private SubmissionQueue(uint *head, uint *tail, uint *ringMask, uint *ringEntries, uint *flags, uint *dropped, uint *array, io_uring_sqe *sqes)
{
_head = head;
_tail = tail;
_ringMask = ringMask;
_ringEntries = ringEntries;
_flags = flags;
_dropped = dropped;
_array = array;
_sqes = sqes;
_tailInternal = 0;
_headInternal = 0;
}
public SubmissionQueue(int ringFd, void *ringBase, io_sqring_offsets *offsets, io_uring_sqe *elements, bool sqPolled, bool ioPolled)
: this(ringBase, offsets)
{
_ringFd = ringFd;
_head = Add <uint>(ringBase, offsets->head);
_tail = Add <uint>(ringBase, offsets->tail);
_ringMask = *Add <uint>(ringBase, offsets->ring_mask);
_ringEntries = *Add <uint>(ringBase, offsets->ring_entries);
_flags = Add <uint>(ringBase, offsets->flags);
_dropped = Add <uint>(ringBase, offsets->dropped);
_array = Add <uint>(ringBase, offsets->array);
_sqes = elements;
_tailInternal = 0;
_headInternal = 0;
_sqPolled = sqPolled;
_ioPolled = ioPolled;
}
private bool NextSubmissionQueueEntry(out io_uring_sqe *sqe)
{
sqe = _sq.NextSubmissionQueueEntry();
if (sqe == NULL)
{
if (Flush(Submit()) > 0)
{
// Flushed one more item, retry to get an entry
sqe = _sq.NextSubmissionQueueEntry();
if (sqe == NULL)
{
return(false);
}
}
}
return(true);
}
private SubmissionAcquireResult NextSubmissionQueueEntry(out io_uring_sqe *sqe)
{
sqe = (io_uring_sqe *)NULL;
if (!CheckAndIncrementOperationsInFlight())
{
return(SubmissionAcquireResult.TooManyOperationsInFlight);
}
var result = _sq.NextSubmissionQueueEntry();
if (result == NULL)
{
return(SubmissionAcquireResult.SubmissionQueueFull);
}
sqe = result;
return(SubmissionAcquireResult.SubmissionAcquired);
}
internal Submission(io_uring_sqe *sqe)
{
_sqe = sqe;
}
public static SubmissionQueue CreateSubmissionQueue(void *ringBase, io_sqring_offsets *offsets, io_uring_sqe *elements)
=> new SubmissionQueue(
head: Add <uint>(ringBase, offsets->head),
tail: Add <uint>(ringBase, offsets->tail),
ringMask: Add <uint>(ringBase, offsets->ring_mask),
ringEntries: Add <uint>(ringBase, offsets->ring_entries),
flags: Add <uint>(ringBase, offsets->flags),
dropped: Add <uint>(ringBase, offsets->dropped),
array: Add <uint>(ringBase, offsets->array),
sqes: elements
);
internal Submission(io_uring_sqe *sqe, uint index)
{
_sqe = sqe;
Index = index;
}
