Ejemplos de iokit_add_reference en C++ (Cpp)

Ejemplo n.º 1

Archivo: iokit_rpc.c Proyecto: Apple-FOSS-Mirror/xnu

EXTERN io_object_t
iokit_lookup_connect_ref(io_object_t connectRef, ipc_space_t space)
{
	io_object_t obj = NULL;

	if (connectRef && MACH_PORT_VALID(CAST_MACH_PORT_TO_NAME(connectRef))) {
		ipc_port_t port;
		kern_return_t kr;

		kr = ipc_object_translate(space, CAST_MACH_PORT_TO_NAME(connectRef), MACH_PORT_RIGHT_SEND, (ipc_object_t *)&port);

		if (kr == KERN_SUCCESS) {
			assert(IP_VALID(port));

			ip_reference(port);
			ip_unlock(port);

			iokit_lock_port(port);
			if (ip_active(port) && (ip_kotype(port) == IKOT_IOKIT_CONNECT)) {
				obj = (io_object_t) port->ip_kobject;
				iokit_add_reference(obj);
			}
			iokit_unlock_port(port);

			ip_release(port);
		}
	}

	return obj;
}

Ejemplo n.º 2

Archivo: iokit_rpc.c Proyecto: wzw19890321/xnu-1

static void
iokit_no_senders( mach_no_senders_notification_t * notification )
{
    ipc_port_t		port;
    io_object_t		obj = NULL;
    ipc_kobject_type_t	type = IKOT_NONE;
    ipc_port_t		notify;

    port = (ipc_port_t) notification->not_header.msgh_remote_port;

    // convert a port to io_object_t.
    if( IP_VALID(port)) {
        iokit_lock_port(port);
        if( ip_active(port)) {
            obj = (io_object_t) port->ip_kobject;
	    type = ip_kotype( port );
            if( (IKOT_IOKIT_OBJECT  == type)
	     || (IKOT_IOKIT_CONNECT == type))
                iokit_add_reference( obj );
            else
                obj = NULL;
	}
        iokit_unlock_port(port);

        if( obj ) {

	    mach_port_mscount_t mscount = notification->not_count;

            if( KERN_SUCCESS != iokit_client_died( obj, port, type, &mscount ))
	    {
		/* Re-request no-senders notifications on the port (if still active) */
		ip_lock(port);
		if (ip_active(port)) {
			notify = ipc_port_make_sonce_locked(port);
			ipc_port_nsrequest( port, mscount + 1, notify, &notify);
			/* port unlocked */
			if ( notify != IP_NULL)
				ipc_port_release_sonce(notify);
		} else {
			ip_unlock(port);
		}
	    }
            iokit_remove_reference( obj );
        }
    }
}

Ejemplo n.º 3

Archivo: iokit_rpc.c Proyecto: wzw19890321/xnu-1

/*
 * Lookup a device by its port.
 * Doesn't consume the naked send right; produces a device reference.
 */
MIGEXTERN io_object_t
iokit_lookup_object_port(
	ipc_port_t	port)
{
	io_object_t	obj;

	if (!IP_VALID(port))
	    return (NULL);

	iokit_lock_port(port);
	if (ip_active(port) && (ip_kotype(port) == IKOT_IOKIT_OBJECT)) {
	    obj = (io_object_t) port->ip_kobject;
	    iokit_add_reference( obj );
	}
	else
	    obj = NULL;

	iokit_unlock_port(port);

	return( obj );
}