote_port	= port;
744     pingMsg->msgHdr.msgh_bits 		= MACH_MSGH_BITS_COMPLEX
748     pingMsg->msgHdr.msgh_size 		= msgSize;
749     pingMsg->msgHdr.msgh_id		= kOSNotificationMessageID;
751     pingMsg->msgBody.msgh_descriptor_count = 1;
753     pingMsg->ports[0].name 		= 0;
754     pingMsg->ports[0].disposition 	= MACH_MSG_TYPE_MAKE_SEND;
755     pingMsg->ports[0].type 		= MACH_MSG_PORT_DESCRIPTOR;
757     pingMsg->notifyHeader.size 		= extraSize;
758     pingMsg->notifyHeader.type 		= type;
759     bcopy( reference, pingMsg->notifyHeader.reference, referenceSize );
769     _pingMsg   = pingMsg;
797 					((((uint8_t *) pingMsg) + msgSize) - pingMsg->notifyHeader.size);
798                                         // == pingMsg->notifyHeader.content;
825     pingMsg->msgHdr.msgh_size = msgSize - pingMsg->notifyHeader.size
831     pingMsg->ports[0].name = providerPort;
833     pingMsg->msgHdr.msgh_local_port = thisPort;
834     kr = mach_msg_send_from_kernel_proper( &pingMsg->msgHdr,
835 				    pingMsg->msgHdr.msgh_size);