64 	OSSharedPtr<IODataQueue> dataQueue = OSMakeShared<IODataQueue>();  in OSDefineMetaClassAndStructors()  local
66 	if (dataQueue) {  in OSDefineMetaClassAndStructors()
67 		if (!dataQueue->initWithCapacity(size)) {  in OSDefineMetaClassAndStructors()
72 	return dataQueue;  in OSDefineMetaClassAndStructors()
78 	OSSharedPtr<IODataQueue> dataQueue = OSMakeShared<IODataQueue>();  in withEntries()  local
80 	if (dataQueue) {  in withEntries()
81 		if (!dataQueue->initWithEntries(numEntries, entrySize)) {  in withEntries()
86 	return dataQueue;  in withEntries()
113 	kr = kmem_alloc(kernel_map, (vm_offset_t *)&dataQueue, allocSize,  in initWithCapacity()
119 	dataQueue->queueSize    = size;  in initWithCapacity()
146 		if (dataQueue) {  in free()
147 			kmem_free(kernel_map, (vm_offset_t)dataQueue,  in free()
150 			dataQueue = NULL;  in free()
179 	tail = __c11_atomic_load((_Atomic UInt32 *)&dataQueue->tail, __ATOMIC_RELAXED);  in enqueue()
180 	head = __c11_atomic_load((_Atomic UInt32 *)&dataQueue->head, __ATOMIC_ACQUIRE);  in enqueue()
192 			entry = (IODataQueueEntry *)((UInt8 *)dataQueue->queue + tail);  in enqueue()
206 			dataQueue->queue->size = dataSize;  in enqueue()
213 				((IODataQueueEntry *)((UInt8 *)dataQueue->queue + tail))->size = dataSize;  in enqueue()
216 			__nochk_memcpy(&dataQueue->queue->data, data, dataSize);  in enqueue()
226 			entry = (IODataQueueEntry *)((UInt8 *)dataQueue->queue + tail);  in enqueue()
237 	__c11_atomic_store((_Atomic UInt32 *)&dataQueue->tail, newTail, __ATOMIC_RELEASE);  in enqueue()
250 		head = __c11_atomic_load((_Atomic UInt32 *)&dataQueue->head, __ATOMIC_RELAXED);  in enqueue()
301 	if (dataQueue != NULL) {  in getMemoryDescriptor()
302 …descriptor = IOMemoryDescriptor::withAddress(dataQueue, queueSize + DATA_QUEUE_MEMORY_HEADER_SIZE,…  in getMemoryDescriptor()