IOReturn IOHIDEventSystemUserClient::clientMemoryForType( UInt32 type,
UInt32 * flags, IOMemoryDescriptor ** memory )
{
IODataQueue * eventQueue = NULL;
IOReturn ret = kIOReturnNoMemory;
if (type == kIOHIDEventSystemKernelQueueID)
eventQueue = kernelQueue;
else
eventQueue = copyDataQueueWithID(type);
if ( eventQueue ) {
IOMemoryDescriptor * desc = NULL;
*flags = 0;
desc = eventQueue->getMemoryDescriptor();
if ( desc ) {
desc->retain();
ret = kIOReturnSuccess;
}
*memory = desc;
if (type != kIOHIDEventSystemKernelQueueID)
eventQueue->release();
} else {
ret = kIOReturnBadArgument;
}
return ret;
}
IOReturn IOHIDEventSystemUserClient::clientMemoryForType( UInt32 type,
UInt32 * flags, IOMemoryDescriptor ** memory )
{
IODataQueue * eventQueue = OSDynamicCast(IODataQueue, (OSObject*)type);
IOReturn ret = kIOReturnNoMemory;
if ( eventQueue ) {
IOMemoryDescriptor * desc = NULL;
*flags = 0;
desc = eventQueue->getMemoryDescriptor();
if ( desc ) {
desc->retain();
ret = kIOReturnSuccess;
}
*memory = desc;
} else {
ret = kIOReturnBadArgument;
}
return ret;
}
